From 9de90ce5e920ff1145a1b899095f90675f92d926 Mon Sep 17 00:00:00 2001
From: Michael Dubner <pywebmail@list.ru>
Date: Tue, 20 Dec 2016 10:22:25 +0300
Subject: [PATCH] #18: Gogs support

---
 git_repo/services/ext/gogs.py | 248 ++++++++++++++++++++++++++++++++++
 1 file changed, 248 insertions(+)
 create mode 100644 git_repo/services/ext/gogs.py

diff --git a/git_repo/services/ext/gogs.py b/git_repo/services/ext/gogs.py
new file mode 100644
index 0000000..f859d48
--- /dev/null
+++ b/git_repo/services/ext/gogs.py
@@ -0,0 +1,248 @@
+#!/usr/bin/env python
+
+import logging
+log = logging.getLogger('git_repo.gogs')
+
+from ..service import register_target, RepositoryService, os
+from ...exceptions import ResourceError, ResourceExistsError, ResourceNotFoundError
+
+import requests
+from urllib.parse import urlparse, urlunparse
+import functools
+
+from git import config as git_config
+from git.exc import GitCommandError
+
+@register_target('gg', 'gogs')
+class GoGSService(RepositoryService):
+    fqdn = 'try.gogs.io'
+
+    @classmethod
+    def _url_parse(cls, url):
+        if '://' not in url:
+            url = 'https://'+url
+        parse = urlparse(url)
+        url_base = urlunparse((parse.scheme, parse.netloc)+('',)*4)
+        fqdn = parse.hostname
+        return url_base, fqdn
+
+    #@property
+    #def git_user(self):
+    #    return self.username
+
+    @property
+    def url_ro(self):
+        return self.url_base
+
+    @property
+    def url_rw(self):
+        url = self.ssh_url
+        if '@' in url:
+            return url
+        return '@'.join([self.git_user, url])
+
+    def url_api(self, rest):
+        return '{}/api/v1/{}'.format(self.url_base, rest)
+
+    @classmethod
+    def get_auth_token(cls, login, password, prompt=None):
+        import platform
+        name = 'git-repo2 token used on {}'.format(platform.node()),
+        if '/' in login:
+            url, login = login.rsplit('/', 1)
+        else:
+            url = input('URL [{}]> '.format(cls.fqdn))
+        url_base, fqdn = cls._url_parse(url)
+        url_api = functools.partial('{}/api/v1/{}'.format, url_base)
+        r = requests.get(url_api('users/{}/tokens'.format(login)), auth=(login, password), verify=False)
+        r.raise_for_status()
+        tokens = r.json()
+        tokens = dict((o['name'], o['sha1']) for o in tokens)
+        if name in tokens:
+            return tokens[name]
+        if 'git-repo2 token' in tokens:
+            return tokens['git-repo2 token']
+        r = requests.get(url_api('users/{}/tokens'.format(login)), auth=(login, password), verify=False)
+        r.raise_for_status()
+        token = r.json()
+        return token['sha1']
+
+    @property
+    def user(self):
+        r = self.session.get(self.url_api('user'))
+        r.raise_for_status()
+        user = r.json()
+        return user['username']
+
+    def orgs(self):
+        r  = self.session.get(self.url_api('user/orgs'))
+        r.raise_for_status()
+        return [o['username'] for o in r.json()]
+
+    def connect(self):
+        self.url_base, self.fqdn = self._url_parse(self.fqdn)
+        verify = self.fqdn == 'try.gogs.io'
+        #verify = True
+        verify = self.config.get('verify', ['no','yes'][verify])
+        if verify.lower().strip() in ('0','no','false',''):
+            verify = False
+        elif verify.lower().strip() in ('1','yes','true'):
+            verify = True
+        self.default_private = self.config.get('default_private', 'true').lower() not in ('0','no','false')
+        self.ssh_url = self.config.get('ssh-url', None) or self.fqdn
+        if not self.repository:
+            config = git_config.GitConfigParser(os.path.join(os.environ['HOME'], '.gitconfig'), True)
+        else:
+            config = self.repository.config_reader()
+        proxies = {}
+        for scheme in 'http https'.split():
+            proxy = config.get_value(scheme, 'proxy', '')
+            if proxy:
+                proxies[scheme] = proxy
+        try:
+            self.session = requests.Session()
+            self.session.verify = verify
+            self.session.proxies.update(proxies)
+            if not verify:
+                try:
+                    import urllib3
+                    urllib3.disable_warnings()
+                except ImportError:
+                    pass
+            self.session.headers.update({'Authorization': 'token '+self._privatekey})
+            self.username = self.user
+        except requests.HTTPError as err:
+            if err.response and err.response.status_code == 401:
+                if not self._privatekey:
+                    raise ConnectionError('Could not connect to GoGS. '
+                                          'Please configure .gitconfig '
+                                          'with your github private key.') from err
+                else:
+                    raise ConnectionError('Could not connect to GoGS. '
+                                          'Check your configuration and try again.') from err
+            else:
+                raise err
+
+    def create(self, user, repo, add=False):
+        print('create(%r,%r,%r)' % (user, repo, add))
+        args = dict(name=repo, private=self.default_private)
+        try:
+            if user != self.username:
+                if user in self.orgs():
+                    r = self.session.post(self.url_api('org/{}/repos'.format(user)), json=args)
+                else:
+                    raise ResourceNotFoundError("Namespace {} neither an organization or current user.".format(user))
+            else:
+                r = self.session.post(self.url_api('user/repos'), json=args)
+        except requests.HTTPError as err:
+            if err.response and err.response.status_code == 422:
+                raise ResourceExistsError("Project already exists.") from err
+            else: # pragma: no cover
+                raise ResourceError("Unhandled error.") from err
+        if add:
+            self.add(user=self.username, repo=repo, tracking=self.name)
+
+    def fork(self, user, repo):
+        raise NotImplementedError
+
+    def delete(self, repo, user=None):
+        if not user:
+            user = self.username
+        r = self.session.delete(self.url_api('repos/{}/{}'.format(user, repo)))
+        r.raise_for_status()
+
+    def list(self, user, _long=False):
+        import shutil, sys
+        from datetime import datetime
+        term_width = shutil.get_terminal_size((80, 20)).columns
+        def col_print(lines, indent=0, pad=2):
+            # prints a list of items in a fashion similar to the dir command
+            # borrowed from https://gist.github.com/critiqjo/2ca84db26daaeb1715e1
+            n_lines = len(lines)
+            if n_lines == 0:
+                return
+            col_width = max(len(line) for line in lines)
+            n_cols = int((term_width + pad - indent)/(col_width + pad))
+            n_cols = min(n_lines, max(1, n_cols))
+            col_len = int(n_lines/n_cols) + (0 if n_lines % n_cols == 0 else 1)
+            if (n_cols - 1) * col_len >= n_lines:
+                n_cols -= 1
+            cols = [lines[i*col_len : i*col_len + col_len] for i in range(n_cols)]
+            rows = list(zip(*cols))
+            rows_missed = zip(*[col[len(rows):] for col in cols[:-1]])
+            rows.extend(rows_missed)
+            for row in rows:
+                print(" "*indent + (" "*pad).join(line.ljust(col_width) for line in row))
+
+        if user == self.username:
+            r = self.session.get(self.url_api('user/repos'))
+        elif user in self.orgs():
+            r = self.session.get(self.url_api('orgs/{}/repos'.format(user)))
+        else:
+            raise ResourceNotFoundError("User {} does not exists.".format(user))
+
+        r.raise_for_status()
+        repositories = r.json()
+        if not _long:
+            repositories = list(repositories)
+            col_print([repo['full_name'] for repo in repositories])
+        else:
+            print('Status\tCommits\tReqs\tIssues\tForks\tCoders\tWatch\tLikes\tLang\tModif\t\t\t\tName', file=sys.stderr)
+            for repo in repositories:
+                status = ''.join([
+                    'F' if repo['fork'] else ' ',          # is a fork?
+                    'P' if repo['private'] else ' ',       # is private?
+                ])
+                try:
+                    r = self.session.get(self.url_api('repos/{}/issues'.format(repo['full_name'])))
+                    issues = r.json()
+                except Exception:
+                    issues = []
+                print('\t'.join([
+                    # status
+                    status,
+                    # stats
+                    str(len(list(()))),                    # number of commits
+                    str(len(list(()))),                    # number of pulls
+                    str(len(list(issues))),                # number of issues
+                    str(repo.get('forks_count') or 0),     # number of forks
+                    str(len(list(()))),                    # number of contributors
+                    str(repo.get('watchers_count') or 0),  # number of subscribers
+                    str(repo.get('stars_count') or 0),     # number of ♥
+                    # info
+                    repo.get('language') or '?',           # language
+                    repo['updated_at'],                    # date
+                    repo['full_name'],                     # name
+                ]))
+
+    def get_repository(self, user, repo):
+        r = self.session.get(self.url_api('repos/{}/{}'.format(user, repo)))
+        r.raise_for_status()
+        repository = r.json()
+        if not repository:
+            raise ResourceNotFoundError('Repository {}/{} does not exists.'.format(user, repo))
+        return repository
+
+    def gist_list(self, gist=None):
+        raise NotImplementedError
+
+    def gist_fetch(self, gist, fname=None):
+        raise NotImplementedError
+
+    def gist_clone(self, gist):
+        raise NotImplementedError
+
+    def gist_create(self, gist_pathes, description, secret=False):
+        raise NotImplementedError
+
+    def gist_delete(self, gist_id):
+        raise NotImplementedError
+
+    def request_create(self, user, repo, local_branch, remote_branch, title, description=None):
+        raise NotImplementedError
+
+    def request_list(self, user, repo):
+        raise NotImplementedError
+
+    def request_fetch(self, user, repo, request, pull=False):
+        raise NotImplementedError