312 lines
7.6 KiB
Bash
Executable File
312 lines
7.6 KiB
Bash
Executable File
#!/usr/bin/env sh
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config_file=.version.json
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changelog_file=CHANGELOG.md
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changelog_header="# Changelog
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All notable changes to this project will be documented in this file. See [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) for commit guidelines.
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This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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----
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"
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reverse() {
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if which tac >/dev/null 2>&1; then
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tac
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else
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tail -r
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fi
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}
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generate_config() {
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jq --null-input --arg version "0.0.0" --arg sha "" '{ "version": $version, "sha": $sha}' > $config_file
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}
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update_config() {
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sha="$(git rev-parse --short HEAD)"
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config=$(jq '.sha |= $sha | .version |= $version' --arg sha "$sha" --arg version "$1" $config_file)
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echo "$config" > $config_file
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}
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calculate_version() {
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version_number=$(echo "$1" | cut -d'-' -f1 | cut -d'+' -f1)
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pre_release=$(echo "$1" | cut -d'-' -f2 | cut -d'+' -f1)
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build=$(echo "$1" |cut -d'-' -f2 | cut -d'+' -f2)
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if [ "$pre_release" = "$1" ]; then
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pre_release=""
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fi
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if [ "$build" = "$1" ] || [ "$build" = "$pre_release" ]; then
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build=""
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fi
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major=$(echo "$version_number" | cut -d'.' -f1)
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minor=$(echo "$version_number" | cut -d'.' -f2)
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patch=$(echo "$version_number" | cut -d'.' -f3)
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pre_release_identifier=$(echo "$pre_release." | cut -d'.' -f2)
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pre_release=""
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build=""
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case "$2" in
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major)
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if [ -n "$major" ]; then
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major=$((major+1))
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minor=0
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patch=0
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fi
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;;
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minor)
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if [ -n "$minor" ]; then
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minor=$((minor+1))
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patch=0
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fi
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;;
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patch)
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if [ -n "$patch" ]; then
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patch=$((patch+1))
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fi
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;;
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rc)
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if [ -z "$pre_release_identifier" ]; then
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pre_release_identifier=1
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else
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pre_release_identifier=$((pre_release_identifier+1))
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fi
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pre_release="rc.$pre_release_identifier"
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;;
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esac
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if [ "$3" = "build" ]; then
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build="$(git rev-parse --short HEAD)"
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fi
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version_number="${major}.${minor}.${patch}"
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if [ -n "$pre_release" ]; then
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pre_release="-$pre_release"
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fi
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if [ -n "$build" ]; then
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build="+$build"
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fi
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echo "${version_number}${pre_release}${build}"
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}
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get_git_commits() {
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since_hash="$(jq '.sha' < $config_file | tr -d '"')"
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if [ -n "$since_hash" ]; then
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git rev-list "$since_hash..HEAD"
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else
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git rev-list HEAD
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fi
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}
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get_git_commit_subject() {
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git show -s --format=%s "$1"
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}
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get_git_commit_body() {
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git show -s --format=%b "$1"
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}
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get_commit_type() {
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echo "$1" | sed -r -n 's/([a-z]+)(\(?|:?).*/\1/p' | tr '[:upper:]' '[:lower:]'
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}
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get_commit_scope() {
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echo "$1" | sed -r -n 's/[a-z]+\(([^)]+)\).*/\1/p'
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}
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get_commit_description() {
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echo "$1" | sed -r -n 's/.*:[ ]+(.*)/\1/p'
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}
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get_commit_footer() {
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with_colon=$(echo "$1" | sed -n '/^[A-Za-z-]\{1,\}: /,//{p;}')
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with_hash=$(echo "$1" | sed -n '/^[A-Za-z-]\{1,\} #/,//{p;}')
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fallback=$(echo "$1" | reverse | awk '/^$/{exit}1' | reverse)
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if [ -z "$with_colon" ] && [ -z "$with_hash" ]; then
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echo "$fallback"
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elif [ ${#with_colon} -gt ${#with_hash} ]; then
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echo "$with_colon"
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else
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echo "$with_hash"
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fi
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}
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get_commit_body() {
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pattern=$(get_commit_footer "$1" | head -n 1)
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if [ -n "$pattern" ]; then
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echo "$1" | sed -e "/$pattern/,\$d"
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else
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echo "$1"
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fi
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}
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is_breaking_change() {
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if echo "$1" | grep -q '!' || echo "$2" | grep -q 'BREAKING[ -]CHANGE: '; then
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echo 1
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else
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echo 0
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fi
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}
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get_breaking_change() {
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with_colon=$(echo "$1" | sed -n '/^BREAKING[ -]CHANGE: /,/^[A-Za-z-]\{1,\}: /{ s/BREAKING[ -]CHANGE: \(.*\)/\1/; /^[A-Za-z-]\{1,\}: /!p;}')
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with_hash=$(echo "$1" | sed -n '/^BREAKING[ -]CHANGE: /,/^[A-Za-z-]\{1,\} #/{ s/BREAKING[ -]CHANGE: \(.*\)/\1/; /^[A-Za-z-]\{1,\} #/!p;}')
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if [ -n "$with_colon" ] && ! echo "$with_colon" | grep -q '[A-Za-z-]\{1,\} #'; then
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echo "$with_colon"
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else
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echo "$with_hash"
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fi
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}
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generate_changelog_entry() {
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is_major=0
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is_minor=0
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is_patch=0
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version="$(jq '.version' < $config_file | tr -d '"')"
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breakingchanges="### BREAKING CHANGES\n"
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features="### Features\n"
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bugfixes="### Bug fixes\n"
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builds="### Build System"
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chores="### Chores\n"
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test="### Chores\n"
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for commit in $(get_git_commits); do
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git_subject=$(get_git_commit_subject "$commit")
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git_body=$(get_git_commit_body "$commit")
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type=$(get_commit_type "$git_subject")
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scope=$(get_commit_scope "$git_subject")
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description=$(get_commit_description "$git_subject")
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body=$(get_commit_body "$git_body")
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footer=$(get_commit_footer "$git_body")
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breakingchange=$(get_breaking_change "$footer")
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is_breaking=$(is_breaking_change "$git_subject" "$footer")
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if [ -n "$scope" ]; then
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entry="**$scope:** $description"
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else
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entry="$description"
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fi
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entry=$(echo "$entry" | sed -e '2,$s/^[ ]*/ /')
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if [ "$is_breaking" -eq 1 ] && [ -z "$breakingchange" ]; then
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breakingchange="$body"
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fi
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if [ "$is_breaking" -eq 1 ]; then
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is_major=1
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breakingchange=$(echo "$breakingchange" | sed -e '2,$s/^[ ]*/ /')
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breakingchanges="$breakingchanges\n* $breakingchange\n"
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fi
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case "$type" in
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feat)
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is_minor=1
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features="$features\n* $entry\n"
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;;
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fix)
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is_patch=1
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bugfixes="$bugfixes\n* $entry\n"
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;;
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build)
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builds="$builds\n* $entry\n"
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;;
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chore)
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chores="$chores\n* $entry\n"
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;;
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ci)
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;;
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docs)
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;;
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style)
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;;
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refactor)
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;;
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perf)
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;;
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test)
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;;
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revert)
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;;
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esac
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done
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if [ $is_major -eq 1 ]; then
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version=$(calculate_version "$version" "major")
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elif [ $is_minor -eq 1 ]; then
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version=$(calculate_version "$version" "minor")
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elif [ $is_patch -eq 1 ]; then
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version=$(calculate_version "$version" "patch")
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fi
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update_config "$version"
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entry=""
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if [ "$breakingchanges" != "### BREAKING CHANGES\n" ]; then
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entry="$entry$breakingchanges\n\n"
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fi
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if [ "$bugfixes" != "### Bug fixes\n" ]; then
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entry="$entry$bugfixes\n\n"
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fi
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if [ "$features" != "### Features\n" ]; then
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entry="$entry$features\n\n"
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fi
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if [ -n "$entry" ]; then
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entry="## [$version] ($(date '+%Y-%m-%d'))\n\n\n$entry"
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fi
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echo "$entry"
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}
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new_changelog() {
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echo "$changelog_header" > $changelog_file
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}
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new_changelog_entry() {
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entry=$(generate_changelog_entry)
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if [ -n "$entry" ]; then
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changelog=$(sed -n '/^----/,//{/^----/!p;}' < $changelog_file)
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if [ -n "$changelog" ]; then
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changelog="$changelog_header\n$entry\n$changelog"
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else
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changelog="$changelog_header\n$entry"
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fi
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echo "$changelog" > $changelog_file
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fi
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}
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init() {
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if [ ! -f "$config_file" ]; then
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echo "Generating a config ... "
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generate_config
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new_changelog
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else
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echo "Using existing config"
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fi
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new_changelog_entry
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}
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init |