[Reproducible-commits] [dpkg] 01/05: dpkg-deb: Normalize file permissions when creating control.tar

[Mattia Rizzolo]

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mattia pushed a commit to branch pu/reproducible_builds
in repository dpkg.

commit 3f4d80c1863dfeb9746358fe585422ee685c9c8f
Author: Jérémy Bobbio <lunar at debian.org>
Date:   Thu Jun 4 18:48:28 2015 +0200

    dpkg-deb: Normalize file permissions when creating control.tar
    
    Permissions of file in control.tar will likely be affected by a different
    umask. While `dh_fixperms` already normalizes permissions for most
    packages, debhelper is not used by everywhere. As there is no use cases
    for having different permissions for control files than 644 or 755,
    we can normalize them directly in dpkg.
    
    This helps packages to build reproducibly when built with different umasks.
    
    Closes: #787980
---
 dpkg-deb/build.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dpkg-deb/build.c b/dpkg-deb/build.c
index 655aa55..80f025d 100644
--- a/dpkg-deb/build.c
+++ b/dpkg-deb/build.c
@@ -448,6 +448,7 @@ tarball_pack(const char *dir, filenames_feed_func *tar_filenames_feeder,
 
     execlp(TAR, "tar", "-cf", "-", "--format=gnu",
                        "--mtime", mtime, "--clamp-mtime",
+                       "--mode=go=rX,u+rw,a-s",
                        "--null", "--no-unquote",
                        "--no-recursion", "-T", "-", NULL);
     ohshite(_("unable to execute %s (%s)"), "tar -cf", TAR);

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