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Author SHA1 Message Date
Silvan Mosberger
b70d22baca
Replace Value type setters with mk* functions 
Move clearValue inside Value

mkInt instead of setInt

mkBool instead of setBool

mkString instead of setString

mkPath instead of setPath

mkNull instead of setNull

mkAttrs instead of setAttrs

mkList instead of setList*

mkThunk instead of setThunk

mkApp instead of setApp

mkLambda instead of setLambda

mkBlackhole instead of setBlackhole

mkPrimOp instead of setPrimOp

mkPrimOpApp instead of setPrimOpApp

mkExternal instead of setExternal

mkFloat instead of setFloat

Add note that the static mk* function should be removed eventually
 2020-12-18 21:48:22 +01:00
Silvan Mosberger
12e65078ef
Rename Value::normalType() -> Value::type() 2020-12-17 14:45:45 +01:00
Eelco Dolstra
3765174691
Merge pull request #4348 from NixOS/ca/use-hashmodulo 
Use the hash modulo in the derivation outputs
 2020-12-16 12:48:44 +01:00
Maximilian Bosch
f890830b33
primops/fromJSON: add error position in case of parse error 
This makes it easier to track down where invalid JSON was passed to
`builtins.fromJSON`.
 2020-12-13 13:55:32 +01:00
Silvan Mosberger
bf98903967
Add ValueType checking functions for types that have the same NormalType 2020-12-12 03:31:50 +01:00
Silvan Mosberger
22ead43a0b
Use Value::normalType on all forced values instead of Value::type 2020-12-12 03:31:48 +01:00
regnat
bab1cda0e6 Use the hash modulo in the derivation outputs 
Rather than storing the derivation outputs as `drvPath!outputName` internally,
store them as `drvHashModulo!outputName` (or `outputHash!outputName` for
fixed-output derivations).

This makes the storage slightly more opaque, but enables an earlier
cutoff in cases where a fixed-output dependency changes (but keeps the
same output hash) − same as what we already do for input-addressed
derivations.
 2020-12-11 21:17:23 +01:00
John Ericson
2113ae2d85 Make drv hash modulo memo table thread-safe 
Let's get one step closer to the daemon not needing to fork.
 2020-11-19 16:50:06 +00:00
regnat
c092fa4702 Allow non-CA derivations to depend on CA derivations 2020-10-27 07:29:23 +01:00
Eelco Dolstra
cbb9862cd9
Merge pull request #3626 from W95Psp/master 
Make `functionArgs` primitive accept primops (fix #3624)
 2020-09-25 15:14:18 +02:00
Eelco Dolstra
e8e1d420f3 Don't include <regex> in header files 
This reduces compilation time by ~15 seconds (CPU time).

Issue #4045.
 2020-09-21 18:22:45 +02:00
Eelco Dolstra
10d1865f5f Remove corepkgs/derivation.nix 2020-09-17 09:41:02 +02:00
Eelco Dolstra
0066ef6c59 Fix doc generation 2020-09-16 16:56:28 +02:00
Eelco Dolstra
2eacc1bc00 builtins.toFile: Fix indentation 2020-09-16 14:18:46 +02:00
John Ericson
3a5cdd737c Rename Derivation::pathOpt to Derivation::path 
We no longer need the `*Opt` to disambiguate.
 2020-09-15 15:21:39 +00:00
John Ericson
5aed6f9b25 Document mkOutputString 2020-09-04 15:58:42 +00:00
John Ericson
ef278d00f9 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-09-01 18:01:48 +00:00
Eelco Dolstra
84f5cabbea Merge remote-tracking branch 'origin/master' into markdown 2020-08-31 14:24:26 +02:00
John Ericson
8017fe7487 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-28 19:59:14 +00:00
Eelco Dolstra
eb75282b8d
Merge pull request #3434 from Ericson2314/derivation-header-include-order 
Revise division of labor in deserialization of derivations
 2020-08-27 16:39:28 +02:00
Eelco Dolstra
4bf5faf416 Merge remote-tracking branch 'origin/master' into markdown 2020-08-25 19:47:34 +02:00
Eelco Dolstra
7a02865b94
Move import docs 2020-08-25 14:06:01 +02:00
Eelco Dolstra
2a2121d264
Use RegisterPrimOp for some undocumented primops 2020-08-25 11:25:01 +02:00
Eelco Dolstra
b8416779e3
Document some primops 2020-08-25 11:16:45 +02:00
Eelco Dolstra
a990f063ff
Move primop docs inline 
This makes them available to 'nix repl'.
 2020-08-24 14:31:10 +02:00
Eelco Dolstra
33b1679d75
Allow primops to have Markdown documentation 2020-08-24 13:16:02 +02:00
John Ericson
35e6288be1 writeDerivation just needs a plain store reference 2020-08-23 15:01:11 +00:00
John Ericson
3a7b330b64 "Downstream placeholders" should not be store paths 
Insead they should be opaque `/<hash>` like the placeholders we already
have.
 2020-08-21 19:35:35 +00:00
John Ericson
27a3f82c0b Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-20 18:28:17 +00:00
John Ericson
45a2f1baab Rename drv output querying functions, like master 
- `queryDerivationOutputMapAssumeTotal` -> `queryPartialDerivationOutputMap`
 - `queryDerivationOutputMapAssumeTotal` -> `queryDerivationOutputMap
 2020-08-20 18:14:12 +00:00
John Ericson
950ddfdb82 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-08-18 14:36:44 +00:00
Eelco Dolstra
1c8b550e34
Merge pull request #3917 from obsidiansystems/output-env-var-unconditional 
Simplify code as output env vars are unconditional
 2020-08-18 16:21:17 +02:00
John Ericson
3c8b5b6219 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-14 17:00:13 +00:00
Eelco Dolstra
13e49be660
Merge pull request #3875 from obsidiansystems/new-interface-for-path-pathOpt 
Offer a safer interface for path and pathOpt
 2020-08-14 17:19:19 +02:00
John Ericson
d3fa8c04c6 Simplify code as output env vars are unconditional 
Since the jsonObject unique ptr is reset to flush the string to make
`__json`, all these `!jsonObject` conditions will always be true.
 2020-08-11 01:13:26 +00:00
John Ericson
1b5c24662b Merge branch 'small-drv-serialize-cleanup' of github.com:obsidiansystems/nix into single-ca-drv-build 2020-08-10 01:57:54 +00:00
John Ericson
bcd0629c2e Remove name parameter from writeDerivation 
The name is now stored with the derivation itself.
 2020-08-10 01:35:59 +00:00
John Ericson
e913a2989f Squashed get CA derivations building 2020-08-07 19:51:55 +00:00
Carlo Nucera
1d2e80ddd6 Merge branch 'master' of github.com:NixOS/nix into new-interface-for-path-pathOpt 2020-08-05 15:45:33 -04:00
John Ericson
b3e73547a0
Update src/libexpr/primops.cc 
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
 2020-08-05 11:05:46 -04:00
John Ericson
92ad550e96 Merge remote-tracking branch 'obsidian/misc-ca' into derivation-primop-floating-output 2020-08-05 14:51:41 +00:00
John Ericson
b9ebe373bb Sed some names to perhaps avoid conflicts 2020-08-05 14:49:25 +00:00
John Ericson
e7b0847f2d Make names more consistent 2020-08-05 14:44:39 +00:00
John Ericson
03f4fafc27 Merge remote-tracking branch 'upstream/master' into misc-ca 2020-08-05 14:36:25 +00:00
John Ericson
9357512d73 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-08-01 19:38:35 +00:00
Matthew Bauer
cdc2386644 Make expectedHash optional in prim_path 
This fixes an error found in builtins.path that looks like:

store path mismatch in (possibly filtered) path added from '/private/tmp/nix-shell.CyXViH/nix-test/filter-source/filterin'

when no hash is specified
 2020-07-30 16:40:40 -05:00
Eelco Dolstra
3f6e88a552 unsigned long long -> uint64_t 2020-07-30 13:34:04 +02:00
Carlo Nucera
c318d398f3 Merge branch 'misc-ca' of github.com:obsidiansystems/nix into new-interface-for-path-pathOpt 2020-07-28 14:22:24 -04:00
Carlo Nucera
7ef1e3cd14 Use the new interface 2020-07-28 13:59:24 -04:00
John Ericson
951415b568 Require ca-derivations everywhere we create a CA derivation 
"create" as in read one in from a serialized form, or build one from
scratch in memory.
 2020-07-27 17:56:36 +00:00
John Ericson
e32a9e124b Merge branch 'misc-ca' of github.com:obsidiansystems/nix into derivation-primop-floating-output 2020-07-27 17:50:06 +00:00
John Ericson
7cf978440c Merge branch 'ca-derivation-data-types' of github.com:obsidiansystems/nix into misc-ca 2020-07-27 17:47:40 +00:00
John Ericson
43f2bd8dc5 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-27 16:13:57 +00:00
John Ericson
9423f64ee2 Parse CA derivations using new output variants 
We no longer need `ParsedDerivation` because everything libstore needs
to know about is in the `BasicDerivation` proper.
 2020-07-22 23:59:25 +00:00
Carlo Nucera
5cb840541b Merge branch 'multi-output-hashDerivationModulo' of github.com:Ericson2314/nix into misc-ca 2020-07-17 10:28:33 -04:00
Carlo Nucera
048e916f64 Merge branch 'master' of github.com:NixOS/nix into optional-derivation-output-storepath 2020-07-16 13:32:28 -04:00
John Ericson
5ea817dace Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-16 14:58:53 +00:00
Carlo Nucera
455bdee205 Merge branch 'master' of github.com:NixOS/nix into derivation-header-include-order 2020-07-15 17:58:30 -04:00
Carlo Nucera
d090562348 Merge branch 'master' of github.com:NixOS/nix into hash-always-has-type 2020-07-15 17:21:01 -04:00
Eelco Dolstra
832e111494 Merge remote-tracking branch 'origin/master' into flakes 2020-07-14 13:56:18 +02:00
Eelco Dolstra
c0dd05131e toStorePath(): Return a StorePath and the suffix 2020-07-13 16:25:48 +02:00
John Ericson
4415765385 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-13 03:01:44 +00:00
John Ericson
503b425690 DerivationOutputExtensional -> DerivationOutputInputAddressed 
Thanks @regnat for the great name.
 2020-07-12 15:56:20 +00:00
John Ericson
18152406ce String .drv suffix to create derivation name 2020-07-12 15:40:14 +00:00
John Ericson
13ec627e0a Set derivation name in dervationStrict 2020-07-12 03:03:12 +00:00
John Ericson
1c9bec226f Don't improperly assume path is store path 2020-07-12 02:38:03 +00:00
Matthew Bauer
a7884970c5 Fix DerivationOutputExtensional name 2020-07-09 11:37:18 -04:00
Matthew Bauer
8e0d0689be Only store hash of fixed derivation output 
we don’t need a full storepath for a fixedoutput derivation. So just
putting the ingestion method + the hash is sufficient.
 2020-07-08 19:11:39 -04:00
Matthew Bauer
af95a7c16b Add name to BasicDerivation 
We always have a name for BasicDerivation, since we have a derivation
store path that has a name.
 2020-07-08 15:38:01 -04:00
Eelco Dolstra
54712aaf8a Merge remote-tracking branch 'origin/master' into flakes 2020-07-06 16:40:10 +02:00
John Ericson
a38ab99d57 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-07-05 21:49:01 +00:00
Ben Burdette
3629b0585a don't include errpos for addErrorContext 2020-07-01 11:49:01 -06:00
Eelco Dolstra
50f13b06fb EvalCache: Store string contexts 2020-06-29 19:08:37 +02:00
Ben Burdette
023912def3 convenience form of addTrace 2020-06-24 13:46:25 -06:00
Ben Burdette
1d43a6e123 use plain errPos instead of nixCode; fix tests 2020-06-23 15:30:13 -06:00
John Ericson
98e5d1af03 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-06-23 17:03:37 +00:00
Ben Burdette
abe0552504 Merge remote-tracking branch 'upstream/master' into add-trace 2020-06-23 09:40:28 -06:00
John Ericson
8313f0e939 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-06-21 20:39:10 +00:00
John Ericson
fdeabf7160 Merge remote-tracking branch 'upstream/master' into multi-output-hashDerivationModulo 2020-06-21 16:43:17 +00:00
Carlo Nucera
e7a14118df WIP bug fixing 2020-06-19 16:50:28 -04:00
Ben Burdette
54e8f550c9 addErrorTrace 2020-06-19 13:44:08 -06:00
John Ericson
68294746ae Merge remote-tracking branch 'upstream/master' into no-hash-type-unknown 2020-06-19 17:53:34 +00:00
John Ericson
2f0e395c99 Merge remote-tracking branch 'me/no-stringly-typed-derivation-output' into validPathInfo-ca-proper-datatype 2020-06-19 15:26:59 +00:00
John Ericson
01dc8b0bab Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-19 14:59:05 +00:00
John Ericson
145d88cb2a Use designated initializers for DerivationOutputHash 2020-06-19 14:58:30 +00:00
John Ericson
237d88c97e FileSystemHash -> DerivationOutputHash 2020-06-19 14:47:10 +00:00
John Ericson
669c3992e8 Merge branch 'no-hash-type-unknown' into validPathInfo-temp 2020-06-18 22:33:07 +00:00
John Ericson
15abb2aa2b Revert the enum struct change 
Not a regular git revert as there have been many merges and things.
 2020-06-18 22:11:26 +00:00
John Ericson
bbbf3602a3 Merge branch 'enum-class' into no-hash-type-unknown 2020-06-18 22:11:19 +00:00
John Ericson
40526fbea5 Merge remote-tracking branch 'upstream/master' into enum-class 2020-06-18 21:38:15 +00:00
Ben Burdette
4d1a4f0217 addTrace 2020-06-18 15:25:26 -06:00
Eelco Dolstra
5771c8bbf2 Don't provide 'getFlake' if the 'flakes' feature is not enabled 
(cherry picked from commit 0a1d3c1dd3)
 2020-06-18 14:03:00 +02:00
Eelco Dolstra
2a61bbf77f Some backports from the flakes branch 2020-06-18 14:03:00 +02:00
John Ericson
517f5980e2 Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-17 04:58:43 +00:00
John Ericson
18493fd9c4 Move some Store functions from derivations.cc to store-api.cc 
This further continues with the dependency inverstion. Also I just went
ahead and exposed `parseDerivation`: it seems like the more proper
building block, and not a bad thing to expose if we are trying to be
less wedded to drv files on disk anywas.
 2020-06-17 04:30:16 +00:00
John Ericson
02928f76fd Merge remote-tracking branch 'upstream/master' into multi-output-hashDerivationModulo 2020-06-17 03:51:02 +00:00
Eelco Dolstra
29542865ce Remove StorePath::clone() and related functions 2020-06-16 22:20:18 +02:00
Eelco Dolstra
1fb762d11f Get rid of explicit ErrorInfo constructors 2020-06-15 14:06:58 +02:00
Eelco Dolstra
7a77762961 Merge branch 'errors-phase-2' of https://github.com/bburdette/nix 2020-06-15 11:46:31 +02:00
Eelco Dolstra
00fa7e2205
Merge pull request #3674 from matthewbauer/allow-empty-hash2 
Allow empty hash in derivations
 2020-06-12 18:18:12 +02:00
Matthew Bauer
b260c9ee03 Add newHashAllowEmpty helper function 
This replaces the copy&paste with a helper function in hash.hh.
 2020-06-12 10:11:16 -05:00
Eelco Dolstra
9f736dd89d Add Store::readDerivation() convenience function 2020-06-12 13:04:52 +02:00
Eelco Dolstra
045b07200c Remove Store::queryDerivationOutputNames() 
This function was used in only one place, where it could easily be
replaced by readDerivation() since it's not
performance-critical. (This function appears to have been modelled
after queryDerivationOutputs(), which exists only to make the garbage
collector faster.)
 2020-06-12 12:46:33 +02:00
Matthew Bauer
19aa892f20 Support empty hash in fetchers 
fetchTarball, fetchTree, and fetchGit all have *optional* hash attrs.
This means that we need to be careful with what we allow to avoid
accidentally making these defaults. When ‘hash = ""’ we assume the
empty hash is wanted.
 2020-06-09 11:10:54 -05:00
Matthew Bauer
762273f1fd Allow empty hash in derivations 
follow up of https://github.com/NixOS/nix/pull/3544

This allows hash="" so that it can be used for debugging purposes. For
instance, this gives you an error message like:

  warning: found empty hash, assuming you wanted 'sha256:0000000000000000000000000000000000000000000000000000'
  hash mismatch in fixed-output derivation '/nix/store/asx6qw1r1xk6iak6y6jph4n58h4hdmbm-nix':
    wanted: sha256:0000000000000000000000000000000000000000000000000000
    got:    sha256:0fpfhipl9v1mfzw2ffmxiyyzqwlkvww22bh9wcy4qrfslb4jm429
 2020-06-09 01:23:37 -05:00
John Ericson
450dcf2c1b Remove HashType::Unknown 
Instead, `Hash` uses `std::optional<HashType>`. In the future, we may
also make `Hash` itself require a known hash type, encoraging people to
use `std::optional<Hash>` instead.
 2020-06-02 15:52:13 +00:00
Ben Burdette
734283d636 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-05-29 09:51:37 -06:00
Carlo Nucera
6dd471ebf6 Fixing the result of merge 2020-05-28 12:14:36 -04:00
Carlo Nucera
4f597fb901 Merge branch 'master' of github.com:NixOS/nix into enum-class 2020-05-28 10:58:22 -04:00
John Ericson
5b4cd84bc2 Merge remote-tracking branch 'me/more-rust-ffi' into no-stringly-typed-derivation-output 2020-05-28 10:35:53 -04:00
Matthew Bauer
c66441a646 Rename some variables named “recursive” to “method” 
This is much less confusing since recursive is no longer a boolean.
 2020-05-27 13:21:26 -05:00
Carlo Nucera
d49e65ba9d Merge remote-tracking branch 'john-ericson/enum-FileIngestionMethod' into no-stringly-typed-derivation-output 2020-05-26 12:30:48 -04:00
Carlo Nucera
6d73c10041 Merge remote-tracking branch 'origin/master' into enum-FileIngestionMethod 2020-05-26 11:14:08 -04:00
Lucas Franceschino
b2748c6e99 Make functionArgs primitive accept primops 2020-05-25 19:07:38 +02:00
Ben Burdette
4daccb279c formatting 2020-05-14 10:28:17 -06:00
Ben Burdette
ef9dd9f9bc formatting and a few minor changes 2020-05-13 15:56:39 -06:00
Ben Burdette
b93c1bf3d6 fixes to merged code 2020-05-11 15:52:15 -06:00
Ben Burdette
59b1f5c701 Merge branch 'master' into errors-phase-2 2020-05-11 14:35:30 -06:00
Ben Burdette
55eb717148 add pos to errorinfo, remove from hints 2020-05-08 18:18:28 -06:00
Ben Burdette
e4fb9a3849 remove 'format' from Error constructor calls 2020-04-21 17:07:07 -06:00
Domen Kožar
25ed842725
Merge pull request #3502 from NixOS/more-pos 
pass Pos to forceValue to improve infinite recursion error
 2020-04-18 14:05:21 +02:00
Eelco Dolstra
fcd048a526 Use RootValue 2020-04-16 18:02:59 +02:00
Domen Kožar
b865b5b40c
pass Pos to forceValue to improve infinite recursion error 2020-04-16 12:32:07 +02:00
Domen Kožar
fc144242d5
Merge pull request #3447 from DavHau/improve-tofile-error-msg 
improve toFile error message when containing potential drv path
 2020-04-11 13:12:11 +02:00
DavHau
fc14213d2d improve toFile error message when containing potential drv path 2020-04-11 10:54:26 +00:00
Eelco Dolstra
9ed097db7b
Merge pull request #3468 from Infinisil/functionArgsPositions 
Make function arguments retain position info
 2020-04-08 15:29:39 +02:00
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
Silvan Mosberger
c34e96f7e0
Make function arguments retain position info 
This allows querying the location of function arguments. E.g.

  builtins.unsafeGetAttrPos "x" (builtins.functionArgs ({ x }: null))

  => { column = 57; file = "/home/infinisil/src/nix/inst/test.nix"; line = 1; }
 2020-04-02 05:52:52 +02:00
John Ericson
7e9a2718f0 s/outputHashRecursive/ingestionMethod/c 2020-03-30 22:36:15 +00:00
John Ericson
51afea3af2 Never cast FileIngestionMethod to or from boolean 2020-03-30 22:31:51 +00:00
John Ericson
bbbb7c1bc7 Use auto with some FileIngestionMethod local variables 2020-03-30 18:15:55 -04:00
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
John Ericson
225e62a56a Replace some bool recursive with a new FileIngestionMethod enum 2020-03-29 15:16:20 -04:00
John Ericson
87b32bab05 Use enum struct and drop prefixes 
This does a few enums; the rest will be gotten in subsequent commits.
 2020-03-29 11:23:15 -04:00
John Ericson
f1cf3ab870 hashDerivationModulo: Generalize for multiple fixed ouputs per drv 
See documentattion in header and comments in implementation for details.

This is actually done in preparation for floating ca derivations, not
multi-output fixed ca derivations, but the distinction doesn't yet
mattter.

Thanks @cole-h for finding and fixing a bunch of typos.
 2020-03-19 10:30:49 -04:00
Eelco Dolstra
9950cdec35 Move some corepkgs into the nix binary 2020-03-11 16:57:48 +01:00
Eelco Dolstra
401b5bc541
builtins.cache: Cache regular expressions 
The evaluator was spending about 1% of its time compiling a small
number of regexes over and over again.
 2020-03-04 11:44:33 +01:00
Eelco Dolstra
aef635da78 Fix derivation computation with __structuredAttrs and multiple outputs 
Fixes

  error: derivation '/nix/store/klivma7r7h5lndb99f7xxmlh5whyayvg-zlib-1.2.11.drv' has incorrect output '/nix/store/fv98nnx5ykgbq8sqabilkgkbc4169q05-zlib-1.2.11-dev', should be '/nix/store/adm7pilzlj3z5k249s8b4wv3scprhzi1-zlib-1.2.11-dev'
 2020-01-21 21:14:13 +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
2d6f1ddbb5
Remove builtins.valueSize 
Fixes #3246.
 2019-11-28 13:52:42 +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
99b73fb507
OCD performance fix: {find,count}+insert => insert 2019-10-09 16:06:29 +02:00
Eelco Dolstra
168a887916
Fix fetchTarball with chroot stores 
Fixes #2405.
 2019-10-01 07:51:06 +00:00
Bas van Dijk
89865144c3 Allow builtins.pathExists to check the existence of /nix/store paths 
This makes it consitent with builtins.readDir.
 2019-07-30 11:27:35 +02:00
Eelco Dolstra
f8b30338ac
Refactor downloadCached() interface 
(cherry picked from commit df3f5a78d5)
 2019-06-24 22:12:26 +02:00
Eelco Dolstra
dc29e9fb47
downloadCached: Return ETag 
(cherry picked from commit 529add316c)
 2019-06-24 21:58:33 +02:00
Daniel Schaefer
3f192ac80c Add builtins.hashFile 
For text files it is possible to do it like so:
`builtins.hashString "sha256" (builtins.readFile /tmp/a)`
but that doesn't work for binary files.

With builtins.hashFile any kind of file can be conveniently hashed.
 2019-05-03 17:23:36 +02:00
zimbatm
514b3c7f83
Add isPath primop 
this is added for completeness' sake since all the other possible
`builtins.typeOf` results have a corresponding `builtins.is<Type>`
 2019-03-24 11:36:49 +01:00
Eelco Dolstra
ef52ccf035
experimental/optional -> optional 2019-03-14 14:10:52 +01:00
Shea Levy
1d757292d0
Add builtins.getContext. 
This can be very helpful when debugging, as well as enabling complex
black magic like surgically removing a single dependency from a
string's context.
 2019-01-14 11:27:10 -05:00