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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
a045f93396 Temporarily revert to using 'tar' until we have gzip support 2019-12-12 15:07:31 +01:00
Eelco Dolstra
ecb3a1afa2 Merge remote-tracking branch 'origin/master' into flakes 2019-12-11 14:53:30 +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 van Pelt
f765e44123
downgrade required libarchive version (ubuntu 16.04) 2019-12-09 18:39:37 +07:00
Yorick van Pelt
3663a8a7e9
release.nix: add libarchive to rpm and deb dependencies 2019-12-09 17:31:05 +07:00
Yorick van Pelt
b232eea40a
nix-rust: remove unused tar file code 2019-12-09 17:28:15 +07:00
Yorick van Pelt
eba82b7c88
further clean up libarchive code 2019-12-09 17:21:46 +07:00
Puck Meerburg
28ee687adf Clean up libarchive support 2019-12-07 18:12:21 +00:00
Yorick van Pelt
fe7ec70e6b
remove rust unpack_tarfile ffi 2019-12-07 23:28:31 +07:00
Yorick van Pelt
1355554d12
code 'cleanup' 2019-12-07 23:23:11 +07:00
Yorick van Pelt
f54c168031
add wrapper function around libarchive to c++ errors 2019-12-07 23:10:27 +07:00
Yorick van Pelt
232b390766
fixup! libarchive proof of concept 2019-12-07 23:00:37 +07:00
Yorick van Pelt
9ff5f6492f
libarchive proof of concept 2019-12-07 22:35:14 +07:00
Eelco Dolstra
ab88f4bbd4 Merge remote-tracking branch 'origin/master' into flakes 2019-12-05 20:53:32 +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
048ef27326 Typo 2019-12-05 20:34:34 +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
90d2cf6ff9 Fix evaluation 2019-12-04 01:04:40 +01:00
Eelco Dolstra
1789c56f43 Fix macOS build 
https://hydra.nixos.org/build/107716759
 2019-12-04 00:36:04 +01:00
Eelco Dolstra
c3c23a52ee Merge remote-tracking branch 'origin/master' into flakes 2019-12-04 00:31:09 +01:00