view hgext/convert/git.py @ 5119:0751c25ea0c0

raise util.Abort again if specified revision is not an integer. This was changed to NoRepo in 462cc56d898f, because specifying non-integer revisions for e.g. the Mercurial backend caused Abort to be raised in the subversion importer. Now util.Abort is raised again, but the check is done after verifying if it really is a subversion repository.
author Thomas Arendsen Hein <thomas@intevation.de>
date Tue, 07 Aug 2007 12:24:25 +0200
parents ef338e34a906
children 7d3dcdd92a1a
line wrap: on
line source

# git support for the convert extension

import os

from common import NoRepo, commit, converter_source

class convert_git(converter_source):
    def gitcmd(self, s):
        return os.popen('GIT_DIR=%s %s' % (self.path, s))

    def __init__(self, ui, path, rev=None):
        super(convert_git, self).__init__(ui, path, rev=rev)

        if os.path.isdir(path + "/.git"):
            path += "/.git"
        if not os.path.exists(path + "/objects"):
            raise NoRepo("couldn't open GIT repo %s" % path)
        self.path = path

    def getheads(self):
        if not self.rev:
            return self.gitcmd('git-rev-parse --branches').read().splitlines()
        else:
            fh = self.gitcmd("git-rev-parse --verify %s" % self.rev)
            return [fh.read()[:-1]]

    def catfile(self, rev, type):
        if rev == "0" * 40: raise IOError()
        fh = self.gitcmd("git-cat-file %s %s 2>/dev/null" % (type, rev))
        return fh.read()

    def getfile(self, name, rev):
        return self.catfile(rev, "blob")

    def getmode(self, name, rev):
        return self.modecache[(name, rev)]

    def getchanges(self, version):
        self.modecache = {}
        fh = self.gitcmd("git-diff-tree --root -m -r %s" % version)
        changes = []
        for l in fh:
            if "\t" not in l: continue
            m, f = l[:-1].split("\t")
            m = m.split()
            h = m[3]
            p = (m[1] == "100755")
            s = (m[1] == "120000")
            self.modecache[(f, h)] = (p and "x") or (s and "l") or ""
            changes.append((f, h))
        return (changes, {})

    def getcommit(self, version):
        c = self.catfile(version, "commit") # read the commit hash
        end = c.find("\n\n")
        message = c[end+2:]
        message = self.recode(message)
        l = c[:end].splitlines()
        manifest = l[0].split()[1]
        parents = []
        for e in l[1:]:
            n, v = e.split(" ", 1)
            if n == "author":
                p = v.split()
                tm, tz = p[-2:]
                author = " ".join(p[:-2])
                if author[0] == "<": author = author[1:-1]
                author = self.recode(author)
            if n == "committer":
                p = v.split()
                tm, tz = p[-2:]
                committer = " ".join(p[:-2])
                if committer[0] == "<": committer = committer[1:-1]
                committer = self.recode(committer)
                message += "\ncommitter: %s\n" % committer
            if n == "parent": parents.append(v)

        tzs, tzh, tzm = tz[-5:-4] + "1", tz[-4:-2], tz[-2:]
        tz = -int(tzs) * (int(tzh) * 3600 + int(tzm))
        date = tm + " " + str(tz)
        author = author or "unknown"

        c = commit(parents=parents, date=date, author=author, desc=message,
                   rev=version)
        return c

    def gettags(self):
        tags = {}
        fh = self.gitcmd('git-ls-remote --tags "%s" 2>/dev/null' % self.path)
        prefix = 'refs/tags/'
        for line in fh:
            line = line.strip()
            if not line.endswith("^{}"):
                continue
            node, tag = line.split(None, 1)
            if not tag.startswith(prefix):
                continue
            tag = tag[len(prefix):-3]
            tags[tag] = node

        return tags