diff options
Diffstat (limited to 'git_remote_helpers')
| -rw-r--r-- | git_remote_helpers/git/exporter.py | 15 | ||||
| -rw-r--r-- | git_remote_helpers/git/importer.py | 32 | ||||
| -rw-r--r-- | git_remote_helpers/git/non_local.py | 20 | ||||
| -rw-r--r-- | git_remote_helpers/git/repo.py | 7 | ||||
| -rw-r--r-- | git_remote_helpers/util.py | 81 |
5 files changed, 130 insertions, 25 deletions
diff --git a/git_remote_helpers/git/exporter.py b/git_remote_helpers/git/exporter.py index f40f9d6..9ee5f96 100644 --- a/git_remote_helpers/git/exporter.py +++ b/git_remote_helpers/git/exporter.py @@ -2,6 +2,8 @@ import os import subprocess import sys +from git_remote_helpers.util import check_call + class GitExporter(object): """An exporter for testgit repositories. @@ -15,7 +17,7 @@ class GitExporter(object): self.repo = repo - def export_repo(self, base): + def export_repo(self, base, refs=None): """Exports a fast-export stream for the given directory. Simply delegates to git fast-epxort and pipes it through sed @@ -23,8 +25,13 @@ class GitExporter(object): default refs/heads. This is to demonstrate how the export data can be stored under it's own ref (using the refspec capability). + + If None, refs defaults to ["HEAD"]. """ + if not refs: + refs = ["HEAD"] + dirname = self.repo.get_base_path(base) path = os.path.abspath(os.path.join(dirname, 'testgit.marks')) @@ -42,12 +49,10 @@ class GitExporter(object): if os.path.exists(path): args.append("--import-marks=" + path) - args.append("HEAD") + args.extend(refs) p1 = subprocess.Popen(args, stdout=subprocess.PIPE) args = ["sed", "s_refs/heads/_" + self.repo.prefix + "_g"] - child = subprocess.Popen(args, stdin=p1.stdout) - if child.wait() != 0: - raise CalledProcessError + check_call(args, stdin=p1.stdout) diff --git a/git_remote_helpers/git/importer.py b/git_remote_helpers/git/importer.py index 70a7127..5c6b595 100644 --- a/git_remote_helpers/git/importer.py +++ b/git_remote_helpers/git/importer.py @@ -1,6 +1,8 @@ import os import subprocess +from git_remote_helpers.util import check_call, check_output + class GitImporter(object): """An importer for testgit repositories. @@ -14,6 +16,18 @@ class GitImporter(object): self.repo = repo + def get_refs(self, gitdir): + """Returns a dictionary with refs. + """ + args = ["git", "--git-dir=" + gitdir, "for-each-ref", "refs/heads"] + lines = check_output(args).strip().split('\n') + refs = {} + for line in lines: + value, name = line.split(' ') + name = name.strip('commit\t') + refs[name] = value + return refs + def do_import(self, base): """Imports a fast-import stream to the given directory. @@ -30,11 +44,23 @@ class GitImporter(object): if not os.path.exists(dirname): os.makedirs(dirname) + refs_before = self.get_refs(gitdir) + args = ["git", "--git-dir=" + gitdir, "fast-import", "--quiet", "--export-marks=" + path] if os.path.exists(path): args.append("--import-marks=" + path) - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + check_call(args) + + refs_after = self.get_refs(gitdir) + + changed = {} + + for name, value in refs_after.iteritems(): + if refs_before.get(name) == value: + continue + + changed[name] = value + + return changed diff --git a/git_remote_helpers/git/non_local.py b/git_remote_helpers/git/non_local.py index f27389b..e700250 100644 --- a/git_remote_helpers/git/non_local.py +++ b/git_remote_helpers/git/non_local.py @@ -1,7 +1,7 @@ import os import subprocess -from git_remote_helpers.util import die, warn +from git_remote_helpers.util import check_call, die, warn class NonLocalGit(object): @@ -29,9 +29,7 @@ class NonLocalGit(object): os.makedirs(path) args = ["git", "clone", "--bare", "--quiet", self.repo.gitpath, path] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + check_call(args) return path @@ -45,14 +43,10 @@ class NonLocalGit(object): die("could not find repo at %s", path) args = ["git", "--git-dir=" + path, "fetch", "--quiet", self.repo.gitpath] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + check_call(args) args = ["git", "--git-dir=" + path, "update-ref", "refs/heads/master", "FETCH_HEAD"] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + child = check_call(args) def push(self, base): """Pushes from the non-local repo to base. @@ -63,7 +57,5 @@ class NonLocalGit(object): if not os.path.exists(path): die("could not find repo at %s", path) - args = ["git", "--git-dir=" + path, "push", "--quiet", self.repo.gitpath] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + args = ["git", "--git-dir=" + path, "push", "--quiet", self.repo.gitpath, "--all"] + child = check_call(args) diff --git a/git_remote_helpers/git/repo.py b/git_remote_helpers/git/repo.py index 58e1cdb..acbf8d7 100644 --- a/git_remote_helpers/git/repo.py +++ b/git_remote_helpers/git/repo.py @@ -1,6 +1,9 @@ import os import subprocess +from git_remote_helpers.util import check_call + + def sanitize(rev, sep='\t'): """Converts a for-each-ref line to a name/value pair. """ @@ -53,9 +56,7 @@ class GitRepo(object): path = ".cached_revs" ofile = open(path, "w") - child = subprocess.Popen(args, stdout=ofile) - if child.wait() != 0: - raise CalledProcessError + check_call(args, stdout=ofile) output = open(path).readlines() self.revmap = dict(sanitize(i) for i in output) if "HEAD" in self.revmap: diff --git a/git_remote_helpers/util.py b/git_remote_helpers/util.py index dce83e6..fbbb01b 100644 --- a/git_remote_helpers/util.py +++ b/git_remote_helpers/util.py @@ -11,6 +11,21 @@ import sys import os import subprocess +try: + from subprocess import CalledProcessError +except ImportError: + # from python2.7:subprocess.py + # Exception classes used by this module. + class CalledProcessError(Exception): + """This exception is raised when a process run by check_call() returns + a non-zero exit status. The exit status will be stored in the + returncode attribute.""" + def __init__(self, returncode, cmd): + self.returncode = returncode + self.cmd = cmd + def __str__(self): + return "Command '%s' returned non-zero exit status %d" % (self.cmd, self.returncode) + # Whether or not to show debug messages DEBUG = False @@ -128,6 +143,72 @@ def run_command (args, cwd = None, shell = False, add_env = None, return (exit_code, output, errors) +# from python2.7:subprocess.py +def call(*popenargs, **kwargs): + """Run command with arguments. Wait for command to complete, then + return the returncode attribute. + + The arguments are the same as for the Popen constructor. Example: + + retcode = call(["ls", "-l"]) + """ + return subprocess.Popen(*popenargs, **kwargs).wait() + + +# from python2.7:subprocess.py +def check_call(*popenargs, **kwargs): + """Run command with arguments. Wait for command to complete. If + the exit code was zero then return, otherwise raise + CalledProcessError. The CalledProcessError object will have the + return code in the returncode attribute. + + The arguments are the same as for the Popen constructor. Example: + + check_call(["ls", "-l"]) + """ + retcode = call(*popenargs, **kwargs) + if retcode: + cmd = kwargs.get("args") + if cmd is None: + cmd = popenargs[0] + raise CalledProcessError(retcode, cmd) + return 0 + + +# from python2.7:subprocess.py +def check_output(*popenargs, **kwargs): + r"""Run command with arguments and return its output as a byte string. + + If the exit code was non-zero it raises a CalledProcessError. The + CalledProcessError object will have the return code in the returncode + attribute and output in the output attribute. + + The arguments are the same as for the Popen constructor. Example: + + >>> check_output(["ls", "-l", "/dev/null"]) + 'crw-rw-rw- 1 root root 1, 3 Oct 18 2007 /dev/null\n' + + The stdout argument is not allowed as it is used internally. + To capture standard error in the result, use stderr=STDOUT. + + >>> check_output(["/bin/sh", "-c", + ... "ls -l non_existent_file ; exit 0"], + ... stderr=STDOUT) + 'ls: non_existent_file: No such file or directory\n' + """ + if 'stdout' in kwargs: + raise ValueError('stdout argument not allowed, it will be overridden.') + process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs) + output, unused_err = process.communicate() + retcode = process.poll() + if retcode: + cmd = kwargs.get("args") + if cmd is None: + cmd = popenargs[0] + raise subprocess.CalledProcessError(retcode, cmd) + return output + + def file_reader_method (missing_ok = False): """Decorator for simplifying reading of files. |