Joey Armstrong | e8c091f | 2023-01-17 16:56:26 -0500 | [diff] [blame] | 1 | #!/usr/bin/env bash |
| 2 | |
| 3 | # Copyright The OpenTelemetry Authors |
| 4 | # |
| 5 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | # you may not use this file except in compliance with the License. |
| 7 | # You may obtain a copy of the License at |
| 8 | # |
| 9 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | # |
| 11 | # Unless required by applicable law or agreed to in writing, software |
| 12 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | # See the License for the specific language governing permissions and |
| 15 | # limitations under the License. |
| 16 | |
| 17 | readonly PROGNAME=$(basename "$0") |
| 18 | readonly PROGDIR=$(readlink -m "$(dirname "$0")") |
| 19 | |
| 20 | readonly EXCLUDE_PACKAGES="internal/tools" |
| 21 | readonly SEMVER_REGEX="v(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)(\\-[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?(\\+[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?" |
| 22 | |
| 23 | usage() { |
| 24 | cat <<- EOF |
| 25 | Usage: $PROGNAME [OPTIONS] SEMVER_TAG COMMIT_HASH |
| 26 | |
| 27 | Creates git tag for all Go packages in project. |
| 28 | |
| 29 | OPTIONS: |
| 30 | -h --help Show this help. |
| 31 | |
| 32 | ARGUMENTS: |
| 33 | SEMVER_TAG Semantic version to tag with. |
| 34 | COMMIT_HASH Git commit hash to tag. |
| 35 | EOF |
| 36 | } |
| 37 | |
| 38 | cmdline() { |
| 39 | local arg commit |
| 40 | |
| 41 | for arg |
| 42 | do |
| 43 | local delim="" |
| 44 | case "$arg" in |
| 45 | # Translate long form options to short form. |
| 46 | --help) args="${args}-h ";; |
| 47 | # Pass through for everything else. |
| 48 | *) [[ "${arg:0:1}" == "-" ]] || delim="\"" |
| 49 | args="${args}${delim}${arg}${delim} ";; |
| 50 | esac |
| 51 | done |
| 52 | |
| 53 | # Reset and process short form options. |
| 54 | eval set -- "$args" |
| 55 | |
| 56 | while getopts "h" OPTION |
| 57 | do |
| 58 | case $OPTION in |
| 59 | h) |
| 60 | usage |
| 61 | exit 0 |
| 62 | ;; |
| 63 | *) |
| 64 | echo "unknown option: $OPTION" |
| 65 | usage |
| 66 | exit 1 |
| 67 | ;; |
| 68 | esac |
| 69 | done |
| 70 | |
| 71 | # Positional arguments. |
| 72 | shift $((OPTIND-1)) |
| 73 | readonly TAG="$1" |
| 74 | if [ -z "$TAG" ] |
| 75 | then |
| 76 | echo "missing SEMVER_TAG" |
| 77 | usage |
| 78 | exit 1 |
| 79 | fi |
| 80 | if [[ ! "$TAG" =~ $SEMVER_REGEX ]] |
| 81 | then |
| 82 | printf "invalid semantic version: %s\n" "$TAG" |
| 83 | exit 2 |
| 84 | fi |
| 85 | if [[ "$( git tag --list "$TAG" )" ]] |
| 86 | then |
| 87 | printf "tag already exists: %s\n" "$TAG" |
| 88 | exit 2 |
| 89 | fi |
| 90 | |
| 91 | shift |
| 92 | commit="$1" |
| 93 | if [ -z "$commit" ] |
| 94 | then |
| 95 | echo "missing COMMIT_HASH" |
| 96 | usage |
| 97 | exit 1 |
| 98 | fi |
| 99 | # Verify rev is for a commit and unify hashes into a complete SHA1. |
| 100 | readonly SHA="$( git rev-parse --quiet --verify "${commit}^{commit}" )" |
| 101 | if [ -z "$SHA" ] |
| 102 | then |
| 103 | printf "invalid commit hash: %s\n" "$commit" |
| 104 | exit 2 |
| 105 | fi |
| 106 | if [ "$( git merge-base "$SHA" HEAD )" != "$SHA" ] |
| 107 | then |
| 108 | printf "commit '%s' not found on this branch\n" "$commit" |
| 109 | exit 2 |
| 110 | fi |
| 111 | } |
| 112 | |
| 113 | package_dirs() { |
| 114 | # Return a list of package directories in the form: |
| 115 | # |
| 116 | # package/directory/a |
| 117 | # package/directory/b |
| 118 | # deeper/package/directory/a |
| 119 | # ... |
| 120 | # |
| 121 | # Making sure to exclude any packages in the EXCLUDE_PACKAGES regexp. |
| 122 | find . -mindepth 2 -type f -name 'go.mod' -exec dirname {} \; \ |
| 123 | | grep -E -v "$EXCLUDE_PACKAGES" \ |
| 124 | | sed 's/^\.\///' \ |
| 125 | | sort |
| 126 | } |
| 127 | |
| 128 | git_tag() { |
| 129 | local tag="$1" |
| 130 | local commit="$2" |
| 131 | |
| 132 | git tag -a "$tag" -s -m "Version $tag" "$commit" |
| 133 | } |
| 134 | |
| 135 | previous_version() { |
| 136 | local current="$1" |
| 137 | |
| 138 | # Requires git > 2.0 |
| 139 | git tag -l --sort=v:refname \ |
| 140 | | grep -E "^${SEMVER_REGEX}$" \ |
| 141 | | grep -v "$current" \ |
| 142 | | tail -1 |
| 143 | } |
| 144 | |
| 145 | print_changes() { |
| 146 | local tag="$1" |
| 147 | local previous |
| 148 | |
| 149 | previous="$( previous_version "$tag" )" |
| 150 | if [ -n "$previous" ] |
| 151 | then |
| 152 | printf "\nRaw changes made between %s and %s\n" "$previous" "$tag" |
| 153 | printf "======================================\n" |
| 154 | git --no-pager log --pretty=oneline "${previous}..$tag" |
| 155 | fi |
| 156 | } |
| 157 | |
| 158 | main() { |
| 159 | local dir |
| 160 | |
| 161 | cmdline "$@" |
| 162 | |
| 163 | cd "$PROGDIR" || exit 3 |
| 164 | |
| 165 | # Create tag for root package. |
| 166 | git_tag "$TAG" "$SHA" |
| 167 | printf "created tag: %s\n" "$TAG" |
| 168 | |
| 169 | # Create tag for all sub-packages. |
| 170 | for dir in $( package_dirs ) |
| 171 | do |
| 172 | git_tag "${dir}/$TAG" "$SHA" |
| 173 | printf "created tag: %s\n" "${dir}/$TAG" |
| 174 | done |
| 175 | |
| 176 | print_changes "$TAG" |
| 177 | } |
| 178 | main "$@" |