add hg and python

sys/lib/python/hgext/convert/monotone.py

@@ -0,0 +1,217 @@
+# monotone.py - monotone support for the convert extension
+#
+#  Copyright 2008, 2009 Mikkel Fahnoe Jorgensen <mikkel@dvide.com> and
+#  others
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2, incorporated herein by reference.
+
+import os, re
+from mercurial import util
+from common import NoRepo, commit, converter_source, checktool
+from common import commandline
+from mercurial.i18n import _
+
+class monotone_source(converter_source, commandline):
+    def __init__(self, ui, path=None, rev=None):
+        converter_source.__init__(self, ui, path, rev)
+        commandline.__init__(self, ui, 'mtn')
+
+        self.ui = ui
+        self.path = path
+
+        norepo = NoRepo (_("%s does not look like a monotone repo") % path)
+        if not os.path.exists(os.path.join(path, '_MTN')):
+            # Could be a monotone repository (SQLite db file)
+            try:
+                header = file(path, 'rb').read(16)
+            except:
+                header = ''
+            if header != 'SQLite format 3\x00':
+                raise norepo
+
+        # regular expressions for parsing monotone output
+        space    = r'\s*'
+        name     = r'\s+"((?:\\"|[^"])*)"\s*'
+        value    = name
+        revision = r'\s+\[(\w+)\]\s*'
+        lines    = r'(?:.|\n)+'
+
+        self.dir_re      = re.compile(space + "dir" + name)
+        self.file_re     = re.compile(space + "file" + name + "content" + revision)
+        self.add_file_re = re.compile(space + "add_file" + name + "content" + revision)
+        self.patch_re    = re.compile(space + "patch" + name + "from" + revision + "to" + revision)
+        self.rename_re   = re.compile(space + "rename" + name + "to" + name)
+        self.delete_re   = re.compile(space + "delete" + name)
+        self.tag_re      = re.compile(space + "tag" + name + "revision" + revision)
+        self.cert_re     = re.compile(lines + space + "name" + name + "value" + value)
+
+        attr = space + "file" + lines + space + "attr" + space
+        self.attr_execute_re = re.compile(attr  + '"mtn:execute"' + space + '"true"')
+
+        # cached data
+        self.manifest_rev = None
+        self.manifest = None
+        self.files = None
+        self.dirs  = None
+
+        checktool('mtn', abort=False)
+
+        # test if there are any revisions
+        self.rev = None
+        try:
+            self.getheads()
+        except:
+            raise norepo
+        self.rev = rev
+
+    def mtnrun(self, *args, **kwargs):
+        kwargs['d'] = self.path
+        return self.run0('automate', *args, **kwargs)
+
+    def mtnloadmanifest(self, rev):
+        if self.manifest_rev == rev:
+            return
+        self.manifest = self.mtnrun("get_manifest_of", rev).split("\n\n")
+        self.manifest_rev = rev
+        self.files = {}
+        self.dirs = {}
+
+        for e in self.manifest:
+            m = self.file_re.match(e)
+            if m:
+                attr = ""
+                name = m.group(1)
+                node = m.group(2)
+                if self.attr_execute_re.match(e):
+                    attr += "x"
+                self.files[name] = (node, attr)
+            m = self.dir_re.match(e)
+            if m:
+                self.dirs[m.group(1)] = True
+
+    def mtnisfile(self, name, rev):
+        # a non-file could be a directory or a deleted or renamed file
+        self.mtnloadmanifest(rev)
+        return name in self.files
+
+    def mtnisdir(self, name, rev):
+        self.mtnloadmanifest(rev)
+        return name in self.dirs
+
+    def mtngetcerts(self, rev):
+        certs = {"author":"<missing>", "date":"<missing>",
+            "changelog":"<missing>", "branch":"<missing>"}
+        cert_list = self.mtnrun("certs", rev).split('\n\n      key "')
+        for e in cert_list:
+            m = self.cert_re.match(e)
+            if m:
+                name, value = m.groups()
+                value = value.replace(r'\"', '"')
+                value = value.replace(r'\\', '\\')
+                certs[name] = value
+        # Monotone may have subsecond dates: 2005-02-05T09:39:12.364306
+        # and all times are stored in UTC
+        certs["date"] = certs["date"].split('.')[0] + " UTC"
+        return certs
+
+    # implement the converter_source interface:
+
+    def getheads(self):
+        if not self.rev:
+            return self.mtnrun("leaves").splitlines()
+        else:
+            return [self.rev]
+
+    def getchanges(self, rev):
+        #revision = self.mtncmd("get_revision %s" % rev).split("\n\n")
+        revision = self.mtnrun("get_revision", rev).split("\n\n")
+        files = {}
+        ignoremove = {}
+        renameddirs = []
+        copies = {}
+        for e in revision:
+            m = self.add_file_re.match(e)
+            if m:
+                files[m.group(1)] = rev
+                ignoremove[m.group(1)] = rev
+            m = self.patch_re.match(e)
+            if m:
+                files[m.group(1)] = rev
+            # Delete/rename is handled later when the convert engine
+            # discovers an IOError exception from getfile,
+            # but only if we add the "from" file to the list of changes.
+            m = self.delete_re.match(e)
+            if m:
+                files[m.group(1)] = rev
+            m = self.rename_re.match(e)
+            if m:
+                toname = m.group(2)
+                fromname = m.group(1)
+                if self.mtnisfile(toname, rev):
+                    ignoremove[toname] = 1
+                    copies[toname] = fromname
+                    files[toname] = rev
+                    files[fromname] = rev
+                elif self.mtnisdir(toname, rev):
+                    renameddirs.append((fromname, toname))
+
+        # Directory renames can be handled only once we have recorded
+        # all new files
+        for fromdir, todir in renameddirs:
+            renamed = {}
+            for tofile in self.files:
+                if tofile in ignoremove:
+                    continue
+                if tofile.startswith(todir + '/'):
+                    renamed[tofile] = fromdir + tofile[len(todir):]
+                    # Avoid chained moves like:
+                    # d1(/a) => d3/d1(/a)
+                    # d2 => d3
+                    ignoremove[tofile] = 1
+            for tofile, fromfile in renamed.items():
+                self.ui.debug (_("copying file in renamed directory "
+                                 "from '%s' to '%s'")
+                               % (fromfile, tofile), '\n')
+                files[tofile] = rev
+                copies[tofile] = fromfile
+            for fromfile in renamed.values():
+                files[fromfile] = rev
+
+        return (files.items(), copies)
+
+    def getmode(self, name, rev):
+        self.mtnloadmanifest(rev)
+        node, attr = self.files.get(name, (None, ""))
+        return attr
+
+    def getfile(self, name, rev):
+        if not self.mtnisfile(name, rev):
+            raise IOError() # file was deleted or renamed
+        try:
+            return self.mtnrun("get_file_of", name, r=rev)
+        except:
+            raise IOError() # file was deleted or renamed
+
+    def getcommit(self, rev):
+        certs   = self.mtngetcerts(rev)
+        return commit(
+            author=certs["author"],
+            date=util.datestr(util.strdate(certs["date"], "%Y-%m-%dT%H:%M:%S")),
+            desc=certs["changelog"],
+            rev=rev,
+            parents=self.mtnrun("parents", rev).splitlines(),
+            branch=certs["branch"])
+
+    def gettags(self):
+        tags = {}
+        for e in self.mtnrun("tags").split("\n\n"):
+            m = self.tag_re.match(e)
+            if m:
+                tags[m.group(1)] = m.group(2)
+        return tags
+
+    def getchangedfiles(self, rev, i):
+        # This function is only needed to support --filemap
+        # ... and we don't support that
+        raise NotImplementedError()