Commit graph

412 commits

Author SHA1 Message Date
Matthew Kenigsberg
6d40fe573c rename to NIX_GCROOT 2020-04-28 11:18:54 -06:00
Matthew Kenigsberg
9e95b95a5d comment 2020-04-27 13:18:26 -06:00
Matthew Kenigsberg
a3bc695e7d Set GCROOT to store path to prevent garbage collection 2020-04-27 11:22:20 -06:00
Ben Burdette
e4fb9a3849 remove 'format' from Error constructor calls 2020-04-21 17:07:07 -06:00
Ben Burdette
15e9564fd1 logEI for tunnelLogger and progressbar 2020-04-19 17:16:51 -06:00
Ben Burdette
3d5b1032a1 logError, logWarning; Logger functions; switch to Verbosity enum 2020-04-17 15:07:44 -06:00
Eelco Dolstra
efaffaa9d1 Use Logger::stdout()
(cherry picked from commit 8f41847394)
2020-04-16 18:14:01 +02:00
Eelco Dolstra
67a5941472 Logger: Add method for writing to stdout
Usually this just writes to stdout, but for ProgressBar, we need to
clear the current line, write the line to stdout, and then redraw the
progress bar.

(cherry picked from commit 696c026006)
2020-04-16 18:03:38 +02:00
Eelco Dolstra
fcd048a526 Use RootValue 2020-04-16 18:02:59 +02:00
Andreas Rammhold
d2c371927e SourceExprCommand: allocate the vSourceExpr via uncollectable memory
Previously the memory would occasionally be collected during eval since
the GC doesn't consider the member variable as alive / doesn't scan the
region of memory where the pointer lives.

By using the traceable_allocator<T> allocator provided by Boehm GC we
can ensure the memory isn't collected. It should be properly freed when
SourceExprCommand goes out of scope.
2020-04-13 21:23:54 +02:00
Nikola Knezevic
f5095594e7 datatransfer.{cc,hh} -> filetransfer.{cc,hh} 2020-04-08 22:26:57 +02:00
Nikola Knezevic
c330109bfa DataTransfer -> FileTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic
a0c5931208 actDownload -> actDataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic
cd391206e6 {get,make,new}Downloader -> DataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic
e5cc53beec DownloadSettings -> DataTransferSettings 2020-04-08 22:26:57 +02:00
Nikola Knezevic
741e9012d3 Rename src/lib/download.* to src/lib/datatransfer.* 2020-04-08 22:26:57 +02:00
Nikola Knezevic
65ef57e0cb DownloadRequest -> DataTransferRequest 2020-04-08 22:26:57 +02:00
Eelco Dolstra
5449ff7d8a
Merge pull request #3477 from Ninlives/nix-run-using-env
`nix run` using $SHELL as default command
2020-04-08 19:35:39 +02:00
mlatus
9d04b5da17 nix run using $SHELL as default command 2020-04-07 20:29:40 +08:00
Eelco Dolstra
462421d345 Backport libfetchers from the flakes branch
This provides a pluggable mechanism for defining new fetchers. It adds
a builtin function 'fetchTree' that generalizes existing fetchers like
'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a
set of attributes, e.g.

  fetchTree {
    type = "git";
    url = "https://example.org/repo.git";
    ref = "some-branch";
    rev = "abcdef...";
  }

The existing fetchers are just wrappers around this. Note that the
input attributes to fetchTree are the same as flake input
specifications and flake lock file entries.

All fetchers share a common cache stored in
~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching
mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}).

This also adds support for Git worktrees (c169ea5904).
2020-04-07 09:03:14 +02:00
Eelco Dolstra
3166b97174 nix shell -> nix dev-shell 2020-03-31 13:45:28 +02:00
John Ericson
c251b011cd Merge remote-tracking branch 'upstream/master' into enum-FileIngestionMethod 2020-03-30 18:16:44 -04:00
Eelco Dolstra
e1a94ad852 Backport 'nix dev-shell' from the flakes branch
This also adds a '--profile' option to 'nix build' (replacing 'nix-env
--set').
2020-03-30 19:16:45 +02:00
John Ericson
832bd534dc Store parsed hashes in DerivationOutput
It's best to detect invalid data as soon as possible, with data types
that make storing it impossible.
2020-03-30 11:33:35 -04:00
Eelco Dolstra
e322a16523 Remove global -I flags
(cherry picked from commit 2c692a3b14)
2020-03-30 15:30:19 +02:00
John Ericson
225e62a56a Replace some bool recursive with a new FileIngestionMethod enum 2020-03-29 15:16:20 -04:00
Eelco Dolstra
c85097da7c Fix --refresh with --no-net
https://hydra.nixos.org/build/110879699
(cherry picked from commit 5bbe793abf)
2020-03-24 14:26:23 +01:00
Eelco Dolstra
6b824c78f1 nix: Add --refresh as an alias for --tarball-ttl 0
(cherry picked from commit e721f99817)
2020-03-24 14:26:23 +01:00
Eelco Dolstra
777e21e596 nix path-info --json: Print hash in SRI format
(cherry picked from commit 442e665d6d)
2020-03-24 14:26:23 +01:00
Eelco Dolstra
7a8de57d3e Pretty-print 'nix why-depends' / 'nix-store -q --tree' output
Extracted from 678301072f.
2020-03-24 14:26:23 +01:00
Eelco Dolstra
231a8aa2c2 nix edit: Support non-derivation attributes
E.g.

  $ nix edit .#nixosConfigurations.bla

now works.

(cherry picked from commit d2032edb2f)
2020-03-24 14:06:47 +01:00
Eelco Dolstra
c1ca4f0acc findAlongAttrPath(): Return position
(cherry picked from commit 0b013a54dc)
2020-03-24 14:06:47 +01:00
Eelco Dolstra
ef74fafc03
nix repl: Put EvalState on the heap
See 0629601da1.
2020-03-19 13:52:28 +01:00
Eelco Dolstra
b244e65cdb
nix repl: Scan NixRepl for GC roots
Fixes #3175.
2020-03-19 13:50:01 +01:00
Will Dietz
15edd2349e local.mk: fix user-env.cc dep on buildenv.nix.gen.hh, resolve occasional build failure 2020-03-12 00:51:56 +01:00
Eelco Dolstra
9950cdec35 Move some corepkgs into the nix binary 2020-03-11 16:57:48 +01:00
Eelco Dolstra
d8fd31f50f
Disable the progress bar if $TERM == dumb or unset
Fixes #3363.
2020-02-18 17:51:18 +01:00
Eelco Dolstra
d8972317fc Prevent uninitialized StorePath creation 2020-02-13 16:12:16 +01:00
Eelco Dolstra
4511f09b49 nix make-content-addressable: Add --json flag
Fixes #3274.
2019-12-18 17:39:02 +01:00
Eelco Dolstra
ba6d2093c7 Fix progress bar 2019-12-14 23:19:04 +01:00
Eelco Dolstra
bbe97dff8b Make the Store API more type-safe
Most functions now take a StorePath argument rather than a Path (which
is just an alias for std::string). The StorePath constructor ensures
that the path is syntactically correct (i.e. it looks like
<store-dir>/<base32-hash>-<name>). Similarly, functions like
buildPaths() now take a StorePathWithOutputs, rather than abusing Path
by adding a '!<outputs>' suffix.

Note that the StorePath type is implemented in Rust. This involves
some hackery to allow Rust values to be used directly in C++, via a
helper type whose destructor calls the Rust type's drop()
function. The main issue is the dynamic nature of C++ move semantics:
after we have moved a Rust value, we should not call the drop function
on the original value. So when we move a value, we set the original
value to bitwise zero, and the destructor only calls drop() if the
value is not bitwise zero. This should be sufficient for most types.

Also lots of minor cleanups to the C++ API to make it more modern
(e.g. using std::optional and std::string_view in some places).
2019-12-10 22:06:05 +01:00
Eelco Dolstra
3b9c9d34e5 Shut up clang warning
(cherry picked from commit 3392f1b778)
2019-12-05 20:41:44 +01:00
Eelco Dolstra
80ab95315d nix doctor: Fix typo
(cherry picked from commit 96c6b08ed7)
2019-12-05 20:40:52 +01:00
Eelco Dolstra
ac67685606 Make subcommand construction in MultiCommand lazy
(cherry picked from commit a0de58f471)
2019-12-05 20:19:26 +01:00
Eelco Dolstra
f964f428fe Move Command and MultiCommand to libutil
(cherry picked from commit f70434b1fb)
2019-12-05 20:13:47 +01:00
Eelco Dolstra
f1b5c76c1a MultiCommand: Simplify construction
(cherry picked from commit 15a16e5c05)
2019-12-05 20:10:35 +01:00
Eelco Dolstra
313106d549
Fix clang warnings 2019-11-26 21:07:44 +01:00
Eelco Dolstra
ba87b08f85
getEnv(): Return std::optional
This allows distinguishing between an empty value and no value.
2019-11-22 16:18:13 +01:00
Eelco Dolstra
0d6774468c
Move editorFor srom libutil to nix
libutil should not depend on libexpr.
2019-11-08 15:13:32 +01:00
Eelco Dolstra
d823381c0a
Merge branch 'fix/nix-doctor-output' of https://github.com/bhipple/nix 2019-11-05 16:04:40 +01:00
Eelco Dolstra
852554bb16
Merge branch 'nix-repl-e' of https://github.com/zimbatm/nix 2019-11-05 11:20:53 +01:00
Eelco Dolstra
f5a46ef0b1
Merge pull request #3202 from kraem/master
Update nix eval --help msg to not include deprecated command
2019-11-04 09:34:30 +01:00
Harald van Dijk
c935ad3f02
Fix progress bar when nix-prefetch-url is piped.
The intent of the code was that if the window size cannot be determined,
it would be treated as having the maximum possible size. Because of a
missing assignment, it was actually treated as having a width of 0.

The reason the width could not be determined was because it was obtained
from stdout, not stderr, even though the printing was done to stderr.

This commit addresses both issues.
2019-11-03 21:46:59 +00:00
kraem
dcd7a26063
Update nix eval --help msg to not include deprecated command 2019-11-03 18:47:28 +01:00
ng0
b811bd2172 include netinet/in.h in src/nix/main.cc
Fixes #3186
2019-11-01 14:09:42 +00:00
Benjamin Hipple
80d5ec6ff4 Minor updates to inline comments
Add missing docstring on InstallableCommand. Also, some of these were wrapped
when they're right next to a line longer than the unwrapped line, so we can just
unwrap them to save vertical space.
2019-10-31 05:56:37 -04:00
zimbatm
d407f4d15f
nix repl: also handle lambda edit 2019-10-28 21:37:22 +01:00
zimbatm
3774fe55fd
editorFor: take a pos object instead 2019-10-28 21:36:34 +01:00
zimbatm
ec448f8bb6
libexpr: findDerivationFilename return Pos instead of tuple 2019-10-28 21:29:54 +01:00
zimbatm
59c7249769
libexpr: add findDerivationFilename
extract the derivation to filename:lineno heuristic
2019-10-23 17:21:16 +02:00
zimbatm
207a537343
libutil: add editorFor heuristic 2019-10-23 16:48:28 +02:00
zimbatm
73ff84f6a8
nix repl: add :edit command
This allows to have a repl-centric workflow to working on nixpkgs.

Usage:

    :edit <package> - heuristic that find the package file path

    :edit <path> - just open the editor on the file path

Once invoked, `nix repl` will open $EDITOR on that file path. Once the
editor exits, `nix repl` will automatically reload itself.
2019-10-23 16:09:42 +02:00
Eelco Dolstra
629b9b0049 Mark content-addressable paths with references as experimental 2019-10-21 18:05:31 +02:00
Eelco Dolstra
e68736936a nix make-content-addressable: Add examples 2019-10-21 17:58:17 +02:00
Eelco Dolstra
d77970fde7 Fix build 2019-10-21 17:49:16 +02:00
Eelco Dolstra
0abb3ad537 Allow content-addressable paths to have references
This adds a command 'nix make-content-addressable' that rewrites the
specified store paths into content-addressable paths. The advantage of
such paths is that 1) they can be imported without signatures; 2) they
can enable deduplication in cases where derivation changes do not
cause output changes (apart from store path hashes).

For example,

  $ nix make-content-addressable -r nixpkgs.cowsay
  rewrote '/nix/store/g1g31ah55xdia1jdqabv1imf6mcw0nb1-glibc-2.25-49' to '/nix/store/48jfj7bg78a8n4f2nhg269rgw1936vj4-glibc-2.25-49'
  ...
  rewrote '/nix/store/qbi6rzpk0bxjw8lw6azn2mc7ynnn455q-cowsay-3.03+dfsg1-16' to '/nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16'

We can then copy the resulting closure to another store without
signatures:

  $ nix copy --trusted-public-keys '' ---to ~/my-nix /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16

In order to support self-references in content-addressable paths,
these paths are hashed "modulo" self-references, meaning that
self-references are zeroed out during hashing. Somewhat annoyingly,
this means that the NAR hash stored in the Nix database is no longer
necessarily equal to the output of "nix hash-path"; for
content-addressable paths, you need to pass the --modulo flag:

  $ nix path-info --json /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16  | jq -r .[].narHash
  sha256:0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw

  $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16
  1ggznh07khq0hz6id09pqws3a8q9pn03ya3c03nwck1kwq8rclzs

  $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16 --modulo iq6g2x4q62xp7y7493bibx0qn5w7xz67
  0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw
2019-10-21 17:47:24 +02:00
Eelco Dolstra
aabf5c86c9
Add experimental-features setting
Experimental features are now opt-in. There is currently one
experimental feature: "nix-command" (which enables the "nix"
command. This will allow us to merge experimental features more
quickly, without committing to supporting them indefinitely.

Typical usage:

$ nix build --experimental-features 'nix-command flakes' nixpkgs#hello

(cherry picked from commit 8e478c2341,
without the "flakes" feature)
2019-10-21 13:34:44 +02:00
Eelco Dolstra
389a2cebed
SourceExprCommand::getSourceExpr(): Allocate more space
Fixes #3140.
2019-10-21 13:14:39 +02:00
Eelco Dolstra
95cf23ee7c
nix verify: Fix uninitialized variable 2019-10-10 15:03:01 +02:00
Eelco Dolstra
4331eeb13d
Filter ANSI escape sequences in -L output
Otherwise, builds like NixOS VM tests may leave the terminal in a
weird state and do resets.
2019-10-09 23:25:06 +02:00
Eelco Dolstra
99b73fb507
OCD performance fix: {find,count}+insert => insert 2019-10-09 16:06:29 +02:00
Eelco Dolstra
e6e61f0a54
getSourceExpr(): Handle channels
Fixes #1892.
Fixes #1865.
Fixes #3119.
2019-10-09 15:36:51 +02:00
Eelco Dolstra
7c74f075f4
nix search: Don't quietly ignore errors 2019-10-09 14:46:58 +02:00
Sam Doshi
6f6cb5e388 nix search: remove verbose example 2019-10-07 11:40:42 +01:00
Benjamin Hipple
c5bd564c69 nix doctor: add more logging output to checks
When running nix doctor on a healthy system, it just prints the store URI and
nothing else. This makes it unclear whether the system is in a good state and
what check(s) it actually ran, since some of the checks are optional depending
on the store type.

This commit updates nix doctor to print an colored log message for every check
that it does, and explicitly state whether that check was a PASS or FAIL to make
it clear to the user whether the system passed its checkup with the doctor.

Fixes #3084
2019-10-06 16:57:57 -04:00
Eelco Dolstra
bd79c1f6f6 Don't catch exceptions by value
(cherry picked from commit 893be6f5e3)
2019-09-22 21:56:56 +02:00
Eelco Dolstra
e5b397b2c7 Merge branch 'test-sandboxing' of https://github.com/matthewbauer/nix 2019-08-27 20:58:47 +02:00
regnat
7c5596734f
Add a post-build-hook
Passing `--post-build-hook /foo/bar` to a nix-* command will cause
`/foo/bar` to be executed after each build with the following
environment variables set:

    DRV_PATH=/nix/store/drv-that-has-been-built.drv
    OUT_PATHS=/nix/store/...build /nix/store/...build-bin /nix/store/...build-dev

This can be useful in particular to upload all the builded artifacts to
the cache (including the ones that don't appear in the runtime closure
of the final derivation or are built because of IFD).

This new feature prints the stderr/stdout output to the `nix-build`
and `nix build` client, and the output is printed in a Nix 2
compatible format:

    [nix]$ ./inst/bin/nix-build ./test.nix
    these derivations will be built:
      /nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv
    building '/nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv'...
    hello!
    bye!
    running post-build-hook '/home/grahamc/projects/github.com/NixOS/nix/post-hook.sh'...
    post-build-hook: + sleep 1
    post-build-hook: + echo 'Signing paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: Signing paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: + sleep 1
    post-build-hook: + echo 'Uploading paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: Uploading paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: + sleep 1
    post-build-hook: + printf 'very important stuff'
    /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation

    [nix-shell:~/projects/github.com/NixOS/nix]$ ./inst/bin/nix build -L -f ./test.nix
    my-example-derivation> hello!
    my-example-derivation> bye!
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + echo 'Signing paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> Signing paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + echo 'Uploading paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> Uploading paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + printf 'very important stuff'
    [1 built, 0.0 MiB DL]

Co-authored-by: Graham Christensen <graham@grahamc.com>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2019-08-02 10:48:15 -04:00
Matthew Bauer
d171090530 Disable CLONE_NEWUSER when it’s unavailable
Some kernels disable "unpriveleged user namespaces". This is
unfortunate, but we can still use mount namespaces. Anyway, since each
builder has its own nixbld user, we already have most of the benefits
of user namespaces.
2019-07-25 14:42:25 -04:00
Eelco Dolstra
aa739e7839
nix copy: Rename --substitute to --substitute-on-destination
'--substitute' was being shadowed by the regular '--substitute' (the
short-hand for '--option substitute true').

Fixes #2983.
2019-07-10 11:28:37 +02:00
Niklas Hambüchen
a96006d97f Get BOOST_LDFLAGS from autoconf, fix Ubuntu 16.04 build.
Our use of boost::coroutine2 depends on -lboost_context,
which in turn depends on `-lboost_thread`, which in turn depends
on `-lboost_system`.

I suspect that this builds on nix only because of low-level hacks
like NIX_LDFLAGS.

This commit passes the proper linker flags, thus fixing bootstrap
builds on non-nix distributions like Ubuntu 16.04.

With these changes, I can build Nix on Ubuntu 16.04 using:

    ./bootstrap.sh
    ./configure --prefix=$HOME/editline-prefix \
      --disable-doc-gen \
      CXX=g++-7 \
      --with-boost=$HOME/boost-prefix \
      EDITLINE_CFLAGS=-I$HOME/editline-prefix/include \
      EDITLINE_LIBS=-leditline \
      LDFLAGS=-L$HOME/editline-prefix/lib
    make

where

* g++-7 comes from gcc-7 from
  https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test,
* editline 1.14 from https://github.com/troglobit/editline/releases/tag/1.14.0
	was installed into `$HOME/editline-prefix`
  (because Ubuntu 16.04's `editline` is too old to have the function nix uses),
* boost 1.66 from
	https://www.boost.org/doc/libs/1_66_0/more/getting_started/unix-variants.html
	was installed into $HOME/boost-prefix (because Ubuntu 16.04 only has 1.58)
2019-07-03 04:32:25 +02:00
Niklas Hambüchen
d203c554fa Fix C++ compatibility with older editline versions.
For example, Ubuntu 16.04 and many similar long-term-support distros
have older versions.
2019-07-03 04:32:25 +02:00
Eelco Dolstra
6847c92788
Fix macOS build failure
Issue #2976.
2019-06-28 15:38:23 +02:00
Eelco Dolstra
324a5dc92f
ProgressBar: Fix updating
'updateCV.notify_one()' does nothing if the update thread is not
waiting for updateCV (in particular this happens when it is sleeping
on quitCV). So also set a variable to ensure that the update isn't
lost.
2019-06-25 21:59:20 +02:00
Eelco Dolstra
09dde33c19
Automatically use --no-net if there are no network interfaces
(cherry picked from commit 04a5976996)
2019-06-25 12:45:59 +02:00
Eelco Dolstra
5600b070a7
Add "warning" verbosity level
This ensures that "nix" shows warnings. Previously these were hidden
because they were at "info" level.

(cherry picked from commit 615a9d031d)
2019-06-25 12:44:17 +02:00
Eelco Dolstra
26bc876ae6
nix: Add -L alias for --print-build-logs 2019-06-15 16:45:00 +02:00
Eelco Dolstra
4d829916e7
Merge pull request #2800 from flokli/progress-bar-hide-unknown-expected
progress-bar: hide expected if expected is 0 (unknown)
2019-05-21 13:29:28 +02:00
Eelco Dolstra
8f6c72faee
Merge pull request #2810 from NixOS/print-build-logs
nix: Add --print-build-logs flag
2019-05-15 20:38:38 +02:00
Eelco Dolstra
66b8a62101 nix: Add --print-build-logs flag
This causes 'nix' to print build log output to stderr rather than
showing the last log line in the progress bar. Log lines are prefixed
by the name of the derivation (minus the version string), e.g.

  binutils> make[1]: Leaving directory '/build/binutils-2.31.1'
  binutils-wrapper> unpacking sources
  binutils-wrapper> patching sources
  ...
  binutils-wrapper> Using dynamic linker: '/nix/store/kr51dlsj9v5cr4n8700jliyz8v5b2q7q-bootstrap-stage0-glibc/lib/ld-linux-x86-64.so.2'
  bootstrap-stage2-gcc-wrapper> unpacking sources
  ...
  linux-headers> unpacking sources
  linux-headers> unpacking source archive /nix/store/8javli69jhj3bkql2c35gsj5vl91p382-linux-4.19.16.tar.xz
2019-05-15 17:33:56 +02:00
Florian Klink
6ade7ec022 progress-bar: hide expected if expected is 0 (unknown)
Sometimes, "expected" can be "0", but in fact means "unknown".

This is for example the case when downloading a file while the http
server doesn't send the `Content-Length` header, like when running `nix
build` pointing to a nixpkgs checkout streamed from GitHub:

⇒  nix build -f https://github.com/NixOS/nixpkgs/archive/master.tar.gz hello
[1.8/0.0 MiB DL] downloading 'https://github.com/NixOS/nixpkgs/archive/master.tar.gz'

In that case, don't show that weird progress bar, but only the (slowly
increasing) downloaded size ("done").

⇒  nix build -f https://github.com/NixOS/nixpkgs/archive/master.tar.gz hello
[1.8 MiB DL] downloading 'https://github.com/NixOS/nixpkgs/archive/master.tar.gz'

This commit also updates fmt calls with three numbers (when something is
currently 'running' too) - I'm not sure if this can be provoked, but
showing "0" as expected doesn't make any sense, as we're obviously doing
more than nothing.
2019-05-11 12:34:39 +02:00
xbreak
fcd7660976 repl: Restore CTRL-C behaviour
Install signal handler during `readline` to handle SIGINT to abort
partially typed expressions.
2019-03-24 09:39:48 +00:00
Eelco Dolstra
ef52ccf035
experimental/optional -> optional 2019-03-14 14:10:52 +01:00
Eelco Dolstra
01d07b1e92
Revert "Restore parent mount namespace before executing a child process"
This reverts commit a0ef21262f. This
doesn't work in 'nix run' and nix-shell because setns() fails in
multithreaded programs, and Boehm GC mark threads are uncancellable.

Fixes #2646.
2019-02-05 10:49:19 +01:00
Eelco Dolstra
30906122e2
Merge pull request #2617 from veprbl/pr/V547_nix_repl.cc
remove some dead code in nix/repl.cc
2019-01-10 20:55:27 +01:00
John Ericson
fef9f5653b Remove mentions of libformat, it no longer exists 2019-01-05 14:31:29 -05:00
Dmitry Kalinkin
93c9ba3e78 remove some dead code in nix/repl.cc
Fixes a static analyzer warning:

Expression 'isDrv' is always false.

Fixes: 3beb6f6e7 ('Show derivations more concisely')
2018-12-25 22:38:40 +03:00
Eelco Dolstra
6024dc1d97
Support SRI hashes
SRI hashes (https://www.w3.org/TR/SRI/) combine the hash algorithm and
a base-64 hash. This allows more concise and standard hash
specifications. For example, instead of

  import <nix/fetchurl.nl> {
    url = https://nixos.org/releases/nix/nix-2.1.3/nix-2.1.3.tar.xz;
    sha256 = "5d22dad058d5c800d65a115f919da22938c50dd6ba98c5e3a183172d149840a4";
  };

you can write

  import <nix/fetchurl.nl> {
    url = https://nixos.org/releases/nix/nix-2.1.3/nix-2.1.3.tar.xz;
    hash = "sha256-XSLa0FjVyADWWhFfkZ2iKTjFDda6mMXjoYMXLRSYQKQ=";
  };

In fixed-output derivations, the outputHashAlgo is no longer mandatory
if outputHash specifies the hash (either as an SRI or in the old
"<type>:<hash>" format).

'nix hash-{file,path}' now print hashes in SRI format by default. I
also reverted them to use SHA-256 by default because that's what we're
using most of the time in Nixpkgs.

Suggested by @zimbatm.
2018-12-13 14:30:52 +01:00
Daiderd Jordan
0e6c84a771
nix repl: don't create result symlinks 2018-12-12 23:00:07 +01:00
Kai Harries
de5997332d repl: give user the choice between libeditline and libreadline
The goal is to support libeditline AND libreadline and let the user
decide at compile time which one to use.

Add a compile time option to use libreadline instead of
libeditline. If compiled against libreadline completion functionality
is lost because of a incompatibility between libeditlines and
libreadlines completion function. Completion with libreadline is
possible and can be added later.

To use libreadline instead of libeditline the environment
variables 'EDITLINE_LIBS' and 'EDITLINE_CFLAGS' have to been set
during the ./configure step.

Example:

  EDITLINE_LIBS="/usr/lib/x86_64-linux-gnu/libhistory.so /usr/lib/x86_64-linux-gnu/libreadline.so"
  EDITLINE_CFLAGS="-DREADLINE"

The reason for this change is that for example on Debian already three
different editline libraries exist but none of those is compatible the
flavor used by nix. My hope is that with this change it would be
easier to port nix to systems that have already libreadline available.
2018-11-20 15:43:21 +01:00