termux-packages/scripts/build/ci/determine_git_changes.sh

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#!/bin/bash
##
## Script for detecting modified packages.
## Designed for use with Travis or Gitlab CI.
##
## Leonid Plyushch <leonid.plyushch@gmail.com> (C) 2019
##
## This program 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.
##
## This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
##
REPO_DIR=$(realpath "$(dirname "$(realpath "$0")")/../../../")
cd "$REPO_DIR" || {
echo "[!] Failed to cd into '$REPO_DIR'." >&2
exit 1
}
if [ -n "$TRAVIS_COMMIT_RANGE" ]; then
# We are on Travis CI.
UPDATED_FILES=$(git diff-tree --no-commit-id --name-only -r "${TRAVIS_COMMIT_RANGE//.../..}" 2>/dev/null | grep -P "packages/")
elif [ -n "$CI_COMMIT_SHA" ]; then
# We are on Gitlab CI.
# Make sure that we can use commit range.
if [ -z "$CI_COMMIT_BEFORE_SHA" ]; then
echo "[!] CI_COMMIT_BEFORE_SHA is not set." >&2
exit 1
fi
if [ "$CI_COMMIT_BEFORE_SHA" = "0000000000000000000000000000000000000000" ]; then
UPDATED_FILES=$(git diff-tree --no-commit-id --name-only -r "$CI_COMMIT_SHA" 2>/dev/null | grep -P "packages/")
else
UPDATED_FILES=$(git diff-tree --no-commit-id --name-only -r "${CI_COMMIT_BEFORE_SHA}..${CI_COMMIT_SHA}" 2>/dev/null | grep -P "packages/")
fi
else
# Something wrong.
echo "[!] Cannot determine git commit range." >&2
echo " Did you executed this script under CI ?" >&2
exit 1
fi
## Determine modified packages.
existing_dirs=""
for dir in $(echo "$UPDATED_FILES" | grep -oP "packages/[a-z0-9+._-]+" | sort | uniq); do
if [ -d "$REPO_DIR/$dir" ]; then
existing_dirs+=" $dir"
fi
done
PACKAGE_DIRS="$existing_dirs"
unset dir existing_dirs
## Get names of modified packages.
PACKAGE_NAMES=$(echo "$PACKAGE_DIRS" | sed 's/packages\///g')
if [ -z "$PACKAGE_NAMES" ]; then
echo "[*] No modified packages found." >&2
exit 0
fi
## Print names of modified packages.
for pkg in $PACKAGE_NAMES; do
echo "$pkg"
done