Completely reworked configuration

This reduces potential legal issues

ganarchy.py

@@ -24,31 +24,37 @@ import hashlib
 import hmac
 import jinja2
 import re
+import qtoml
+from collections import defaultdict
+from urllib.parse import urlparse
 
 MIGRATIONS = {
-        "gen-index": (
+        "toml-config": (
                 (
-                    """ALTER TABLE "config" ADD COLUMN "title" TEXT"""),
-                (),
-                "supports generating an index page"
+                    '''UPDATE "repo_history" SET "project" = (SELECT "git_commit" FROM "config") WHERE "project" IS NULL''',
+                    '''ALTER TABLE "repos" RENAME TO "repos_old"''',),
+                (
+                    '''UPDATE "repo_history" SET "project" = NULL WHERE "project" = (SELECT "git_commit" FROM "config")''',
+                    '''ALTER TABLE "repos_old" RENAME TO "repos"''',),
+                "switches to toml config format. the old 'repos' table is preserved as 'repos_old'"
             ),
         "better-project-management": (
                 (
-                    """ALTER TABLE "repos" ADD COLUMN "branch" TEXT""",
-                    """ALTER TABLE "repos" ADD COLUMN "project" TEXT""",
-                    """CREATE UNIQUE INDEX "repos_url_branch_project" ON "repos" ("url", "branch", "project")""",
-                    """CREATE INDEX "repos_project" ON "repos" ("project")""",
-                    """ALTER TABLE "repo_history" ADD COLUMN "branch" TEXT""",
-                    """ALTER TABLE "repo_history" ADD COLUMN "project" TEXT""",
-                    """CREATE INDEX "repo_history_url_branch_project" ON "repo_history" ("url", "branch", "project")"""),
+                    '''ALTER TABLE "repos" ADD COLUMN "branch" TEXT''',
+                    '''ALTER TABLE "repos" ADD COLUMN "project" TEXT''',
+                    '''CREATE UNIQUE INDEX "repos_url_branch_project" ON "repos" ("url", "branch", "project")''',
+                    '''CREATE INDEX "repos_project" ON "repos" ("project")''',
+                    '''ALTER TABLE "repo_history" ADD COLUMN "branch" TEXT''',
+                    '''ALTER TABLE "repo_history" ADD COLUMN "project" TEXT''',
+                    '''CREATE INDEX "repo_history_url_branch_project" ON "repo_history" ("url", "branch", "project")''',),
                 (
-                    """DELETE FROM "repos" WHERE "branch" IS NOT NULL OR "project" IS NOT NULL""",
-                    """DELETE FROM "repo_history" WHERE "branch" IS NOT NULL OR "project" IS NOT NULL"""),
+                    '''DELETE FROM "repos" WHERE "branch" IS NOT NULL OR "project" IS NOT NULL''',
+                    '''DELETE FROM "repo_history" WHERE "branch" IS NOT NULL OR "project" IS NOT NULL''',),
                 "supports multiple projects, and allows choosing non-default branches"
             ),
         "test": (
-                ("""-- apply""",),
-                ("""-- revert""",),
+                ('''-- apply''',),
+                ('''-- revert''',),
                 "does nothing"
             )
         }
@@ -89,16 +95,16 @@ def get_template_loader():
         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
+        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 Affero General Public License for more details.
+        GNU General Public License for more details.
 
-        You should have received a copy of the GNU Affero General Public License
+        You should have received a copy of the GNU General Public License
         along with this program.  If not, see <https://www.gnu.org/licenses/>.
         -->
         <title>{{ ganarchy.title|e }}</title>
@@ -120,6 +126,17 @@ def get_template_loader():
         </p>
     </body>
 </html>
+""",
+            ## index.toml
+            'index.toml': """# Generated by GAnarchy
+
+{%- for project, repos in config.projects.items() %}
+[projects.{{project}}]
+{%- for repo_url, branches in repos.items() %}{% for branch, options in branches.items() %}{% if options.active %}
+"{{repo_url|tomle}}".{% if branch %}"{{branch|tomle}}"{% else %}HEAD{% endif %} = { active=true }
+{%- endif %}{% endfor %}
+{%- endfor %}
+{% endfor -%}
 """,
             ## project.html FIXME
             'project.html': """<!DOCTYPE html>
@@ -131,16 +148,16 @@ def get_template_loader():
         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
+        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 Affero General Public License for more details.
+        GNU General Public License for more details.
 
-        You should have received a copy of the GNU Affero General Public License
+        You should have received a copy of the GNU General Public License
         along with this program.  If not, see <https://www.gnu.org/licenses/>.
         -->
         <title>{{ project_title|e }}</title>
@@ -169,6 +186,24 @@ def get_template_loader():
         })
     ])
 
+tomletrans = str.maketrans({
+    0: '\\u0000', 1: '\\u0001', 2: '\\u0002', 3: '\\u0003', 4: '\\u0004',
+    5: '\\u0005', 6: '\\u0006', 7: '\\u0007', 8: '\\b', 9: '\\t', 10: '\\n',
+    11: '\\u000B', 12: '\\f', 13: '\\r', 14: '\\u000E', 15: '\\u000F',
+    16: '\\u0010', 17: '\\u0011', 18: '\\u0012', 19: '\\u0013', 20: '\\u0014',
+    21: '\\u0015', 22: '\\u0016', 23: '\\u0017', 24: '\\u0018', 25: '\\u0019',
+    26: '\\u001A', 27: '\\u001B', 28: '\\u001C', 29: '\\u001D', 30: '\\u001E',
+    31: '\\u001F', '"': '\\"', '\\': '\\\\'
+    })
+def tomlescape(value):
+    return value.translate(tomletrans)
+
+def get_env():
+    env = jinja2.Environment(loader=get_template_loader(), autoescape=False)
+    env.filters['tomlescape'] = tomlescape
+    env.filters['tomle'] = env.filters['tomlescape']
+    return env
+
 
 @click.group()
 def ganarchy():
@@ -180,118 +215,8 @@ def initdb():
     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, "branch" TEXT, "project" TEXT)''')
-    c.execute('''CREATE UNIQUE INDEX "repos_url_branch_project" ON "repos" ("url", "branch", "project")''')
-    c.execute('''CREATE INDEX "repos_project" ON "repos" ("project")''')
-    c.execute('''CREATE INDEX "repos_active" ON "repos" ("active")''')
     c.execute('''CREATE TABLE "repo_history" ("entry" INTEGER PRIMARY KEY ASC AUTOINCREMENT, "url" TEXT, "count" INTEGER, "head_commit" TEXT, "branch" TEXT, "project" TEXT)''')
     c.execute('''CREATE INDEX "repo_history_url_branch_project" ON "repo_history" ("url", "branch", "project")''')
-    c.execute('''CREATE TABLE "config" ("git_commit" TEXT, "base_url" TEXT, "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."""
-    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('base-url')
-def set_base_url(base_url):
-    """Sets the GAnarchy instance's base URL. Used for the URI handler."""
-    conn = sqlite3.connect(data_home + "/ganarchy.db")
-    c = conn.cursor()
-    c.execute('''UPDATE "config" SET "base_url"=?''', (base_url,))
-    conn.commit()
-    conn.close()
-
-@ganarchy.command()
-@click.argument('title')
-def set_title(title):
-    """Sets the GAnarchy instance's title. This title is displayed on the index."""
-    conn = sqlite3.connect(data_home + "/ganarchy.db")
-    c = conn.cursor()
-    c.execute('''UPDATE "config" SET "title"=?''', (title,))
-    conn.commit()
-    conn.close()
-
-# TODO move --branch into here?
-@ganarchy.group()
-def repo():
-    """Modifies repos to track."""
-
-@repo.command()
-@click.option('--branch', default=None, help="Sets the branch to be used for the repo")
-@click.option('--project', default=None, help="Sets the project commit to be used for the repo")
-@click.option('--disabled', default=False, is_flag=True, help="Mark the repo as disabled")
-@click.argument('url')
-def add(branch, project, disabled, url):
-    """Adds a repo to track."""
-    conn = sqlite3.connect(data_home + "/ganarchy.db")
-    c = conn.cursor()
-    c.execute('''SELECT "git_commit", "base_url" FROM "config"''')
-    (project_commit, base_url) = c.fetchone()
-    if project_commit == project:
-        project = None
-    c.execute('''INSERT INTO "repos" ("url", "active", "branch", "project") VALUES (?, ?, ?, ?)''', (url, int(not disabled), branch, project))
-    conn.commit()
-    conn.close()
-
-@repo.command()
-@click.option('--branch', default=None, help="Sets the branch to be used for the repo")
-@click.option('--project', default=None, help="Sets the project commit to be used for the repo")
-@click.argument('url')
-def enable(branch, project, url):
-    """Enables tracking of a repo."""
-    conn = sqlite3.connect(data_home + "/ganarchy.db")
-    c = conn.cursor()
-    c.execute('''SELECT "git_commit", "base_url" FROM "config"''')
-    (project_commit, base_url) = c.fetchone()
-    if project_commit == project:
-        project = None
-    c.execute('''UPDATE "repos" SET "active"=1 WHERE "url"=? AND "branch" IS ? AND "project" IS ?''', (url, branch, project))
-    conn.commit()
-    conn.close()
-
-@repo.command()
-@click.option('--branch', default=None, help="Sets the branch to be used for the repo")
-@click.option('--project', default=None, help="Sets the project commit to be used for the repo")
-@click.argument('url')
-def disable(branch, project, url):
-    """Disables tracking of a repo."""
-    conn = sqlite3.connect(data_home + "/ganarchy.db")
-    c = conn.cursor()
-    c.execute('''SELECT "git_commit", "base_url" FROM "config"''')
-    (project_commit, base_url) = c.fetchone()
-    if project_commit == project:
-        project = None
-    c.execute('''UPDATE repos SET "active"=0 WHERE "url"=? AND "branch" IS ? AND "project" IS ?''', (url, branch, project))
-    conn.commit()
-    conn.close()
-
-@repo.command()
-@click.option('--branch', default=None, help="Sets the branch to be used for the repo")
-@click.option('--project', default=None, help="Sets the project commit to be used for the repo")
-@click.argument('url')
-def remove(branch, project, 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('''SELECT "git_commit", "base_url" FROM "config"''')
-    (project_commit, base_url) = c.fetchone()
-    if project_commit == project:
-        project = None
-    c.execute('''DELETE FROM "repos" WHERE "url"=? AND "branch" IS ? AND "project" IS ?''', (url, branch, project))
-    c.execute('''DELETE FROM "repo_history" WHERE "url"=? AND "branch" IS ? AND "project" IS ?''', (url, branch, project))
     conn.commit()
     conn.close()
 
@@ -342,11 +267,32 @@ class GitError(LookupError):
     """Raised when a git operation fails, generally due to a missing commit or branch, or network connection issues."""
     pass
 
+class Git:
+    def __init__(self, path):
+        self.path = path
+        self.base = ("git", "-C", path)
+
+    def get_hash(self, target):
+        try:
+            return subprocess.check_output(self.base + ("show", target, "-s", "--format=format:%H", "--"), stderr=subprocess.DEVNULL).decode("utf-8")
+        except subprocess.CalledProcessError as e:
+            raise GitError from e
+
+    def get_commit_message(self, target):
+        try:
+            return subprocess.check_output(self.base + ("show", target, "-s", "--format=format:%B", "--"), stderr=subprocess.DEVNULL).decode("utf-8", "replace")
+        except subprocess.CalledProcessError as e:
+            raise GitError from e
+
+# Currently we only use one git repo, at cache_home
+GIT = Git(cache_home)
+
 class Repo:
-    def __init__(self, dbconn, project, url, branch, list_metadata=False):
+    def __init__(self, dbconn, project_commit, url, branch, head_commit, list_metadata=False):
         self.url = url
         self.branch = branch
-        self.project_commit = project.commit
+        self.project_commit = project_commit
+        self.erroring = False
 
         if not branch:
             self.branchname = "gan" + hashlib.sha256(url.encode("utf-8")).hexdigest()
@@ -355,33 +301,45 @@ class Repo:
             self.branchname = "gan" + hmac.new(branch.encode("utf-8"), url.encode("utf-8"), "sha256").hexdigest()
             self.head = "refs/heads/" + branch
 
-        try:
-            self.hash = subprocess.check_output(["git", "-C", cache_home, "show", self.branchname, "-s", "--format=%H", "--"], stderr=subprocess.DEVNULL).decode("utf-8").strip()
-        except subprocess.CalledProcessError:
-            self.hash = None
+        if head_commit:
+            self.hash = head_commit
+        else:
+            try: # FIXME should we even do this?
+                self.hash = GIT.get_hash(self.branchname)
+            except GitError:
+                self.erroring = True
+                self.hash = None
 
         self.message = None
         if list_metadata:
             try:
-                self.fetch_metadata()
+                self.update_metadata()
             except GitError:
+                self.erroring = True
                 pass
 
-    def fetch_metadata(self):
-        try:
-            self.message = subprocess.check_output(["git", "-C", cache_home, "show", self.branchname, "-s", "--format=%B", "--"], stderr=subprocess.DEVNULL).decode("utf-8", "replace")
-        except subprocess.CalledProcessError as e:
-            raise GitError from e
+    def update_metadata(self):
+        self.message = GIT.get_commit_message(self.branchname)
 
-    def update(self): # FIXME?
+    def update(self):
+        """
+        Updates the git repo, returning new metadata.
+        """
         try:
             subprocess.check_output(["git", "-C", cache_home, "fetch", "-q", self.url, "+" + self.head + ":" + self.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)
+            self.erroring = True
             return None
         pre_hash = self.hash
-        post_hash = subprocess.check_output(["git", "-C", cache_home, "show", self.branchname, "-s", "--format=%H", "--"], stderr=subprocess.DEVNULL).decode("utf-8").strip()
+        try:
+            post_hash = GIT.get_hash(self.branchname)
+        except GitError as e:
+            # This should never happen, but maybe there's some edge cases?
+            # TODO check
+            self.erroring = True
+            return None
         self.hash = post_hash
         if not pre_hash:
             pre_hash = post_hash
@@ -391,117 +349,227 @@ class Repo:
             count = 0  # force-pushed
         try:
             subprocess.check_call(["git", "-C", cache_home, "merge-base", "--is-ancestor", self.project_commit, self.branchname], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
-            self.fetch_metadata()
-            return count, post_hash, self.message
+            self.update_metadata()
+            return count
         except (subprocess.CalledProcessError, GitError) as e:
             click.echo(e, err=True)
+            self.erroring = True
             return None
 
 class Project:
-    def __init__(self, dbconn, ganarchy, project_commit, list_repos=False):
+    def __init__(self, dbconn, project_commit, list_repos=False):
         self.commit = project_commit
-        if ganarchy.project_commit == project_commit:
-            project_commit = None
         self.refresh_metadata()
+        self.repos = None
         if list_repos:
-            repos = []
-            with dbconn:
-                for (e, url, branch) in dbconn.execute('''SELECT "max"("e"), "url", "branch" FROM (SELECT "max"("T1"."entry") "e", "T1"."url", "T1"."branch" FROM "repo_history" "T1"
-                                                                    WHERE (SELECT "active" FROM "repos" "T2" WHERE "url" = "T1"."url" AND "branch" IS "T1"."branch" AND "project" IS ?1)
-                                                                    GROUP BY "T1"."url", "T1"."branch"
-                                                                    UNION
-                                                                    SELECT null, "T3"."url", "T3"."branch" FROM "repos" "T3" WHERE "active" AND "project" IS ?1)
-                                           GROUP BY "url" ORDER BY "e"''', (project_commit,)):
-                    repos.append(Repo(dbconn, self, url, branch))
-            self.repos = repos
-        else:
-            self.repos = None
+            self.list_repos(dbconn)
+
+    def list_repos(self, dbconn):
+        repos = []
+        with dbconn:
+            for (e, url, branch, head_commit) in dbconn.execute('''SELECT "max"("e"), "url", "branch", "head_commit" FROM (SELECT "max"("T1"."entry") "e", "T1"."url", "T1"."branch", "T1"."head_commit" FROM "repo_history" "T1"
+                                                                WHERE (SELECT "active" FROM "repos" "T2" WHERE "url" = "T1"."url" AND "branch" IS "T1"."branch" AND "project" IS ?1)
+                                                                GROUP BY "T1"."url", "T1"."branch"
+                                                                UNION
+                                                                SELECT null, "T3"."url", "T3"."branch", null FROM "repos" "T3" WHERE "active" AND "project" IS ?1)
+                                       GROUP BY "url" ORDER BY "e"''', (self.commit,)):
+                repos.append(Repo(dbconn, self.commit, url, branch, head_commit))
+        self.repos = repos
 
     def refresh_metadata(self):
         try:
-            project = subprocess.check_output(["git", "-C", cache_home, "show", self.commit, "-s", "--format=%B", "--"], stderr=subprocess.DEVNULL).decode("utf-8", "replace")
+            project = GIT.get_commit_message(self.commit)
             project_title, project_desc = (lambda x: x.groups() if x is not None else ('', None))(re.fullmatch('^\\[Project\\]\s+(.+?)(?:\n\n(.+))?$', project, flags=re.ASCII|re.DOTALL|re.IGNORECASE))
-            if not project_title.strip():
+            if not project_title.strip(): # FIXME
                 project_title, project_desc = ("Error parsing project commit",)*2
-            if project_desc:
-                project_desc = project_desc.strip()
+            # if project_desc: # FIXME
+            #     project_desc = project_desc.strip()
             self.commit_body = project
             self.title = project_title
             self.description = project_desc
-        except subprocess.CalledProcessError:
+        except GitError:
             self.commit_body = None
             self.title = None
             self.description = None
 
     def update(self):
-        # TODO
+        # TODO? check if working correctly
+        results = [(repo, repo.update()) for repo in self.repos]
         self.refresh_metadata()
+        return results
 
 class GAnarchy:
-    def __init__(self, dbconn, list_projects=False):
-        with dbconn:
-            # TODO
-            #(project_commit, base_url, title) = dbconn.execute('''SELECT "git_commit", "base_url", "title" FROM "config"''').fetchone()
-            (project_commit, base_url) = dbconn.execute('''SELECT "git_commit", "base_url" FROM "config"''').fetchone()
-            title = None
-            self.project_commit = project_commit
-            self.base_url = base_url
-            if not base_url:
-                pass ## TODO
-            if not title:
-                from urllib.parse import urlparse
-                title = "GAnarchy on " + urlparse(base_url).hostname
-            self.title = title
+    def __init__(self, dbconn, config, list_projects=False, list_repos=False):
+        base_url = config.base_url
+        title = config.title
+        if not base_url:
+            # FIXME use a more appropriate error type
+            raise ValueError
+        if not title:
+            title = "GAnarchy on " + urlparse(base_url).hostname
+        self.title = title
+        self.base_url = base_url
+        # load config onto DB
+        c = dbconn.cursor()
+        c.execute('''CREATE TEMPORARY TABLE "repos" ("url" TEXT PRIMARY KEY, "active" INT, "branch" TEXT, "project" TEXT)''')
+        c.execute('''CREATE UNIQUE INDEX "temp"."repos_url_branch_project" ON "repos" ("url", "branch", "project")''')
+        c.execute('''CREATE INDEX "temp"."repos_project" ON "repos" ("project")''')
+        c.execute('''CREATE INDEX "temp"."repos_active" ON "repos" ("active")''')
+        for (project_commit, repos) in config.projects.items():
+            for (repo_url, branches) in repos.items():
+                for (branchname, options) in branches.items():
+                    if options['active']: # no need to insert inactive repos since they get ignored anyway
+                        c.execute('''INSERT INTO "repos" VALUES (?, ?, ?, ?)''', (repo_url, 1, branchname, project_commit))
+        dbconn.commit()
         if list_projects:
             projects = []
             with dbconn:
                 for (project,) in dbconn.execute('''SELECT DISTINCT "project" FROM "repos" '''): # FIXME? *maybe* sort by activity in the future
-                    if project == None:
-                        project = self.project_commit
-                    projects.append(Project(dbconn, ganarchy, project))
-            projects.sort(key=lambda project: project.title)
+                    projects.append(Project(dbconn, project, list_repos=list_repos))
+            projects.sort(key=lambda project: project.title) # sort projects by title
             self.projects = projects
         else:
             self.projects = None
 
+class Config:
+    def __init__(self, toml_file, base=None, remove=True):
+        self.projects = defaultdict(lambda: defaultdict(lambda: defaultdict(lambda: defaultdict(dict))))
+        config_data = qtoml.load(toml_file)
+        self.title = config_data.get('title', '')
+        self.base_url = config_data.get('base_url', '')
+        # TODO blocked domains (but only read them from config_data if remove is True)
+        self.blocked_domains = []
+        self.blocked_domain_suffixes = []
+        self.blocked_domains.sort()
+        self.blocked_domain_suffixes.sort(key=lambda x: x[::-1])
+        # FIXME remove duplicates and process invalid entries
+        self.blocked_domains = tuple(self.blocked_domains)
+        self.blocked_domain_suffixes = tuple(self.blocked_domain_suffixes) # MUST be tuple
+        # TODO re.compile("(^" + "|^".join(map(re.escape, domains)) + "|" + "|".join(map(re.escape, suffixes) + ")$")
+        if base:
+            self._update_projects(base.projects, sanitize=False) # already sanitized
+        projects = config_data.get('projects', {})
+        self._update_projects(projects, remove=remove)
+
+    def _update_projects(self, projects, remove, sanitize=True):
+        for (project_commit, repos) in projects.items():
+            if sanitize and not isinstance(repos, dict):
+                # TODO emit warnings?
+                continue
+            if sanitize and not re.fullmatch("[0-9a-fA-F]{40}|[0-9a-fA-F]{64}", project_commit): # future-proofing: sha256 support
+                # TODO emit warnings?
+                continue
+            project = self.projects[project_commit]
+            for (repo_url, branches) in repos.items():
+                if sanitize and not isinstance(branches, dict):
+                    # TODO emit warnings?
+                    continue
+                try:
+                    u = urlparse(repo_url)
+                    if not u:
+                        raise ValueError
+                    getattr(u, 'port') # raises ValueError if port is invalid
+                    if u.scheme in ('file', ''):
+                        raise ValueError
+                    if (u.hostname in self.blocked_domains) or (u.hostname.endswith(self.blocked_domain_suffixes)):
+                        raise ValueError
+                except ValueError:
+                    if sanitize:
+                        # TODO emit warnings?
+                        continue
+                    else:
+                        raise
+                repo = project[repo_url]
+                for (branchname, options) in branches.items():
+                    if sanitize and not isinstance(options, dict):
+                        # TODO emit warnings?
+                        continue
+                    if branchname == "HEAD":
+                        if sanitize:
+                            # feels weird, but generally makes things easier
+                            # DO NOT emit warnings here. this is deliberate.
+                            branchname = None
+                        else:
+                            raise ValueError
+                    branch = repo[branchname]
+                    active = options.get('active', False)
+                    if active not in (True, False):
+                        if sanitize:
+                            # TODO emit warnings?
+                            continue
+                        else:
+                            raise ValueError
+                    ## | remove | branch.active | options.active | result |
+                    ## |    x   |     false     |     false      |  false |
+                    ## |    x   |     false     |     true       |  true  |
+                    ## |    x   |     true      |     true       |  true  |
+                    ## |  false |     true      |     false      |  true  |
+                    ## |  true  |     true      |     false      |  false |
+                    branch['active'] = branch.get('active', False) or active
+                    if remove and not active:
+                        branch['active'] = False
+
+@ganarchy.command()
+@click.option('--skip-errors/--no-skip-errors', default=False)
+@click.argument('files', type=click.File('r', encoding='utf-8'), nargs=-1)
+def merge_configs(skip_errors, files):
+    """Merges config files."""
+    config = None
+    for f in files:
+        try:
+            f.reconfigure(newline='')
+            config = Config(f, config, remove=False)
+        except (UnicodeDecodeError, qtoml.decoder.TOMLDecodeError):
+            if not skip_errors:
+                raise
+    if config:
+        env = get_env()
+        template = env.get_template('index.toml')
+        click.echo(template.render(config=config))
 
 @ganarchy.command()
 @click.argument('project', required=False)
 def cron_target(project):
     """Runs ganarchy as a cron target."""
+    conf = None
+    # reverse order is intentional
+    for d in reversed(config_dirs):
+        try:
+            conf = Config(open(d + "/config.toml", 'r', encoding='utf-8', newline=''), conf)
+        except (OSError, UnicodeDecodeError, qtoml.decoder.TOMLDecodeError):
+            pass
+    with open(config_home + "/config.toml", 'r', encoding='utf-8', newline='') as f:
+        conf = Config(f, conf)
+    env = get_env()
+    if project == "config":
+        # render the config
+        # doesn't have access to a GAnarchy object. this is deliberate.
+        template = env.get_template('index.toml')
+        click.echo(template.render(config = conf))
+        return
     # make sure the cache dir exists
     os.makedirs(cache_home, exist_ok=True)
     # make sure it is a git repo
     subprocess.call(["git", "-C", cache_home, "init", "-q"])
     conn = sqlite3.connect(data_home + "/ganarchy.db")
-    instance = GAnarchy(conn, list_projects=project=="index")
-    env = jinja2.Environment(loader=get_template_loader(), autoescape=False)
+    instance = GAnarchy(conn, conf, list_projects=project in ["index", "config"])
     if project == "index":
         # render the index
         template = env.get_template('index.html')
         click.echo(template.render(ganarchy = instance))
         return
-    project_commit = instance.project_commit
-    base_url = instance.base_url
-    if not base_url or not (project or project_commit):
+    if not instance.base_url or not project:
         click.echo("No base URL or project commit specified", err=True)
         return
-    if project_commit == project:
-        project = None
-    elif project is not None:
-        project_commit = project
     entries = []
     generate_html = []
     c = conn.cursor()
-    p = Project(conn, instance, project_commit, list_repos=True)
-    # FIXME: this should be moved into Project.update()
-    for repo in p.repos:
-        result = repo.update()
-        if result is not None:
-            count, post_hash, msg = result
-            entries.append((repo.url, count, post_hash, repo.branch, project))
-            generate_html.append((repo.url, msg, count, repo.branch))
-    p.refresh_metadata()
+    p = Project(conn, project, list_repos=True)
+    results = p.update()
+    for (repo, count) in results:
+        if count is not None:
+            entries.append((repo.url, count, repo.hash, repo.branch, project))
+            generate_html.append((repo.url, repo.message, count, repo.branch))
     # sort stuff twice because reasons
     entries.sort(key=lambda x: x[1], reverse=True)
     generate_html.sort(key=lambda x: x[2], reverse=True)
@@ -518,7 +586,7 @@ def cron_target(project):
                                project_body   = p.commit_body,
                                project_commit = p.commit,
                                repos          = html_entries,
-                               base_url       = base_url,
+                               base_url       = instance.base_url,
                                # I don't think this thing supports deprecating the above?
                                project        = p,
                                ganarchy       = instance))

index.js

@@ -2,16 +2,16 @@
 // 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
+// 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 Affero General Public License for more details.
+// GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Affero General Public License
+// You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (function() {

requirements.txt

@@ -1,2 +1,3 @@
 Click==7.0
 Jinja2==2.10.1
+qtoml==0.2.4