[Reproducible-commits] [dpkg] 05/09: Normalize file permissions when creating control.tar

[Jérémy Bobbio]

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

commit c91599ff0957814f2b4d9ac298e01240cc8daddf
Author: Jérémy Bobbio <lunar at debian.org>
Date:   Thu Jun 4 18:48:28 2015 +0200

    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.
---
 dpkg-deb/build.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dpkg-deb/build.c b/dpkg-deb/build.c
index 5f669c9..1ecd432 100644
--- a/dpkg-deb/build.c
+++ b/dpkg-deb/build.c
@@ -544,7 +544,8 @@ do_build(const char *const *argv)
       ohshite(_("failed to chdir to '%.255s'"), dir);
     if (chdir(BUILDCONTROLDIR))
       ohshite(_("failed to chdir to '%.255s'"), ".../DEBIAN");
-    execlp(TAR, "tar", "-cf", "-", "--format=gnu", "--sort=name", ".", NULL);
+    execlp(TAR, "tar", "-cf", "-", "--format=gnu", "--sort=name", "--mode=go=rX,u+rw,a-s",
+                ".", NULL);
     ohshite(_("unable to execute %s (%s)"), "tar -cf", TAR);
   }
   close(p1[1]);

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