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https://github.com/ckolivas/lrzip.git
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106 lines
1.9 KiB
Bash
Executable file
106 lines
1.9 KiB
Bash
Executable file
#!/bin/bash
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# Peter Hyman, pete@peterhyman.com
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# December 2020
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# This program will return commit references based on Tags and Annotated Tags from git describe
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usage() {
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cat >&2 <<EOF
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$(basename $0) command [-r]
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all - entire git describe
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commit - commit, omitting v
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tagrev - tag revision count
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major - major release version
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ninor - minor release version
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micro - micro release version
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version - M.mic + [tag release count-HEAD commit]
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-r -- get release tag only
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EOF
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exit 1
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}
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# showw message and usage
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die() {
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echo "$1"
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usage
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}
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# return variables
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# everything, with leading `v' and leading `g' for commits
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describe_tag=
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# abbreviated commit
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commit=
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# count of commits from last tag
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tagrev=
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# major version
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major=
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# minor version
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minor=
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# micro version
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micro=
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# get release or tag?
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tagopt="--tags"
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# get whole commit and parse
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# if tagrev > 0 then add it and commit to micro version
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# Expected format is:
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# v#.###-g#######
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init() {
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describe_tag=$(git describe $tagopt --long --abbrev=7)
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describe_tag=${describe_tag/v/}
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describe_tag=${describe_tag/g/}
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commit=$(echo $describe_tag | cut -d- -f3)
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tagrev=$(echo $describe_tag | cut -d- -f2)
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version=$(echo $describe_tag | cut -d- -f1)
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micro=${version: -2}
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[ $tagrev -gt 0 ] && micro=$micro-$tagrev-$commit
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minor=${version: -3:1}
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major=$(echo $version | cut -d. -f1)
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}
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[ ! $(which git) ] && die "Something very wrong: git not found."
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[ $# -eq 0 ] && die "Must provide a command and optional argument."
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# are we getting a release only?
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if [ $# -eq 2 ]; then
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if [ $2 = "-r" ]; then
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tagopt=""
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else
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die "Invalid option. Must be -r or nothing."
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fi
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fi
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init
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case "$1" in
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"all" )
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retval=$describe_tag
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;;
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"commit" )
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retval=$commit
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;;
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"tagrev" )
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retval=$tagrev
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;;
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"version" )
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retval=$version
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;;
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"major" )
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retval=$major
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;;
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"minor" )
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retval=$minor
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;;
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"micro" )
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retval=$micro
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;;
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* )
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die "Invalid command."
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;;
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esac
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echo $retval
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exit 0
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