From 1e8cc09743d624c52c192459c31773c6be288144 Mon Sep 17 00:00:00 2001 From: "W. Trevor King" Date: Tue, 30 Jun 2009 11:29:06 -0400 Subject: [PATCH] Added darcs support. I don't know much darcs, so I make no claims about the beauty of my implementation. It seems to get the job done though, until a darcs guru comes along. I also tweaked the libbe.git.Git._rcs_get_user_id to handle the case where user.name or user.email are not set. I also added the option to pass a stdin string into the libbe.rcs.RCS._u_invoke* functions. --- libbe/bugdir.py | 2 +- libbe/darcs.py | 164 ++++++++++++++++++++++++++++++++++++++++++++++++ libbe/git.py | 9 ++- libbe/rcs.py | 18 +++--- test_usage.sh | 41 +++++++----- 5 files changed, 208 insertions(+), 26 deletions(-) create mode 100644 libbe/darcs.py diff --git a/libbe/bugdir.py b/libbe/bugdir.py index 3c2c247..3ad5824 100644 --- a/libbe/bugdir.py +++ b/libbe/bugdir.py @@ -181,7 +181,7 @@ that the Arch RCS backend *enforces* ids with this format.""", settings easy. Don't set this attribute. Set .rcs instead, and .rcs_name will be automatically adjusted.""", default="None", - allowed=["None", "Arch", "bzr", "git", "hg"]) + allowed=["None", "Arch", "bzr", "darcs", "git", "hg"]) def rcs_name(): return {} def _get_rcs(self, rcs_name=None): diff --git a/libbe/darcs.py b/libbe/darcs.py new file mode 100644 index 0000000..a3b52b6 --- /dev/null +++ b/libbe/darcs.py @@ -0,0 +1,164 @@ +# Copyright (C) 2007 Chris Ball , +# 2009 W. Trevor King +# +# 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. +# +# 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 + +import codecs +import os +import re +import sys +import unittest +import doctest + +import rcs +from rcs import RCS + +def new(): + return Darcs() + +class Darcs(RCS): + name="darcs" + client="darcs" + versioned=True + def _rcs_help(self): + status,output,error = self._u_invoke_client("--help") + return output + def _rcs_detect(self, path): + if self._u_search_parent_directories(path, "_darcs") != None : + return True + return False + def _rcs_root(self, path): + """Find the root of the deepest repository containing path.""" + # Assume that nothing funny is going on; in particular, that we aren't + # dealing with a bare repo. + if os.path.isdir(path) != True: + path = os.path.dirname(path) + darcs_dir = self._u_search_parent_directories(path, "_darcs") + if darcs_dir == None: + return None + return os.path.dirname(darcs_dir) + def _rcs_init(self, path): + self._u_invoke_client("init", directory=path) + def _rcs_get_user_id(self): + # following http://darcs.net/manual/node4.html#SECTION00410030000000000000 + # as of June 29th, 2009 + if self.rootdir == None: + return None + darcs_dir = os.path.join(self.rootdir, "_darcs") + if darcs_dir != None: + for pref_file in ["author", "email"]: + pref_path = os.path.join(darcs_dir, "prefs", pref_file) + if os.path.exists(pref_path): + return self.get_file_contents(pref_path) + for env_variable in ["DARCS_EMAIL", "EMAIL"]: + if env_variable in os.environ: + return os.environ[env_variable] + return None + def _rcs_set_user_id(self, value): + if self.rootdir == None: + self.root(".") + if self.rootdir == None: + raise rcs.SettingIDnotSupported + author_path = os.path.join(self.rootdir, "_darcs", "prefs", "author") + f = codecs.open(author_path, "w", self.encoding) + f.write(value) + f.close() + def _rcs_add(self, path): + if os.path.isdir(path): + return + self._u_invoke_client("add", path) + def _rcs_remove(self, path): + if not os.path.isdir(self._u_abspath(path)): + os.remove(os.path.join(self.rootdir, path)) # darcs notices removal + def _rcs_update(self, path): + pass # darcs notices changes + def _rcs_get_file_contents(self, path, revision=None, binary=False): + if revision == None: + return RCS._rcs_get_file_contents(self, path, revision, + binary=binary) + else: + try: + return self._u_invoke_client("show", "contents", "--patch", revision, path) + except rcs.CommandError: + # Darcs versions < 2.0.0pre2 lack the "show contents" command + + status,output,error = self._u_invoke_client("diff", "--unified", + "--from-patch", + revision, path) + major_patch = output + status,output,error = self._u_invoke_client("diff", "--unified", + "--patch", + revision, path) + target_patch = output + + # "--output -" to be supported in GNU patch > 2.5.9 + # but that hasn't been released as of June 30th, 2009. + + # Rewrite path to status before the patch we want + args=["patch", "--reverse", path] + status,output,error = self._u_invoke(args, stdin=major_patch) + # Now apply the patch we want + args=["patch", path] + status,output,error = self._u_invoke(args, stdin=target_patch) + + if os.path.exists(os.path.join(self.rootdir, path)) == True: + contents = RCS._rcs_get_file_contents(self, path, + binary=binary) + else: + contents = "" + + # Now restore path to it's current incarnation + args=["patch", "--reverse", path] + status,output,error = self._u_invoke(args, stdin=target_patch) + args=["patch", path] + status,output,error = self._u_invoke(args, stdin=major_patch) + current_contents = RCS._rcs_get_file_contents(self, path, + binary=binary) + return contents + def _rcs_duplicate_repo(self, directory, revision=None): + if revision==None: + RCS._rcs_duplicate_repo(self, directory, revision) + else: + self._u_invoke_client("put", "--no-pristine-tree", + "--to-patch", revision, directory) + def _rcs_commit(self, commitfile): + id = self.get_user_id() + if '@' not in id: + id = "%s <%s@invalid.com>" % (id, id) + # Darcs doesn't like commitfiles without trailing endlines. + f = codecs.open(commitfile, 'r', self.encoding) + contents = f.read() + f.close() + if contents[-1] != '\n': + f = codecs.open(commitfile, 'a', self.encoding) + f.write('\n') + f.close() + status,output,error = self._u_invoke_client('record', '--all', + '--author', id, + '--logfile', commitfile) + revision = None + + revline = re.compile("Finished recording patch '(.*)'") + match = revline.search(output) + assert match != None, output+error + assert len(match.groups()) == 1 + revision = match.groups()[0] + return revision + + +rcs.make_rcs_testcase_subclasses(Darcs, sys.modules[__name__]) + +unitsuite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) +suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()]) diff --git a/libbe/git.py b/libbe/git.py index 5da1f86..8c25416 100644 --- a/libbe/git.py +++ b/libbe/git.py @@ -55,7 +55,14 @@ class Git(RCS): name = output.rstrip('\n') status,output,error = self._u_invoke_client("config", "user.email") email = output.rstrip('\n') - return self._u_create_id(name, email) + if name != "" or email != "": # got something! + # guess missing info, if necessary + if name == "": + name = self._u_get_fallback_username() + if email == "": + email = self._u_get_fallback_email() + return self._u_create_id(name, email) + return None # Git has no infomation def _rcs_set_user_id(self, value): name,email = self._u_parse_id(value) if email != None: diff --git a/libbe/rcs.py b/libbe/rcs.py index 9c2defe..f19f00f 100644 --- a/libbe/rcs.py +++ b/libbe/rcs.py @@ -34,9 +34,10 @@ def _get_matching_rcs(matchfn): """Return the first module for which matchfn(RCS_instance) is true""" import arch import bzr - import hg + import darcs import git - for module in [arch, bzr, hg, git]: + import hg + for module in [arch, bzr, darcs, git, hg]: rcs = module.new() if matchfn(rcs) == True: return rcs @@ -383,7 +384,7 @@ class RCS(object): pass def postcommit(self, directory): pass - def _u_invoke(self, args, expect=(0,), cwd=None): + def _u_invoke(self, args, stdin=None, expect=(0,), cwd=None): if cwd == None: cwd = self.rootdir if self.verboseInvoke == True: @@ -398,7 +399,7 @@ class RCS(object): except OSError, e : strerror = "%s\nwhile executing %s" % (e.args[1], args) raise CommandError(strerror, e.args[0]) - output, error = q.communicate() + output, error = q.communicate(input=stdin) status = q.wait() if self.verboseInvoke == True: print >> sys.stderr, "%d\n%s%s" % (status, output, error) @@ -409,9 +410,10 @@ class RCS(object): def _u_invoke_client(self, *args, **kwargs): directory = kwargs.get('directory',None) expect = kwargs.get('expect', (0,)) + stdin = kwargs.get('stdin', None) cl_args = [self.client] cl_args.extend(args) - return self._u_invoke(cl_args, expect, cwd=directory) + return self._u_invoke(cl_args, stdin=stdin,expect=expect,cwd=directory) def _u_search_parent_directories(self, path, filename): """ Find the file (or directory) named filename in path or in any @@ -567,10 +569,12 @@ def setup_rcs_test_fixtures(testcase): testcase.dir = Dir() testcase.dirname = testcase.dir.path + rcs_not_supporting_uninitialized_user_id = [] + rcs_not_supporting_set_user_id = ["None", "hg"] testcase.rcs_supports_uninitialized_user_id = ( - testcase.rcs.name not in ["git"]) + testcase.rcs.name not in rcs_not_supporting_uninitialized_user_id) testcase.rcs_supports_set_user_id = ( - testcase.rcs.name not in ["None", "hg"]) + testcase.rcs.name not in rcs_not_supporting_set_user_id) if not testcase.rcs.installed(): testcase.fail( diff --git a/test_usage.sh b/test_usage.sh index 42c0f2f..b7391d9 100755 --- a/test_usage.sh +++ b/test_usage.sh @@ -23,14 +23,14 @@ then echo "usage: test_usage.sh [RCS]" echo "" echo "where RCS is one of" - for RCS in bzr git hg arch none + for RCS in arch bzr darcs git hg none do echo " $RCS" done exit 1 elif [ $# -eq 0 ] then - for RCS in bzr git hg arch none + for RCS in arch bzr darcs git hg none do echo -e "\n\nTesting $RCS\n\n" $0 "$RCS" || exit 1 @@ -43,21 +43,7 @@ RCS="$1" TESTDIR=`mktemp -d /tmp/BEtest.XXXXXXXXXX` cd $TESTDIR -if [ "$RCS" == "bzr" ] -then - ID=`bzr whoami` - bzr init -elif [ "$RCS" == "git" ] -then - NAME=`git-config user.name` - EMAIL=`git-config user.email` - ID="$NAME <$EMAIL>" - git init -elif [ "$RCS" == "hg" ] -then - ID=`hg showconfig ui.username` - hg init -elif [ "$RCS" == "arch" ] +if [ "$RCS" == "arch" ] then ID=`tla my-id` ARCH_PARAM_DIR="$HOME/.arch-params" @@ -76,6 +62,27 @@ then sed -i 's/^source .*/source ^[._=a-zA-X0-9].*$/' '{arch}/=tagging-method' echo "tla import -A $ARCH_ARCHIVE --summary 'Began versioning'" tla import -A $ARCH_ARCHIVE --summary 'Began versioning' +elif [ "$RCS" == "bzr" ] +then + ID=`bzr whoami` + bzr init +elif [ "$RCS" == "darcs" ] +then + if [ -z "$DARCS_EMAIL" ]; then + export DARCS_EMAIL="J. Doe " + fi + ID="$DARCS_EMAIL" + darcs init +elif [ "$RCS" == "git" ] +then + NAME=`git-config user.name` + EMAIL=`git-config user.email` + ID="$NAME <$EMAIL>" + git init +elif [ "$RCS" == "hg" ] +then + ID=`hg showconfig ui.username` + hg init elif [ "$RCS" == "none" ] then ID=`id -nu` -- 2.26.2