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| author | Ludovic Courtès <ludo@gnu.org> | 2013-09-02 23:03:03 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2013-09-02 23:04:25 +0200 |
| commit | 43dd92024ab54921fbf85285d04344cb2c6e77cc (patch) | |
| tree | 802ce4e8c2eab83358c0f1cd95373bd49ec76440 /tests/union.scm | |
| parent | 165fd9d5e628120a8355aec2d03f0b6f497d3db2 (diff) | |
| download | gnu-guix-43dd92024ab54921fbf85285d04344cb2c6e77cc.tar gnu-guix-43dd92024ab54921fbf85285d04344cb2c6e77cc.tar.gz | |
union: Don't traverse sub-directories only found in one element of the union.
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.
Diffstat (limited to 'tests/union.scm')
| -rw-r--r-- | tests/union.scm | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/tests/union.scm b/tests/union.scm index 9816882101..6287cffc38 100644 --- a/tests/union.scm +++ b/tests/union.scm @@ -114,7 +114,17 @@ (file-exists? "bin/ld") (file-exists? "lib/libc.so") (directory-exists? "lib/gcc") - (file-exists? "include/unistd.h")))))) + (file-exists? "include/unistd.h") + + ;; The 'include' sub-directory is only found in + ;; glibc-bootstrap, so it should be unified in a + ;; straightforward way, without traversing it. + (eq? 'symlink (stat:type (lstat "include"))) + + ;; Conversely, several inputs have a 'bin' sub-directory, so + ;; unifying it requires traversing them all, and creating a + ;; new 'bin' sub-directory in the profile. + (eq? 'directory (stat:type (lstat "bin")))))))) (test-end) |