5 if [ -n "$TOPDIR" ]; then
10 [ -f version.date ] || return 1
11 SOURCE_DATE_EPOCH="$(cat version.date)"
12 [ -n "$SOURCE_DATE_EPOCH" ]
16 [ -e .git ] || return 1
17 SOURCE_DATE_EPOCH="$(git log -1 --format=format:%ct)"
18 [ -n "$SOURCE_DATE_EPOCH" ]
22 [ -d .hg ] || return 1
23 SOURCE_DATE_EPOCH="$(hg log --template '{date}' -l 1 | cut -d. -f1)"
24 [ -n "$SOURCE_DATE_EPOCH" ]
28 SOURCE_DATE_EPOCH=$(perl -e 'print((stat $ARGV[0])[9])' "$0")
29 [ -n "$SOURCE_DATE_EPOCH" ]
32 try_version || try_git || try_hg || try_mtime || SOURCE_DATE_EPOCH=""
33 echo "$SOURCE_DATE_EPOCH"