#!/usr/bin/env bash


# This file is part of scripts.

# scripts 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, version 3.

# scripts 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 scripts.  If not, see <https://www.gnu.org/licenses/>.

# Original author: Maciej Barć <xgqt@riseup.net>
# Copyright (c) 2020, src_prepare group
# Licensed under the GNU GPL v3 License

# CI Ebuild commit tester
# Run this in a overlay directory.
# This script uses pkgcheck and repoman
# to check the latest commit for QA issues.


# Check if we are in a git repo
if ! git status >/dev/null; then
    printf "%s\n" "Not a git repo... exiting" >> /dev/stderr
    exit 1
fi


# Variables needed for tools
[ -z "${ARCH}" ] && export ARCH=x86_64
[ -z "${ACCEPT_KEYWORDS}" ] && export ACCEPT_KEYWORDS='**'

# create "eclass"
# apparently pkgcheck needs it
# "pkgcheck scan: error: failed running git: fatal: eclass: no such path in the working tree."
[ -d eclass ] || mkdir eclass


# First test for a whole repo
# This will likely exit firh error, because repoman
# has to download some files (metadata.xsd)
# We do that so we can truthfully test the actual latest commit
printf "%s\n" \
    ">>> Starting full test" \
    "Running repoman -Idix"
repoman -Idix
printf "%s\n" "Running pkgcheck scan"
pkgcheck scan


printf "%s\n" ">>> Starting latest commit test"

test_success=true

# Use pkgchek
printf "%s\n" "Running pkgcheck scan --commits"
pkgcheck scan --commits || test_success=false

# Iterate through changed files in last commit
# For each of these use dirname to change directory
# to the one where the changed file resides
# and run repoman in there
for file in $(git diff --name-only HEAD HEAD~1)
do
    commit_dir="$(dirname "${file}")"

    # skip these directories
    [[ "${commit_dir}" = *eclass ]] && continue
    [[ "${commit_dir}" = *files ]] && continue
    [[ "${commit_dir}" = *licenses* ]] && continue
    [[ "${commit_dir}" = *metadata* ]] && continue
    [[ "${commit_dir}" = *profiles ]] && continue

    if cd "${commit_dir}"
    then
        printf "\n%s\n" \
            "Directory $(pwd):" \
            "Running repoman -Idix"
        repoman -Idix || test_success=false
        cd - >/dev/null || return
    fi
done

# If any of the QA tools fail the test will fail
if [ ${test_success} = false ]
then
    printf "%s\n" ">>> Exiting with failure due to previous errors..." >> /dev/stderr
    exit 1
else
    exit 0
fi