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