From: Jo-Philipp Wich <jo@mein.io>
Date: Tue, 31 Jan 2017 06:50:29 +0000 (+0100)
Subject: scripts: get_source_date_epoch.sh: fix mercurial support, add mtime fallback
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=68bef935d52ae05c23233f2325970f56948a0558;p=openwrt%2Fstaging%2Fyousong.git

scripts: get_source_date_epoch.sh: fix mercurial support, add mtime fallback

Add a fallback case to get_source_date_epoch.sh which reports the modification
time of the script itself in case there is no SCM information available, e.g.
when downloading .tar.gz or .zip tarballs produced by Github.

Also fix the mercurial case while we're at it.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
---

diff --git a/scripts/get_source_date_epoch.sh b/scripts/get_source_date_epoch.sh
index ea8d930109..84ba445454 100755
--- a/scripts/get_source_date_epoch.sh
+++ b/scripts/get_source_date_epoch.sh
@@ -17,9 +17,14 @@ try_git() {
 
 try_hg() {
 	[ -d .hg ] || return 1
-	SOURCE_DATE_EPOCH=""
+	SOURCE_DATE_EPOCH="$(hg log --template '{date}' -l 1 | cut -d. -f1)"
 	[ -n "$SOURCE_DATE_EPOCH" ]
 }
 
-try_version || try_git || try_hg || SOURCE_DATE_EPOCH=""
+try_mtime() {
+	perl -e 'print((stat $ARGV[0])[9])' "$0"
+	[ -n "$SOURCE_DATE_EPOCH" ]
+}
+
+try_version || try_git || try_hg || try_mtime || SOURCE_DATE_EPOCH=""
 echo "$SOURCE_DATE_EPOCH"