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Author SHA1 Message Date
Profpatsch 38b29fb72c libstore/ssh: Improve error message on failing execvp 
If the `throw` is reached, this means that execvp into `ssh` wasn’t
successful. We can hint at a usual problem, which is a missing `ssh`
executable.

Test with:

```
env PATH= ./result/bin/nix-copy-closure --builders '' unusedhost
```

and the bash version with

```
env PATH= ./result/bin/nix-copy-closure --builders '' localhost
```
 2019-12-12 15:32:17 +01:00
Eelco Dolstra f800d450b7 Speed up StorePath::to_string() 
1.81% -> 0.56%
 2019-12-10 22:15:20 +01:00
Eelco Dolstra f64b58b45e Speed up base32::decode() 
From 1.03% to 0.19% of the runtime of 'nix-instantiate "<nixpkgs>" -A
texlive.combined.scheme-full --dry-run'.
 2019-12-10 22:06:05 +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 ebd89999c2 Add StorePath tests 2019-12-10 22:04:40 +01:00
Eelco Dolstra bca0afb943 Shut up about deprecated functions 2019-12-10 13:44:49 +01:00
Eelco Dolstra 9e565781c6 Shut up warnings 2019-12-10 13:37:23 +01:00
Eelco Dolstra 14aa0c3259 Use hyper directly instead of reqwest 2019-12-10 13:37:23 +01:00
Eelco Dolstra a6f0bef0a7 Update to async/await-enabled tokio 2019-12-10 13:37:23 +01:00
Eelco Dolstra 7f08975050 Add NAR parser 2019-12-10 13:37:23 +01:00
Eelco Dolstra 6317f0f7a0 StorePath improvements 2019-12-10 13:37:23 +01:00
Eelco Dolstra cce218f950 Add base32 encoder/decoder 2019-12-10 13:37:23 +01:00
Eelco Dolstra a1ff43045b Move stuff around 2019-12-10 13:37:23 +01:00
Eelco Dolstra ce3c41aef0 Drop some dependencies 2019-12-10 13:37:23 +01:00
Eelco Dolstra d832a355ea Use rustls 
In particular, this enables HTTP/2 support in reqwest, which is a lot
more efficient.
 2019-12-10 13:37:23 +01:00
Eelco Dolstra dd5d76e2ed Basic BinaryCacheStore implementation using async Rust 2019-12-10 13:37:23 +01:00
Eelco Dolstra 98ef11677c EvalState::callFunction(): Make FunctionCallTrace use less stack space 
The FunctionCallTrace object consumes a few hundred bytes of stack
space, even when tracing is disabled. This was causing stack overflows:

  $ nix-instantiate '<nixpkgs> -A texlive.combined.scheme-full --dry-run
  error: stack overflow (possible infinite recursion)

This is with the default stack size of 8 MiB.

Putting the object on the heap reduces stack usage to < 5 MiB.
 2019-12-10 13:32:30 +01:00
Eelco Dolstra 61cc9f34d2 Remove UserLock self-lock check 
This is no longer needed since we're not using POSIX locks anymore.
 2019-12-09 23:57:33 +01:00
Yorick f765e44123
downgrade required libarchive version (ubuntu 16.04) 2019-12-09 18:39:37 +07:00
Yorick 3663a8a7e9
release.nix: add libarchive to rpm and deb dependencies 2019-12-09 17:31:05 +07:00
Yorick b232eea40a
nix-rust: remove unused tar file code 2019-12-09 17:28:15 +07:00
Yorick eba82b7c88
further clean up libarchive code 2019-12-09 17:21:46 +07:00
puck 28ee687adf Clean up libarchive support 2019-12-07 18:12:21 +00:00
Yorick fe7ec70e6b
remove rust unpack_tarfile ffi 2019-12-07 23:28:31 +07:00
Yorick 1355554d12
code 'cleanup' 2019-12-07 23:23:11 +07:00
Yorick f54c168031
add wrapper function around libarchive to c++ errors 2019-12-07 23:10:27 +07:00
Yorick 232b390766
fixup! libarchive proof of concept 2019-12-07 23:00:37 +07:00
Yorick 9ff5f6492f
libarchive proof of concept 2019-12-07 22:35:14 +07:00
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 47a937d512 Show hash mismatch warnings in SRI format 
(cherry picked from commit 63c5c91cc0)
 2019-12-05 20:32:25 +01:00
Eelco Dolstra 0678e4d56a Move #include 
(cherry picked from commit 8beedd4486)
 2019-12-05 20:30:29 +01:00
Eelco Dolstra 79142cbbe1 Bindings: Add convenience method for requiring an attribute 
(cherry picked from commit fb692e5f7b)
 2019-12-05 20:29:15 +01:00
Eelco Dolstra 0d118ef0c9 Bindings::get(): Add convenience method 
This allows writing attribute lookups as

    if (auto name = value.attrs->get(state.sName))
      ...

(cherry picked from commit f216c76c56)
 2019-12-05 20:29:00 +01:00
Eelco Dolstra 50d483a2c1 Fix precompiled-headers generation 
It's now regenerated when util.hh changes, and is ordered after
config.h to fix a race.
 2019-12-05 20:26:24 +01:00
Eelco Dolstra 5e449b43ed Initialize Command::_name 
(cherry picked from commit d0a769cb06)
 2019-12-05 20:21:22 +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 092af3c826 Eliminate more pass-by-value in variadic calls 2019-12-05 19:58:52 +01:00
Eelco Dolstra 603b2f583c Revert "Make fmt() non-recursive" 
This reverts commit 2b761d5f50.

Also *really* make fmt() take arguments by reference.
 2019-12-05 19:58:49 +01:00
Eelco Dolstra 334b8f8af1 fmt(): Pass arguments by reference rather than by value 2019-12-05 17:40:46 +01:00
Eelco Dolstra f4b9495854
Merge pull request #3255 from Profpatsch/doc-manual-allowSubstitutes-add-note 
doc/manual: add note to `allowSubstitutes` advanced attribute
 2019-12-04 12:46:31 +01:00
Eelco Dolstra c1d18050b4 Disable recursive Nix test on macOS 
https://hydra.nixos.org/build/107724274
 2019-12-03 19:19:14 +01:00
Profpatsch 7923e22276 doc/manual: add ids to the advanced attribute definitions 
This makes it possible to reference single attribute definitions,
for pointing people to their exact definition.
 2019-12-03 18:22:27 +01:00
Profpatsch 7395e091c5 doc/manual: add note to allowSubstitutes advanced attribute 2019-12-03 18:01:45 +01:00
Eelco Dolstra e59e2b2951 Merge branch 'pkg-config-static' of https://github.com/matthewbauer/nix 2019-12-02 13:20:02 +01:00
Eelco Dolstra ac2bc721d8 Merge remote-tracking branch 'origin/recursive-nix' 2019-12-02 12:34:46 +01:00
Graham Christensen ec364582eb
Merge pull request #3252 from bwignall/typo 
Fix typos
 2019-11-30 19:05:43 -05:00
Brian Wignall 8737980e75 Fix typos 2019-11-30 19:04:14 -05:00