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delete-action-branches: Add ability to exclude certain tags pattern #16

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merged 1 commit into from
Feb 8, 2022
Merged

delete-action-branches: Add ability to exclude certain tags pattern #16

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2 changes: 2 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
This simple GitHub Action will delete branches and optionally tags that haven't received a commit recently. The time since last commit is configurable.

The default behaviour is to exclude Github protected branches. Additional branches can be excluded using the `extra_protected_branch_regex` variable (see example below).
Similarly, certain tags can be excluded using the `extra_protected_tag_regex` variable

## Disclaimer
**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
Expand Down Expand Up @@ -34,6 +35,7 @@ jobs:
delete_tags: true
minimum_tags: 5
extra_protected_branch_regex: ^(foo|bar)$
extra_protected_tag_regex: '^v.*'
```
Once you are happy switch, `dry_run` to `false` so the action actually does the job

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3 changes: 3 additions & 0 deletions action.yml
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Expand Up @@ -24,6 +24,9 @@ inputs:
extra_protected_branch_regex:
description: 'grep extended (ERE) compatible regex for additional branches to exclude'
required: false
extra_protected_tag_regex:
description: 'grep extended (ERE) compatible regex for additional tags to exclude'
required: false

runs:
using: 'docker'
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14 changes: 10 additions & 4 deletions delete-old-branches
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Expand Up @@ -13,6 +13,7 @@ DRY_RUN=${INPUT_DRY_RUN:-true}
DELETE_TAGS=${INPUT_DELETE_TAGS:-false}
MINIMUM_TAGS=${INPUT_MINIMUM_TAGS:-0}
EXCLUDE_BRANCH_REGEX=${INPUT_EXTRA_PROTECTED_BRANCH_REGEX:-^$}
EXCLUDE_TAG_REGEX=${INPUT_EXTRA_PROTECTED_TAG_REGEX:-^$}

branch_protected() {
local br=${1}
Expand All @@ -29,10 +30,14 @@ branch_protected() {
esac
}

extra_branch_protected() {
local br=${1}
extra_branch_or_tag_protected() {
local br=${1} ref="${2}"

echo "${br}" | grep -qE "${EXCLUDE_BRANCH_REGEX}"
if [[ "${ref}" == "branch" ]]; then
echo "${br}" | grep -qE "${EXCLUDE_BRANCH_REGEX}"
elif [[ "${ref}" == "tag" ]]; then
echo "${br}" | grep -qE "${EXCLUDE_TAG_REGEX}"
fi

return $?
}
Expand Down Expand Up @@ -63,7 +68,7 @@ main() {
for br in $(git ls-remote -q --heads --refs | sed "s@^.*heads/@@"); do
if [[ -z "$(git log --oneline -1 --since="${DATE}" origin/"${br}")" ]]; then
branch_protected "${br}" && echo "branch: ${br} is likely protected. Won't delete it" && continue
extra_branch_protected "${br}" && echo "branch: ${br} is explicitly protected and won't be deleted" && continue
extra_branch_or_tag_protected "${br}" "branch" && echo "branch: ${br} is explicitly protected and won't be deleted" && continue
delete_branch_or_tag "${br}" "heads"
fi
done
Expand All @@ -72,6 +77,7 @@ main() {
for br in $(git ls-remote -q --tags --refs | sed "s@^.*tags/@@" | sort -rn); do
if [[ -z "$(git log --oneline -1 --since="${DATE}" "${br}")" ]]; then
if [[ ${tag_counter} -gt ${MINIMUM_TAGS} ]]; then
extra_branch_or_tag_protected "${br}" "tag" && echo "tag: ${br} is explicitely proetected and won't be deleted" && continue
delete_branch_or_tag "${br}" "tags"
else
echo "Not deleting tag ${br} due to minimum tag requirement(min: ${MINIMUM_TAGS})"
Expand Down