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31 lines
649 B
Bash
31 lines
649 B
Bash
#!/usr/bin/env bash
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export LANG=C
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export LC_ALL=C
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[ -n "$TOPDIR" ] && cd $TOPDIR
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try_version() {
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[ -f version.date ] || return 1
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SOURCE_DATE_EPOCH="$(cat version.date)"
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[ -n "$SOURCE_DATE_EPOCH" ]
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}
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try_git() {
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[ -e .git ] || return 1
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SOURCE_DATE_EPOCH="$(git log -1 --format=format:%ct)"
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[ -n "$SOURCE_DATE_EPOCH" ]
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}
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try_hg() {
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[ -d .hg ] || return 1
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SOURCE_DATE_EPOCH="$(hg log --template '{date}' -l 1 | cut -d. -f1)"
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[ -n "$SOURCE_DATE_EPOCH" ]
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}
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try_mtime() {
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perl -e 'print((stat $ARGV[0])[9])' "$0"
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[ -n "$SOURCE_DATE_EPOCH" ]
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}
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try_version || try_git || try_hg || try_mtime || SOURCE_DATE_EPOCH=""
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echo "$SOURCE_DATE_EPOCH"
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