Contextually Open GitHub via the Command Line
Here's a little fish function I whipped up to open GitHub in the web browser depending on the current state of the repo:
function gv --description 'Opens the current repository in the browser, trying first to open a pull request, then a branch, then the repository itself'
set -l current_branch (git symbolic-ref --short HEAD)
set -l pr_url (gh pr list --head "$current_branch" --state OPEN --json url --jq '.[0].url')
git rev-parse --abbrev-ref $current_branch@{upstream} >/dev/null 2>&1
set -l remote_branch_exists $status # 0 if the branch exists, something else if it doesn't
if test -n "$pr_url"
echo "Opening pull request $pr_url"
open $pr_url
else if test "$remote_branch_exists" -eq 0
and test "$current_branch" != main
and test "$current_branch" != master
echo "Opening branch '$current_branch'"
gh browse --branch $current_branch
else
echo "Opening repository"
gh browse
end
end
In summary:
- First, if there is an existing pull request for the current branch, open that.
- Then, if there is a remote branch being tracked by the local branch, open that.
- Finally, if none of the above match, just open the repo's main page.
I know fish isn't as popular as the venerable bash, so here's a version as a bash script:
(I haven't fully tested this version, so it may not work as expected.)
#!/bin/bash
CURRENT_BRANCH=$(git symbolic-ref --short HEAD)
PR_URL=$(gh pr list --head "${CURRENT_BRANCH}" --state OPEN --json url --jq '.[0].url')
git rev-parse --abbrev-ref "${CURRENT_BRANCH}@{upstream}" >/dev/null 2>&1
REMOTE_BRANCH_EXISTS=$? # 0 if the branch exists, something else if it doesn't
if [[ -n "${PR_URL}" ]]; then
echo "Opening pull request ${PR_URL}"
open "${PR_URL}"
elif [[ "$REMOTE_BRANCH_EXISTS" == 0 && "${CURRENT_BRANCH}" != main && "${CURRENT_BRANCH}" != master ]]; then
echo "Opening branch '${CURRENT_BRANCH}'"
gh browse --branch "${CURRENT_BRANCH}"
else
echo "Opening repository"
gh browse
fi