28 lines
464 B
Plaintext
28 lines
464 B
Plaintext
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#! /bin/sh
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: ${YEAR_FILE:=$1}
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: ${DEFAULT_YEAR:=$2}
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year=
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[ -n "${YEAR_FILE}" ] || {
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echo >&2 "$0 $(dirname "$0")/.year [DEFAULT_YEAR]"
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exit 1
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}
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[ -f "${YEAR_FILE}" ] && year="$(cat "${YEAR_FILE}")"
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[ -n "${year}" ] ||
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year="$(git show --format=format:%cd --no-patch --date=format:%Y)"
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[ -n "${year}" ] || year="${DEFAULT_YEAR}"
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[ -n "${year}" ] || year="$(date "+%Y")"
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[ -n "${year}" ] || {
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echo >&2 'Undefined year.'
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exit 1
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}
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printf "%s" "${year}"
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