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@nilium nilium/git-mr
Last active Dec 27, 2018

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#!/usr/bin/env bash
# Copyright 2018 Noel Cower
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# git-mr: Simple script to open the URL for a new merge request for a GitLab
# repository.
#
# Note: Has no way of knowing something isn't a GitLab repository.
set -e
havecmd() {
[ -n "$(command -v "$@" 2>/dev/null)" ]
}
err() {
echo "ERR $*" 1>&2
exit 1
}
uriencode() {
jq -Rrns --arg in "$*" \
'$in|split("\n")|if last == "" then .[:-1] else . end|join(" ")|@uri'
}
if ! havecmd jq; then
err 'Required program missing: jq'
fi
ref="$(git rev-parse --abbrev-ref --symbolic-full-name @{u})"
if [ -z "$ref" ]; then
err "No upstream for branch: $(git rev-parse --abbrev-ref --symbolic-full-name @)"
fi
repo="${ref%%/*}"
if [ -z "$repo" ]; then
err "Unable to determine repository for ref: $ref"
fi
branch="${ref#$repo/}"
if [ -z "$branch" ]; then
err "Unable to determine ref in repository of ref: $ref"
fi
uri="$(git remote get-url "$repo")"
if [ -z "$uri" ]; then
err "Unable to determine URI of repository: $repo"
fi
scheme=https
suffix="/merge_requests/new?$(uriencode 'merge_request[source_branch]')=$(uriencode "${branch}")"
case "$uri" in
*@*:*) # SSH
uri="${uri#*@}"
domain="${uri%:*}"
path="/${uri#${domain}:}"
;;
https://*) # HTTPS
uri="${uri#https://}"
uri="${uri#*@}"
domain="${uri%%/*}"
path="${uri#${domain}}"
;;
http://*) # HTTP?
scheme=http # Why? Why do this?
uri="${uri#https://}"
uri="${uri#*@}"
domain="${uri%%/*}"
path="${uri#${domain}}"
;;
*)
err "Unrecognized URI: $uri"
;;
esac
: "${mrurl:=${scheme}://${domain}${path%.git}${suffix}}"
if havecmd open; then
open "$mrurl"
elif havecmd xdg-open; then
xdg-open "$mrurl" >/dev/null 2>&1
else
# Print URL if we can't open it
echo "$mrurl"
fi
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