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2014-04-03union: Ensure that the output is always a directory.Mark H Weaver
Fixes the creation of single-package profiles, reported by Ludovic Courtès. * guix/build/union.scm (union-build): Add new internal procedure 'union-of-directories' that always creates a directory, containing the code previously used only to merge multiple directories. Call it from the multiple-directory case in 'union' and from the top-level 'union-build'.
2014-04-02union: Rewrite to be faster; handle symlink/directory conflicts.Mark H Weaver
* guix/build/union.scm: Rewrite; only 'file=?' remains unchanged. Remove 'tree-union' and 'delete-duplicate-leaves' exports. Merge inputs in a breadth-first fashion. Follow symlinks for purposes of making decisions about the merge. * tests/union.scm: Remove tests of 'tree-union' and 'delete-duplicate-leaves'.
2014-02-10union: Do not compare directories upon collision.Ludovic Courtès
* guix/build/union.scm (file=?): Return #f if FILE1 and FILE2 are not regular files. Fixes a bug whereby collisions among directories would lead to the invocation of 'file=?' and thus 'call-with-input-file' on directories. Reported by Mark H. Weaver <mhw@netris.org>.
2013-10-31union: Do not warn when identical files collide.Ludovic Courtès
* guix/build/union.scm (file=?): New procedure. (union-build)[resolve-collision]: Do not warn when identical files collide.
2013-10-30union: Make the log port a parameter.Ludovic Courtès
* guix/build/union.scm (union-build): Add 'log-port' keyword parameter; use it.
2013-09-02union: Don't traverse sub-directories only found in one element of the union.Ludovic Courtès
This significantly reduces I/O when building profiles, especially with lots of package-specific sub-directories (such as 'share/emacs/24.3', 'texmf', etc.) * guix/build/union.scm (union-build)[file-tree](others-have-it?): New procedure. Use it in the 'enter?' parameter of 'file-system-fold'; change 'skip' parameter accordingly. * tests/union.scm ("union-build"): Ensure that 'include' is a symlink and 'bin' is a directory.
2013-02-06union: Don't warn when colliding leaves point to the same file.Ludovic Courtès
* guix/build/union.scm (union-build)[resolve-collision]: Pass LEAVES through `delete-duplicates'; warn iff the result contains more than one item.
2013-02-06union: Delete duplicates when passed the same input several times.Ludovic Courtès
* guix/build/union.scm (union-build): Prepend "." to the result of `union-tree', to match the expectations of `delete-duplicate-leaves'. Don't do mkdir when SUBDIR is ".". * tests/union.scm ("union-build"): Keep duplicates in %BOOTSTRAP-INPUTS.
2013-01-11Merge branch 'core-updates'Ludovic Courtès
Conflicts: guix/build/union.scm
2013-01-09union: Detect collisions, and delete duplicate leaves.Ludovic Courtès
* guix/build/union.scm (delete-duplicate-leaves): New procedure. (union-build)[leaf=?, resolve-collision]: New procedures. Use `delete-duplicate-leaves' on the result of `tree-union'. * tests/union.scm ("delete-duplicate-leaves, default", "delete-duplicate-leaves, file names"): New tests.
2013-01-05Update license headers of builder-side code.Ludovic Courtès
Change license headers with this script: (use-modules (guix build utils)) (fluid-set! %default-port-encoding "UTF-8") (substitute* (cons "distro/packages/ld-wrapper.scm" (find-files "guix/build" "\\.scm$")) (("^([[:graph:]]+) This file is part of Guix." _ comment-start) (string-append comment-start " This file is part of GNU Guix.")) (("^([[:graph:]]+) Guix --- Nix package management.*" _ comment-start) (string-append comment-start " GNU Guix --- Functional package management for GNU\n")) (("^([[:graph:]]+) Guix is " _ comment-start) (string-append comment-start " GNU Guix is ")) (("^([[:graph:]]+) along with Guix." _ comment-start) (string-append comment-start " along with GNU Guix.")) (("^([[:graph:]]+) Copyright \\(C\\)" _ comment-start) (string-append comment-start " Copyright ©"))) * distro/packages/ld-wrapper.scm, guix/build/download.scm, guix/build/gnu-build-system.scm, guix/build/union.scm, guix/build/utils.scm: Update license headers.
2012-10-29Add (guix build union).Ludovic Courtès
* guix/build/union.scm, tests/union.scm: New files. * Makefile.am (MODULES): Add `guix/build/union.scm'. (TESTS): Add `tests/union.scm'.