101 lines
2.2 KiB
Plaintext
101 lines
2.2 KiB
Plaintext
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#!/bin/bash
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set -o errexit
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set -o nounset
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set -o pipefail
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# For a tag to be considered suitable for release, it must start with
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# the latter 'v' followed by a digit. Afterwards, any sequence of
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# alphanumerics and '.', '+', '-', '~' are supported.
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#
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# Supported tag examples:
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# v1.8-rc1
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# v1.9~rc1
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# v2
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# v2.0
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#
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# Unsupported tag examples:
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# 1.9
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# 2.0
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# release-test
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TAG_REGEX='^v[[:digit:]][[:alnum:]\.\+\-\~]+$'
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usage()
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{
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cat <<'EOF'
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USAGE: get-version [OPTIONS]
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DESCRIPTION:
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OPTIONS:
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-h Displays this help text.
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-p PREFIX Modify the version string for use with packages. Both Debian and
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Fedora packages have strict version requirements. If there exist
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no tags that reference this commit or the tags are not suitable
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for packages, use "$PREFIX-$GIT_SHORT_COMMIT" instead. The
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prefix must start with a number.
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-n (Only works when used with -p). Use the nightly version format.
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This uses the format "$PREFIX-nightly-YYYYMMDD".
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EOF
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}
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go_version()
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{
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# `git describe --exact` will fail when no tags match the HEAD commit.
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# This is a supported scenario. So, this discards the return value.
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TAG=$(git describe --exact --tag HEAD 2>/dev/null || true)
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if [[ ${TAG} =~ ${TAG_REGEX} ]]
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then
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printf '%s\n' "${TAG}"
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return
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fi
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printf 'unknown\n'
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}
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package_version()
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{
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# `git describe --exact` will fail when no tags match the HEAD commit.
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# This is a supported scenario. So, this discards the return value.
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TAG=$(git describe --exact --tag HEAD 2>/dev/null || true)
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if [[ ${TAG} =~ ${TAG_REGEX} ]]
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then
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# Debian package versions must start with a number; therefore, the
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# 'v' must be stripped from the tag.
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printf '%s\n' "${TAG:1}"
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return
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fi
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if [[ ${PACKAGE_VERSION_NIGHTLY:-} ]]
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then
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printf '%s-nightly-%s\n' "${PACKAGE_VERSION_PREFIX}" "$(date '+%Y%m%d')"
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return
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fi
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printf '%s-%s\n' "${PACKAGE_VERSION_PREFIX}" "$(git rev-parse --verify --short HEAD)"
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}
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while getopts 'hp:n' option
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do
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case $option
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in
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n)
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PACKAGE_VERSION_NIGHTLY=1
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;;
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p)
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PACKAGE_VERSION_PREFIX=${OPTARG}
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;;
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h)
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usage && exit 0
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;;
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esac
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done
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if [[ ${PACKAGE_VERSION_PREFIX:-} ]]
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then
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package_version
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else
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go_version
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fi
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