Open a given file in a Github pull request from Sublime Merge

Diff Context.sublime-menu

[
    {
        "caption": "Open file in github PR",
        "command": "git",
        "args": {"argv": ["gh-pr-open-file", "$path"]}
    }
]

File.sublime-menu

[
    {
        "caption": "Open file in github PR",
        "command": "git",
        "args": {"argv": ["gh-pr-open-file", "$path"]}
    }
]

install.sh

git config --global alias.gh-pr-open-file '!f() {
    local FILE_PATH="$1"

    PR_URL=$(gh pr view | grep -oP "(?<=url\:\t).*")

    if [ -z "$PR_URL" ]; then
        echo "Cannot open: not able to find a github PR with current branch" >&2
        return 1
    fi

    FILE_PATH_CHECKSUM=$(echo -n "$FILE_PATH" | sha256sum | head -c 64)
    xdg-open "$PR_URL/files#diff-$FILE_PATH_CHECKSUM"
}; f'

Inspired by https://forum.sublimetext.com/t/github-gitlab-bitbucket-integration-commands-menu-items/53893

Requires github cli