[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 c42c3c43ce1ac311c60b37b60c343faac590c288
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 2dfbf85..ddeb433 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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