Commit graph

2497 commits

Author SHA1 Message Date
Rebecca Turner
cb7fbd4d83
Print value on type error
Adds the failing value to `value is <TYPE> while a <TYPE> is expected`
error messages.
2024-01-22 08:56:02 -08:00
Eelco Dolstra
16ccca2e86
Merge pull request #9703 from fricklerhandwerk/upgrade-no-channel
don't show `nix-channel` in upgrade instructions
2024-01-22 14:46:47 +01:00
John Ericson
a0b86b3160
Merge pull request #9760 from hercules-ci/doc-glossary-nix-expression
doc/glossary: Nix expression can be language expression
2024-01-22 08:26:01 -05:00
Théophane Hufschmitt
c8d33bca8d
Merge pull request #9822 from obsidiansystems/algo-vs-hash-algo
Start standardizing hash algo flags
2024-01-22 11:08:24 +01:00
John Ericson
da1aae2d06
Merge pull request #9821 from obsidiansystems/fix-typo
Fix typo in upcomming release notes
2024-01-20 18:03:25 -05:00
John Ericson
202c5e2afc Start standardizing hash algo flags
Do this if we want to do `--hash-algo` everywhere, and not `--algo` for
hash commands.

The new `nix hash convert` is updated. Deprecated new CLI commands are
left as-is (`nix hash path` needs to be redone and is also left as-is).
2024-01-20 17:29:35 -05:00
John Ericson
a93b204c27
Merge pull request #9348 from obsidiansystems/json-formats
Document JSON formats
2024-01-20 17:22:39 -05:00
John Ericson
65294fe5fe Fix typo in upcomming release notes
Thanks @cole-h for finding in https://github.com/NixOS/nix/pull/9815#discussion_r1460604130
2024-01-20 17:07:21 -05:00
John Ericson
edf3ecc497 Document JSON formats
Good to document these formats separately from commands that happen to
use them.

Eventually I would like this and `builtins.derivation` to refer to a
store section on derivations that is authoritative, but that doesn't yet
exist, and will take some time to make. So I think we're just best off
merging this now as is.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2024-01-20 17:03:47 -05:00
Rebecca Turner
561a56cd13
Add release notes 2024-01-20 00:04:06 -08:00
John Ericson
356352c370 Add missing --hash-algo flag to nix store add 2024-01-19 23:11:18 -05:00
John Ericson
a34ec0bd12 Include store path exact spec in the docs
This is niche, but deserves to be in the manual because it is describing
behavior visible to the outside world, not mere implementation details.
2024-01-18 22:19:14 -05:00
Robert Hensing
4e8483d09d
Merge pull request #9792 from fricklerhandwerk/move-section
move section on make variables
2024-01-19 00:55:33 +01:00
Robert Hensing
14f470ec4e
doc/hacking.md: Hint short option make -e
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2024-01-19 00:32:30 +01:00
Valentin Gagarin
28eb406834 reword section on make variables
- use one line per sentence
- use imperative for instructions
- add link to Make documentation
2024-01-17 04:39:26 +01:00
Valentin Gagarin
f134dbdffb move section on make variables
it should be after the general build instructions, as it goes into more detail.
2024-01-17 04:23:16 +01:00
Valentin Gagarin
55da939424 fix typo 2024-01-17 02:57:11 +01:00
Robert Hensing
2a3c5e6b8b
Merge pull request #9480 from NixOS/libfetchers-git-exportIgnore
libfetchers/git: Support export-ignore
2024-01-16 23:03:46 +01:00
Robert Hensing
51f524c629
Merge pull request #9755 from 9999years/printer-followup
Printer followup
2024-01-16 22:35:08 +01:00
Robert Hensing
85a1cd9bd5
Merge pull request #9762 from hercules-ci/doc-glossary-package
doc/glossary: Define package and package attribute set
2024-01-16 15:34:59 +01:00
Robert Hensing
baea5f42c6
doc/glossary: Simplify software package definition
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2024-01-16 14:50:53 +01:00
John Ericson
9b9ecdee34 Simplify RapidCheck configure
No more `RAPIDCHECK_HEADERS`!
2024-01-15 08:05:05 -05:00
Robert Hensing
7e5fa5c25c doc/glossary: Define package and package attribute set
A small step towards https://github.com/NixOS/nix/issues/6507

I believe this incomplete definition is one that can be agreed on.
It would be nice to define more, but considering that the issue
also proposes changes to the design, I believe we should hold off
on those.

As for the wording, we're dealing with some very general and vague
terms, that have to be treated with exactly the right amount of
vagueness to be effective.

I start out with a fairly abstract definition of package.
1. to establish a baseline so we know what we're talking about
2. so that we can go in and clarify that we have an extra, Nix-specific
   definition.

"Software" is notoriously ill-defined, so it makes a great qualifier
for package, which we don't really want to pin down either, because
that would just get us lost in discussion.
We can come back to this after we've done 6057 and a few years in a
desert cave.

Then comes the "package attribute set" definition.
I can already hear Valentin say "That's not even Nix's responsibility!"
and on some days I might even agree.
However, in our current reality, we have `nix-env`, `nix-build` and
`nix profile`, which query the `outputName` attribute - among others -
which just don't exist in the derivation.

For those who can't believe what they're reading:

    $ nix-build --expr 'with import ./. {}; bind // {outputName = "lib";}' --no-out-link
    this path will be fetched (1.16 MiB download, 3.72 MiB unpacked):
      /nix/store/rfk6klfx3z972gavxlw6iypnj6j806ma-bind-9.18.21-lib
    copying path '/nix/store/rfk6klfx3z972gavxlw6iypnj6j806ma-bind-9.18.21-lib' from 'https://cache.nixos.org'...
    /nix/store/rfk6klfx3z972gavxlw6iypnj6j806ma-bind-9.18.21-lib

and let me tell you that bind is not a library.

So anyway, that's also proof of why calling this a "derivation attrset" would be wrong, despite the type attribute.
2024-01-13 20:00:06 +01:00
Robert Hensing
e838ac98d4 doc/glossary: Nix expression can be language expression 2024-01-13 19:42:05 +01:00
Qyriad
cbd5553d57
doc: provide context in glossary definitions (#9378) 2024-01-13 12:20:08 +01:00
Rebecca Turner
f73e50144f
Clarify ambiguity in nix-instantiate man page 2024-01-12 13:53:45 -08:00
Rebecca Turner
2d96c7a51f
Remove outdated reference to y in nix-instantiate man page 2024-01-12 11:27:31 -08:00
Rebecca Turner
b29be1ff57
Document unit tests in hacking.md 2024-01-12 10:47:49 -08:00
Eelco Dolstra
8c7e2ed77c Update release notes 2024-01-12 16:21:07 +01:00
Robert Hensing
71d08af15b rl-next: Add *general* note about git fetcher reimpl 2024-01-12 15:31:53 +01:00
Rebecca Turner
df84dd4d8d
Restore ambiguous value printer for nix-instantiate
The Nix team has requested that this output format remain unchanged.
I've added a warning to the man page explaining that `nix-instantiate
--eval` output will not parse correctly in many situations.
2024-01-11 16:34:36 -08:00
Valentin Gagarin
6a243e5ed2
fix an old lost direct (#9458)
this part must have been moved quite a while ago, but apparently so far
no one noticed
2024-01-08 19:38:36 +01:00
Valentin Gagarin
fe751fbde2 don't show channels in upgrade instructions
channels make everything more stateful, and therefore more complicated
and potentially confusing, but aren't needed for this task, so don't encourage their use.
2024-01-07 01:07:11 +01:00
Valentin Gagarin
8e865f3aba
deduplicate installation instructions (#9507)
* deduplicate installation instructions

- reorder sections to present pinned installation more prominently
- remove outdated notes on the macOS installer rework
- update instructions to handle the installer tarball

Co-authored-by: Travis A. Everett <travis.a.everett@gmail.com>
2024-01-06 22:45:25 +01:00
wiki-me
a4d33e816e
Improve documentation around upgrading nix (#9679)
* Improve documentation around upgrading nix, add replacing nix channel with new one

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2024-01-06 18:01:10 +00:00
Rebecca Turner
d8a2b06e20
Remove clang11Stdenv
Clang 11 doesn't have support for three-way-comparisons (<=>, "spaceship
operator", "consistent comparisons") and is older than `clangStdenv`.

`clangStdenv` is currently 12 on FreeBSD and Android and 16 on other
platforms:

32e718f00c/pkgs/top-level/all-packages.nix (L16629-L16644)

Let's start by removing Clang 11 from our distribution. Next we can
consider upgrading to Clang 17, which fully supports the spaceship
operator:

https://releases.llvm.org/17.0.1/tools/clang/docs/ReleaseNotes.html#what-s-new-in-clang-release
2024-01-04 11:43:56 -08:00
Robert Hensing
83f5622545
Merge pull request #9658 from pennae/env-diet
reduce the size of Env by one pointer
2023-12-31 13:57:16 +01:00
Robert Hensing
3511430902
Merge pull request #9673 from pennae/drv-parse-opts
optimize derivation parsing
2023-12-31 13:49:03 +01:00
pennae
1fe66852ff reduce the size of Env by one pointer
since `up` and `values` are both pointer-aligned the type field will
also be pointer-aligned, wasting 48 bits of space on most machines. we
can get away with removing the type field altogether by encoding some
information into the `with` expr that created the env to begin with,
reducing the GC load for the absolutely massive amount of single-entry
envs we create for lambdas. this reduces memory usage of system eval by
quite a bit (reducing heap size of our system eval from 8.4GB to 8.23GB)
and gives similar savings in eval time.

running `nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'`

before:

  Time (mean ± σ):      5.576 s ±  0.003 s    [User: 5.197 s, System: 0.378 s]
  Range (min … max):    5.572 s …  5.581 s    10 runs

after:

  Time (mean ± σ):      5.408 s ±  0.002 s    [User: 5.019 s, System: 0.388 s]
  Range (min … max):    5.405 s …  5.411 s    10 runs
2023-12-30 18:55:13 +01:00
pennae
79d3d412ca optimize derivation string parsing
a bunch of derivation strings contain no escape sequences. we can
optimize for this fact by first scanning for the end of a derivation
string and simply returning the contents unmodified if no escape
sequences were found. to make this even more efficient we can also use
BackedStringViews to avoid copies, avoiding heap allocations for
transient data.

before:

Benchmark 1: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
  Time (mean ± σ):      6.952 s ±  0.015 s    [User: 5.294 s, System: 1.452 s]
  Range (min … max):    6.926 s …  6.974 s    10 runs

after:

Benchmark 1: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
  Time (mean ± σ):      6.907 s ±  0.012 s    [User: 5.272 s, System: 1.429 s]
  Range (min … max):    6.893 s …  6.926 s    10 runs
2023-12-30 18:44:10 +01:00
Rebecca Turner
7434caca05
Fix segfault on infinite recursion in some cases
This fixes a segfault on infinite function call recursion (rather than
infinite thunk recursion) by tracking the function call depth in
`EvalState`.

Additionally, to avoid printing extremely long stack traces, stack
frames are now deduplicated, with a `(19997 duplicate traces omitted)`
message. This should only really be triggered in infinite recursion
scenarios.

Before:

    $ nix-instantiate --eval --expr '(x: x x) (x: x x)'
    Segmentation fault: 11

After:

    $ nix-instantiate --eval --expr '(x: x x) (x: x x)'
    error: stack overflow

           at «string»:1:14:
                1| (x: x x) (x: x x)
                 |              ^

    $ nix-instantiate --eval --expr '(x: x x) (x: x x)' --show-trace
    error:
           … from call site
             at «string»:1:1:
                1| (x: x x) (x: x x)
                 | ^

           … while calling anonymous lambda
             at «string»:1:2:
                1| (x: x x) (x: x x)
                 |  ^

           … from call site
             at «string»:1:5:
                1| (x: x x) (x: x x)
                 |     ^

           … while calling anonymous lambda
             at «string»:1:11:
                1| (x: x x) (x: x x)
                 |           ^

           … from call site
             at «string»:1:14:
                1| (x: x x) (x: x x)
                 |              ^

           (19997 duplicate traces omitted)

           error: stack overflow
           at «string»:1:14:
                1| (x: x x) (x: x x)
                 |              ^
2023-12-29 22:16:44 -08:00
Brian Le
e2399fc949 Change "dervation" typos to "derivation" 2023-12-26 17:12:28 -05:00
Shea Levy
c3942ef85f
Build IFD in the build store when using eval-store.
Previously, IFDs would be built within the eval store, even though one
is typically using `--eval-store` precisely to *avoid* local builds.

Because the resulting Nix expression must be copied back to the eval
store in order to be imported, this requires the eval store to trust
the build store's signatures.
2023-12-23 21:33:56 -05:00
Felix Uhl
397cf4e285 nix search: Disallow empty regex
Fixes #4739
Fixes #3553 in spirit IMO
2023-12-21 22:13:43 +01:00
Eelco Dolstra
942d635102 Fix release notes 2023-12-21 16:38:25 +01:00
Eelco Dolstra
9d9d9ff0de Merge remote-tracking branch 'origin/master' into profile-names-instead-of-index 2023-12-21 16:21:26 +01:00
Rebecca Turner
6f4930382b
Document more Makefile variables 2023-12-18 13:34:08 -08:00
John Ericson
7feabf7d44 Split --disable-tests, fix cross builds
It might seem obnoxious to have yet more configure flags, but I found
controlling both the unit and functional tests with one flag was quite
confusing because they are so different:

- unit tests depending on building, functional tests don't (e.g. when
  we test already-built Nix)

- unit tests can be installed, functional tests cannot

- unit tests neeed extra libraries (GTest, RapidCheck), functional
  tests need extra executables (jq).

- unit tests are run by `make check`, functional tests are run by `make
  installcheck`

Really on a technical level, they seem wholly independent. Only on a
human level ("they are both are tests") do they have anything in common.

I had messed up the logic in cross builds because of this. Now I
split the flag in two (and cleaned up a few other inconsistencies), and
the logic fixed itself.

Co-Authored-By: Robert Hensing <roberth@users.noreply.github.com>
2023-12-18 10:47:50 -05:00
Rebecca Turner
7f5ed330e4
Document Makefile variables in hacking.md (#9620) 2023-12-16 12:05:31 +00:00
John Ericson
228e995cde Add release not for eval-system 2023-12-14 19:55:50 -05:00
Ramses
1e3d811840
worker protocol: serialise cgroup stats in BuildResult (#9598)
By doing so, they get reported when building through the daemon via either `unix://` or `ssh-ng://`.
2023-12-13 16:37:17 -05:00
Eelco Dolstra
1b7968ed86
Merge pull request #9547 from hercules-ci/allowed-scheme-without-slash
`allowed-uris`: match whole schemes without slashes
2023-12-13 20:23:33 +01:00
tomberek
7026abfdde
Merge pull request #9523 from fricklerhandwerk/conf-reword-always-allow-substitutes
reword documentation on settings and attributes related to substitution
2023-12-12 20:09:48 -05:00
Robert Hensing
89cf53648c
Contributing branches and reverting (#9577)
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-12-11 12:26:31 +01:00
Robert Hensing
a05bc9eb92 allowed-uris: Match whole schemes also when scheme is not followed by slashes 2023-12-11 12:18:04 +01:00
Valentin Gagarin
3c200da242
document fetchTree (#9258)
* document `fetchTree`

* display experimental feature note at the top

we have to enable the new `fetchTree` experimental feature to render it
at all. this was a bug introduced when adding that new feature flag.

Co-authored-by: tomberek <tomberek@users.noreply.github.com>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: Silvan Mosberger <github@infinisil.com>
2023-12-10 05:16:32 +00:00
Robert Hensing
3811b334c6 rl-next: Use markdown frontmatter syntax
The old syntax is still supported, as long as you don't use a {
in the description - the reason to migrate.
2023-12-09 19:57:55 +01:00
Robert Hensing
c8458bd731
Merge pull request #9555 from 9999years/positions-in-errors
Pass positions when evaluating
2023-12-09 03:55:58 +01:00
Robert Hensing
b9980b377e
Update rl-next/source-positions-in-errors for Nix 2.19+ 2023-12-09 02:36:33 +01:00
Robert Hensing
9b7b7a7561 Revert "Print the value in error: cannot coerce messages (#9553)"
This reverts commit f0ac2a35d5.

The request from the sibling PR, which also applies here, was not addressed.
https://github.com/NixOS/nix/pull/9554#issuecomment-1845095735
2023-12-09 02:13:32 +01:00
Robert Hensing
005eaa1bd6 doc/prerequisites-source: Add bdwgc-traceable-allocator patch 2023-12-08 21:17:41 +01:00
Rebecca Turner
f0ac2a35d5
Print the value in error: cannot coerce messages (#9553)
* Print the value in `error: cannot coerce` messages

This extends the `error: cannot coerce a TYPE to a string` message
to print the value that could not be coerced. This helps with debugging
by making it easier to track down where the value is being produced
from, especially in errors with deep or unhelpful stack traces.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-12-08 16:36:57 +00:00
Rebecca Turner
0b80935c22
Pass positions when evaluating
This includes position information in more places, making debugging
easier.

Before:

```
$ nix-instantiate --show-trace --eval tests/functional/lang/eval-fail-using-set-as-attr-name.nix
error:
       … while evaluating an attribute name

         at «none»:0: (source not available)

       error: value is a set while a string was expected
```

After:

```
error:
       … while evaluating an attribute name

         at /pwd/lang/eval-fail-using-set-as-attr-name.nix:5:10:

            4| in
            5|   attr.${key}
             |          ^
            6|

       error: value is a set while a string was expected
```
2023-12-07 10:27:21 -08:00
Peter Kolloch
8afeaf05c4 Add docs/rl-notes for nix hash convert / builtins.convertHash
https://github.com/NixOS/nix/issues/8876
2023-12-06 23:43:42 +01:00
Eelco Dolstra
3dcb83409d
Merge pull request #9509 from fricklerhandwerk/add-redirect
add redirect to new store page
2023-12-06 18:03:53 +01:00
Robert Hensing
efc65ef122
Merge pull request #9505 from fricklerhandwerk/quick-start
shorten the quick start chapter
2023-12-05 19:52:03 +01:00
Eelco Dolstra
d54f847682
Merge pull request #9520 from fricklerhandwerk/fix-links-stores-overview
fix links in stores overview
2023-12-05 14:46:54 +01:00
Valentin Gagarin
5fe2accb75 fix up release note 2023-12-04 16:42:32 +01:00
Valentin Gagarin
51adfb9b27 reword documentation on settings and attributes related to substitution
- add links
- be more concise
- clarify the distinction between `preferLocalBuild` and `allowSubstitutes`
2023-12-02 02:56:25 +01:00
Valentin Gagarin
59c4c82aeb fix links in stores overview 2023-12-02 00:56:41 +01:00
John Ericson
91b6833686 Move tests to separate directories, and document
Today, with the tests inside a `tests` intermingled with the
corresponding library's source code, we have a few problems:

- We have to be careful that wildcards don't end up with tests being
  built as part of Nix proper, or test headers being installed as part
  of Nix proper.

- Tests in libraries but not executables is not right:

  - It means each executable runs the previous unit tests again, because
    it needs the libraries.

  - It doesn't work right on Windows, which doesn't want you to load a
    DLL just for the side global variable . It could be made to work
    with the dlopen equivalent, but that's gross!

This reorg solves these problems.

There is a remaining problem which is that sibbling headers (like
`hash.hh` the test header vs `hash.hh` the main `libnixutil` header) end
up shadowing each other. This PR doesn't solve that. That is left as
future work for a future PR.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-12-01 10:48:58 -05:00
John Ericson
ac4d2e7b85
Merge pull request #9478 from tweag/nix-config-check
Rename `nix doctor` to `nix config check`
2023-12-01 10:19:19 -05:00
Valentin Gagarin
d5e934fb73 add redirect to new store page 2023-12-01 01:54:48 +01:00
Valentin Gagarin
4781e7fa70 Document each store type on its own page
This makes for more useful manual table of contents, that displays the
information at a glance.

The `nix help-stores` command is kept as-is, even though it will show up
in the manual with the same information as these pages due to the way it
is written as a "`--help`-style" command. Deciding what to do with that
command is left for a later PR.

This change also lists all store types at the top of the respective overview page.

Co-authored-by: John Ericson <John.Ericson@Obsidian.Systems
2023-12-01 01:27:52 +01:00
Valentin Gagarin
02d9cf2d30 shorten the quick start chapter
this focuses on `nix-shell -p` and refers to search.nixos.org for
package search, which is currently the easiest and most effective way to
find program names.
2023-12-01 00:42:34 +01:00
Valentin Gagarin
0301b8fc73 reword the experimental feature notice
- put the highlight box around all the relevant instructions
- simplify the wording
- make the link more prominent by using the whole phrase for the link text
2023-11-30 23:24:53 +01:00
Valentin Gagarin
cab41025d8
mention renaming of nix doctor 2023-11-30 23:04:05 +01:00
Valentin Gagarin
d5ffc94f33 use lookup paths in helper expressions consistently
this makes the files in question a bit more independent of source location.

to find where the value is set and how it's wired up:

    rg nix=doc/manual
2023-11-30 21:53:31 +01:00
Valentin Gagarin
44d21f6ef9 keep generated documentation in a separate directory
- helps navigating the code as it highlights which files are generated
- makes it less error prone when working incrementally
  (although this should be just fixed by building out of tree)
2023-11-30 20:39:24 +01:00
John Ericson
f99e468640 Avoid <name>/<name> in documentation URLs
They are redundant and look weird.
2023-11-30 09:37:32 -05:00
Eelco Dolstra
b6a3fde6b7
Merge pull request #9465 from obsidiansystems/build-dir
Use `buildprefix` in a few more places
2023-11-30 15:28:37 +01:00
Federico Pellegrin
d536c57e87 Docs build: depend on locally built nix executable and not installed one
Previously many of the documentation targets were depending on
`$(bindir)/nix` which is the installed version. This meant that its
install rules would be triggered (which in chain would also trigger the
install of libraries, as reported in #5140). Therefore a build of the
documentation without an installation would not be possible (which apart
from doing unwanted operations it may also generate permission problems
for example).

The fix makes the rules depend on `$(nix_PATH)` instead, which is the
executable in the build tree.
2023-11-30 00:44:45 -05:00
John Ericson
52e0911302 Use buildprefix in a few more places
`installcheck` doesn't yet work, but the rest of the build can now
happen mostly inside a separate build directory.

Progress on #9342

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-11-29 19:49:07 -05:00
Théophane Hufschmitt
6d1605818c Rename nix doctor to nix config check
Fix #7672
2023-11-28 14:28:19 +01:00
Théophane Hufschmitt
f300e11b05 Rename nix show-config to nix config show
Part of #7672
2023-11-28 14:28:19 +01:00
Tom Bereknyei
f66f498bd4 notes: document change in nix-shell behavior 2023-11-27 21:22:59 -05:00
Robert Hensing
928f0c1341
Merge pull request #9393 from hercules-ci/changelog-d
Automatically compile hand-written release notes with `changelog-d`
2023-11-27 16:29:16 +01:00
Valentin Gagarin
2b7016cc56 add path based redirects
up to now, those were managed outside of this repo, which as
unsurprisingly a real hassle to deal with if one wanted to prevent URLs
from breaking when moving pages around. this change removes a large part
of the friction involved in moving content in the Nix manual.

possible next steps for further automation:
- check for content that moved and warn if it's not reachable from
  links that were valid prior to a change
- create redirect rules automatically based on this information
2023-11-27 08:33:03 +01:00
Robert Hensing
d63f72197c Don't run changelog-d in the build
This way we lose the preview of release notes on master, as well
as on https://nixos.org/manual/nix/unstable/release-notes/rl-next
but we can come back to this.
2023-11-26 21:21:55 +01:00
Jan Tojnar
f25c06d7a3 docs: Fix broken link
Link target definitions need to be in a separate paragraph to be collected.

Fixup for 217d863f7a
2023-11-26 19:32:28 +01:00
Robert Hensing
857f9168f7 Migrate rl-next.md to doc/manual/rl-next directory 2023-11-24 16:53:33 +01:00
Robert Hensing
b26038c517 doc: Rename 2X.XX to "Upcoming release", and only generate if applicable 2023-11-24 15:13:23 +01:00
Robert Hensing
b7982372d2 Compile hand-written release notes with changelog-d 2023-11-24 15:13:21 +01:00
mupdt
b32b20a6d7 release note entry for the mounted-ssh-ng:// store 2023-11-21 13:35:07 -05:00
John Ericson
87ac33f29a
Merge branch 'master' into nixenvjsondrvpath 2023-11-18 13:47:14 -05:00
Eelco Dolstra
f7d59d0dda Release notes 2023-11-17 14:21:17 +01:00
Robert Hensing
7b0e8c5c2c
Apply suggestions from code review
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-11-17 10:56:23 +01:00
Dominic Shelton
c819375769
doc: Add example of inherit in a let expression 2023-11-17 17:50:17 +11:00
John Ericson
e34c424279
Merge pull request #9357 from NixOS/nix-store-add
Add a new `nix store add` command
2023-11-15 13:49:44 -05:00
Théophane Hufschmitt
84128461b6 Add a new nix store add command
Deprecate `nix store add-file` and `nix store add-path`, and replace
them with a single `nix store add` command.
2023-11-15 19:21:17 +01:00
Silvan Mosberger
70b396649c doc: logical implication is right-associative
nix-repl> bools = [ false true ]

    nix-repl> combinations = builtins.concatMap (a: builtins.concatMap (b: map (c: { inherit a b c; }) bools) bools) bools

    nix-repl> builtins.all ({ a, b, c }: (a -> b -> c) == (a -> (b -> c))) combinations
    true

    nix-repl> builtins.all ({ a, b, c }: (a -> b -> c) == ((a -> b) -> c)) combinations
    false
2023-11-15 07:04:09 +01:00
John Ericson
9afa697ab6 Refactor bash test build system a bit
The basic idea here is to separate a few intertwined notions:

1. Not all "run bash tests" are "install tests"

2. Not all "run bash tests" use `tests/functional/init.sh`, or any
   pre-test initialization at all.

This will used in the next commit when we have a test that check unit
test golden master data.

Also, move our custom `PS4` from the test to the test runner, as it is
part of how we want to display the tests, not the test themselves.

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-11-10 11:02:37 -05:00
Artturin
a903f85f84 nix-env --query: fix --json ignoring --drv-path
```json
{
  "AMB-plugins": {
    "drvPath": "/nix/store/l99cb7h2hy8dg005arsjbd9kx0w05d3h-AMB-plugins-0.8.1.drv",
    "name": "AMB-plugins-0.8.1",
    "outputName": "out",
    "outputs": {
      "out": null
    },
    "pname": "AMB-plugins",
    "system": "x86_64-linux",
    "version": "0.8.1"
  },
  "ArchiSteamFarm": {
    "drvPath": "/nix/store/nhplgyjj34fz6hjmnyih25gxscfh8s7b-ArchiSteamFarm-5.4.12.5.drv",
    "name": "ArchiSteamFarm-5.4.12.5",
    "outputName": "out",
    "outputs": {
      "out": null
    },
    "pname": "ArchiSteamFarm",
    "system": "x86_64-linux",
    "version": "5.4.12.5"
  },
...
```
2023-11-09 22:31:32 +02:00
Robert Hensing
12953b942c
Fixup docs 2023-11-09 07:08:56 +01:00
John Ericson
f0adb72c23 Mark fetchTree as unstable again
As discussed in our last meeting, we need a bit more time, but we are
"time boxing" the work left to do to ensure there is not unbounded
delay.

Rather than putting it back underneath `flakes`, though, put it
underneath its own `fetch-tree` experimental feature (which `flakes`
includes/implies). This signals our commitment to the plan to stabilize
it first without waiting to go through the rest of Flakes, and also will
give users a "release candidate" when we get closer to stabilization.

This reverts commit 4112dd1fc9.
2023-11-08 23:23:56 -05:00
Felix Uhl
c0c7c4b6cd Link to shebang interpreter docs from release notes 2023-11-07 22:11:48 +01:00
Robert Hensing
e91fd837ee Move shebang docs from rl-next to nix.md 2023-11-07 13:24:01 -05:00
Robert Hensing
466271568b nix: Parse --file relative to shebang script 2023-11-07 13:24:01 -05:00
Robert Hensing
198bc22e3b nix: Add command baseDir to parse --expr relative to shebang script 2023-11-07 13:24:01 -05:00
Robert Hensing
20ff61ab25 nix: Reserve shebang line syntax and only parse double backtick quotes
Being restrictive about syntax leaves opportunity to improve the
syntax and functionality later.
2023-11-07 13:24:01 -05:00
Tom Bereknyei
bfcbf3b5bf doc: shebang release notes, docs, tests
fix: release notes
2023-11-07 13:24:01 -05:00
Felix Uhl
c60eba3276 Add release note on XDG_DATA_DIRS change
Follow-up to https://github.com/NixOS/nix/pull/8985
2023-11-06 23:00:00 +01:00
Felix Uhl
257b768436 Enable using human-readable name in nix profile 2023-11-06 21:21:20 +01:00
John Ericson
cc46ea1630 Make nix path-info --json return an object not array
Before it returned a list of JSON objects with store object information,
including the path in each object. Now, it maps the paths to JSON
objects with the metadata sans path.

This matches how `nix derivation show` works.

Quite hillariously, none of our existing functional tests caught this
change to `path-info --json` though they did use it. So just new
functional tests need to be added.
2023-11-06 11:06:31 -05:00
BootRhetoric
098f0615c9
fetchGit and flake: add publicKeys list input
This adds publicKeys as an optional fetcher input attribute to flakes
and builtins.fetchGit to provide a nix interface for the json-encoded
`publicKeys` attribute of the git fetcher.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-11-03 20:23:31 +01:00
John Ericson
1e61c007be
Merge pull request #9234 from fricklerhandwerk/doc-style-examples
styleguide: add note on highlighting examples and syntax definitions
2023-11-02 09:49:38 -04:00
Valentin Gagarin
d7b7a79f3e document store paths
update the glossary to point to the new page.

since this is a cross-cutting concern, it warrants its own section in
the manual.

Co-authored-by: John Ericson <git@JohnEricson.me>
2023-11-02 06:01:51 +01:00
Valentin Gagarin
4ba8b182be document store objects in terms of their constituent parts
this also rephrases the introductory sentence to be more general, in order to
avoid the same word being repeated in short succession.
2023-11-02 06:01:30 +01:00
John Ericson
12f9719162
Merge pull request #9250 from fricklerhandwerk/fix-anchors
fix anchor in conf-file
2023-11-01 21:30:22 -04:00
John Ericson
6132ffd825
Merge pull request #9266 from hercules-ci/doc-hacking-clangd-fix-tests
doc/hacking: Fix clangd for tests
2023-11-01 09:38:43 -04:00
Robert Hensing
bc4a1695ac doc/hacking: Fix clangd for tests 2023-11-01 11:44:16 +01:00
Felix Uhl
c7dcdb8325 Overhaul nix flake update and lock commands
Closes #5110
2023-10-31 15:33:57 +01:00
Valentin Gagarin
325db01d26 fix anchor in conf-file
I inadvertently switched it to `opt-` when refactoring, but it should
have been `conf` to begin with.
2023-10-27 07:30:24 +02:00
Valentin Gagarin
00c90eae95 add note on highlighting examples and syntax definitions 2023-10-25 12:04:03 +02:00
Valentin Gagarin
78278f2b3f add notes on comments in code samples 2023-10-25 12:00:56 +02:00
Valentin Gagarin
8d9e0b7aed
document the store concept (#9206)
* document the store concept and its purpose

reword the glossary to link to more existing information instead of
repeating it.

move the store documentation to the top of the table of contents, in
front of the Nix language. this will provide a natural place to
document other aspects of the store as well as the various store types.

move the package management section after the Nix language and before
Advanced Topics to follow the pattern to layer more complex concepts on
top of each other.

this structure of the manual will also nudge beginners to learn Nix
bottom-up and hopefully make more likely that they understand underlying
concepts first before delving into complex use cases that may or may not
be easy to implement with what's currently there.

[John adds this note] The sort of beginner who likes to dive straight into reference documentation should prefer this approach. Conversely, the sort of beginner who would prefer the opposite top-down approach of trying to solve problems before they understand everything that is going on is better off reading other tutorial/guide material anyways, and will just "random-access" the reference manual as a last resort. For such random-access the order doesn't matter, so this restructure doesn't make them any worse off.

Co-authored-by: John Ericson <git@JohnEricson.me>
2023-10-25 02:28:35 +00:00
Vignesh
abb1c829c8
Release notes updated for #9150 reverted (#9227) 2023-10-24 11:18:00 +02:00
Valentin Gagarin
cd680bd53d
Merge how-to section on S3 buckets into S3 store docs (#7972)
Rather than having a misc tutorial page in the grab-bag "package management" section, this information should just be part of the S3 store docs.

---------

Co-authored-by: John Ericson <John.Ericson@Obsidian.Systems>
2023-10-23 13:22:33 -04:00
Naïm Favier
fa9642ec45 nix-shell: support single quotes in shebangs
Single quotes are a basic feature of shell syntax that people expect to
work. They are also more convenient for writing literal code expressions
with less escaping.
2023-10-23 15:56:05 +02:00
Eelco Dolstra
955bbe53c5
Merge pull request #9177 from edolstra/input-accessors
Backport FSInputAccessor and MemoryInputAccessor from lazy-trees
2023-10-23 11:42:04 +02:00
Valentin Gagarin
256dfb98e8
remove Basic Package Management section (#7974)
this is the first thing most beginners see, and it misleads them into
assuming `nix-env` is appropriate for doing anything but setting and
reverting profile generations.

this chapter is the root of most evil around the ecosystem, and today we
finally close it for good.
2023-10-23 04:05:02 +02:00
Valentin Gagarin
97a0c08873
Expand derivation examples (#9048)
Also use fancier formatting so the example blocks are easier to discern
from the description.

Co-authored-by: John Ericson <git@JohnEricson.me>
2023-10-20 15:17:28 -04:00
Arthur Gautier
85e5ac403f
docker: publish images to ghcr.io (#8066)
* docker: publish images to ghcr.io

docker.com announced their intention to remove the free plan used by
OSS. The nixos/nix image is essential to various CI runs to build with
nix. To provide a continuity plan, this commit pushes the image to
ghcr.io as well.

Co-authored-by: Sandro <sandro.jaeckel@gmail.com>
2023-10-20 19:28:26 +02:00
John Ericson
8a28ed2e8b
Merge pull request #9187 from hercules-ci/issue-7619-apple-virt-system-feature
libstore: Add `apple-virt` to system features when available
2023-10-20 09:09:20 -04:00
Robert Hensing
9277eb276b libstore: Add apple-virt to system features when available
I'm sure that we'll adjust the implementation over time, but this
at least discerns between an apple silicon bare metal machine and
a tart VM.
2023-10-20 10:21:39 +02:00
Johannes Kirschbauer
e58566a057
doc: add reference to hasAttr in ? operator (#9185)
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-10-20 03:11:03 +00:00
Johannes Kirschbauer
42f26eb42e
doc: complexity for '?' operator (#9184)
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-10-20 02:45:47 +02:00
Eelco Dolstra
d2c0051784 Remove obsolete corepkgs references 2023-10-18 23:35:07 +02:00
Yueh-Shun Li
5088e6563a primops: add builtins.convertHash
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-10-19 00:58:56 +08:00
Eelco Dolstra
df73c6eb8c Introduce MemoryInputAccessor and use it for corepkgs
MemoryInputAccessor is an in-memory virtual filesystem that returns
files like <nix/fetchurl.nix>. This removes the need for special hacks
to handle those files.
2023-10-18 17:38:11 +02:00
Eelco Dolstra
201c115c3e
Merge pull request #9151 from edolstra/stabilize-fetchTree
Stabilize fetchTree
2023-10-18 10:54:08 +02:00
John Ericson
9d1f42db52
Merge pull request #9150 from vicky1999/fix/8914
`nix store ping` -> `nix store info`
2023-10-17 22:52:28 -04:00
vicky1999
891dfb4359 updated store ping to store info in files 2023-10-18 00:14:11 +05:30
Eelco Dolstra
4112dd1fc9 Mark fetchTree as stable 2023-10-13 16:45:08 +02:00
Robert Hensing
da2b59a088
Merge pull request #8047 from lovesegfault/always-allow-substitutes
feat: add always-allow-substitutes
2023-10-13 15:42:11 +02:00
Ninlives
94e91566ed
Allow CLI to pass environment variables to FOD builder (#8830)
Add a new experimental `impure-env` setting that is a key-value list of
environment variables to inject into FOD derivations that specify the
corresponding `impureEnvVars`.

This allows clients to make use of this feature (without having to change the
environment of the daemon itself) and might eventually deprecate the current
behaviour (pick whatever is in the environment of the daemon) as it's more
principled and might prevent information leakage.
2023-10-11 11:58:42 +00:00
Valentin Gagarin
1e1f08c045 annotate admonitions showing syntax
also fix typos
2023-10-10 00:45:19 +02:00
John Ericson
be81764320 Factor out bits of the worker protocol to use elsewhere
This introduces some shared infrastructure for our notion of protocols.
We can then define multiple protocols in terms of that notion.
We an also express how particular protocols depend on each other.

For example, we can define a common protocol and a worker protocol,
where the second depends on the first in terms of the data types it can
read and write.

The "serve" protocol can just use the common one for now, but will
eventually need its own machinary just like the worker protocol for
version-aware serialisers
2023-10-09 16:55:12 -04:00
John Ericson
2f0b508c29 Get rid of bootstrap.sh
For people working on Nix with `nix develop`, it's better to just use
`autoreconfPhase` and `configurePhase`, which is standard Nixpkgs / nix
shell make from Nixpkgs practice --- it is good to emphasize the degree
to which Nix is *just* a regular C++ project which can be worked on in
the regular way.

(For people running `nix-shell`, the story is similar, except
`configurePhase` would use non-writable store paths, which matters for
hte times we use output paths before `make install`, so I kept the
existing `./configure ...` instruction.)

For people building Nix without Nix (e.g. packaging it for another
distro) they also don't need `bootstrap.sh`, and can just run
`autoreconf -vfi` directly. (More likely, they have their own idioms to
do this just as we have `autoreconfPhase`.)
2023-10-09 12:55:58 -04:00
John Ericson
22513c91dc
Merge pull request #8942 from fricklerhandwerk/option-anchors
always show anchors on setting listings
2023-10-09 11:29:36 -04:00
John Ericson
838be5e4a0
Merge pull request #9114 from fricklerhandwerk/lookup-path
introduce lookup paths as a distinct language construct
2023-10-09 11:28:40 -04:00
John Ericson
ead65d3d8e
Merge pull request #9110 from fricklerhandwerk/interpolated-expression
expand on interpolated expressions
2023-10-09 10:56:19 -04:00
Eelco Dolstra
c8eb3b82e9
Merge pull request #9129 from fricklerhandwerk/ae-be
AE -> BE; fix redirects
2023-10-09 16:56:07 +02:00
John Ericson
217d863f7a Merge branch 'master' into lookup-path 2023-10-09 10:54:54 -04:00
John Ericson
67eddc05ef
Merge pull request #9116 from fricklerhandwerk/doc-import
reword and reformat description of `builtins.import`
2023-10-09 10:26:41 -04:00
John Ericson
81d3a8542a
doc: Slight reword of "interpolated expression" in paragraph
I was sleepy and confused that "interpolated expression" was a new type of thing at first. This nudges the reader to understand that its just a regular expression, and these conditions are imposed by the interpolation operation.
2023-10-09 10:21:18 -04:00
Valentin Gagarin
0246de1896 remove unnecessary indentation from markdown list
this makes it a bit easier to work with, as some tooling doesn't work
well with too much indentation.
2023-10-09 10:14:29 +02:00
Valentin Gagarin
896a905202 AE -> BE; fix redirects 2023-10-09 10:07:46 +02:00
Valentin Gagarin
f00a5eb11b introduce lookup paths as a distinct language construct
so far they did not really have a name, and were at best referred to as
"angle bracket syntax".
2023-10-07 04:44:09 +02:00
Valentin Gagarin
a7ba8c3f4a complete example on attribute name interpolation 2023-10-07 02:49:55 +02:00
Valentin Gagarin
a67cee965a expand on interpolated expressions 2023-10-07 02:49:55 +02:00
Valentin Gagarin
517c547dec remove duplicate redirects entry 2023-10-06 23:34:08 +02:00
John Ericson
68c81c7375 Put functional tests in tests/functional
I think it is bad for these reasons when `tests/` contains a mix of
functional and integration tests

 - Concepts is harder to understand, the documentation makes a good
   unit vs functional vs integration distinction, but when the
   integration tests are just two subdirs within `tests/` this is not
   clear.

 - Source filtering in the `flake.nix` is more complex. We need to
   filter out some of the dirs from `tests/`, rather than simply pick
   the dirs we want and take all of them. This is a good sign the
   structure of what we are trying to do is not matching the structure
   of the files.

With this change we have a clean:
```shell-session
$ git show 'HEAD:tests'
tree HEAD:tests

functional/
installer/
nixos/
```
2023-10-06 09:05:56 -04:00
Valentin Gagarin
369b076986 add links and anchors 2023-10-06 11:46:41 +02:00
Valentin Gagarin
d12fb4b1f1
Merge pull request #9017 from fricklerhandwerk/contributing-docs
add contributing guide for documentation
2023-10-05 09:23:27 +02:00
Valentin Gagarin
e0e47c0a68 accommodate inconsistent output from lowdown
the `term` output mode leaves inline HTML around verbatim, while `nroff`
mode (used for `man` pages) does not.

the correct solution would be to pre-render all output with a more
benign tool so we have less liabilities in our own code, but this has to
do for now.
2023-10-05 01:20:26 +02:00
Valentin Gagarin
64b73476ce always show anchors on setting listings
refactor the templates for readability
2023-10-05 00:05:08 +02:00
Maximilian Bosch
42e3c6d658 doc: reference NIX_ATTRS_*_FILE vars at the env var reference for drvs 2023-10-01 13:25:29 +01:00
Maximilian Bosch
bfdd908f7d structured attrs: improve support / usage of NIX_ATTRS_{SH,JSON}_FILE
In #4770 I implemented proper `nix-shell(1)` support for derivations
using `__structuredAttrs = true;`. Back then we decided to introduce two
new environment variables, `NIX_ATTRS_SH_FILE` for `.attrs.sh` and
`NIX_ATTRS_JSON_FILE` for `.attrs.json`. This was to avoid having to
copy these files to `$NIX_BUILD_TOP` in a `nix-shell(1)` session which
effectively meant copying these files to the project dir without
cleaning up afterwords[1].

On last NixCon I resumed hacking on `__structuredAttrs = true;` by
default for `nixpkgs` with a few other folks and getting back to it,
I identified a few problems with the how it's used in `nixpkgs`:

* A lot of builders in `nixpkgs` don't care about the env vars and
  assume that `.attrs.sh` and `.attrs.json` are in `$NIX_BUILD_TOP`.
  The sole reason why this works is that `nix-shell(1)` sources
  the contents of `.attrs.sh` and then sources `$stdenv/setup` if it
  exists. This may not be pretty, but it mostly works. One notable
  difference when using nixpkgs' stdenv as of now is however that
  `$__structuredAttrs` is set to `1` on regular builds, but set to
  an empty string in a shell session.

  Also, `.attrs.json` cannot be used in shell sessions because
  it can only be accessed by `$NIX_ATTRS_JSON_FILE` and not by
  `$NIX_BUILD_TOP/.attrs.json`.

  I considered changing Nix to be compatible with what nixpkgs
  effectively does, but then we'd have to either move $NIX_BUILD_TOP for
  shell sessions to a temporary location (and thus breaking a lot of
  assumptions) or we'd reintroduce all the problems we solved back then
  by using these two env vars.

  This is partly because I didn't document these variables back
  then (mea culpa), so I decided to drop all mentions of
  `.attrs.{json,sh}` in the  manual and only refer to `$NIX_ATTRS_SH_FILE`
  and `$NIX_ATTRS_JSON_FILE`. The same applies to all our integration tests.
  Theoretically we could deprecated using `"$NIX_BUILD_TOP"/.attrs.sh` in
  the future now.

* `nix develop` and `nix print-dev-env` don't support this environment
  variable at all even though they're supposed to be part of the replacement
  for `nix-shell` - for the drv debugging part to be precise.

  This isn't a big deal for the vast majority of derivations, i.e.
  derivations relying on nixpkgs' `stdenv` wiring things together
  properly. This is because `nix develop` effectively "clones" the
  derivation and replaces the builder with a script that dumps all of
  the environment, shell variables, functions etc, so the state of
  structured attrs being "sourced" is transmitted into the dev shell and
  most of the time you don't need to worry about `.attrs.sh` not
  existing because the shell is correctly configured and the

      if [ -e .attrs.sh ]; then source .attrs.sh; fi

  is simply omitted.

  However, this will break when having a derivation that reads e.g. from
  `.attrs.json` like

      with import <nixpkgs> {};
      runCommand "foo" { __structuredAttrs = true; foo.bar = 23; } ''
        cat $NIX_ATTRS_JSON_FILE # doesn't work because it points to /build/.attrs.json
      ''

  To work around this I employed a similar approach as it exists for
  `nix-shell`: the `NIX_ATTRS_{JSON,SH}_FILE` vars are replaced with
  temporary locations.

  The contents of `.attrs.sh` and `.attrs.json` are now written into the
  JSON by `get-env.sh`, the builder that `nix develop` injects into the
  derivation it's debugging. So finally the exact file contents are
  present and exported by `nix develop`.

  I also made `.attrs.json` a JSON string in the JSON printed by
  `get-env.sh` on purpose because then it's not necessary to serialize
  the object structure again. `nix develop` only needs the JSON
  as string because it's only written into the temporary file.

  I'm not entirely sure if it makes sense to also use a temporary
  location for `nix print-dev-env` (rather than just skipping the
  rewrite in there), but this would probably break certain cases where
  it's relied upon `$NIX_ATTRS_SH_FILE` to exist (prime example are the
  `nix print-dev-env` test-cases I wrote in this patch using
  `tests/shell.nix`, these would fail because the env var exists, but it
  cannot read from it).

[1] https://github.com/NixOS/nix/pull/4770#issuecomment-836799719
2023-10-01 13:22:48 +01:00
Théophane Hufschmitt
784c7df5bf
Merge pull request #9004 from fricklerhandwerk/release-support
add information on release cycle and backports
2023-09-29 15:04:00 +02:00
Théophane Hufschmitt
a66bd8f1f2
Merge pull request #9065 from fricklerhandwerk/testing-hints
add hint for troubleshooting tests
2023-09-29 13:52:54 +02:00
Valentin Gagarin
1dd03c62ad add hint for troubleshooting tests 2023-09-29 10:46:42 +02:00
tomberek
976f596579
Merge branch 'master' into tomberek.absolute.attrpath.notation 2023-09-28 10:01:57 -04:00
Ilan Joselevich
13ed5d7106 flakes: adopt repl-flake behavior as default 2023-09-27 20:47:10 -04:00
Robert Hensing
ea2fa8b6f3
Merge pull request #8241 from Luabee/patch-1
Mention `$DRV_PATH` in post-build-hook docs
2023-09-28 00:11:00 +01:00
Robert Hensing
dafa38213b
Update doc/manual/src/advanced-topics/post-build-hook.md
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-09-27 23:10:39 +01:00
Théophane Hufschmitt
c6faef61a6
Merge pull request #8923 from obsidiansystems/test-proto
Unit test some worker protocol serializers
2023-09-26 17:12:24 +02:00
Eelco Dolstra
706b91ef62
Merge pull request #9044 from fricklerhandwerk/doc-realise
realisation: reformat for readability
2023-09-26 15:28:20 +02:00
Valentin Gagarin
a757749fcf reword for readability 2023-09-26 06:28:17 +02:00
Valentin Gagarin
9428d7dcd1
Merge pull request #9045 from fricklerhandwerk/fix-redirects
fix broken redirects script
2023-09-26 04:27:33 +02:00
Valentin Gagarin
503b02d3f8
Merge pull request #9046 from fricklerhandwerk/fixup-derivation
fix broken reference link
2023-09-26 04:27:23 +02:00
Valentin Gagarin
60a155d01c
Merge pull request #8706 from fricklerhandwerk/doc-system-features
document system features
2023-09-26 04:21:31 +02:00
Valentin Gagarin
b17f200b11
Document "Import From Derivation" (#7332)
* document "Import From Derivation"

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: John Ericson <git@JohnEricson.me>
2023-09-26 01:49:03 +00:00
Valentin Gagarin
c6f8247032 fix broken reference link 2023-09-26 03:10:12 +02:00
Théophane Hufschmitt
9a78d87bc0
Merge pull request #6614 from RasmusRendal/spaces
Implement support for percent encoded filepaths for flakerefs
2023-09-26 02:27:09 +02:00
Valentin Gagarin
45de35bcf1 fix broken redirects script 2023-09-26 01:24:07 +02:00
Valentin Gagarin
887cbcd395 add contributing guide for documentation 2023-09-26 01:06:47 +02:00
Valentin Gagarin
5b0336b3b1 reword example for clarity 2023-09-26 00:58:50 +02:00
Valentin Gagarin
7de66f19f8 example: headers -> dev
make the example more realistic, since `headers` is not an output name
used in Nixpkgs

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-09-26 00:46:27 +02:00
Valentin Gagarin
75a231147f be more precise about system semantics 2023-09-26 00:45:00 +02:00
Valentin Gagarin
5e4734a08b reword to avoid saying "build"
derivations are about data transformation, so the term "build" does not
add any information. there was also some feedback that "build task" is
not more helpful than "derivation" if you have no prior experience with
Nix or build systems, while existing associations may be misleading.
2023-09-26 00:45:00 +02:00
Valentin Gagarin
17884f54d1 clarification on extra attributes
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-09-26 00:45:00 +02:00
Valentin Gagarin
026c24e378 add example for store path using the given name 2023-09-26 00:45:00 +02:00
Valentin Gagarin
d621dd17f2 more precise wording
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-09-26 00:45:00 +02:00
Valentin Gagarin
e2f118efed restructure and reword input attributes section on derivation 2023-09-26 00:43:58 +02:00
Valentin Gagarin
541890463d make separate section for builder execution 2023-09-26 00:43:58 +02:00
Valentin Gagarin
cba53b3a18 reformat for readability 2023-09-26 00:42:23 +02:00
John Ericson
728767db03
Merge pull request #9028 from Ericson2314/nix3-config-options
Misc options rendering adjustments
2023-09-25 09:04:56 -04:00
John Ericson
4606a07bb6
generate-manpage.nix: Add comment explaining one bit 2023-09-25 08:20:39 -04:00
Maximilian Bosch
89e5e68799
doc/hacking: fix make target to build the docs (#9033)
Was confused why `make html` didn't work while working on #9032, but
then I realized that after this section was written, the target was
renamed to `manual-html` in 6910f5dcb6.
2023-09-24 20:28:34 +02:00
John Ericson
9f93972c4d manual / manpages: Make option category names a proper subheader
Before they were an "ad-hoc" header with bold and a colon; now they are
a proper subheader.

For the man pages, this doesn't make much of a difference, but it will
help more on for the HTML manual, where things can be restyled. Again,
good separation of content vs presentation.
2023-09-23 00:37:44 -04:00
John Ericson
1d9fd3a6f8 manual / manpages: Adjust option filter filtering, move from C++ to Nix
Behavior change:

Before we only showed uption if the command-specific options were
non-empty. But that is somewhat odd since we also show common options.
Now, we do everything based on the union of both sorts of options (with
hidden-categories filtered, as before).

Implementation change:

The JSON dumping once again includes all options; the filtering of
hidden categories is done in the Nix instead. This is better separation
of "content" vs "presentation", and prepare the way for the HTML manual
vs manpages / `--help` doing different things.
2023-09-23 00:34:51 -04:00
John Ericson
9c640c1229 doc: showOptions: Simplify code with builtins.groupBy
This makes grouping options by category much nicer. No behavior should
be changed.
2023-09-23 00:28:16 -04:00
John Ericson
694810ba34 doc: showOptions: Move union to caller
`showOptions` itself doesn't care, so it shouldn't take two separate
arguments.
2023-09-22 23:54:04 -04:00
Théophane Hufschmitt
f89b84919c
Merge pull request #8931 from fricklerhandwerk/nix3-config-options
do not show configuration override flags for each command
2023-09-22 14:13:51 +02:00
Rasmus Rendal
3411507696 Document the percent-encoding mechanism 2023-09-22 10:07:14 +02:00
Valentin Gagarin
1b560ea502
more detail on backports
Co-authored-by: John Ericson <git@JohnEricson.me>
2023-09-21 23:23:14 +02:00
John Ericson
6b6cfec8a5
Merge pull request #8990 from fricklerhandwerk/example-nix-env-install-outputs
add clarifying example to `nix-env` output selection
2023-09-21 12:27:35 -04:00
John Ericson
0273ad73fa
Merge pull request #9012 from fricklerhandwerk/fix-multiline-doc
fix rendering error for consecutive spaces
2023-09-21 11:57:39 -04:00
John Ericson
7bafcdba79
Merge pull request #9013 from fricklerhandwerk/test-coverage-docs
Move test coverage section to testing page
2023-09-21 11:50:04 -04:00
Valentin Gagarin
cf6ba7256f delete unused files 2023-09-21 02:57:00 +02:00
Valentin Gagarin
02649d247b move test coverage section to testing page 2023-09-21 02:52:28 +02:00
Valentin Gagarin
954890a42f add information on release cycle and backports 2023-09-21 02:52:05 +02:00
Valentin Gagarin
747b2baf21 fix rendering error for consecutive spaces 2023-09-21 02:51:54 +02:00
Eelco Dolstra
10ad052f7d Release notes 2023-09-20 11:42:49 +02:00
Valentin Gagarin
408055a9dd add clarifying example to nix-env output selection
there is a very confusing warning in the Nixpkgs manual that
mischaracterises `nix-env` behavior, and this example shows what's
really happening.

note that it doesn't use `pkgs.runCommand` or other `pkgs.stdenv`
facilities, as deep down those set `meta.outputsToInstall` to very
particular defaults that do not generally apply to Nix.
2023-09-18 20:11:42 +02:00
Emil Nikolov
2cdc9c32e7
docs: fixed the default priority of nix-env --install (#8945) 2023-09-09 06:54:39 +00:00
John Ericson
7ad66cb3ef Allow dynamic derivation deps in inputDrvs
We use the same nested map representation we used for goals, again in
order to save space. We might someday want to combine with `inputDrvs`,
by doing `V = bool` instead of `V = std::set<OutputName>`, but we are
not doing that yet for sake of a smaller diff.

The ATerm format for Derivations also needs to be extended, in addition
to the in-memory format. To accomodate this, we added a new basic
versioning scheme, so old versions of Nix will get nice errors. (And
going forward, if the ATerm format changes again the errors will be even
better.)

`parsedStrings`, an internal function used as part of parsing
derivations in A-Term format, used to consume the final `]` but expect
the initial `[` to already be consumed. This made for what looked like
unbalanced brackets at callsites, which was confusing. Now it consumes
both which is hopefully less confusing.

As part of testing, we also created a unit test for the A-Term format for
regular non-experimental derivations too.

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>

Apply suggestions from code review

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-09-07 10:39:37 -04:00
Valentin Gagarin
aa46f536e8 add note on overriding settings for stable commands 2023-09-07 02:02:27 +02:00
Valentin Gagarin
09eb7f1ef6 do not show configuration override flags for each command
this removes a lot of noise from the web search, which precludes finding
the actual documentation.

some configuration settings have enough documentation to warrant
individual pages, so the alternative of including full setting
documentation in each command page doesn't make much sense here.

this change technically means that the command line flags to override
settings are "invisible", and not exported as JSON. this may or may not
be desirable. a more explicit approach would be adding a `hidden` field
to the flag's JSON output, but would also require adjusting
post-processing of that JSON for manual rendering.
2023-09-07 02:02:27 +02:00
Valentin Gagarin
b0fe7f560d add missing link 2023-09-07 01:38:53 +02:00
Valentin Gagarin
589fd897fb add todo on store docs 2023-09-07 01:38:53 +02:00
John Ericson
3a62651bd6
Merge pull request #8933 from fricklerhandwerk/option-anchors
Add anchors to option listings
2023-09-06 09:39:33 -04:00
John Ericson
216c66ddcf
Merge pull request #8932 from fricklerhandwerk/formatting
dedent common options listing; one sentence per line
2023-09-06 09:30:25 -04:00
John Ericson
754528241a
Merge pull request #8927 from obsidiansystems/test-derivation-aterm
Test and begin documentation of the ATerm format for derivations
2023-09-06 09:24:52 -04:00
John Ericson
d568877eab
Retitle section as Robert suggests
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-09-06 08:43:16 -04:00
Valentin Gagarin
391f18063c add anchors to option listings 2023-09-06 09:52:56 +02:00
Valentin Gagarin
02c2679f0e dedent common options listing; one sentence per line
this is a pure reformatting, contents were not changed

one sentence per line makes reviewing diffs and making suggestions much
more convenient. the indentation was an artifat of the DocBook
migration.
2023-09-06 09:49:00 +02:00
Valentin Gagarin
5c23d3a90c disambiguate output from output path 2023-09-06 09:09:02 +02:00
John Ericson
880d9cabed Test and begin documentation of the ATerm format for derivations
Wanted to do this before the last dynamic derivations PR when I
introduce a variation, to make sure I wasn't changing the old version by
mistake.
2023-09-05 11:16:39 -04:00
John Ericson
7ff43435f9 Unit test some worker protocol serializers
Continue with the characterization testing idioms begun in
c70484454f, but this time for unit tests.

Co-authored-by: Andreas Rammhold <andreas@rammhold.de>
2023-09-05 10:48:02 -04:00
Valentin Gagarin
f34484d18a
Merge pull request #7592 from fricklerhandwerk/nix-store-realise
reword description of how realisation works
2023-09-05 11:55:01 +02:00
Eelco Dolstra
919781cacc
Merge branch 'master' into valid_deriver_2 2023-09-01 13:35:05 +02:00
Valentin Gagarin
1ac181759d revert some random change 2023-08-31 21:27:13 +02:00
Valentin Gagarin
d38a539437 make description open-ended, add TODO
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-31 21:27:11 +02:00
Valentin Gagarin
894cbe43bc don't invent terms yet 2023-08-31 21:26:46 +02:00
Valentin Gagarin
b951e862d0 more meaningful tagline 2023-08-31 21:26:46 +02:00
Valentin Gagarin
cf4e14d58d accommodate "do nothing" branch 2023-08-31 21:26:46 +02:00
Valentin Gagarin
d460dbdd30 be more precise about substituting store derivations
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-31 21:26:46 +02:00
Valentin Gagarin
6b3320ab05 mention remote builders
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-31 21:26:44 +02:00
Valentin Gagarin
0cd8f36644 add anchor to builder 2023-08-31 21:26:15 +02:00
Valentin Gagarin
d50f116421 add reference link 2023-08-31 21:25:39 +02:00
Valentin Gagarin
b7e9e29605 remove abstract description 2023-08-31 21:25:39 +02:00
Valentin Gagarin
a57e0e8c5c reword introductory sentence 2023-08-31 21:25:39 +02:00
Valentin Gagarin
315a11bcc9 remove superfluous word 2023-08-31 21:25:39 +02:00
Valentin Gagarin
1bc9257d7c reword description of how realisation works 2023-08-31 21:25:39 +02:00
Cole Helbling
46478b44ff
docs/testing: point out the existence of GTEST_FILTER (#8883) 2023-08-29 22:13:35 +00:00
Eelco Dolstra
5b5f56a9d4
Merge pull request #8859 from edolstra/tarball-last-modified
Tarball trees: Propagate lastModified
2023-08-29 17:02:06 +02:00
Eelco Dolstra
56763ff918 Document that redirected tarball flakerefs can specify lastModified 2023-08-29 16:08:29 +02:00
Silvan Mosberger
151120a1ae
Document nix-prefetch-url defaults (#8878) 2023-08-28 22:14:01 +02:00
Valentin Gagarin
880fef9cdf do not change existing release notes 2023-08-28 20:52:30 +02:00
tomberek
b563ef38cc
Merge pull request #8819 from VertexA115/fix/deep-follow-paths
Fix follow path checking at depths greater than 2
2023-08-25 10:33:05 -04:00
Guillaume Girol
925a444b92 add nix-store --query --valid-derivers command
notably useful when nix-store --query --deriver returns a non-existing
path.

Co-authored-by: Felix Uhl <iFreilicht@users.noreply.github.com>
2023-08-24 11:37:24 +02:00
Valentin Gagarin
d5b130ef13 glossary: dedent list and do not use forced line breaks
this makes it slightly easier to work with and consistent with all the
other markdown lists in use
2023-08-24 10:00:17 +02:00
Uri Zafrir
4a435ad228
Add introductory sentence to advanced topics (#8861) 2023-08-23 15:18:25 +00:00
Tom Bereknyei
c609be4072 doc: explain the . attrPath prefix notation 2023-08-19 17:19:52 -04:00
Alex Zero
37a509ca2d Add release notes for the previous commit 2023-08-14 18:56:02 +01:00
John Ericson
44c8d83831 Create outputOf primop.
In the Nix language, given a drv path, we should be able to construct
another string referencing to one of its output. We can do this today
with `(import drvPath).output`, but this only works for derivations we
already have.

With dynamic derivations, however, that doesn't work well because the
`drvPath` isn't yet built: importing it like would need to trigger IFD,
when the whole point of this feature is to do "dynamic build graph"
without IFD!

Instead, what we want to do is create a placeholder value with the right
string context to refer to the output of the as-yet unbuilt derivation.
A new primop in the language, analogous to `builtins.placeholder` can be
used to create one. This will achieve all the right properties. The
placeholder machinery also will match out the `outPath` attribute for CA
derivations works.

In 60b7121d2c we added that type of
placeholder, and the derived path and string holder changes necessary to
support it. Then in the previous commit we cleaned up the code
(inspiration finally hit me!) to deduplicate the code and expose exactly
what we need. Now, we can wire up the primop trivally!

Part of RFC 92: dynamic derivations (tracking issue #6316)

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-14 09:37:37 -04:00
John Ericson
60b7121d2c Make the Derived Path family of types inductive for dynamic derivations
We want to be able to write down `foo.drv^bar.drv^baz`:
`foo.drv^bar.drv` is the dynamic derivation (since it is itself a
derivation output, `bar.drv` from `foo.drv`).

To that end, we create `Single{Derivation,BuiltPath}` types, that are
very similar except instead of having multiple outputs (in a set or
map), they have a single one. This is for everything to the left of the
rightmost `^`.

`NixStringContextElem` has an analogous change, and now can reuse
`SingleDerivedPath` at the top level. In fact, if we ever get rid of
`DrvDeep`, `NixStringContextElem` could be replaced with
`SingleDerivedPath` entirely!

Important note: some JSON formats have changed.

We already can *produce* dynamic derivations, but we can't refer to them
directly. Today, we can merely express building or example at the top
imperatively over time by building `foo.drv^bar.drv`, and then with a
second nix invocation doing `<result-from-first>^baz`, but this is not
declarative. The ethos of Nix of being able to write down the full plan
everything you want to do, and then execute than plan with a single
command, and for that we need the new inductive form of these types.

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-08-10 00:08:32 -04:00
Théophane Hufschmitt
ad410abbe0 Stabilize discard-references
It has been there for a few releases now (landed in 2.14.0), doesn't
seem to cause any major issue and is wanted in a few places
(https://github.com/NixOS/nix/pull/7087#issuecomment-1544471346).
2023-08-07 16:53:37 +02:00
John Ericson
9113b4252b
Merge pull request #8760 from iFreilicht/fix-json-load-assertion-errors
Fix derivation load assertion errors
2023-08-06 17:07:43 -07:00
Felix Uhl
3fefc2b284 Fix derivation load assertion errors
When loading a derivation from a JSON, malformed input would trigger
cryptic "assertion failed" errors. Simply replacing calls to `operator []`
with calls to `.at()` was not enough, as this would cause json.execptions
to be printed verbatim.

Display nice error messages instead and give some indication where the
error happened.

*Before:*

```
$ echo 4 | nix derivation add
error: [json.exception.type_error.305] cannot use operator[] with a string argument with number

$ nix derivation show nixpkgs#hello | nix derivation add
Assertion failed: (it != m_value.object->end()), function operator[], file /nix/store/8h9pxgq1776ns6qi5arx08ifgnhmgl22-nlohmann_json-3.11.2/include/nlohmann/json.hpp, line 2135.

$ nix derivation show nixpkgs#hello | jq '.[] | .name = 5' | nix derivation add
error: [json.exception.type_error.302] type must be string, but is object

$ nix derivation show nixpkgs#hello | jq '.[] | .outputs = { out: "/nix/store/8j3f8j-hello" }' | nix derivation add
error: [json.exception.type_error.302] type must be object, but is string

```

*After:*

```
$ echo 4 | nix derivation add
error: Expected JSON of derivation to be of type 'object', but it is of type 'number'

$ nix derivation show nixpkgs#hello | nix derivation add
error: Expected JSON object to contain key 'name' but it doesn't

$ nix derivation show nixpkgs#hello | jq '.[] | .name = 5' | nix derivation add
error: Expected JSON value to be of type 'string' but it is of type 'number'

$ nix derivation show nixpkgs#hello | jq '.[] | .outputs = { out: "/nix/store/8j3f8j-hello" }' | nix derivation add
error:
       … while reading key 'outputs'

       error: Expected JSON value to be of type 'object' but it is of type 'string'
```
2023-08-05 01:34:30 +02:00
John Ericson
3b592c880a Add infra for experimental store implemenations
This is analogous to that for experimental settings and flags that we
have also added as of late.
2023-08-02 15:46:38 -04:00
Robert Hensing
33d58a90c2 toJSON: Add attribute path to trace 2023-07-31 13:02:54 +02:00
Alex Ameen
2d1d81114d
Add parseFlakeRef and flakeRefToString builtins (#8670)
Over the last year or so I've run into several use cases where I need to
parse and/or serialize URLs for use by `builtins.fetchTree` or
`builtins.getFlake`, largely in order to produce _lockfile-like_ files
for lang2nix frameworks or tools which use `nix` internally to drive
builds.

I've gone through the painstaking process of emulating
`nix::FlakeRef::fromAttrs` and `nix::parseFlakeRef` several times with
mixed success; but these are difficult to create and even harder to
maintain if I hope to stay aligned with changes to the real
parser/serializer.

I understand why adding new `builtins` isn't something we want to do
flagrantly. I'm recommending this addition simply because I keep
encountering use cases where I need to parse/serialize these URIs in
`nix` expressions, and I want a reliable solution.

Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
Co-authored-by: John Ericson <git@JohnEricson.me>
2023-07-25 17:43:33 +00:00
Naïm Favier
1b756e300f
doc: clarify release notes about nested attribute merges 2023-07-25 16:09:56 +02:00
Eelco Dolstra
c51be0345e Release notes 2023-07-24 17:19:31 +02:00
Naïm Favier
570a1a3ad7
parser: merge nested dynamic attributes
Fixes https://github.com/NixOS/nix/issues/7115
2023-07-21 17:14:03 +02:00
Valentin Gagarin
85d0eb6316
fix broken links (#8722) 2023-07-20 17:58:14 +02:00
Valentin Gagarin
0e4f6dfcf7 revert anchor prefix for builtin constants
the original change broke many pre-existing anchor links.

also change formatting of the constants listing slightly:
- the type should not be part of the anchor
- add highlight to the "impure only" note
2023-07-20 10:27:38 +02:00
John Ericson
453c4be93c
Merge pull request #8680 from NixLayeredStore/test-groups
Introduce notion of a test group, use for CA tests
2023-07-19 11:17:57 -04:00
Valentin Gagarin
b0173716f6
clarify wording on args@ default handling (#8596)
* clarify wording on args@ default handling

Most importantly use shorter sentences and emphasize the key point that defaults aren't taken into account

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: John Ericson <git@JohnEricson.me>
2023-07-19 13:07:07 +00:00
Robert Hensing
32494cbb29
Merge pull request #7973 from fricklerhandwerk/remove-channels
remove the Channels section
2023-07-19 14:02:26 +02:00
Valentin Gagarin
2fa90e5824 add more details on CA derivations 2023-07-19 13:59:18 +02:00
Valentin Gagarin
5f37ebcf83 document all special system features and their behavior 2023-07-19 13:34:03 +02:00
Valentin Gagarin
6c3cd429a6 fix broken links 2023-07-19 11:01:48 +02:00
Valentin Gagarin
1a220bed93 do not mention output attributes
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-07-19 10:38:12 +02:00
Valentin Gagarin
c8f04e2024 note that naming convention is from Autotools
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-07-19 10:37:40 +02:00
Valentin Gagarin
4944e37ec0 expand on the system type in hacking guide 2023-07-19 10:37:40 +02:00
Valentin Gagarin
e14c8a359e list moving parts of channels 2023-07-19 10:26:25 +02:00
Valentin Gagarin
4bab5a6208 revert channel files overview 2023-07-19 09:42:53 +02:00
Valentin Gagarin
cd0e39bd89 remove redundant information from channel profile description 2023-07-19 09:39:04 +02:00
Valentin Gagarin
ee72ede389 remove the Channels section
this is a how-to guide which should not be in the reference manual.
it also refers to `nix-env`, which should not be the first thing readers
of the reference manual encounter, as it behaves very differently in
spirit from the rest of Nix.

slightly reword the documentation to be more concise and informative.
2023-07-19 09:39:04 +02:00
John Ericson
259e328de8 Introduce notion of a test group, use for CA tests
Grouping our tests should make it easier to understand the intent than
one long poorly-arranged list. It also is convenient for running just
the tests for a specific component when working on that component.

We need at least one test group so this isn't dead code; I decided to
collect the tests for the `ca-derivations` and `dynamic-derivations`
experimental features in groups. Do
```bash
make ca.test-group -jN
```
and
```bash
make dyn-drv.test-group -jN
```
to try running just them.

I originally did this as part of #8397 for being able to just the local
overlay store alone. I am PRing it separately now so we can separate
general infra from new features.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-07-18 09:31:13 -04:00
Sinan Mohd
a5c88f8609
Nix Reference Manual: keep nix expressions uptodate with nixpkgs (#8703) 2023-07-16 09:25:11 +00:00
Mathnerd314
c70484454f Expanded test suite
* Lang now verifies errors and parse output

* Some new miscellaneous tests

* Easy way to update the tests

* Document workflow in manual

* Use `!` not `~` as separater char for sed

  It is confusing to use `~` when we are talking about paths and home
  directories!

* Test test suite itself (`test/lang-test/infra.sh`)

Additionally, run shellcheck on `tests/lang.sh` to help ensure it is
correct, now that is is more complex.

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-07-11 21:43:09 -04:00
Robert Hensing
40052c7613 fetchClosure: Docs and error message improvements
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-06-30 18:23:42 +02:00
Robert Hensing
50de11d662 doc: Improve fetchClosure documentation 2023-06-30 18:23:24 +02:00
Robert Hensing
32c69e2b17 doc: Typo 2023-06-30 18:22:47 +02:00
Eelco Dolstra
a0c617348b
Merge pull request #8589 from jfroche/sign-paths-as-allowed-user
Allow to sign path as unprivileged user
2023-06-30 13:13:42 +02:00
John Ericson
ca49e13414 Split testing into its own page in the contribution guide
`hacking.md` has gotten really big!
2023-06-27 18:27:49 -04:00
John Ericson
2ccc02515f Trailing commas in redirects
This avoids diff noise when more are added. Unlike with JSON, this is
allowed in JS.
2023-06-27 18:23:06 -04:00
Jean-François Roche
80c9259756 Allow to sign path as unprivileged user
User can now sign path as unprivileged/allowed user

refs #1708
2023-06-27 18:31:31 +02:00
John Ericson
22b278e011 Automatically document builtin constants
This is done in roughly the same way builtin functions are documented.

Also auto-link experimental features for primops, subsuming PR #8371.

Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-06-27 09:37:54 -04:00
John Ericson
d40f0e534d Don't say this when we still pollute the global scope
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-06-27 09:37:31 -04:00
John Ericson
4da7c86618 Switch example to a primop this is less ill-advised
Any primop will do for this, so might as well use one that isn't impure.

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-06-27 09:34:36 -04:00
John Ericson
97df060588 Better document build failure exit codes
- Improved API docs from comment

- Exit codes are for `nix-build`, not just `nix-store --release`

- Make note in tests so the magic numbers are not surprising

Picking up where #8387 left off.
2023-06-22 14:29:45 -04:00
John Ericson
78e1e3c753
Merge pull request #8565 from obsidiansystems/profile-delete-docs
Clarify docs on deleting generations, including fixing a mistake
2023-06-22 10:27:40 -04:00
Valentin Gagarin
0ab962d83f
Merge pull request #8556 from fricklerhandwerk/hacking-headings
hacking guide: use more self-descriptive section headings
2023-06-22 13:45:31 +02:00
John Ericson
5cc22e3370 Clarify docs on deleting generations, including fixing a mistake
Deleting store info corrected (there is a foot-gun in Nix with
`--delete-generations old`!)

Also a few things are cleaned up based on feedback.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2023-06-21 20:05:41 -04:00
Valentin Gagarin
5f9a921bc1
do not use "target", as it's a loaded term in the domain of compilers
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-06-21 14:31:09 +02:00
Valentin Gagarin
085104944b add redirects to changed anchors 2023-06-21 09:46:23 +02:00
Valentin Gagarin
a78f929065 fix anchor link 2023-06-21 09:43:22 +02:00
Valentin Gagarin
71317162c5 use more self-descriptive section headings 2023-06-20 13:44:43 +02:00
Valentin Gagarin
3c618c43c6
Merge pull request #8532 from fricklerhandwerk/nix.conf-sections
split nix.conf man page into sections
2023-06-20 13:16:14 +02:00
Valentin Gagarin
68c6219343 clarify setting options on the command line 2023-06-20 12:13:32 +02:00
Valentin Gagarin
bc7324e912 clarify read order for configuration settings 2023-06-20 12:13:26 +02:00
fricklerhandwerk
38bd1cc9bc split configuration file page into sections
this makes it easier to scan for specific information, such as the
format of command line flags
2023-06-20 12:11:01 +02:00
fricklerhandwerk
f2b54e3b71 add links to environment variables documentation 2023-06-20 12:11:01 +02:00
Travis A. Everett
33d3889831 redirect old platform uninstall instruction links
Uninstall instructions were moved to their own page in #8267. The
overall section link was redirected in #8286, but platform-specific
links (which I give out frequently when I triage installer trouble)
weren't included.
2023-06-19 15:17:50 -05:00
Silvan Mosberger
3910430b9d
Add more links in nix-build documentation (#8545)
* Add more links in nix-build documentation


Co-authored-by: John Ericson <git@JohnEricson.me>
2023-06-19 21:00:49 +02:00
John Ericson
469d06f9bc Split out worker protocol template definitions from declarations
This is generally a fine practice: Putting implementations in headers
makes them harder to read and slows compilation. Unfortunately it is
necessary for templates, but we can ameliorate that by putting them in a
separate header. Only files which need to instantiate those templates
will need to include the header with the implementation; the rest can
just include the declaration.

This is now documenting in the contributing guide.

Also, it just happens that these polymorphic serializers are the
protocol agnostic ones. (Worker and serve protocol have the same logic
for these container types.) This means by doing this general template
cleanup, we are also getting a head start on better indicating which
code is protocol-specific and which code is shared between protocols.
2023-06-19 11:45:59 -04:00
Valentin Gagarin
7bf17f8825
Add description for file system objects (#8500)
While this is not actually a notion in the implementation, it is
explicitly described in the thesis and quite important for understanding
how the store works.

Co-authored-by: John Ericson <git@JohnEricson.me>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-06-18 23:45:08 -04:00
John Ericson
60d81b5163
Merge pull request #8472 from NixOS/nix-language-purpose
Refine wording on the purpose of the Nix language
2023-06-18 23:38:05 -04:00
Christina Sørensen
741f7837f8
Fix wikipedia links (#8533) 2023-06-17 09:06:17 +00:00
Eelco Dolstra
e503eadafc
Merge pull request #8477 from edolstra/tarball-flake-redirects
Tarball flake improvements
2023-06-16 18:03:50 +02:00
Eelco Dolstra
b1ed9b4b0c
Apply suggestions from code review
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-06-16 16:48:37 +02:00
Eelco Dolstra
cab03fb779 Add docs 2023-06-16 15:58:42 +02:00
Valentin Gagarin
c3c4076342 make domain-specificity more specific
also slightly reword the purpose statement to introduce (and explain)
derivations right away.
2023-06-15 03:08:07 +02:00
John Ericson
946cd9e3f9
Merge pull request #8351 from obsidiansystems/delete-profiles-tests-docs
Expanding tests and docs relating to deleting profiles
2023-06-15 01:47:21 +02:00
John Ericson
5b7e285727 Improve nix-collect-garbage docs
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-06-14 19:01:08 -04:00
John Ericson
b55f26c65f Improve nix-env --delete-generations docs
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-06-14 19:01:08 -04:00
Valentin Gagarin
a1cf16563f
Fixup description of substituters (#8291)
Introduce what substituters "are" in the configuration option entry.
Remove arbitrary line breaks for easier editing in the future.
Link glossary some more.

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: John Ericson <git@JohnEricson.me>
2023-06-14 20:49:58 +00:00
John Ericson
37bffbc28f
Merge pull request #8488 from Mic92/update-requirements
nix actually needs c++20 now
2023-06-14 20:37:52 +02:00
John Ericson
ff905cb796
Merge pull request #4803 from ShamrockLee/nix-channel-list-generations
Add `nix-channel --list-generations`
2023-06-14 18:30:35 +02:00
Jörg Thalheim
c51f3f1eb2 nix actually needs c++20 now 2023-06-10 13:56:05 +02:00
Valentin Gagarin
db680e0e57
refine wording on the purpose of the Nix language
packages and configurations are not really a concept in Nix or the Nix language. the idea of transforming files into other files clearly captures what it's all about, and the new phrasing should make the term "derivation" more obvious both in terms of meaning and origin.
2023-06-08 02:00:05 +02:00
Théophane Hufschmitt
527eb4a99a
Merge pull request #8317 from fricklerhandwerk/doc-identifier
document identifier syntax for attribute sets
2023-06-02 13:10:27 +02:00
Théophane Hufschmitt
331f0967c4 Add a release note for nix-channel --list-generations 2023-06-02 10:14:53 +02:00
Shamrock Lee
b292177eec Add nix-channel --list-generations
Add support to --list-generations
as another way to say
nix-env --profile /nix/var/nix/profiles/per-user/$USER/channels --list-generations
the way we did for nix-channel --rollback [generation id]
2023-06-02 10:12:35 +02:00
Eelco Dolstra
008f89fa50 Typo 2023-05-31 14:05:00 +02:00
Eelco Dolstra
afc24e6a66 Release notes 2023-05-31 12:38:05 +02:00
Eelco Dolstra
9a5b9c588f
Merge pull request #8421 from fricklerhandwerk/doc-replaceStrings
update documentation according to release notes
2023-05-31 12:10:32 +02:00
Valentin Gagarin
738c0d5064
Merge pull request #8318 from fricklerhandwerk/doc-currentTime
document `builtins.currentTime`
2023-05-31 03:15:54 +02:00
Valentin Gagarin
52004696c0
Merge pull request #8413 from doronbehar/doc/distributed-builds/clearer-warning
distributed-builds.md: Clarify warning ssh access requirements
2023-05-31 02:05:05 +02:00
Valentin Gagarin
e2f33e0df1 rewrap lines to use one line per sentence
this makes future reviews easier as it reduces diff noise
2023-05-31 01:32:03 +02:00
Doron Behar
76287a9207 distributed-builds.md: Clarify warning ssh access requirements 2023-05-31 01:28:15 +02:00
Valentin Gagarin
7a5731aa07 link to mentioned builtin 2023-05-30 22:58:00 +02:00
polykernel
a382919d7d
primops: lazy evaluation of replaceStrings replacements
The primop `builtins.replaceStrings` currently always strictly evaluates the
replacement strings, however time and space are wasted for their computation
if the corresponding pattern do not occur in the input string. This commit
makes the evaluation of the replacement strings lazy by deferring their
evaluation to when the corresponding pattern are matched and memoize the result
for efficient retrieval on subsequent matches.

The testcases for replaceStrings was updated to check for lazy evaluation
of the replacements. A note was also added in the release notes to
document the behavior change.
2023-05-25 18:35:23 -04:00
Bernardo Meurer
bf693319f6
feat: add always-allow-substitutes
This adds a new configuration option to Nix, `always-allow-substitutes`,
whose effect is simple: it causes the `allowSubstitutes` attribute in
derivations to be ignored, and for substituters to always be used.

This is extremely valuable for users of Nix in CI, where usually
`nix-build-uncached` is used. There, derivations which disallow
substitutes cause headaches as the inputs for building already-cached
derivations need to be fetched to spuriously rebuild some simple text
file.

This option should be a good middle-ground, since it doesn't imply
rebuilding the world, such as the approach I took in
https://github.com/NixOS/nixpkgs/pull/221048
2023-05-22 19:42:29 +01:00
John Ericson
684e9be8b9
Merge pull request #8337 from fricklerhandwerk/channel-files
list files used by `nix-channel` on its own man page
2023-05-17 12:21:20 -04:00
John Ericson
16a60520f2
Merge pull request #8358 from fricklerhandwerk/output-addressed-references
fix wording on output-addressed store objects
2023-05-17 09:38:18 -04:00
Valentin Gagarin
76f40c02bf fix wording on output-addressed store objects
hashing is an implementation detail.
add references to the other terms.
2023-05-17 15:04:08 +02:00
Valentin Gagarin
6a5a8f51bb add cross-references to pure evaluation mode
use consistent wording everywhere.
add some details on the configuration option documentation.
2023-05-17 15:01:54 +02:00
Valentin Gagarin
549f8dc97b document builtins.currentTime 2023-05-17 13:49:35 +02:00
Valentin Gagarin
d8bfeda164 document identifier syntax for attribute sets
it's more likely for readers to find it right there.

this also slightly rewords examples to make them stand out better.
in the long run there probably needs to be a dedicated section on formal syntax, and better highlighting of examples.
2023-05-17 13:41:34 +02:00
Alexander Schmolck
8d4b6766e2 Convert short nix options to long ones
e.g. nix-env -e subversion => nix-env --uninstall subversion

The aim is to make the documentation less cryptic for newcomers and the
long options are more self-documenting.

The change was made with the following script:

<https://github.com/aschmolck/convert-short-nix-opts-to-long-ones>

and sanity checked visually.
2023-05-17 08:10:30 +01:00
Valentin Gagarin
8976769a1c
Reword info on XDG base dirs (#8338)
This gives some more context and should clarify why it works that way.
Also link it from the section on `NIX_USER_CONF_FILES`.

Co-authored-by: John Ericson <git@JohnEricson.me>
2023-05-15 23:30:20 -04:00
Valentin Gagarin
275468a1f0 list files used by nix-channel 2023-05-15 15:26:14 +02:00
John Ericson
914672dc4f
Merge pull request #8141 from tweag/user-files-doc
Document user files of nix
2023-05-15 07:11:47 -04:00
Victor Engmark
6e1bfb93dc refactor: Join commands to remove files 2023-05-15 11:05:26 +12:00
Victor Engmark
ed016a5bb0 docs: Mention more files referenced by the installer
`/etc/bash.bashrc` is backed up as `/etc/bash.bashrc.backup-before-nix`,
but since other changes might have been introduced in the meantime we can't
just tell the user to revert.
2023-05-15 11:03:27 +12:00
Victor Engmark
e26aad22c6 docs: Remove references to non-existing files
At least on Ubuntu 22.04, these files are not created as part of a multi-
user installation.
2023-05-15 10:26:47 +12:00
Victor Engmark
17a1c1ee4e docs: Sort files by name 2023-05-15 10:16:12 +12:00
Victor Engmark
3cc9b8630b docs: Remove Nix profile content from correct directory
At least on Ubuntu 22.04, the Nix installer creates
`/etc/profile.d/nix.sh`, not `/etc/profile/nix.sh`.
2023-05-15 10:13:46 +12:00
Victor Engmark
ccf512f4b8 docs: Remove redundant uninstall command
`sudo systemctl disable nix-daemon.socket nix-daemon.service` removes these
files already.
2023-05-15 10:06:27 +12:00
Valentin Gagarin
454e273451
Merge pull request #8328 from urbas/max-substitution-jobs 2023-05-14 11:59:40 +02:00
Matej Urbas
c66a7af0c6 max-substitution-jobs release note entry 2023-05-14 09:51:11 +01:00
Ana Hobden
17fb346ec6 Describe the or operation on attribute sets slightly more 2023-05-12 11:03:09 -07:00
Alexander Bantyev
992be330ab
Update doc/manual/src/SUMMARY.md.in
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-05-12 16:58:01 +04:00
Valentin Gagarin
70eb9c7ddb reword introduction to built-in functions
add anchor to `builtins.derivation` and list some built-in functions that are
exposed in the global scope.

I decided not to list everything, because we probably don't want to
encourage people using them that way.
2023-05-11 20:07:42 +02:00
Valentin Gagarin
69a0e6f86c reword documentation on builtins
- add anchor to `builtins`
- add type information
- reword description of `builtins` to offer more information concisely
2023-05-11 17:46:37 +02:00
Valentin Gagarin
2ef7f14e28 do not indent markdown list 2023-05-11 15:29:03 +02:00
Valentin Gagarin
dc8191ae14 add redirect to track moved uninstall section 2023-05-03 11:39:29 +02:00
Valentin Gagarin
5d78dc4176
doc rendering: add functions to scope explicitly (#7378)
* doc rendering: add functions to scope explicitly

this especially helps beginners with code readability, since the origin
of names is always immediately visible.
2023-05-03 07:16:29 +00:00
Valentin Gagarin
f8620758aa display documentation on manifest files separately
it's probably better not to show the manifest file documentation in the
command-specific pages, because these are implementation details that are not really practically useful.

this means no additional hassle for building the manual, but clutters
the table of contents a bit.
2023-04-28 12:10:36 +02:00
Valentin Gagarin
9b2a4a4729 move uninstall instructions to a separate page
placed in a subsection of the binary install, the instructions are hard
to find. putting them in a separate page that is shown in the table of
contents should make it easier for users to find what they need when
they need it.
2023-04-28 11:53:38 +02:00
Valentin Gagarin
da0dbf36cb move manifest information to the bottom of the page 2023-04-26 15:39:35 +02:00
Valentin Gagarin
be7c236565 move compatibility info to nix profile docs 2023-04-26 15:39:35 +02:00
Valentin Gagarin
219aaf5a0b increase heading level
otherwise the headings won't match at the point where they are included.
this is a bit hacky and brittle, but works for now.
2023-04-26 15:39:35 +02:00
Valentin Gagarin
bb8e3b5d86 update description on how profiles work
adapt to the example listing
2023-04-26 15:39:35 +02:00
Valentin Gagarin
7770d82240 fix typos and wording 2023-04-26 15:39:24 +02:00
Valentin Gagarin
9d386fe2ee add colons to connect listings with descriptions 2023-04-26 15:39:16 +02:00
Valentin Gagarin
a1c996dc7e list information regular users first
this is to make it consistent everywhere
2023-04-26 15:39:02 +02:00
Alexander Bantyev
8a93b5a551 Document user files of nix 2023-04-26 15:38:19 +02:00
Rynn Blackmon
c4df53f154
Mention $DRV_PATH in post-build-hook docs 2023-04-19 16:32:47 -07:00
Michael Utz
40fcb22313
Update installing-binary.md 2023-04-18 13:18:30 +03:00
Noah Snelson
324ed0c367 Documentation: fix typo for Nix database link in manual
Fixes broken link for `Nix database` anchor in the Glossary page of the
Nix manual.
2023-04-17 20:15:08 -07:00
Valentin Gagarin
39e0f609cc
Merge pull request #7514 from fricklerhandwerk/opt-I
remove incorrect reference to `NIX_PATH` documentation
2023-04-17 16:27:23 +02:00
Valentin Gagarin
f4119a67cc
use @docroot@ link 2023-04-17 14:54:30 +02:00
Valentin Gagarin
d0cf615cbb
add link to nix-conf setting
Co-authored-by: John Ericson <git@JohnEricson.me>
2023-04-17 14:27:26 +02:00
John Ericson
9800c1e807 Mark experimental configuration settings programmatically
Fix #8162

The test is changed to compare `nlohmann::json` values, not strings of dumped
JSON, which allows us to format things more nicely.
2023-04-16 10:58:04 -04:00
John Ericson
ba9ae691b6 Add optionalString to manual Nix lang utilities
Use it everywhere it could be also.
2023-04-16 10:57:46 -04:00
John Ericson
b41f739068
Merge pull request #7864 from obsidiansystems/quickstart-long-options
Use long options instead of short ones in the "quick start"
2023-04-14 09:13:16 -04:00
John Ericson
d93e76fbb8 Start cross-referencing experimental features
- Create a glossary entry for experimental features.

- Have the man page experimental feature notice link `nix-commmand`.

  (Eventually this should be programmed, based on whether the command is
  experimental, and if so what experimental feature does it depend on.)

- Document which installables depend on which experimental features.

  I tried to use the same style (bold warning and block quote) that the
  top of the man page uses.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-04-14 07:45:08 -04:00
Eelco Dolstra
e570a91661 Release notes 2023-04-11 12:40:56 +02:00
Eelco Dolstra
60a1bf08b6
Merge pull request #7798 from peeley/list-experimental-features
Documentation: list experimental features in manual
2023-04-11 11:55:35 +02:00
John Ericson
73eb6a2a57 Single page for experimental feature descriptions
As requested by @fricklerhandwerk.
2023-04-09 11:01:23 -04:00
John Ericson
9d1105824f Add release notes for nix derivation {add,show} 2023-04-07 08:35:59 -04:00
John Ericson
2b98af2e62 nix show-derivation -> nix derivation show 2023-04-07 08:34:58 -04:00
matthewcroughan
9207f94582 Add Store::isTrustedClient()
This function returns true or false depending on whether the Nix client
is trusted or not. Mostly relevant when speaking to a remote store with
a daemon.

We include this information in `nix ping store` and `nix doctor`

Co-Authored-By: John Ericson <John.Ericson@Obsidian.Systems>
2023-04-06 19:59:57 -04:00
John Ericson
bc192a95ef Describe active experimental features in the contributing guide
They are put in the manual separate pages under the new overarching
description of experimental features.

The settings page just lists the valid experimental feature names (so
people know what a valid setting entry looks like), with links to those
pages. It doesn't attempt to describe each experimental feature as that
is too much information for the configuration settings section.
2023-04-06 18:07:59 -04:00
John Ericson
b7cd87a853 Merge remote-tracking branch 'upstream/master' into list-experimental-features 2023-04-06 18:07:46 -04:00
Théophane Hufschmitt
9185639631
Document the concept of “experimental feature” (#5930)
Add a page explaining what “experimental features” are, when and how they should be used

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
Co-authored-by: John Ericson <John.Ericson@Obsidian.Systems>
2023-04-06 11:25:22 +00:00
Valentin Gagarin
b11ae93581 remove incorrect reference
the semantics are not explained in the referenced section any more, they
have been moved to the documentation for common options in the new CLI [0].

[0]: 703d863a48
2023-04-05 14:03:11 +02:00
Valentin Gagarin
bbdb5a58c7
Merge pull request #7849 from milahu/fix-man-nix-shell
docs: fix nix-shell commands
2023-04-05 13:06:59 +02:00
milahu
1ac10808ba docs: fix nix-shell commands 2023-04-05 12:38:36 +02:00
Mike (stew) O'Connor
cab5266092 add a definition of the nix database to the glossary
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-04-05 10:50:34 +02:00
Valentin Gagarin
ed5d0c1362 add anchor to 'local store' 2023-04-05 10:48:59 +02:00
John Ericson
53d0836347 Assemble experimental feature docs outside of Nix itself
Instead of constructing a markdown list in C++ (which involved all sorts
of nasty string literals), export some JSON and assemble it with the
manual build system.

Besides following the precedent set with other dumped data, this is a
better separate of content and presentation; if we decide for example we
want to display this information in a different way, or in a different
section of the manual, it will become much easier to do so.
2023-04-04 22:57:11 -04:00