Commit graph

10087 commits

Author SHA1 Message Date
Eelco Dolstra af373c2ece Add deprecated aliases for renamed commands 2020-12-03 22:45:44 +01:00
Matthew Bauer 4b9acf4e21 Use posix_spawn_setbinpref_np to advise which architecture to run
When running universal binaries like /bin/bash, Darwin XNU will choose
which architecture of the binary to use based on "binary preferences".
This change sets that to the current platform for aarch64 and x86_64
builds. In addition it now uses posix_spawn instead of the usual
execve. Note, that this does not prevent the other architecture from
being run, just advises which to use.

Unfortunately, posix_spawnattr_setbinpref_np does not appear to be
inherited by child processes in x86_64 Rosetta 2 translations, meaning
that this will not always work as expected.

For example:

  {
    arm = derivation {
      name = "test";
      system = "aarch64-darwin";
      builder = "/bin/bash";
      args = [ "-e" (builtins.toFile "test" ''
        set -x
        /usr/sbin/sysctl sysctl.proc_translated
        /usr/sbin/sysctl sysctl.proc_native
        [ "$(/usr/bin/arch)" = arm64 ]
        /usr/bin/touch $out
      '') ];
    };
    rosetta = derivation {
      name = "test";
      system = "x86_64-darwin";
      builder = "/bin/bash";
      args = [ "-e" (builtins.toFile "test" ''
        set -x
        /usr/sbin/sysctl sysctl.proc_translated
        /usr/sbin/sysctl sysctl.proc_native
        [ "$(/usr/bin/arch)" = i386 ]
        echo It works!
        /usr/bin/touch $out
      '') ];
    };
  }

`arm' fails on x86_64-compiled Nix, but `arm' and `rosetta' succeed on
aarch64-compiled Nix. I suspect there is a way to fix this since:

  $ /usr/bin/arch -arch x86_64 /bin/bash \
    -c '/usr/bin/arch -arch arm64e /bin/bash -c /usr/bin/arch'
  arm64

seems to work correctly. We may need to wait for Apple to update
system_cmds in opensource.apple.com to find out how though.
2020-12-03 15:41:59 -06:00
Matthew Bauer 9b1824ecbd Add extraPlatforms for Rosetta 2 macOS
macOS systems with ARM64 can utilize a translation layer at
/Library/Apple/usr/libexec/oah to run x86_64 binaries. This change
makes Nix recognize that and it to "extra-platforms". Note that there
are two cases here since Nix could be built for either x86_64 or
aarch64. In either case, we can switch to the other architecture.
Unfortunately there is not a good way to prevent aarch64 binaries from
being run in x86_64 contexts or vice versa - programs can always
execute programs for the other architecture.
2020-12-03 15:41:43 -06:00
Eelco Dolstra 0c15ae5d4b Add FIXME 2020-12-03 20:31:45 +01:00
Eelco Dolstra ef583303f0 Move NAR-related commands to 'nix nar' 2020-12-03 18:09:02 +01:00
Eelco Dolstra 79c1967ded Introduce 'nix store' command 2020-12-03 18:07:13 +01:00
Eelco Dolstra 5781f45c46 Allow registering subcommands of subcommands 2020-12-03 17:55:55 +01:00
Eelco Dolstra b2d6c6161e Move 'nix hash-*' and 'nix to-*' to 'nix hash'
From the 'nix' UX review.
2020-12-03 17:55:55 +01:00
Eelco Dolstra 8ad2c9c4b9 Remove 'dist' target
We're not producing source tarballs anymore so this has been
bitrotting.
2020-12-03 16:17:58 +01:00
Eelco Dolstra 1b0ca3866b nix add-to-store: Move markdown docs into a separate file 2020-12-03 16:17:58 +01:00
Eelco Dolstra c3c858ac6d Make doc() return arbitrary Markdown rather than the contents of the "Description" section
Thus we can return the examples section (and any other sections) from
doc() and don't need examples() anymore.
2020-12-03 16:17:58 +01:00
Eelco Dolstra 0bd060f23a
Merge pull request #4308 from tweag/properly-test-early-cutoff
Properly test the early cutoff for CA derivations
2020-12-03 14:45:29 +01:00
Eelco Dolstra 4f25644a13
Merge pull request #4304 from NixOS/separate-manpages
Separate manpages for 'nix' subcommands
2020-12-03 13:38:29 +01:00
regnat 8ad72b1f1c Properly test early cutoff with CA derivations
Build things with a different seed each time to make sure that it works
despite the different drvs
2020-12-03 13:31:07 +01:00
regnat 0afab668fa Don't fail early when -j0 is passed
If the build closure contains some CA derivations, then we can't know
ahead-of-time that we won't build anything as early-cutoff might come-in
at a laster stage
2020-12-03 13:24:36 +01:00
Eelco Dolstra 7cb341ceb5
Merge pull request #4307 from matthewbauer/update-config-guess
Update config.guess & config.sub for proper arm64 macOS detection
2020-12-03 10:46:06 +01:00
Matthew Bauer 94f359525e Update config.guess for proper arm64 macOS detection
This fixes results for arm64 macOS so config.guess now reports:

  aarch64-apple-darwin20.1.0

instead of

  arm-apple-darwin20.1.0
2020-12-02 19:14:34 -06:00
Matthew Bauer addf9f4ede Call it aarch64-darwin instead of arm64-darwin
gnu-config standardized on aarch64 for machine name so host_cpu part
of $system will always be aarch64. That means system will be
aarch64-darwin too.

uname however could report either “aarch64” (if gnu coreutils) or
“arm64” (if apple’s uname). We should support both for compatiblity
here.
2020-12-02 19:05:02 -06:00
Matthew Bauer b0de7b2016 Check for rosetta 2 support before installing 2020-12-02 18:35:48 -06:00
Eelco Dolstra 6ed09cb8c2
Merge pull request #4301 from imalsogreg/tokens-doc-fix
fix tokens documentation
2020-12-02 23:42:36 +01:00
Eelco Dolstra e2efc63979 Put examples first in the manpages 2020-12-02 23:23:23 +01:00
Eelco Dolstra 72428e38d9 Generate separate manpages for each nix subcommand 2020-12-02 23:23:23 +01:00
Eelco Dolstra df552a2645 nix eval: Add option to write a directory
This is useful for generating the nix manpages, but it may have other
applications (like generating configuration files without a Nix store).
2020-12-02 23:23:23 +01:00
Eelco Dolstra 148608ba6d Add 'nix help' 2020-12-02 23:23:23 +01:00
Rok Garbas 44da19f73c
Adds Nix CLI Guideline to docs
As we are working towards Nix 3.0 we want to make sure that we make a
huge step forward in Nix's user experience. And once 3.0 is out of the
door we need to make sure that all future commands and features keep up
the standard of user experience.

This PR adds a CLI guideline document to the Nix documentation. Consider
this document a good starting point and a checklist when somebody will
be (re)implementing commands.

Clearly this guideline does nothing to improve user experience on its
own and can only be useful as long as it is going to be read and
cared for. But it is a first step into that direction.
2020-12-02 17:00:32 +01:00
Greg Hale d8fc1bb7b0 fix tokens documentation 2020-12-02 10:15:18 -05:00
Eelco Dolstra 9daf713bcb
Merge pull request #4300 from tweag/remove-unknown-pragma-warning
Remove `unknown pragma` gcc warning
2020-12-02 15:22:00 +01:00
regnat 0d9e1af695 Remove an unknown pragma gcc warning 2020-12-02 14:33:20 +01:00
regnat a8a96dbaf8 Add forgotten override annotation 2020-12-02 14:23:38 +01:00
Eelco Dolstra 1b79b5b983 read(): Use char * instead of unsigned char *
This gets rid of some pointless casts.
2020-12-02 14:17:27 +01:00
Eelco Dolstra faa31f4084 Sink: Use std::string_view 2020-12-02 14:17:27 +01:00
Eelco Dolstra aa68486112 writeFull/writeFile: Use std::string_view 2020-12-02 14:17:27 +01:00
Eelco Dolstra e5cf501c77
Merge pull request #4284 from tweag/fixed-output-depending-on-ca
Allow fixed-output derivations to depend on (floating) content-addressed ones
2020-12-01 20:25:41 +01:00
Eelco Dolstra 5a6ddb3de1
Merge pull request #4297 from tweag/fix-clang-warnings
shut up clang warnings
2020-12-01 15:48:52 +01:00
regnat 438977731c shut up clang warnings
- Fix some class/struct discrepancies
- Explicit the overloading of `run` in the `Cmd*` classes
- Ignore a warning in the generated lexer
2020-12-01 15:04:03 +01:00
Eelco Dolstra 88798613ee replaceStrings(): Use std::string_view 2020-12-01 13:45:43 +01:00
Eelco Dolstra c0d1354b7d Macro hygiene 2020-12-01 13:45:06 +01:00
Eelco Dolstra 3b7e00ce22 Move primeCache() to Worker::run()
We need the missing path info to communicate the worker's remaining
goals to the progress bar.
2020-12-01 13:44:48 +01:00
Eelco Dolstra 5927624473 Lower verbosity for 'Failed to find a machine' message 2020-12-01 13:43:36 +01:00
Eelco Dolstra e224c16d28 Macro hygiene 2020-12-01 13:43:33 +01:00
regnat 9bd8184f1f Allow fixed-output derivations to depend on (floating) content-addressed ones
Fix an overlook of https://github.com/NixOS/nix/pull/4056
2020-11-27 15:39:24 +01:00
Eelco Dolstra 05d9442f68 builtins.fetchGit: Fix shortRev attribute for dirty trees 2020-11-26 21:45:28 +01:00
Eelco Dolstra 2458270b69
Merge pull request #4094 from martinetd/btrfs
preallocateContents option: disable by default
2020-11-26 15:01:43 +01:00
Dominique Martinet 1fd13d67e8 archive: disable preallocate-contents by default
using fallocate() to preallocate files space does more harm than good:
 - breaks compression on btrfs
 - has been called "not the right thing to do" by xfs developers
(because delayed allocation that most filesystems implement leads to smarter
allocation than what the filesystem needs to do if we upfront fallocate files)
2020-11-26 14:26:57 +01:00
Eelco Dolstra 8252a44e96 Move to separate file 2020-11-26 13:16:36 +01:00
Eelco Dolstra 9a586e34ac Record trusted/untrusted settings in ~/.local/share/nix 2020-11-26 13:11:07 +01:00
Eelco Dolstra 0287f83057 Ask for confirmation before allowing flake Nix configuration settings 2020-11-26 12:37:23 +01:00
regnat 13c557fe82 fix the hash rewriting for ca-derivations 2020-11-25 11:33:00 +01:00
Lily Ballard 437189e446 Escape filename given to nix-shell in shebang mode
This prevents spaces or other metacharacters from causing nix-shell to
execute the wrong path.

Fixes #4229.
2020-11-24 15:08:37 -08:00
Eelco Dolstra 605bacdc92
Merge pull request #4276 from B4dM4n/macos-sandbox-build
Fix macOS sandbox build
2020-11-23 18:00:35 +01:00