initial commit

1 files changed, 300 insertions, 0 deletions

diff --git a/pull.py b/pull.py
new file mode 100755
index 0000000..3649139
--- /dev/null
+++ b/pull.py
@@ -0,0 +1,300 @@
+#!/usr/bin/env python3
+
+import contextlib
+from enum import Enum
+import logging
+import os
+import os.path
+import shutil
+import socket
+import sys
+import subprocess
+
+env = os.environ.copy()
+env['GIT_SSH_COMMAND'] = 'ssh -oStrictHostKeyChecking=no -oBatchMode=yes'
+
+CGIT_CLONE_USER = 'egor'
+CGIT_CLONE_HOST = 'tensin-ext1.home'
+CGIT_CLONE_IP = '127.0.0.1'
+
+REPOS_DIR = 'repos'
+
+DEFAULT_OWNER = 'Egor Tensin'
+DEFAULT_GITHUB_USER = 'egor-tensin'
+DEFAULT_BITBUCKET_USER = 'egor-tensin'
+
+
+def set_up_logging():
+    logging.basicConfig(
+        level=logging.DEBUG,
+        datefmt='%Y-%m-%d %H:%M:%S',
+        format='%(asctime)s | %(levelname)s | %(message)s')
+
+
+def make_dir(rel_path):
+    script_path = os.path.abspath(__file__)
+    script_dir = os.path.dirname(script_path)
+    abs_path = os.path.join(script_dir, rel_path)
+    os.makedirs(abs_path, exist_ok=True)
+    return abs_path
+
+
+@contextlib.contextmanager
+def chdir(new_cwd):
+    old_cwd = os.getcwd()
+    os.chdir(new_cwd)
+    try:
+        yield
+    finally:
+        os.chdir(old_cwd)
+
+
+def extract_repo_name(repo_id):
+    return os.path.basename(repo_id)
+
+
+def check_output(*args, stdout=subprocess.PIPE):
+    result = subprocess.run(args, stdout=stdout, stderr=subprocess.STDOUT,
+                            env=env, encoding='utf-8')
+    try:
+        result.check_returncode()
+        if result.stdout is None:
+            logging.debug('%s', args)
+        else:
+            logging.debug('%s\n%s', args, result.stdout)
+        return result.returncode == 0, result.stdout
+    except subprocess.CalledProcessError as e:
+        logging.error('%s\n%s', e, e.output)
+        return e.returncode == 0, e.output
+
+
+def run(*args, discard_output=False):
+    if discard_output:
+        success, _ = check_output(*args, stdout=subprocess.DEVNULL)
+    else:
+        success, _ = check_output(*args)
+    return success
+
+
+class RepoVerdict(Enum):
+    SHOULD_MIRROR = 1
+    SHOULD_UPDATE = 2
+    CANT_DECIDE = 3
+
+
+class Repo:
+    def __init__(self, repo_id, clone_url, owner=None, desc=None,
+                 homepage=None):
+        self.repo_id = repo_id
+        self.repo_name = extract_repo_name(repo_id)
+        self.repo_dir = os.path.join(REPOS_DIR, self.repo_id)
+        self.clone_url = clone_url
+        if owner is None:
+            owner = DEFAULT_OWNER
+        self.owner = owner
+        if desc is None:
+            if homepage is not None:
+                desc = homepage
+            elif clone_url is not None:
+                desc = clone_url
+            else:
+                desc = self.repo_name
+        self.desc = desc
+        self.homepage = homepage
+
+    def write_cgitrc(self):
+        with open(self.get_cgitrc_path(), 'w') as fd:
+            self.write_cgitrc_field(fd, 'clone-url', self.build_cgitrc_clone_url())
+            self.write_cgitrc_field(fd, 'owner', self.owner)
+            self.write_cgitrc_field(fd, 'desc', self.desc)
+            self.write_cgitrc_field(fd, 'homepage', self.homepage)
+
+    def build_cgitrc_clone_url(self):
+        clone_urls = []
+        if self.clone_url is not None:
+            clone_urls.append(self.clone_url)
+        clone_urls.append(self.build_cgit_clone_url())
+        clone_urls = ' '.join(clone_urls)
+        return clone_urls
+
+    def write_cgitrc_field(self, fd, field, value):
+        if value is None:
+            return
+        fd.write(f'{field}={value}\n')
+
+    def build_cgit_clone_url(self):
+        return f'http://{CGIT_CLONE_USER}@{CGIT_CLONE_IP}:8080/git/{self.repo_id}'
+
+    def get_cgitrc_path(self):
+        return os.path.join(self.repo_dir, 'cgitrc')
+
+    def pull(self):
+        success = False
+        verdict = self.judge()
+        if verdict is RepoVerdict.SHOULD_MIRROR:
+            success = self.mirror()
+        elif verdict is RepoVerdict.SHOULD_UPDATE:
+            success = self.update()
+        elif verdict is RepoVerdict.CANT_DECIDE:
+            success = False
+        else:
+            raise NotImplementedError(f'Unknown repository verdict: {verdict}')
+        if success:
+            self.write_cgitrc()
+        return success
+
+    def judge(self):
+        if not os.path.isdir(self.repo_dir):
+            return RepoVerdict.SHOULD_MIRROR
+        with chdir(self.repo_dir):
+            if not run('git', 'rev-parse', '--is-inside-work-tree', discard_output=True):
+                # What is this directory?
+                return RepoVerdict.SHOULD_MIRROR
+            success, output = check_output('git', 'config', '--get', 'remote.origin.url')
+            if not success:
+                # Every repository managed by this script should have the
+                # 'origin' remote. If it doesn't, it's trash.
+                return RepoVerdict.SHOULD_MIRROR
+            if f'{self.clone_url}\n' != output:
+                logging.warning("Existing repository '%s' URL doesn't match" \
+                                " the specified clone URL: %s", self.repo_id,
+                                self.clone_url)
+                return RepoVerdict.CANT_DECIDE
+            # Looks like a legit clone of the specified remote.
+            return RepoVerdict.SHOULD_UPDATE
+
+    def mirror(self):
+        logging.info("Mirroring repository '%s' from: %s", self.repo_id,
+                     self.clone_url)
+        if os.path.isdir(self.repo_dir):
+            try:
+                shutil.rmtree(self.repo_dir)
+            except Exception as e:
+                logging.exception(e)
+                return False
+        return run('git', 'clone', '--mirror', self.clone_url, self.repo_dir)
+
+    def update(self):
+        logging.info("Updating repository '%s'", self.repo_id)
+        with chdir(self.repo_dir):
+            return run('git', 'remote', 'update', '--prune')
+
+
+class GithubRepo(Repo):
+    def __init__(self, repo_id, clone_url=None, owner=None, desc=None,
+                 homepage=None, github_user=DEFAULT_GITHUB_USER):
+        if clone_url is None:
+            clone_url = self.build_clone_url(github_user, repo_id)
+        if homepage is None:
+            homepage = self.build_homepage_url(github_user, repo_id)
+        super().__init__(repo_id, clone_url, owner=owner, desc=desc,
+                         homepage=homepage)
+
+    @staticmethod
+    def build_clone_url(user, repo_id):
+        name = extract_repo_name(repo_id)
+        return f'ssh://git@github.com/{user}/{name}.git'
+
+    @staticmethod
+    def build_homepage_url(user, repo_id):
+        name = extract_repo_name(repo_id)
+        return f'https://github.com/egor-tensin/{name}'
+
+
+class BitbucketRepo(Repo):
+    def __init__(self, repo_id, clone_url=None, owner=None, desc=None,
+                 homepage=None, bitbucket_user=DEFAULT_BITBUCKET_USER):
+        if clone_url is None:
+            clone_url = self.build_clone_url(bitbucket_user, repo_id)
+        if homepage is None:
+            homepage = self.build_homepage_url(bitbucket_user, repo_id)
+        super().__init__(repo_id, clone_url, owner=owner, desc=desc,
+                         homepage=homepage)
+
+    @staticmethod
+    def build_clone_url(user, repo_id):
+        name = extract_repo_name(repo_id)
+        return f'ssh://git@bitbucket.org/{user}/{name}.git'
+
+    @staticmethod
+    def build_homepage_url(user, repo_id):
+        name = extract_repo_name(repo_id)
+        return f'https://bitbucket.org/egor-tensin/{name.lower()}'
+
+
+repos = (
+    GithubRepo('personal/aes-tools'),
+    GithubRepo('personal/blog'),
+    GithubRepo('personal/chess-games'),
+    GithubRepo('personal/cmake-common'),
+    GithubRepo('personal/config-links'),
+    GithubRepo('personal/cv'),
+    GithubRepo('personal/egor-tensin.github.io'),
+    GithubRepo('personal/filters'),
+    GithubRepo('personal/linux-home'),
+    BitbucketRepo('personal/measure_temp'),
+    GithubRepo('personal/notes'),
+    GithubRepo('personal/pdb-repo'),
+    GithubRepo('personal/privilege-check'),
+    GithubRepo('personal/simple-interpreter'),
+    GithubRepo('personal/sorting-algorithms'),
+    GithubRepo('personal/vk-scripts'),
+    GithubRepo('personal/windows-env'),
+    GithubRepo('personal/windows-home'),
+    GithubRepo('personal/windows-tmp'),
+    GithubRepo('personal/windows7-drivers'),
+    GithubRepo('personal/writable-dirs'),
+
+    BitbucketRepo('etc/etc-tensin-laptop1'),
+    BitbucketRepo('etc/etc-tensin-laptop2'),
+    BitbucketRepo('etc/etc-tensin-pc1'),
+    BitbucketRepo('etc/etc-tensin-raspi1'),
+    BitbucketRepo('etc/etc-tensin-raspi2'),
+    BitbucketRepo('fr24/fr24-cover-letter'),
+    BitbucketRepo('fr24/fr24-home'),
+    BitbucketRepo('fr24/fr24-tmp'),
+    BitbucketRepo('netwrix/etc-wiki'),
+    BitbucketRepo('netwrix/netwrix-copyright'),
+    BitbucketRepo('netwrix/netwrix-lab'),
+    BitbucketRepo('netwrix/netwrix-logs'),
+    #BitbucketRepo('netwrix/netwrix-webapi'),
+    BitbucketRepo('netwrix/netwrix-xml'),
+    BitbucketRepo('netwrix/netwrix.sh'),
+    BitbucketRepo('netwrix/wiki-backup'),
+    BitbucketRepo('shadow'),
+    BitbucketRepo('staging/361_Tensin_E_D_report'),
+    BitbucketRepo('staging/361_Tensin_E_D_slides'),
+    BitbucketRepo('staging/461_Tensin_E_D_report'),
+    BitbucketRepo('staging/461_Tensin_E_D_slides'),
+    BitbucketRepo('staging/deposit-calculator'),
+    BitbucketRepo('staging/x64-decoder'),
+
+    Repo('fr24/key_mgmt', 'ssh://egor@tensin-raspi2/~/tmp/key_mgmt.git'),
+    Repo('fr24/openfortivpn', 'ssh://egor@tensin-raspi2/~/tmp/openfortivpn.git'),
+)
+
+
+def main():
+    set_up_logging()
+    try:
+        global REPOS_DIR
+        REPOS_DIR = make_dir(REPOS_DIR)
+        global CGIT_CLONE_IP
+        CGIT_CLONE_IP = socket.gethostbyname(CGIT_CLONE_HOST)
+        success = True
+        for repo in repos:
+            if not repo.pull():
+                success = False
+        if success:
+            logging.info('All repositories were updated successfully')
+            return 0
+        else:
+            logging.warning("Some repositories couldn't be updated!")
+            return 1
+    except Exception as e:
+        logging.exception(e)
+        raise
+
+
+if __name__ == '__main__':
+    sys.exit(main())