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December 16, 2020 16:54
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Save phooky/8b473f30dad4b8ee160b6e2a07db6e78 to your computer and use it in GitHub Desktop.
A quick bash script for changing the "master" branch of your github repo(s) to an alternative of your choosing.
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| #!/bin/bash | |
| # There's a better way to do this! Use: | |
| # https://github.com/dfm/rename-github-default-branch | |
| # instead. | |
| # | |
| # Also: don't change the default branch name on your gists! Github appears to have them | |
| # locked to master; it will break your gist. | |
| set -e | |
| usage(){ | |
| echo "Usage: $0 [--user USERNAME] [--owner OWNER] [--token TOKEN] NEW_DEFAULT [PATH ...]" | |
| echo "Replace the 'master' branch of a github project with NEW_DEFAULT." | |
| echo "Suggested replacements: 'main', 'trunk', 'root', 'default', 'canon'" | |
| echo "If no path or paths to repositories are provided, operates on the" | |
| echo "current working directory." | |
| echo "" | |
| echo " -u, --user The github user (defaults to current username)" | |
| echo " -o, --owner The github project owner (defaults to user)" | |
| echo " -t, --token The github API token (defaults to pw auth)" | |
| echo " --no-delete Do not delete the 'master' branch from origin" | |
| echo "" | |
| echo "If no token is provided, (deprecated) password authentication will be used." | |
| exit 1 | |
| } | |
| DEFAULT="" | |
| OWNER=$USER | |
| REPO_PATHS=() | |
| while [ $# -gt 0 ]; do | |
| case "$1" in | |
| -t|--token) | |
| shift | |
| if [ -n "$1" ] && [ ${1:0:1} != "-" ]; then | |
| TOKEN="$1" | |
| shift | |
| else | |
| echo "Error: no token provided" >&2 | |
| usage | |
| fi | |
| ;; | |
| --no-delete) | |
| shift | |
| NO_DELETE=1 | |
| ;; | |
| -u|--user) | |
| shift | |
| if [ -n "$1" ] && [ ${1:0:1} != "-" ]; then | |
| USER="$1" | |
| shift | |
| else | |
| echo "Error: no user provided" >&2 | |
| usage | |
| fi | |
| ;; | |
| -o|--owner) | |
| shift | |
| if [ -n "$1" ] && [ ${1:0:1} != "-" ]; then | |
| OWNER="$1" | |
| shift | |
| else | |
| echo "Error: no owner provided" >&2 | |
| usage | |
| fi | |
| ;; | |
| -*|--*=) | |
| echo "Error: unknown flag $1" >&2 | |
| usage | |
| ;; | |
| *) # preserve positional arguments | |
| if [ -z "${DEFAULT}" ]; then | |
| DEFAULT="$1" | |
| else | |
| REPO_PATHS+=("$1") | |
| fi | |
| shift | |
| ;; | |
| esac | |
| done | |
| if [ -z "${REPO_PATHS[*]}" ]; then | |
| REPO_PATHS="." | |
| fi | |
| #echo "user ${USER} owner ${OWNER} default ${DEFAULT} paths ${REPO_PATHS[*]}" | |
| if [ -z "${DEFAULT}" ]; then | |
| echo "Error: new default branch name not provided!" >&2 | |
| usage | |
| fi | |
| if [ -n "${TOKEN}" ]; then | |
| USER=${USER}:${TOKEN} | |
| fi | |
| change_current_master() { | |
| git checkout master | |
| git branch -m ${DEFAULT} | |
| git push origin -u ${DEFAULT} | |
| curl -i -u ${USER} --header "Content-Type: application/json" --request PATCH --data "{\"name\":\"${REPO}\", \"default_branch\": \"${DEFAULT}\" }" https://api.github.com/repos/${OWNER}/${REPO} | |
| if [ -z "${NO_DELETE}" ]; then | |
| git push origin --delete master | |
| fi | |
| } | |
| for REPO_PATH in "${REPO_PATHS[@]}"; do | |
| pushd ${REPO_PATH} >/dev/null | |
| TL=`git rev-parse --show-toplevel` | |
| REPO=`basename ${TL}` | |
| echo "Transitioning ${REPO} from master -> ${DEFAULT} (in `pwd`)" | |
| change_current_master | |
| popd >/dev/null | |
| done |
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