~cnx/guix - Personal Guix development branches

Age	Commit message (Collapse)	Author
2012-08-12	Add some more evaluations stats	Eelco Dolstra

2012-08-12	Add some basic profiling support to the evaluator	Eelco Dolstra
	Setting the environment variable NIX_COUNT_CALLS to 1 enables some basic profiling in the evaluator. It will count calls to functions and primops as well as evaluations of attributes. For example, to see where evaluation of a NixOS configuration spends its time: $ NIX_SHOW_STATS=1 NIX_COUNT_CALLS=1 ./src/nix-instantiate/nix-instantiate '<nixos>' -A system --readonly-mode ... calls to 39 primops: 239532 head 233962 tail 191252 hasAttr ... calls to 1595 functions: 224157 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/lists.nix:17:19' 221767 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/lists.nix:17:14' 221767 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/lists.nix:17:10' ... evaluations of 7088 attributes: 167377 undefined position 132459 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/attrsets.nix:119:41' 47322 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/attrsets.nix:13:21' ...
2012-08-07	Don't warn about maximum link count exceeded on 0-byte files	Eelco Dolstra

2012-08-05	Handle amount of disk space saved by hard linking being negative	Eelco Dolstra
	Fixes bogus messages like "currently hard linking saves 17592186044416.00 MiB".
2012-08-05	Fix race condition when two processes create a hard link to a file in .links	Eelco Dolstra
	This is a problem because one process may set the immutable bit before the second process has created its link. Addressed random Hydra failures such as: error: cannot rename `/nix/store/.tmp-link-17397-1804289383' to `/nix/store/rsvzm574rlfip3830ac7kmaa028bzl6h-nixos-0.1pre-git/upstart-interface-version': Operation not permitted
2012-08-05	Fix race condition when two processes create the same link in /nix/store/.links	Eelco Dolstra

2012-08-01	Count bytes freed deleting unused links	Eelco Dolstra

2012-08-01	Drop the block count in the garbage collector	Eelco Dolstra

2012-08-01	nix-store --gc: Make ‘--max-freed 0’ do the right thing	Eelco Dolstra
	That is, delete almost nothing (it will still remove unused links from /nix/store/.links).
2012-08-01	removeUnusedLinks(): Print stats on disk space saved by hard linking	Eelco Dolstra

2012-08-01	Doh	Eelco Dolstra

2012-08-01	Make ‘nix-store --optimise’ interruptible	Eelco Dolstra

2012-07-30	Manual: Remove reference to non-existent -I option	Eelco Dolstra

2012-07-29	Document the --option flag	Eelco Dolstra
	Pointed out by Daniel Santa Cruz on IRC.
2012-07-26	Set permissions on temporary build directories to 0700	Eelco Dolstra
	Fixes #39.
2012-07-25	nix-profile.sh: Don't set NIX_REMOTE on single user installations	Eelco Dolstra
	Commit 6a214f3e06fa1c5f0a4d40e555f14d87691af297 reused the NixOS environment initialisation for nix-profile.sh, but this is inappropriate on systems that don't have multi-user support enabled.
2012-07-25	Subscribe to the Nixpkgs rather than NixOS channel	Eelco Dolstra

2012-07-25	prim_import: When importing .drvs, allocate the intermediate attrset on the ↵	Shea Levy
	heap just in case it escapes the stack frame.
2012-07-25	Turn tests back on	Shea Levy

2012-07-25	import: If the path is a valid .drv file, parse it and generate a derivation ↵	Shea Levy
	attrset. The generated attrset has drvPath and outPath with the right string context, type 'derivation', outputName with the right name, all with a list of outputs, and an attribute for each output. I see three uses for this (though certainly there may be more): * Using derivations generated by something besides nix-instantiate (e.g. guix) * Allowing packages provided by channels to be used in nix expressions. If a channel installed a valid deriver for each package it provides into the store, then those could be imported and used as dependencies or installed in environment.systemPackages, for example. * Enable hydra to be consistent in how it treats inputs that are outputs of another build. Right now, if an input is passed as an argument to the job, it is passed as a derivation, but if it is accessed via NIX_PATH (i.e. through the <> syntax), then it is a path that can be imported. This is problematic because the build being depended upon may have been built with non-obvious arguments passed to its jobset file. With this feature, hydra can just set the name of that input to the path to its drv file in NIX_PATH
2012-07-25	Disable tests temporarily	Shea Levy

2012-07-23	Handle platforms that don't support linking to a symlink	Eelco Dolstra
	E.g. Darwin doesn't allow this.
2012-07-23	Unlink the right file	Eelco Dolstra

2012-07-23	Add a test for Nix store optimisation	Eelco Dolstra

2012-07-23	Garbage collect unused links in /nix/store/.links	Eelco Dolstra
	Incremental optimisation requires creating links in /nix/store/.links to all files in the store. However, this means that if we delete a store path, no files are actually deleted because links in /nix/store/.links still exists. So we need to check /nix/store/.links for files with a link count of 1 and delete them.
2012-07-23	Automatically optimise the Nix store when a new path is added	Eelco Dolstra
	Auto-optimisation is enabled by default. It can be turned off by setting auto-optimise-store to false in nix.conf.
2012-07-23	optimiseStore(): Use a content-addressed file store in /nix/store/.links	Eelco Dolstra
	optimiseStore() now creates persistent, content-addressed hard links in /nix/store/.links. For instance, if it encounters a file P with hash H, it will create a hard link P' = /nix/store/.link/<H> to P if P' doesn't already exist; if P' exist, then P is replaced by a hard link to P'. This is better than the previous in-memory map, because it had the tendency to unnecessarily replace hard links with a hard link to whatever happened to be the first file with a given hash it encountered. It also allows on-the-fly, incremental optimisation.
2012-07-23	nix-build: Support the ‘-’ argument to build an expression from stdin	Eelco Dolstra

2012-07-23	Use lutimes() if available to canonicalise the timestamp of symlinks	Eelco Dolstra
	Also use utimes() instead of utime() if lutimes() is not available.
2012-07-18	Bump version	Eelco Dolstra

2012-07-18	Remove RPM builds that don't evaluate	Eelco Dolstra

2012-07-18	Use "#pragma once" to prevent repeated header file inclusion	Eelco Dolstra

2012-07-18	Set release date	Eelco Dolstra

2012-07-17	Add function queryPathFromHashPart()	Eelco Dolstra
	To implement binary caches efficiently, Hydra needs to be able to map the hash part of a store path (e.g. "gbg...zr7") to the full store path (e.g. "/nix/store/gbg...kzr7-subversion-1.7.5"). (The binary cache mechanism uses hash parts as a key for looking up store paths to ensure privacy.) However, doing a search in the Nix store for /nix/store/<hash>* is expensive since it requires reading the entire directory. queryPathFromHashPart() prevents this by doing a cheap database lookup.
2012-07-17	queryPathInfo(): return hash in base-32 if desired	Eelco Dolstra
	Cherry-picked from the no-manifests branch.
2012-07-17	Return an exit code of 100 for cached failed builds	Eelco Dolstra
	Exit code 100 should be returned for all permanent failures. This includes cached failures. Fixes #34.
2012-07-17	Remove dead code	Eelco Dolstra

2012-07-17	Manual: Don't claim we support Cygwin	Eelco Dolstra

2012-07-17	Update Nix 1.1 release notes	Eelco Dolstra

2012-07-17	Allow disabling log compression	Eelco Dolstra

2012-07-12	builtins.storePath: resolve symlinks	Eelco Dolstra
	Needed for Charon/Hydra interaction.
2012-07-09	Pass --insecure to curl so that https works	Eelco Dolstra

2012-07-09	Inline fetchurl.sh	Eelco Dolstra

2012-07-09	Add a test for the fetchurl function	Eelco Dolstra

2012-07-09	Remove obsolete comment	Shea Levy

2012-07-09	corepkgs/fetchurl: Build locally and outside of the chroot	Shea Levy

2012-07-09	corepkgs/fetchurl: the 'system' argument can be optional	Shea Levy

2012-07-09	corepkgs: distribute fetchurl files	Shea Levy

2012-07-09	corepkgs/fetchurl: Call the shell directly instead of using the shebang	Shea Levy

2012-07-09	corepkgs/fetchurl.sh: Use config.nix's curl	Shea Levy