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27 lines
536 B
Bash
27 lines
536 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 $TOPDIR
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try_version() {
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[ -f version ] || return 1
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REV="$(cat version)"
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[ -n "$REV" ]
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}
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try_git() {
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git rev-parse --git-dir >/dev/null 2>&1 || return 1
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REV="$(git describe --match reboot | sed "s/reboot-\([0-9]*\)-.*/\1/g")"
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[ -n "$REV" ]
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}
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try_hg() {
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[ -d .hg ] || return 1
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REV="$(hg log -r-1 --template '{desc}' | awk '{print $2}' | sed 's/\].*//')"
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REV="${REV:+$REV}"
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[ -n "$REV" ]
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}
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try_version || try_git || try_hg || REV="unknown"
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echo "$REV"
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