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 scripts.common import git
   9 from scripts.common import Colors
  10 from scripts.common import accept_command
  11 from scripts.common import get_meson
  12
  13
  14 SCRIPTDIR = os.path.normpath(os.path.dirname(__file__))
  15
  16
  17 def manifest_get_commits(manifest):
  18     res = {}
  19     tree = ET.parse(manifest)
  20     root = tree.getroot()
  21     remotes = {}
  22     for child in root:
  23         if child.tag == 'remote':
  24             remotes[child.attrib['name']] = child.attrib['fetch']
  25         if child.tag == 'project':
  26             name = child.attrib['name']
  27             path = child.attrib.get('path', name)
  28
  29             remote = child.attrib.get('remote')
  30             if remote:
  31                 res[path] = [child.attrib["revision"], [os.path.join(remotes[remote], name), child.attrib.get('refname', child.attrib["revision"])]]
  32             else:
  33                 res[path] = [child.attrib["revision"], []]
  34
  35     return res
  36
  37
  38 def get_branch_name(repo_dir):
  39     return git('-C', repo_dir, 'rev-parse', '--symbolic-full-name', 'HEAD').strip()
  40
  41
  42 def ensure_revision_if_necessary(repo_dir, revision):
  43     """
  44     Makes sure that @revision is set if the current repo is detached.
  45     """
  46     if not revision:
  47         if get_branch_name(repo_dir) == 'HEAD':
  48             revision = git('-C', repo_dir, 'rev-parse', 'HEAD').strip()
  49
  50     return revision
  51
  52
  53 def update_subprojects(repos_commits, no_interaction=False):
  54     subprojects_dir = os.path.join(SCRIPTDIR, "subprojects")
  55     for repo_name in os.listdir(subprojects_dir):
  56         repo_dir = os.path.normpath(os.path.join(SCRIPTDIR, subprojects_dir, repo_name))
  57         if not os.path.exists(os.path.join(repo_dir, '.git')):
  58             continue
  59
  60         revision, args = repos_commits.get(repo_name, [None, []])
  61         if not update_repo(repo_name, repo_dir, revision, no_interaction, args):
  62             return False
  63
  64     return True
  65
  66
  67 def update_repo(repo_name, repo_dir, revision, no_interaction, fetch_args=[], recurse_i=0):
  68     revision = ensure_revision_if_necessary(repo_dir, revision)
  69     git("config", "rebase.autoStash", "true", repository_path=repo_dir)
  70     try:
  71         if revision:
  72             print("Checking out %s in %s" % (revision, repo_name))
  73             git("fetch", *fetch_args, repository_path=repo_dir)
  74             git("checkout", "--detach", revision, repository_path=repo_dir)
  75         else:
  76             print("Updating branch %s in %s" % (get_branch_name(repo_dir), repo_name))
  77             git("pull", "--rebase", repository_path=repo_dir)
  78         git("submodule", "update", repository_path=repo_dir)
  79     except Exception as e:
  80         out = getattr(e, "output", b"").decode()
  81         if not no_interaction:
  82             print("====================================="
  83                   "\n%s\nEntering a shell in %s to fix that"
  84                   " just `exit 0` once done, or `exit 255`"
  85                   " to skip update for that repository"
  86                   "\n=====================================" % (
  87                         out, repo_dir))
  88             try:
  89                 if os.name is 'nt':
  90                     shell = os.environ.get("COMSPEC", r"C:\WINDOWS\system32\cmd.exe")
  91                 else:
  92                     shell = os.environ.get("SHELL", os.path.realpath("/bin/sh"))
  93                 subprocess.check_call(shell, cwd=repo_dir)
  94             except subprocess.CalledProcessError as e:
  95                 if e.returncode == 255:
  96                     print("Skipping '%s' update" % repo_name)
  97                     return True
  98             except:
  99                 # Result of subshell does not really matter
 100                 pass
 101
 102             if recurse_i < 3:
 103                 return update_repo(repo_name, repo_dir, revision, no_interaction,
 104                                     recurse_i + 1)
 105             return False
 106         else:
 107             print("\nCould not rebase %s, please fix and try again."
 108                     " Error:\n\n%s %s" % (repo_dir, out, e))
 109
 110             return False
 111
 112
 113     commit_message = git("show", "--shortstat", repository_path=repo_dir).split("\n")
 114     print(u"  -> %s%s%s - %s" % (Colors.HEADER, commit_message[0][7:14], Colors.ENDC,
 115                                     commit_message[4].strip()))
 116
 117     return True
 118
 119
 120 if __name__ == "__main__":
 121     parser = argparse.ArgumentParser(prog="git-update")
 122
 123     parser.add_argument("--no-color",
 124                         default=False,
 125                         action='store_true',
 126                         help="Do not output ansi colors.")
 127     parser.add_argument("--builddir",
 128                         default=None,
 129                         help="Specifies the build directory where to"
 130                         " invoke ninja after updating.")
 131     parser.add_argument("--no-interaction",
 132                         default=False,
 133                         action='store_true',
 134                         help="Do not allow interaction with the user.")
 135     parser.add_argument("--manifest",
 136                         default=None,
 137                         help="Use a android repo manifest to sync repositories"
 138                         " Note that it will let all repositories in detached state")
 139     options = parser.parse_args()
 140     if options.no_color or not Colors.can_enable():
 141         Colors.disable()
 142
 143     if options.no_interaction:
 144         sys.stdin.close()
 145
 146     if options.manifest:
 147         meson = get_meson()
 148         targets_s = subprocess.check_output(meson + ['subprojects', 'download'])
 149         repos_commits = manifest_get_commits(options.manifest)
 150     else:
 151         repos_commits = {}
 152
 153     revision, args = repos_commits.get('gst-build', [None, []])
 154     if not update_repo('gst-build', SCRIPTDIR, revision, options.no_interaction, args):
 155         exit(1)
 156
 157     if not update_subprojects(repos_commits, options.no_interaction):
 158         exit(1)
 159
 160     if options.builddir:
 161         ninja = accept_command(["ninja", "ninja-build"])
 162         if not ninja:
 163             print("Can't find ninja, other backends are not supported for rebuilding")
 164             exit(1)
 165
 166         if not os.path.exists(os.path.join (options.builddir, 'build.ninja')):
 167             print("Can't rebuild in %s as no build.ninja file found." % options.builddir)
 168
 169         print("Rebuilding all GStreamer modules.")
 170         exit(subprocess.call([ninja, '-C', options.builddir]))