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November 9, 2023 15:04
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Save wilensky/98475be39f3a6a3c54e2611931746283 to your computer and use it in GitHub Desktop.
Script recreates an existing Git tag by removing it and creating on the same commit. Useful for checking idempotent triggers or dropping large amount of tags.
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| #!/usr/bin/env bash | |
| # tag.sh -t my-awesome-tag@1.2.3 -dcyv | |
| # | |
| # -d Deletes tags | |
| # -c Creates tag on the same commit | |
| # -y Non-interactive mode (always YES) | |
| # -v Slightly increased verbosity | |
| TAG='' | |
| OPT_DEL=0 | |
| OPT_CREATE=0 | |
| YES_MAN=0 | |
| VERBOSE=0 | |
| while getopts ":dcyvt:" OPTION; do | |
| case "$OPTION" in | |
| t) # tag name | |
| TAG=$OPTARG | |
| ;; | |
| d) # drop tag | |
| OPT_DEL=1 | |
| ;; | |
| c) # create same tag | |
| OPT_CREATE=1 | |
| ;; | |
| y) # all yes | |
| YES_MAN=1 | |
| ;; | |
| v) # verbose | |
| VERBOSE=1 | |
| ;; | |
| \?) # Invalid option | |
| echo "Error: Invalid option -$OPTARG" | |
| exit;; | |
| :) | |
| echo "Missing option argument for -$OPTARG" >&2 | |
| exit 1;; | |
| *) | |
| echo "Unimplemented option: -$option" >&2 | |
| exit 1;; | |
| esac | |
| done | |
| if [ -z "${TAG}" ]; then | |
| echo "Empty tag! Aborting ..."; | |
| exit 1 | |
| fi | |
| COMMIT=$(git rev-list -n 1 "${TAG}") | |
| if [ $? != 0 ] || [ -z "$COMMIT" ]; then | |
| echo ' Tag not found!' | |
| exit 2; | |
| fi | |
| echo "Tag: ${TAG} (${COMMIT})" | |
| function confirm { | |
| while true; do | |
| read -p "$* [y/n]: " yn | |
| case $yn in | |
| [Yy]*) return 0 ;; | |
| [Nn]*) return 1 ;; | |
| esac | |
| done | |
| } | |
| if [[ $YES_MAN == 0 ]]; then | |
| confirm "Continue?" | |
| if [[ $? == 1 ]]; then | |
| echo "Aborted ..." | |
| fi | |
| fi | |
| if [[ $OPT_DEL == 1 ]]; then | |
| [[ $VERBOSE == 1 ]] && echo "- Removing remote tag" | |
| git push origin :$TAG | |
| if [[ $? != 0 ]]; then | |
| echo " ! Failed to remove remote tag ..." | |
| exit 120 | |
| fi | |
| [[ $VERBOSE == 1 ]] && echo "- Removing local tag" | |
| git tag -d $TAG | |
| if [[ $? != 0 ]]; then | |
| echo " ! Failed to remove local tag ..." | |
| exit 121 | |
| fi | |
| fi | |
| if [[ $OPT_CREATE == 1 ]]; then | |
| [[ $VERBOSE == 1 ]] && echo "+ Re-creating tag" | |
| git tag ${TAG} ${COMMIT} | |
| if [[ $? != 0 ]]; then | |
| echo " ! Failed to re-create tag ..." | |
| exit 122 | |
| fi | |
| [[ $VERBOSE == 1 ]] && echo "+ Pushing tag" | |
| git push origin $TAG | |
| if [[ $? != 0 ]]; then | |
| echo " ! Failed to push tag ..." | |
| exit 123 | |
| fi | |
| fi |
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