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path: root/src/libutil/util.hh
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2018-02-26nix run: Fix segfault on macOSEelco Dolstra
Note that clearenv() is not available on macOS. Fixes #1907.
2018-02-07Improve filtering of ANSI escape sequences in build logsEelco Dolstra
All ANSI sequences except color setting are now filtered out. In particular, terminal resets (such as from NixOS VM tests) are filtered out. Also, fix the completely broken tab character handling.
2018-01-16Add pure evaluation modeEelco Dolstra
In this mode, the following restrictions apply: * The builtins currentTime, currentSystem and storePath throw an error. * $NIX_PATH and -I are ignored. * fetchGit and fetchMercurial require a revision hash. * fetchurl and fetchTarball require a sha256 attribute. * No file system access is allowed outside of the paths returned by fetch{Git,Mercurial,url,Tarball}. Thus 'nix build -f ./foo.nix' is not allowed. Thus, the evaluation result is completely reproducible from the command line arguments. E.g. nix build --pure-eval '( let nix = fetchGit { url = https://github.com/NixOS/nixpkgs.git; rev = "9c927de4b179a6dd210dd88d34bda8af4b575680"; }; nixpkgs = fetchGit { url = https://github.com/NixOS/nixpkgs.git; ref = "release-17.09"; rev = "66b4de79e3841530e6d9c6baf98702aa1f7124e4"; }; in (import (nix + "/release.nix") { inherit nix nixpkgs; }).build.x86_64-linux )' The goal is to enable completely reproducible and traceable evaluation. For example, a NixOS configuration could be fully described by a single Git commit hash. 'nixos-rebuild' would do something like nix build --pure-eval '( (import (fetchGit { url = file:///my-nixos-config; rev = "..."; })).system ') where the Git repository /my-nixos-config would use further fetchGit calls or Git externals to fetch Nixpkgs and whatever other dependencies it has. Either way, the commit hash would uniquely identify the NixOS configuration and allow it to reproduced.
2017-11-01fetchMercurial: Don't fetch hashes we already haveEelco Dolstra
2017-10-30builtins.fetchgit: Support importing a working treeEelco Dolstra
For example, you can write src = fetchgit ./.; and if ./. refers to an unclean working tree, that tree will be copied to the Nix store. This removes the need for "cleanSource".
2017-10-25Pass lists/attrsets to bash as (associative) arraysEelco Dolstra
2017-09-08ThreadPool: On exception, interrupt the other worker threadsEelco Dolstra
2017-08-25Handle SIGWINCHEelco Dolstra
2017-08-18Remove unused decodeOctalEscapedAndy Wingo
Besides being unused, this function has a bug that it will incorrectly decode the path component Ubuntu\04016.04.2\040LTS\040amd64 as "Ubuntu.04.2 LTS amd64" instead of "Ubuntu 16.04.2 LTS amd64".
2017-08-16Progress indicator: Show number of active itemsEelco Dolstra
2017-08-09Use /proc/self/fd to efficiently close all FDs on LinuxEelco Dolstra
Issue #1506.
2017-05-16Improve progress indicatorEelco Dolstra
2017-05-05Figure out the user's home directory if $HOME is not setEelco Dolstra
2017-04-25nix repl: Use $XDG_DATA_HOME for the readline historyEelco Dolstra
2017-04-21add helper function to set 'interruptThrown'David McFarland
this fixes a linker failure on cygwin 64 due to some bad interaction between tls and shared libraries. see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64697
2017-04-20Read per-user settings from ~/.config/nix/nix.confEelco Dolstra
2017-03-21Move istringstream_nocopy to a separate fileEelco Dolstra
2017-03-20Merge branch 'darwin-s3-binary-cache-store' of https://github.com/shlevy/nixEelco Dolstra
2017-03-16Remove "killing process <pid>" messagesEelco Dolstra
They convey no useful information.
2017-03-15runProgram(): Distinguish between empty input and no inputEelco Dolstra
For example, if we call brotli with an empty input, it shouldn't read from the caller's stdin.
2017-03-08Add missing header <sstream>Adrien Devresse
2017-03-06istringstream_nocopy: Implement in a standards-compliant way.Shea Levy
Fixes the problem mentioned in e6a61b8da788efbbbb0eb690c49434b6b5fc9741 See #1135
2017-02-16Support netrc in <nix/fetchurl.nix>Eelco Dolstra
This allows <nix/fetchurl.nix> to fetch private Git/Mercurial repositories, e.g. import <nix/fetchurl.nix> { url = https://edolstra@bitbucket.org/edolstra/my-private-repo/get/80a14018daed.tar.bz2; sha256 = "1mgqzn7biqkq3hf2697b0jc4wabkqhmzq2srdymjfa6sb9zb6qs7"; } where /etc/nix/netrc contains: machine bitbucket.org login edolstra password blabla... This works even when sandboxing is enabled. To do: add unpacking support (i.e. fetchzip functionality).
2017-02-01Restore default signal handling in child processesEelco Dolstra
In particular, this fixes Ctrl-C in nix-shell sessions.
2017-01-26Fix interrupt handlingEelco Dolstra
2017-01-19Merge pull request #981 from shlevy/build-remote-c++Eelco Dolstra
build-remote: Implement in C++
2017-01-19Kill builds when we get EOF on the log FDEelco Dolstra
This closes a long-time bug that allowed builds to hang Nix indefinitely (regardless of timeouts) simply by doing exec > /dev/null 2>&1; while true; do true; done Now, on EOF, we just send SIGKILL to the child to make sure it's really gone.
2017-01-19CleanupEelco Dolstra
2017-01-17Handle SIGINT etc. via a sigwait() signal handler threadEelco Dolstra
This allows other threads to install callbacks that run in a regular, non-signal context. In particular, we can use this to signal the downloader thread to quit. Closes #1183.
2017-01-16AutoCloseDir: Use std::unique_ptrEelco Dolstra
2017-01-16AutoDeleteArray -> std::unique_ptrEelco Dolstra
Also, switch to C++14 for std::make_unique.
2016-12-08Fix S3BinaryCacheStoreEelco Dolstra
It failed with AWS error uploading ‘6gaxphsyhg66mz0a00qghf9nqf7majs2.ls.xz’: Unable to parse ExceptionName: MissingContentLength Message: You must provide the Content-Length HTTP header. possibly because the istringstream_nocopy introduced in 0d2ebb4373e509521f27a6e8f16bfd39d05b2188 doesn't supply the seek method that the AWS library expects. So bring back the old version, but only for S3BinaryCacheStore.
2016-11-26Revert "Get rid of unicode quotes (#1140)"Eelco Dolstra
This reverts commit f78126bfd6b6c8477fcdbc09b2f98772dbe9a1e7. There really is no need for such a massive change...
2016-11-25Get rid of unicode quotes (#1140)Guillaume Maudoux
2016-11-17TypoEelco Dolstra
2016-11-17Fix binary-cache-store buildShea Levy
2016-11-17istringstream_nocopy: Implement in a standards-compliant wayShea Levy
Fixes #1135.
2016-11-16S3BinaryCacheStore:: Eliminate a string copy while uploadingEelco Dolstra
This cuts hydra-queue-runner's peak memory usage by about a third.
2016-11-10build-remote: Implement in C++Shea Levy
2016-10-12Add some functions needed by hydraEelco Dolstra
2016-09-21nix-build, nix-shell: Don't print error message if nix-store/nix-instantiate ↵Eelco Dolstra
fails
2016-09-20TweakEelco Dolstra
2016-09-20nix-shell: Fix $PATH handling in the impure caseEelco Dolstra
We were passing "p=$PATH" rather than "p=$PATH;", resulting in some invalid shell code. Also, construct a separate environment for the child rather than overwriting the parent's.
2016-09-16Make computeFSClosure() single-threaded againEelco Dolstra
The fact that queryPathInfo() is synchronous meant that we needed a thread for every concurrent binary cache lookup, even though they end up being handled by the same download thread. Requiring hundreds of threads is not a good idea. So now there is an asynchronous version of queryPathInfo() that takes a callback function to process the result. Similarly, enqueueDownload() now takes a callback rather than returning a future. Thus, a command like nix path-info --store https://cache.nixos.org/ -r /nix/store/slljrzwmpygy1daay14kjszsr9xix063-nixos-16.09beta231.dccf8c5 that returns 4941 paths now takes 1.87s using only 2 threads (the main thread and the downloader thread). (This is with a prewarmed CloudFront.)
2016-09-16printMsg(): Don't check for interruptsEelco Dolstra
Having the logger function potentially throw exceptions is Heisenbuggy.
2016-09-14Add a toLower utility functionEelco Dolstra
2016-09-14Move some .drv parsing functions out of utilEelco Dolstra
2016-07-11Modernize AutoCloseFDShea Levy
2016-05-04Cleanup: Remove singleton()Eelco Dolstra
2016-04-29Support Git repos in the Nix pathEelco Dolstra
E.g. $ nix-build -I nixpkgs=git://github.com/NixOS/nixpkgs '<nixpkgs>' -A hello This is not extremely useful yet because you can't specify a branch/revision.