├── .github ├── CODEOWNERS ├── pull_request_template.md └── workflows │ ├── release.yml │ └── shellcheck.yml ├── .gitignore ├── CODE_OF_CONDUCT.md ├── CONTRIBUTING.md ├── Dockerfile ├── LICENSE ├── README.md ├── action.yml └── delete-old-branches /.github/CODEOWNERS: -------------------------------------------------------------------------------- 1 | # These owners will be the default owners for everything in 2 | # the repo. 3 | * @siavashs @teorizop @Dragotic @pkossyfas @ioannissavvaidis 4 | -------------------------------------------------------------------------------- /.github/pull_request_template.md: -------------------------------------------------------------------------------- 1 | 2 | ## Description 3 | 4 | 5 | #### Related Issues 6 | 7 | Addresses # 8 | -------------------------------------------------------------------------------- /.github/workflows/release.yml: -------------------------------------------------------------------------------- 1 | --- 2 | name: "Releases" 3 | on: 4 | push: 5 | tags: 6 | - "v[0-9]+.[0-9]+.[0-9]+" 7 | jobs: 8 | tagged-release: 9 | name: "Release" 10 | runs-on: ubuntu-latest 11 | steps: 12 | - name: Checkout code 13 | uses: actions/checkout@v4 14 | - name: Produce release body 15 | id: git_log 16 | uses: beatlabs/release-changelog-action@v0.0.2 17 | with: 18 | tag_regex: "v[0-9]+.[0-9]+.[0-9]+$" 19 | - name: Create Release 20 | id: create_release 21 | uses: actions/create-release@v1.1.4 22 | env: 23 | GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 24 | with: 25 | tag_name: ${{ github.ref }} 26 | release_name: ${{ github.ref }} 27 | body: ${{ steps.git_log.outputs.release_body }} 28 | draft: false 29 | prerelease: false 30 | -------------------------------------------------------------------------------- /.github/workflows/shellcheck.yml: -------------------------------------------------------------------------------- 1 | name: Linting 2 | on: 3 | push: 4 | branches: 5 | - master 6 | pull_request: 7 | branches: 8 | - master 9 | 10 | jobs: 11 | shellcheck: 12 | runs-on: ubuntu-latest 13 | steps: 14 | - uses: actions/checkout@v4 15 | - uses: bewuethr/shellcheck-action@v2 16 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Misc 2 | .idea/ -------------------------------------------------------------------------------- /CODE_OF_CONDUCT.md: -------------------------------------------------------------------------------- 1 | # Contributor Covenant Code of Conduct 2 | 3 | ## Our Pledge 4 | 5 | In the interest of fostering an open and welcoming environment, we as 6 | contributors and maintainers pledge to making participation in our project and 7 | our community a harassment-free experience for everyone, regardless of age, body 8 | size, disability, ethnicity, sex characteristics, gender identity and expression, 9 | level of experience, education, socio-economic status, nationality, personal 10 | appearance, race, religion, or sexual identity and orientation. 11 | 12 | ## Our Standards 13 | 14 | Examples of behavior that contributes to creating a positive environment 15 | include: 16 | 17 | * Using welcoming and inclusive language 18 | * Being respectful of differing viewpoints and experiences 19 | * Gracefully accepting constructive criticism 20 | * Focusing on what is best for the community 21 | * Showing empathy towards other community members 22 | 23 | Examples of unacceptable behavior by participants include: 24 | 25 | * The use of sexualized language or imagery and unwelcome sexual attention or 26 | advances 27 | * Trolling, insulting/derogatory comments, and personal or political attacks 28 | * Public or private harassment 29 | * Publishing others' private information, such as a physical or electronic 30 | address, without explicit permission 31 | * Other conduct which could reasonably be considered inappropriate in a 32 | professional setting 33 | 34 | ## Our Responsibilities 35 | 36 | Project maintainers are responsible for clarifying the standards of acceptable 37 | behavior and are expected to take appropriate and fair corrective action in 38 | response to any instances of unacceptable behavior. 39 | 40 | Project maintainers have the right and responsibility to remove, edit, or 41 | reject comments, commits, code, wiki edits, issues, and other contributions 42 | that are not aligned to this Code of Conduct, or to ban temporarily or 43 | permanently any contributor for other behaviors that they deem inappropriate, 44 | threatening, offensive, or harmful. 45 | 46 | ## Scope 47 | 48 | This Code of Conduct applies both within project spaces and in public spaces 49 | when an individual is representing the project or its community. Examples of 50 | representing a project or community include using an official project e-mail 51 | address, posting via an official social media account, or acting as an appointed 52 | representative at an online or offline event. Representation of a project may be 53 | further defined and clarified by project maintainers. 54 | 55 | ## Enforcement 56 | 57 | Instances of abusive, harassing, or otherwise unacceptable behavior may be 58 | reported by contacting the project team members (@hwoarang, @teorizop, @teorizop). 59 | All complaints will be reviewed and investigated and will result in a response that 60 | is deemed necessary and appropriate to the circumstances. The project team is 61 | obligated to maintain confidentiality with regard to the reporter of an incident. 62 | Further details of specific enforcement policies may be posted separately. 63 | 64 | Project maintainers who do not follow or enforce the Code of Conduct in good 65 | faith may face temporary or permanent repercussions as determined by other 66 | members of the project's leadership. 67 | 68 | ## Attribution 69 | 70 | This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, 71 | available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html 72 | 73 | [homepage]: https://www.contributor-covenant.org 74 | 75 | For answers to common questions about this code of conduct, see 76 | https://www.contributor-covenant.org/faq 77 | -------------------------------------------------------------------------------- /CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | # Contributing to this project 2 | 3 | Contributing to this project is as easy as opening a new pull request and make sure that CI tests are passing. 4 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM alpine:latest 2 | LABEL maintainer="markos@chandras.me" 3 | 4 | RUN apk add --no-cache bash ca-certificates git github-cli 5 | 6 | COPY delete-old-branches /usr/bin/delete-old-branches 7 | 8 | ENTRYPOINT ["/usr/bin/delete-old-branches"] 9 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Delete Old Branches Action 2 | 3 | ![Linting](https://github.com/beatlabs/delete-old-branches-action/workflows/Linting/badge.svg) 4 | 5 | ## Introduction 6 | 7 | This simple GitHub Action will delete branches and optionally tags that haven't received a commit recently. The time since last commit is configurable. 8 | 9 | The default behaviour is to exclude the default branch (main or master) and the Github protected branches. Default branch(es) can be overriden using the `default_branches` variable (e.g. `default_branches: develop` or for multiple default branches `default_branches: main,develop,my-default-branch`). 10 | 11 | Additional branches can be excluded using the `extra_protected_branch_regex` variable (see example below). 12 | Similarly, certain tags can be excluded using the `extra_protected_tag_regex` variable. 13 | Also, branches with open pull requests are being ignored by default (see example below). 14 | 15 | ## Disclaimer 16 | 17 | **Always** run the GitHub action in dry-run mode to ensure that it will do the right thing before you actually let it do it. Also make sure that you have a full copy of the repository (`git clone --mirror ...`) in case something goes bad 18 | 19 | ## Example usage 20 | 21 | ```yaml 22 | name: Cleanup old branches 23 | on: 24 | push: 25 | branches: 26 | - master 27 | - develop 28 | jobs: 29 | housekeeping: 30 | name: Cleanup old branches 31 | runs-on: ubuntu-latest 32 | steps: 33 | - name: Checkout repository 34 | uses: actions/checkout@v4 35 | - name: Run delete-old-branches-action 36 | uses: beatlabs/delete-old-branches-action@v0.0.10 37 | with: 38 | repo_token: ${{ github.token }} 39 | date: '3 months ago' 40 | dry_run: true 41 | delete_tags: true 42 | minimum_tags: 5 43 | extra_protected_branch_regex: ^(foo|bar)$ 44 | extra_protected_tag_regex: '^v.*' 45 | exclude_open_pr_branches: true 46 | ``` 47 | 48 | Once you are happy switch, `dry_run` to `false` so the action actually does the job 49 | 50 | Happy cleaning! 51 | -------------------------------------------------------------------------------- /action.yml: -------------------------------------------------------------------------------- 1 | # action.yml 2 | name: "Delete old branches" 3 | description: "Delete branches which are older than certain period of time" 4 | author: "Markos Chandras" 5 | inputs: 6 | repo_token: 7 | description: "The GITHUB_TOKEN secret" 8 | required: true 9 | date: 10 | description: "A git-log compatible date format" 11 | required: true 12 | dry_run: 13 | description: "Run in dry-run mode so no branches are deleted" 14 | required: false 15 | default: true 16 | delete_tags: 17 | description: "Also look for tags to delete" 18 | required: false 19 | default: false 20 | minimum_tags: 21 | description: "Minimum number of tags to keep" 22 | required: false 23 | default: false 24 | default_branches: 25 | description: "Default branch(es) to exclude" 26 | required: false 27 | default: main,master 28 | extra_protected_branch_regex: 29 | description: "grep extended (ERE) compatible regex for additional branches to exclude" 30 | required: false 31 | extra_protected_tag_regex: 32 | description: "grep extended (ERE) compatible regex for additional tags to exclude" 33 | required: false 34 | exclude_open_pr_branches: 35 | description: "Exclude branches that have an open pull request" 36 | required: false 37 | default: true 38 | outputs: 39 | was_dry_run: 40 | description: "Ran in dry-run mode so no branches were deleted" 41 | deleted_branches: 42 | description: "List of branches that were deleted" 43 | runs: 44 | using: "docker" 45 | image: "Dockerfile" 46 | -------------------------------------------------------------------------------- /delete-old-branches: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | set -eo pipefail 4 | 5 | [[ -n ${INPUT_REPO_TOKEN} ]] || { echo "Please set the REPO_TOKEN input"; exit 1; } 6 | [[ -n ${INPUT_DATE} ]] || { echo "Please specify a suitable date input for branch filtering"; exit 1; } 7 | 8 | REPO="${GITHUB_REPOSITORY}" 9 | DATE=${INPUT_DATE} 10 | DRY_RUN=${INPUT_DRY_RUN:-true} 11 | DELETE_TAGS=${INPUT_DELETE_TAGS:-false} 12 | MINIMUM_TAGS=${INPUT_MINIMUM_TAGS:-0} 13 | DEFAULT_BRANCHES=${INPUT_DEFAULT_BRANCHES:-main,master} 14 | EXCLUDE_BRANCH_REGEX=${INPUT_EXTRA_PROTECTED_BRANCH_REGEX:-^$} 15 | EXCLUDE_TAG_REGEX=${INPUT_EXTRA_PROTECTED_TAG_REGEX:-^$} 16 | EXCLUDE_OPEN_PR_BRANCHES=${INPUT_EXCLUDE_OPEN_PR_BRANCHES:-true} 17 | 18 | # used for GitHub CLI authentication 19 | export GITHUB_TOKEN=${INPUT_REPO_TOKEN} 20 | 21 | echo "was_dry_run=${DRY_RUN}" >> "$GITHUB_OUTPUT" 22 | 23 | deleted_branches=() 24 | 25 | default_branch_protected() { 26 | local br=${1} 27 | 28 | local default_branches 29 | default_branches=$(echo "${DEFAULT_BRANCHES}" | tr "," "\n") 30 | 31 | for default_branch in $default_branches; do 32 | if [[ "${br}" == "${default_branch}" ]]; then 33 | return 0 34 | fi 35 | done 36 | 37 | return 1 38 | } 39 | 40 | branch_protected() { 41 | local br=${1} 42 | 43 | protected=$(gh api "repos/${REPO}/branches/${br}" --jq '.protected') 44 | 45 | # If we got null then something else happened (like no access error etc) so 46 | # we can't determine the status for the branch 47 | case ${protected} in 48 | null) echo "Unable to determine status for branch: ${br}"; return 0 ;; 49 | true) return 0 ;; 50 | *) return 1 ;; 51 | esac 52 | } 53 | 54 | extra_branch_or_tag_protected() { 55 | local br=${1} ref="${2}" 56 | 57 | if [[ "${ref}" == "branch" ]]; then 58 | echo "${br}" | grep -qE "${EXCLUDE_BRANCH_REGEX}" 59 | elif [[ "${ref}" == "tag" ]]; then 60 | echo "${br}" | grep -qE "${EXCLUDE_TAG_REGEX}" 61 | fi 62 | 63 | return $? 64 | } 65 | 66 | is_pr_open_on_branch() { 67 | if [[ "${EXCLUDE_OPEN_PR_BRANCHES}" == false ]]; then 68 | return 1 69 | fi 70 | 71 | local br=${1} 72 | open_prs_branches=$(gh api "repos/${REPO}/pulls" --jq '.[].head.ref' --paginate) 73 | 74 | for pr_br in ${open_prs_branches}; do 75 | if [[ "${pr_br}" == "${br}" ]]; then 76 | return 0 77 | fi 78 | done 79 | 80 | return 1 81 | } 82 | 83 | delete_branch_or_tag() { 84 | local br=${1} ref="${2}" sha="${3}" 85 | deleted_branches+=("${br}") 86 | 87 | echo "Deleting: ${br}" 88 | echo "To recreate run: git branch '${br}' '${sha}'" 89 | if [[ "${DRY_RUN}" == false ]]; then 90 | status=$(gh api --method DELETE "repos/${REPO}/git/refs/${ref}/${br}" &> debug.log && echo ok || echo failed) 91 | 92 | case ${status} in 93 | ok) ;; 94 | *) echo "Deletion of branch ${br} failed with http_status=${status}" 95 | echo "===== Dumping log =====" 96 | [[ -f debug.log ]] && cat debug.log 97 | ;; 98 | esac 99 | else 100 | echo "dry-run mode. Nothing changed!" 101 | fi 102 | } 103 | 104 | main() { 105 | # fetch history etc 106 | local sha 107 | git config --global --add safe.directory "${GITHUB_WORKSPACE}" 108 | git fetch --prune --unshallow --tags 109 | for br in $(git ls-remote -q --heads --refs | sed "s@^.*heads/@@"); do 110 | if [[ -z "$(git log --oneline -1 --since="${DATE}" origin/"${br}")" ]]; then 111 | sha=$(git show-ref -s "origin/${br}") 112 | default_branch_protected "${br}" && echo "branch: ${br} is a default branch. Won't delete it" && continue 113 | branch_protected "${br}" && echo "branch: ${br} is likely protected. Won't delete it" && continue 114 | extra_branch_or_tag_protected "${br}" "branch" && echo "branch: ${br} is explicitly protected and won't be deleted" && continue 115 | is_pr_open_on_branch "${br}" && echo "branch: ${br} has an open pull request and won't be deleted" && continue 116 | delete_branch_or_tag "${br}" "heads" "${sha}" 117 | fi 118 | done 119 | echo "deleted_branches=${deleted_branches[*]}" >> "$GITHUB_OUTPUT" 120 | if [[ "${DELETE_TAGS}" == true ]]; then 121 | local tag_counter=1 122 | for br in $(git ls-remote -q --tags --refs | sed "s@^.*tags/@@" | sort -Vr); do 123 | if [[ -z "$(git log --oneline -1 --since="${DATE}" "${br}")" ]]; then 124 | if [[ ${tag_counter} -gt ${MINIMUM_TAGS} ]]; then 125 | extra_branch_or_tag_protected "${br}" "tag" && echo "tag: ${br} is explicitly protected and won't be deleted" && continue 126 | delete_branch_or_tag "${br}" "tags" 127 | else 128 | echo "Not deleting tag ${br} due to minimum tag requirement(min: ${MINIMUM_TAGS})" 129 | ((tag_counter+=1)) 130 | fi 131 | fi 132 | done 133 | fi 134 | } 135 | 136 | main "$@" 137 | --------------------------------------------------------------------------------