[buildbot] phase1: rsync based on checksum, not mtime

[LEDE Commits]

jow pushed a commit to buildbot.git, branch master:
https://git.lede-project.org/1dba284ea8cf60f53e0ea861b054b72e2e4341df

commit 1dba284ea8cf60f53e0ea861b054b72e2e4341df
Author: Jo-Philipp Wich <jo at mein.io>
AuthorDate: Fri Nov 4 14:16:32 2016 +0100

    phase1: rsync based on checksum, not mtime
    
    Instruct rsync to compare the file checksums, and not their modification times.
    This should decrease the source upload volume significantly.
    
    Signed-off-by: Jo-Philipp Wich <jo at mein.io>
---
 phase1/master.cfg | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/phase1/master.cfg b/phase1/master.cfg
index 908087e..89243ff 100644
--- a/phase1/master.cfg
+++ b/phase1/master.cfg
@@ -529,7 +529,7 @@ EOT''' %(ts[0], ts[0], ts[1]) ))
 	factory.addStep(ShellCommand(
 		name = "targetupload",
 		description = "Uploading target files",
-		command=["rsync", "--delete", "--delay-updates", "--partial-dir=.~tmp~%s~%s" %(ts[0], ts[1]), "-avz", WithProperties("bin/targets/%s/%s%%(libc)s/" %(ts[0], ts[1])), "%s/targets/%s/%s/" %(rsync_bin_url, ts[0], ts[1])],
+		command=["rsync", "--delete", "--checksum", "--delay-updates", "--partial-dir=.~tmp~%s~%s" %(ts[0], ts[1]), "-avz", WithProperties("bin/targets/%s/%s%%(libc)s/" %(ts[0], ts[1])), "%s/targets/%s/%s/" %(rsync_bin_url, ts[0], ts[1])],
 		env={'RSYNC_PASSWORD': rsync_bin_key},
 		haltOnFailure = True,
 		logEnviron = False
@@ -539,7 +539,7 @@ EOT''' %(ts[0], ts[0], ts[1]) ))
 		factory.addStep(ShellCommand(
 			name = "sourceupload",
 			description = "Uploading source archives",
-			command=["rsync", "--delay-updates", "--partial-dir=.~tmp~%s~%s" %(ts[0], ts[1]), "-avz", "dl/", "%s/" %(rsync_src_url)],
+			command=["rsync", "--checksum", "--delay-updates", "--partial-dir=.~tmp~%s~%s" %(ts[0], ts[1]), "-avz", "dl/", "%s/" %(rsync_src_url)],
 			env={'RSYNC_PASSWORD': rsync_src_key},
 			haltOnFailure = True,
 			logEnviron = False