git-update

   1 #!/usr/bin/env python3
   2 import argparse
   3 import os
   4 import subprocess
   5 import xml.etree.ElementTree as ET
   6 import sys
   7
   8 from common import git
   9 from common import Colors
  10 from common import accept_command
  11
  12
  13 SCRIPTDIR = os.path.normpath(os.path.dirname(__file__))
  14
  15
  16 def manifest_get_commits(manifest):
  17     res = {}
  18     tree = ET.parse(manifest)
  19     root = tree.getroot()
  20     remotes = {}
  21     for child in root:
  22         if child.tag == 'remote':
  23             remotes[child.attrib['name']] = child.attrib['fetch']
  24         if child.tag == 'project':
  25             name = child.attrib['name']
  26             path = child.attrib.get('path', name)
  27
  28             remote = child.attrib.get('remote')
  29             if remote:
  30                 res[path] = [child.attrib["revision"], [os.path.join(remotes[remote], name), child.attrib['refname']]]
  31             else:
  32                 res[path] = [child.attrib["revision"], []]
  33
  34     return res
  35
  36
  37 def get_branch_name(repo_dir):
  38     return git('-C', repo_dir, 'rev-parse', '--symbolic-full-name', 'HEAD').strip()
  39
  40
  41 def ensure_revision_if_necessary(repo_dir, revision):
  42     """
  43     Makes sure that @revision is set if the current repo is detached.
  44     """
  45     if not revision:
  46         if get_branch_name(repo_dir) == 'HEAD':
  47             revision = git('-C', repo_dir, 'rev-parse', 'HEAD').strip()
  48
  49     return revision
  50
  51
  52 def update_subprojects(repos_commits, no_interaction=False):
  53     subprojects_dir = os.path.join(SCRIPTDIR, "subprojects")
  54     for repo_name in os.listdir(subprojects_dir):
  55         repo_dir = os.path.normpath(os.path.join(SCRIPTDIR, subprojects_dir, repo_name))
  56         if not os.path.exists(os.path.join(repo_dir, '.git')):
  57             continue
  58
  59         revision, args = repos_commits.get(repo_name, [None, []])
  60         if not update_repo(repo_name, repo_dir, revision, no_interaction, args):
  61             return False
  62
  63     return True
  64
  65
  66 def update_repo(repo_name, repo_dir, revision, no_interaction, fetch_args=[], recurse_i=0):
  67     revision = ensure_revision_if_necessary(repo_dir, revision)
  68     git("config", "rebase.autoStash", "true", repository_path=repo_dir)
  69     try:
  70         if revision:
  71             print("Checking out %s in %s" % (revision, repo_name))
  72             git("fetch", *fetch_args, repository_path=repo_dir)
  73             git("checkout", "--detach", revision, repository_path=repo_dir)
  74         else:
  75             print("Updating branch %s in %s" % (get_branch_name(repo_dir), repo_name))
  76             git("pull", "--rebase", repository_path=repo_dir)
  77         git("submodule", "update", repository_path=repo_dir)
  78     except Exception as e:
  79         out = getattr(e, "output", b"").decode()
  80         if not no_interaction:
  81             print("====================================="
  82                   "\n%s\nEntering a shell in %s to fix that"
  83                   " just `exit 0` once done, or `exit 255`"
  84                   " to skip update for that repository"
  85                   "\n=====================================" % (
  86                         out, repo_dir))
  87             try:
  88                 if os.name is 'nt':
  89                     shell = os.environ.get("COMSPEC", r"C:\WINDOWS\system32\cmd.exe")
  90                 else:
  91                     shell = os.environ.get("SHELL", os.path.realpath("/bin/sh"))
  92                 subprocess.check_call(shell, cwd=repo_dir)
  93             except subprocess.CalledProcessError as e:
  94                 if e.returncode == 255:
  95                     print("Skipping '%s' update" % repo_name)
  96                     return True
  97             except:
  98                 # Result of subshell does not really matter
  99                 pass
 100
 101             if recurse_i < 3:
 102                 return update_repo(repo_name, repo_dir, revision, no_interaction,
 103                                     recurse_i + 1)
 104             return False
 105         else:
 106             print("\nCould not rebase %s, please fix and try again."
 107                     " Error:\n\n%s %s" % (repo_dir, out, e))
 108
 109             return False
 110
 111
 112     commit_message = git("show", "--shortstat", repository_path=repo_dir).split("\n")
 113     print(u"  -> %s%s%s - %s" % (Colors.HEADER, commit_message[0][7:14], Colors.ENDC,
 114                                     commit_message[4].strip()))
 115
 116     return True
 117
 118
 119 if __name__ == "__main__":
 120     parser = argparse.ArgumentParser(prog="git-update")
 121
 122     parser.add_argument("--no-color",
 123                         default=False,
 124                         action='store_true',
 125                         help="Do not output ansi colors.")
 126     parser.add_argument("--builddir",
 127                         default=None,
 128                         help="Specifies the build directory where to"
 129                         " invoke ninja after updating.")
 130     parser.add_argument("--no-interaction",
 131                         default=False,
 132                         action='store_true',
 133                         help="Do not allow interaction with the user.")
 134     parser.add_argument("--manifest",
 135                         default=None,
 136                         help="Use a android repo manifest to sync repositories"
 137                         " Note that it will let all repositories in detached state")
 138     options = parser.parse_args()
 139     if options.no_color:
 140         Colors.disable()
 141
 142     if options.no_interaction:
 143         sys.stdin.close()
 144
 145     if options.manifest:
 146         repos_commits = manifest_get_commits(options.manifest)
 147     else:
 148         repos_commits = {}
 149
 150     revision, args = repos_commits.get('gst-build', [None, []])
 151     if not update_repo('gst-build', SCRIPTDIR, revision, options.no_interaction, args):
 152         exit(1)
 153
 154     if not update_subprojects(repos_commits, options.no_interaction):
 155         exit(1)
 156
 157     if options.builddir:
 158         ninja = accept_command(["ninja", "ninja-build"])
 159         if not ninja:
 160             print("Can't find ninja, other backends are not supported for rebuilding")
 161             exit(1)
 162
 163         if not os.path.exists(os.path.join (options.builddir, 'build.ninja')):
 164             print("Can't rebuild in %s as no build.ninja file found." % options.builddir)
 165
 166         print("Rebuilding all GStreamer modules.")
 167         exit(subprocess.call([ninja, '-C', options.builddir]))