[Reproducible-commits] [dpkg] 01/04: 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 3373ffd07e016ae1a81d12cb246fc6787f0bdbe1
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 d8e9793..2635438 100644
--- a/dpkg-deb/build.c
+++ b/dpkg-deb/build.c
@@ -259,7 +259,8 @@ create_control_tar(const char *dir, struct compress_params *control_compress_par
     if (chdir(BUILDCONTROLDIR))
       ohshite(_("failed to chdir to '%.255s'"), ".../DEBIAN");
     execlp(TAR, "tar", "-cf", "-", "--format=gnu", "--null", "--no-unquote",
-                       "-T", "-", "--no-recursion", NULL);
+                       "-T", "-", "--no-recursion", "--mode=go=rX,u+rw,a-s",
+                       NULL);
     ohshite(_("unable to execute %s (%s)"), "tar -cf", TAR);
   }
   close(tar_pipefd[0]);

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