/scripts/

Age	Commit message (Collapse)	Author
2021-11-16	daemon: Do not deduplicate files smaller than 8 KiB.	Ludovic Courtès
	Files smaller than 8 KiB typically represent ~70% of the entries in /gnu/store/.links but only contribute to ~4% of the space savings afforded by deduplication. Not considering these files for deduplication speeds up file insertion in the store and, more importantly, leaves 'removeUnusedLinks' with fewer entries to traverse, thereby speeding it up proportionally. Partly fixes <https://issues.guix.gnu.org/24937>. * config-daemon.ac: Remove symlink hard link check and CAN_LINK_SYMLINK definition. * guix/store/deduplication.scm (%deduplication-minimum-size): New variable. (deduplicate)[loop]: Do not recurse when FILE's size is below %DEDUPLICATION-MINIMUM-SIZE. (dump-port): New procedure. (dump-file/deduplicate)[hash]: Turn into... [dump-and-compute-hash]: ... this thunk. Call 'deduplicate' only when SIZE is greater than %DEDUPLICATION-MINIMUM-SIZE; otherwise call 'dump-port'. * nix/libstore/gc.cc (LocalStore::removeUnusedLinks): Drop files where st.st_size < deduplicationMinSize. * nix/libstore/local-store.hh (deduplicationMinSize): New declaration. * nix/libstore/optimise-store.cc (deduplicationMinSize): New variable. (LocalStore::optimisePath_): Return when PATH is a symlink or smaller than 'deduplicationMinSize'. * tests/derivations.scm ("identical files are deduplicated"): Produce files bigger than %DEDUPLICATION-MINIMUM-SIZE. * tests/nar.scm ("restore-file-set with directories (signed, valid)"): Likewise. * tests/store-deduplication.scm ("deduplicate, below %deduplication-minimum-size"): New test. ("deduplicate", "deduplicate, ENOSPC"): Produce files bigger than %DEDUPLICATION-MINIMUM-SIZE. * tests/store.scm ("substitute, deduplication"): Likewise.
2020-06-06	daemon: Handle EXDEV when moving to trash directory.	Chris Marusich
	Fixes <https://bugs.gnu.org/41607>. Reported by Stephen Scheck <singularsyntax@gmail.com>. * nix/libstore/gc.cc (LocalStore::deletePathRecursive): When we try to move a dead directory into the trashDir using rename(2) but it returns an EXDEV error, just delete the directory instead. This can happen in a Docker container when the directory is not on the "top layer".
2020-02-26	daemon: Drop 'AT_STATX_DONT_SYNC' flag upon EINVAL.	Ludovic Courtès
	Fixes <https://bugs.gnu.org/39727>. Reported by Paul Garlick <pgarlick@tourbillion-technology.com>. * nix/libstore/gc.cc (LocalStore::removeUnusedLinks) [HAVE_STATX]: Add 'statx_flags' static variables. Clear 'AT_STATX_DONT_SYNC' flag from 'statx_flags' when 'statx' returns EINVAL.
2020-01-12	daemon: Fix the displayed GC estimated progress.	Ludovic Courtès
	* nix/libstore/gc.cc (LocalStore::deletePathRecursive): Fix computation of 'fraction'. Take 'bytesInvalidated' into account.
2020-01-12	daemon: Account for deleted store files when deduplication is on.	Ludovic Courtès
	Previously, a store item that is a regular file would not be accounted for in the 'bytesFreed' value computed by 'deletePath' because its 'st_nlink' count would always be >= 2. This commit fixes that. * nix/libutil/util.hh (deletePath): Add optional 'linkThreshold' argument. * nix/libutil/util.cc (_deletePath): Add 'linkThreshold' argument and honor it. Pass it down in recursive call. (deletePath): Add 'linkThreshold' and honor it. * nix/libstore/gc.cc (LocalStore::deleteGarbage): Pass 'linkThreshold' argument to 'deletePath', with a value of 2 when PATH is a store item and deduplication is on.
2019-11-27	daemon: GC remove-unused-links phase uses 'statx' when available.	Ludovic Courtès
	* config-daemon.ac: Check for 'statx'. * nix/libstore/gc.cc (LocalStore::removeUnusedLinks) [HAVE_STATX]: Use 'statx' instead of 'lstat'.
2019-11-22	daemon: GC displays how much it has collected.	Ludovic Courtès
	* nix/libstore/gc.cc (LocalStore::deletePathRecursive): Display the percentage reached relative to 'maxFreed', or the total amount of data deleted when 'maxFreed' is ULLONG_MAX.
2019-10-16	daemon: Remove traces of 'NIX_ROOT_FINDER'.	Ludovic Courtès
	This is a followup to 2e3e5d21988fc2cafb2a9eaf4b00976ea425629d. * build-aux/test-env.in: Remove mentions of 'NIX_ROOT_FINDER'. * nix/libstore/gc.cc (LocalStore::collectGarbage): Adjust comment accordingly.
2019-09-08	daemon: Invoke 'guix gc --list-busy' instead of 'list-runtime-roots'.	Ludovic Courtès
	* nix/scripts/list-runtime-roots.in: Remove. * guix/store/roots.scm (%proc-directory): New variable. (proc-file-roots, proc-exe-roots, proc-cwd-roots) (proc-fd-roots, proc-maps-roots, proc-environ-roots) (referenced-files, canonicalize-store-item, busy-store-items): New procedures, taken from 'list-runtime-roots.in'. * nix/libstore/globals.hh (Settings)[guixProgram]: New field. * nix/libstore/globals.cc (Settings::processEnvironment): Initialize 'guixProgram'. * nix/libstore/gc.cc (addAdditionalRoots): Drop code related to 'NIX_ROOT_FINDER'. Run "guix gc --list-busy". * nix/local.mk (nodist_pkglibexec_SCRIPTS): Remove 'scripts/list-runtime-roots'. * config-daemon.ac: Don't output nix/scripts/list-runtime-roots. * build-aux/pre-inst-env.in: Don't set 'NIX_ROOT_FINDER'. Set 'GUIX'. * doc/guix.texi (Invoking guix gc): Document '--list-busy'. * guix/scripts/gc.scm (show-help, %options): Add "--list-busy". (guix-gc)[list-busy]: New procedure. Handle the 'list-busy' action.
2019-08-30	daemon: Don't reply on 'st_blocks'.	Eelco Dolstra
	Ported by Ludovic Courtès <ludo@gnu.org> from <https://github.com/NixOS/nix/commit/a2c4fcd5e9782dc8d2998773380c7171ee53b813>. * nix/libstore/gc.cc (LocalStore::removeUnusedLinks): Use 'st.st_size' instead of 'st.st_blocks * 512'. * nix/libutil/util.cc (_deletePath): Likewise.