[OE-core] [PATCH] patch: reproducibility: Fix host umask leakage

[Douglas Royds]

Some patch files create entirely new files, so their permissions are subject to
the host umask. If such a file is later installed into a package with no change
in permissions, it breaks the reproducibility of the package.

This was observed on libpam, for instance: The patch file
pam-security-abstract-securetty-handling.patch creates a new file
(tty_secure.c). This file is later copied into the -dbg package with no change
in permissions.

Signed-off-by: Douglas Royds <douglas.royds at taitradio.com>
---
 meta/classes/patch.bbclass | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/classes/patch.bbclass b/meta/classes/patch.bbclass
index 3e0a181821..cd241f1c84 100644
--- a/meta/classes/patch.bbclass
+++ b/meta/classes/patch.bbclass
@@ -153,6 +153,7 @@ python patch_do_patch() {
 patch_do_patch[vardepsexclude] = "PATCHRESOLVE"
 
 addtask patch after do_unpack
+do_patch[umask] = "022"
 do_patch[dirs] = "${WORKDIR}"
 do_patch[depends] = "${PATCHDEPENDENCY}"
 
-- 
2.17.1