diff options
Diffstat (limited to 'libbe/rcs.py')
| -rw-r--r-- | libbe/rcs.py | 95 |
1 files changed, 67 insertions, 28 deletions
diff --git a/libbe/rcs.py b/libbe/rcs.py index 844920a..294b8e0 100644 --- a/libbe/rcs.py +++ b/libbe/rcs.py @@ -4,19 +4,19 @@ # Chris Ball <cjb@laptop.org> # W. Trevor King <wking@drexel.edu> # -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. # -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. # -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. from subprocess import Popen, PIPE import codecs @@ -61,10 +61,13 @@ def installed_rcs(): class CommandError(Exception): - def __init__(self, err_str, status): - Exception.__init__(self, "Command failed (%d): %s" % (status, err_str)) - self.err_str = err_str + def __init__(self, command, status, err_str): + strerror = ["Command failed (%d):\n %s\n" % (status, err_str), + "while executing\n %s" % command] + Exception.__init__(self, "\n".join(strerror)) + self.command = command self.status = status + self.err_str = err_str class SettingIDnotSupported(NotImplementedError): pass @@ -86,6 +89,10 @@ class NoSuchFile(Exception): path = os.path.abspath(os.path.join(root, pathname)) Exception.__init__(self, "No such file: %s" % path) +class EmptyCommit(Exception): + def __init__(self): + Exception.__init__(self, "No changes to commit") + def new(): return RCS() @@ -186,7 +193,7 @@ class RCS(object): if binary == False: f = codecs.open(os.path.join(self.rootdir, path), "r", self.encoding) else: - f = open(path, "rb") + f = open(os.path.join(self.rootdir, path), "rb") contents = f.read() f.close() return contents @@ -197,11 +204,14 @@ class RCS(object): dir specifies a directory to create the duplicate in. """ shutil.copytree(self.rootdir, directory, True) - def _rcs_commit(self, commitfile): + def _rcs_commit(self, commitfile, allow_empty=False): """ Commit the current working directory, using the contents of commitfile as the comment. Return the name of the old - revision. + revision (or None if commits are not supported). + + If allow_empty == False, raise EmptyCommit if there are no + changes to commit. """ return None def installed(self): @@ -329,11 +339,15 @@ class RCS(object): self.add(path) else: self.update(path) - def mkdir(self, path, allow_no_rcs=False): + def mkdir(self, path, allow_no_rcs=False, check_parents=True): """ Create (if neccessary) a directory at path under version control. """ + if check_parents == True: + parent = os.path.dirname(path) + if not os.path.exists(parent): # recurse through parents + self.mkdir(parent, allow_no_rcs, check_parents) if not os.path.exists(path): os.mkdir(path) if self._use_rcs(path, allow_no_rcs): @@ -341,7 +355,9 @@ class RCS(object): else: assert os.path.isdir(path) if self._use_rcs(path, allow_no_rcs): - self.update(path) + #self.update(path)# Don't update directories. Changing files + pass # underneath them should be sufficient. + def duplicate_repo(self, revision=None): """ Get the repository as it was in a given revision. @@ -364,30 +380,55 @@ class RCS(object): shutil.rmtree(self._duplicateBasedir) self._duplicateBasedir = None self._duplicateDirname = None - def commit(self, summary, body=None): + def commit(self, summary, body=None, allow_empty=False): """ Commit the current working directory, with a commit message string summary and body. Return the name of the old revision (or None if versioning is not supported). + + If allow_empty == False (the default), raise EmptyCommit if + there are no changes to commit. """ + summary = summary.strip()+'\n' if body is not None: - summary += '\n' + body + summary += '\n' + body.strip() + '\n' descriptor, filename = tempfile.mkstemp() revision = None try: temp_file = os.fdopen(descriptor, 'wb') temp_file.write(summary) temp_file.flush() - revision = self._rcs_commit(filename) + self.precommit() + revision = self._rcs_commit(filename, allow_empty=allow_empty) temp_file.close() + self.postcommit() finally: os.remove(filename) return revision - def precommit(self, directory): + def precommit(self): + """ + Executed before all attempted commits. + """ pass - def postcommit(self, directory): + def postcommit(self): + """ + Only executed after successful commits. + """ pass + def _u_any_in_string(self, list, string): + """ + Return True if any of the strings in list are in string. + Otherwise return False. + """ + for list_string in list: + if list_string in string: + return True + return False def _u_invoke(self, args, stdin=None, expect=(0,), cwd=None): + """ + expect should be a tuple of allowed exit codes. cwd should be + the directory from which the command will be executed. + """ if cwd == None: cwd = self.rootdir if self.verboseInvoke == True: @@ -400,15 +441,13 @@ class RCS(object): q = Popen(args, stdin=PIPE, stdout=PIPE, stderr=PIPE, shell=True, cwd=cwd) except OSError, e : - strerror = "%s\nwhile executing %s" % (e.args[1], args) - raise CommandError(strerror, e.args[0]) + raise CommandError(args, e.args[0], e) output, error = q.communicate(input=stdin) status = q.wait() if self.verboseInvoke == True: print >> sys.stderr, "%d\n%s%s" % (status, output, error) if status not in expect: - strerror = "%s\nwhile executing %s\n%s" % (args[1], args, error) - raise CommandError(strerror, status) + raise CommandError(args, status, error) return status, output, error def _u_invoke_client(self, *args, **kwargs): directory = kwargs.get('directory',None) |