#!/usr/bin/python3
# GAnarchy - project homepage generator
# Copyright (C) 2019 Soni L.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see .
import sqlite3
import click
import os
import subprocess
import hashlib
import jinja2
# default HTML, can be overridden in $XDG_DATA_HOME/ganarchy/template.html or the $XDG_DATA_DIRS (TODO)
TEMPLATE = """
{{ project_title }}
{% for url, msg, img in repos %}
- {{ url|e }}: {{ msg|e }}
{% endfor %}
Powered by GAnarchy. AGPLv3-licensed. Source Code.
"""
try:
data_home = os.environ['XDG_DATA_HOME']
except KeyError:
data_home = ''
if not data_home:
data_home = os.environ['HOME'] + '/.local/share'
data_home = data_home + "/ganarchy"
try:
cache_home = os.environ['XDG_CACHE_HOME']
except KeyError:
cache_home = ''
if not cache_home:
cache_home = os.environ['HOME'] + '/.cache'
cache_home = cache_home + "/ganarchy"
@click.group()
def ganarchy():
pass
@ganarchy.command()
def initdb():
"""Initializes the ganarchy database"""
os.makedirs(data_home, exist_ok=True)
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''CREATE TABLE repos (url TEXT PRIMARY KEY, active INT)''')
c.execute('''CREATE TABLE repo_history (entry INTEGER PRIMARY KEY ASC AUTOINCREMENT, url TEXT, count INTEGER, head_commit TEXT)''')
c.execute('''CREATE TABLE config (git_commit TEXT, project_title TEXT)''')
c.execute('''INSERT INTO config VALUES ('', '')''')
conn.commit()
conn.close()
@ganarchy.command()
@click.argument('commit')
def set_commit(commit):
"""Sets the commit that represents the project"""
import re
if not re.fullmatch("[a-fA-F0-9]{40}", commit):
raise click.BadArgumentUsage("COMMIT must be a git commit hash")
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''UPDATE config SET git_commit=?''', (commit,))
conn.commit()
conn.close()
@ganarchy.command()
@click.argument('project-title')
def set_project_title(project_title):
"""Sets the project title"""
import re
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''UPDATE config SET project_title=?''', (project_title,))
conn.commit()
conn.close()
@ganarchy.group()
def repo():
"""Modifies repos to track"""
@repo.command()
@click.argument('url')
def add(url):
"""Adds a repo to track"""
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''INSERT INTO repos VALUES (?, 0)''', (url,))
conn.commit()
conn.close()
@repo.command()
@click.argument('url')
def enable(url):
"""Enables tracking of a repo"""
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''UPDATE repos SET active=1 WHERE url=?''', (url,))
conn.commit()
conn.close()
@repo.command()
@click.argument('url')
def disable(url):
"""Disables tracking of a repo"""
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''UPDATE repos SET active=0 WHERE url=?''', (url,))
conn.commit()
conn.close()
@repo.command()
@click.argument('url')
def remove(url):
"""Stops tracking a repo"""
click.confirm("WARNING: This operation does not delete the commits associated with the given repo! Are you sure you want to continue? This operation cannot be undone.")
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''DELETE FROM repos WHERE url=?''', (url,))
c.execute('''DELETE FROM repo_history WHERE url=?''', (url,))
conn.commit()
conn.close()
@ganarchy.command()
def cron_target():
"""Runs ganarchy as a cron target"""
def handle_target(url, project_commit):
branchname = hashlib.sha256(url.encode("utf-8")).hexdigest()
try:
pre_hash = subprocess.check_output(["git", "-C", cache_home, "show", branchname, "-s", "--format=%H", "--"], stderr=subprocess.DEVNULL)
except subprocess.CalledProcessError:
pre_hash = None
try:
subprocess.check_output(["git", "-C", cache_home, "fetch", "-q", url, "+HEAD:" + branchname], stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
# This may error for various reasons, but some are important: dead links, etc
click.echo(e.output, err=True)
return None
post_hash = subprocess.check_output(["git", "-C", cache_home, "show", branchname, "-s", "--format=%H", "--"], stderr=subprocess.DEVNULL)
if not pre_hash:
pre_hash = post_hash
try:
count = subprocess.check_output(["git", "-C", cache_home, "rev-list", "--count", pre_hash + ".." + post_hash])
except subprocess.CalledProcessError:
count = 0 # force-pushed
try:
subprocess.check_call(["git", "-C", cache_home, "merge-base", "--is-ancestor", project_commit, branchname], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
return count, post_hash, subprocess.check_output(["git", "-C", cache_home, "show", branchname, "-s", "--format=%B", "--"], stderr=subprocess.DEVNULL)
except subprocess.CalledProcessError:
return None
os.makedirs(cache_home, exist_ok=True)
subprocess.call(["git", "-C", cache_home, "init", "-q"])
conn = sqlite3.connect(data_home + "/ganarchy.db")
c = conn.cursor()
c.execute('''SELECT git_commit, project_title FROM config''')
(project_commit, project_title) = c.fetchone()
entries = []
generate_html = []
for (url,) in c.execute("""SELECT url FROM repos WHERE active == 1"""):
result = handle_target(url, project_commit)
if result is not None:
count, post_hash, msg = result
entries.append((url, count, post_hash))
generate_html.append((url, msg))
c.executemany('''INSERT INTO repo_history VALUES (NULL, ?, ?, ?)''', entries)
conn.commit()
html_entries = []
for (url, msg) in generate_html:
history = c.execute('''SELECT count FROM repo_history WHERE url == ? ORDER BY entry ASC''', (url,)).fetchall()
# TODO process history into SVG
html_entries.append((url, msg, ""))
template = jinja2.Template(TEMPLATE)
click.echo(template.render(project_title = project_title, repos = html_entries))
if __name__ == "__main__":
ganarchy()