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#!/usr/bin/env bash
# Copyright (c) 2019 Teddy Wing
#
# This file is part of Code Review.
#
# Code Review is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Code Review is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Code Review. If not, see <https://www.gnu.org/licenses/>.
GIT_ROOT="$(git rev-parse --show-toplevel)"
DATABASE="${GIT_ROOT}/.git/info/code-review.sqlite"
function create_database () {
sqlite3 "$DATABASE" <<-SQL
BEGIN TRANSACTION;
CREATE TABLE IF NOT EXISTS merge_bases (
id INTEGER PRIMARY KEY,
head TEXT NOT NULL,
base TEXT NOT NULL
);
COMMIT;
SQL
}
function create_database_if_not_exists () {
if [ ! -f "$DATABASE" ]; then
create_database
fi
}
function create_merge_base () {
local head="$1"
local base="$2"
# TODO: Change to upsert or equivalent
sqlite3 "$DATABASE" <<-SQL
BEGIN TRANSACTION;
UPDATE merge_bases
SET base = '$base'
WHERE head = '$head';
INSERT INTO merge_bases
(head, base)
SELECT
'$head',
'$base'
WHERE (SELECT changes() = 0);
COMMIT;
SQL
}
function create_merge_base_from_current () {
local base="$1"
create_merge_base "$(current_branch)" "$base"
}
function get_merge_base () {
local head="$(current_branch)"
local default_base='master'
if git config remote.origin.url > /dev/null; then
default_base='origin/master'
fi
sqlite3 "$DATABASE" <<-SQL
BEGIN TRANSACTION;
SELECT ifnull(max(base), '$default_base')
FROM merge_bases
WHERE head = '$head'
LIMIT 1;
COMMIT;
SQL
}
function current_branch () {
git rev-parse --abbrev-ref HEAD
}
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