git-bl

#!/bin/bash
set -o errexit
set -o pipefail
set -o nounset
set -o noclobber

strip-trailing-whitespace() {
    sed 's/[[:space:]]*$//'
}

main() {
    local -r filter_branch_name="sed 's/^[* ]*//' | cut -d ' ' -f1 -"
    local -r filter_branch="echo {} | $filter_branch_name | head -1"
    local -r filter_branches="printf '%s\n' {+} | $filter_branch_name"
    local -r reload="git branch --color=always -vv $*"

    local -r fzf_args=(
        --preview-label="[ Git Log ]"
        --preview="$filter_branches | xargs git-gl --no-fzf"

        --header-first
        --header="<enter>  switch   <ctrl-b> browse   <delete> delete
<ctrl-f> fetch    <ctrl-p> pull     <ctrl-h> copy"

        # Open the selected branch in a interactive browser to drill deeper
        --bind="ctrl-b:execute($filter_branch | xargs git-gl)"

        # Copy the selected branch name(s) to clipboard
        --bind="ctrl-h:execute(
            $(declare -f strip-trailing-whitespace)
            $filter_branches | strip-trailing-whitespace | clip
        )"

        # Switch to the selected branch
        --bind="enter:become($filter_branch | sed 's|^origin/||' | xargs git switch)"

        # Delete the selected branch(es)
        --bind="del:execute($filter_branches | xargs git branch --delete --force)+reload($reload)"

        # Fetch
        --bind="ctrl-f:execute(git fetch)+reload($reload)"

        # Pull selected branch(es), even if they're not checked out
        --bind="ctrl-p:execute($filter_branches | xargs git-pull-branches)+reload($reload)"
    )

    if ! git branch --color=always -vv "$@" | fzf \
        --ansi \
        --no-sort \
        --reverse \
        --exit-0 \
        --multi \
        "${fzf_args[@]}" \
        ; then
        if [[ $? -eq 130 ]]; then
            true
        fi
    fi
}

main "$@"