# record.py## Copyright 2007 Bryan O'Sullivan <bos@serpentine.com>## This software may be used and distributed according to the terms of the# GNU General Public License version 2, incorporated herein by reference. '''commands to interactively select changes for commit/qrefresh''' from mercurial.i18n import gettext, _from mercurial import cmdutil, commands, extensions, hg, mdiff, patchfrom mercurial import utilimport copy, cStringIO, errno, operator, os, re, tempfile lines_re = re.compile(r'@@ -(\d+),(\d+) \+(\d+),(\d+) @@\s*(.*)') def scanpatch(fp): """like patch.iterhunks, but yield different events - ('file', [header_lines + fromfile + tofile]) - ('context', [context_lines]) - ('hunk', [hunk_lines]) - ('range', (-start,len, +start,len, diffp)) """ lr = patch.linereader(fp) def scanwhile(first, p): """scan lr while predicate holds""" lines = [first] while True: line = lr.readline() if not line: break if p(line): lines.append(line) else: lr.push(line) break return lines while True: line = lr.readline() if not line: break if line.startswith('diff --git a/'): def notheader(line): s = line.split(None, 1) return not s or s[0] not in ('---', 'diff') header = scanwhile(line, notheader) fromfile = lr.readline() if fromfile.startswith('---'): tofile = lr.readline() header += [fromfile, tofile] else: lr.push(fromfile) yield 'file', header elif line[0] == ' ': yield 'context', scanwhile(line, lambda l: l[0] in ' \\') elif line[0] in '-+': yield 'hunk', scanwhile(line, lambda l: l[0] in '-+\\') else: m = lines_re.match(line) if m: yield 'range', m.groups() else: raise patch.PatchError('unknown patch content: %r' % line) class header(object): """patch header XXX shoudn't we move this to mercurial/patch.py ? """ diff_re = re.compile('diff --git a/(.*) b/(.*)$') allhunks_re = re.compile('(?:index|new file|deleted file) ') pretty_re = re.compile('(?:new file|deleted file) ') special_re = re.compile('(?:index|new|deleted|copy|rename) ') def __init__(self, header): self.header = header self.hunks = [] def binary(self): for h in self.header: if h.startswith('index '): return True def pretty(self, fp): for h in self.header: if h.startswith('index '): fp.write(_('this modifies a binary file (all or nothing)\n')) break if self.pretty_re.match(h): fp.write(h) if self.binary(): fp.write(_('this is a binary file\n')) break if h.startswith('---'): fp.write(_('%d hunks, %d lines changed\n') % (len(self.hunks), sum([h.added + h.removed for h in self.hunks]))) break fp.write(h) def write(self, fp): fp.write(''.join(self.header)) def allhunks(self): for h in self.header: if self.allhunks_re.match(h): return True def files(self): fromfile, tofile = self.diff_re.match(self.header[0]).groups() if fromfile == tofile: return [fromfile] return [fromfile, tofile] def filename(self): return self.files()[-1] def __repr__(self): return '<header %s>' % (' '.join(map(repr, self.files()))) def special(self): for h in self.header: if self.special_re.match(h): return True def countchanges(hunk): """hunk -> (n+,n-)""" add = len([h for h in hunk if h[0] == '+']) rem = len([h for h in hunk if h[0] == '-']) return add, rem class hunk(object): """patch hunk XXX shouldn't we merge this with patch.hunk ? """ maxcontext = 3 def __init__(self, header, fromline, toline, proc, before, hunk, after): def trimcontext(number, lines): delta = len(lines) - self.maxcontext if False and delta > 0: return number + delta, lines[:self.maxcontext] return number, lines self.header = header self.fromline, self.before = trimcontext(fromline, before) self.toline, self.after = trimcontext(toline, after) self.proc = proc self.hunk = hunk self.added, self.removed = countchanges(self.hunk) def write(self, fp): delta = len(self.before) + len(self.after) if self.after and self.after[-1] == '\\ No newline at end of file\n': delta -= 1 fromlen = delta + self.removed tolen = delta + self.added fp.write('@@ -%d,%d +%d,%d @@%s\n' % (self.fromline, fromlen, self.toline, tolen, self.proc and (' ' + self.proc))) fp.write(''.join(self.before + self.hunk + self.after)) pretty = write def filename(self): return self.header.filename() def __repr__(self): return '<hunk %r@%d>' % (self.filename(), self.fromline) def parsepatch(fp): """patch -> [] of hunks """ class parser(object): """patch parsing state machine""" def __init__(self): self.fromline = 0 self.toline = 0 self.proc = '' self.header = None self.context = [] self.before = [] self.hunk = [] self.stream = [] def addrange(self, (fromstart, fromend, tostart, toend, proc)): self.fromline = int(fromstart) self.toline = int(tostart) self.proc = proc def addcontext(self, context): if self.hunk: h = hunk(self.header, self.fromline, self.toline, self.proc, self.before, self.hunk, context) self.header.hunks.append(h) self.stream.append(h) self.fromline += len(self.before) + h.removed self.toline += len(self.before) + h.added self.before = [] self.hunk = [] self.proc = '' self.context = context def addhunk(self, hunk): if self.context: self.before = self.context self.context = [] self.hunk = hunk def newfile(self, hdr): self.addcontext([]) h = header(hdr) self.stream.append(h) self.header = h def finished(self): self.addcontext([]) return self.stream transitions = { 'file': {'context': addcontext, 'file': newfile, 'hunk': addhunk, 'range': addrange}, 'context': {'file': newfile, 'hunk': addhunk, 'range': addrange}, 'hunk': {'context': addcontext, 'file': newfile, 'range': addrange}, 'range': {'context': addcontext, 'hunk': addhunk}, } p = parser() state = 'context' for newstate, data in scanpatch(fp): try: p.transitions[state][newstate](p, data) except KeyError: raise patch.PatchError('unhandled transition: %s -> %s' % (state, newstate)) state = newstate return p.finished() def filterpatch(ui, chunks): """Interactively filter patch chunks into applied-only chunks""" chunks = list(chunks) chunks.reverse() seen = set() def consumefile(): """fetch next portion from chunks until a 'header' is seen NB: header == new-file mark """ consumed = [] while chunks: if isinstance(chunks[-1], header): break else: consumed.append(chunks.pop()) return consumed resp_all = [None] # this two are changed from inside prompt, resp_file = [None] # so can't be usual variables applied = {} # 'filename' -> [] of chunks def prompt(query): """prompt query, and process base inputs - y/n for the rest of file - y/n for the rest - ? (help) - q (quit) else, input is returned to the caller. """ if resp_all[0] is not None: return resp_all[0] if resp_file[0] is not None: return resp_file[0] while True: resps = _('[Ynsfdaq?]') choices = (_('&Yes, record this change'), _('&No, skip this change'), _('&Skip remaining changes to this file'), _('Record remaining changes to this &file'), _('&Done, skip remaining changes and files'), _('Record &all changes to all remaining files'), _('&Quit, recording no changes'), _('&?')) r = ui.promptchoice("%s %s " % (query, resps), choices) if r == 7: # ? doc = gettext(record.__doc__) c = doc.find(_('y - record this change')) for l in doc[c:].splitlines(): if l: ui.write(l.strip(), '\n') continue elif r == 0: # yes ret = 'y' elif r == 1: # no ret = 'n' elif r == 2: # Skip ret = resp_file[0] = 'n' elif r == 3: # file (Record remaining) ret = resp_file[0] = 'y' elif r == 4: # done, skip remaining ret = resp_all[0] = 'n' elif r == 5: # all ret = resp_all[0] = 'y' elif r == 6: # quit raise util.Abort(_('user quit')) return ret pos, total = 0, len(chunks) - 1 while chunks: chunk = chunks.pop() if isinstance(chunk, header): # new-file mark resp_file = [None] fixoffset = 0 hdr = ''.join(chunk.header) if hdr in seen: consumefile() continue seen.add(hdr) if resp_all[0] is None: chunk.pretty(ui) r = prompt(_('examine changes to %s?') % _(' and ').join(map(repr, chunk.files()))) if r == _('y'): applied[chunk.filename()] = [chunk] if chunk.allhunks(): applied[chunk.filename()] += consumefile() else: consumefile() else: # new hunk if resp_file[0] is None and resp_all[0] is None: chunk.pretty(ui) r = total == 1 and prompt(_('record this change to %r?') % chunk.filename()) \ or prompt(_('record change %d/%d to %r?') % (pos, total, chunk.filename())) if r == _('y'): if fixoffset: chunk = copy.copy(chunk) chunk.toline += fixoffset applied[chunk.filename()].append(chunk) else: fixoffset += chunk.removed - chunk.added pos = pos + 1 return reduce(operator.add, [h for h in applied.itervalues() if h[0].special() or len(h) > 1], []) def record(ui, repo, *pats, **opts): '''interactively select changes to commit If a list of files is omitted, all changes reported by "hg status" will be candidates for recording. See 'hg help dates' for a list of formats valid for -d/--date. You will be prompted for whether to record changes to each modified file, and for files with multiple changes, for each change to use. For each query, the following responses are possible:: y - record this change n - skip this change s - skip remaining changes to this file f - record remaining changes to this file d - done, skip remaining changes and files a - record all changes to all remaining files q - quit, recording no changes ? - display help''' def record_committer(ui, repo, pats, opts): commands.commit(ui, repo, *pats, **opts) dorecord(ui, repo, record_committer, *pats, **opts) def qrecord(ui, repo, patch, *pats, **opts): '''interactively record a new patch See 'hg help qnew' & 'hg help record' for more information and usage. ''' try: mq = extensions.find('mq') except KeyError: raise util.Abort(_("'mq' extension not loaded")) def qrecord_committer(ui, repo, pats, opts): mq.new(ui, repo, patch, *pats, **opts) opts = opts.copy() opts['force'] = True # always 'qnew -f' dorecord(ui, repo, qrecord_committer, *pats, **opts) def dorecord(ui, repo, committer, *pats, **opts): if not ui.interactive(): raise util.Abort(_('running non-interactively, use commit instead')) def recordfunc(ui, repo, message, match, opts): """This is generic record driver. Its job is to interactively filter local changes, and accordingly prepare working dir into a state, where the job can be delegated to non-interactive commit command such as 'commit' or 'qrefresh'. After the actual job is done by non-interactive command, working dir state is restored to original. In the end we'll record intresting changes, and everything else will be left in place, so the user can continue his work. """ changes = repo.status(match=match)[:3] diffopts = mdiff.diffopts(git=True, nodates=True) chunks = patch.diff(repo, changes=changes, opts=diffopts) fp = cStringIO.StringIO() fp.write(''.join(chunks)) fp.seek(0) # 1. filter patch, so we have intending-to apply subset of it chunks = filterpatch(ui, parsepatch(fp)) del fp contenders = set() for h in chunks: try: contenders.update(set(h.files())) except AttributeError: pass changed = changes[0] + changes[1] + changes[2] newfiles = [f for f in changed if f in contenders] if not newfiles: ui.status(_('no changes to record\n')) return 0 modified = set(changes[0]) # 2. backup changed files, so we can restore them in the end backups = {} backupdir = repo.join('record-backups') try: os.mkdir(backupdir) except OSError, err: if err.errno != errno.EEXIST: raise try: # backup continues for f in newfiles: if f not in modified: continue fd, tmpname = tempfile.mkstemp(prefix=f.replace('/', '_')+'.', dir=backupdir) os.close(fd) ui.debug(_('backup %r as %r\n') % (f, tmpname)) util.copyfile(repo.wjoin(f), tmpname) backups[f] = tmpname fp = cStringIO.StringIO() for c in chunks: if c.filename() in backups: c.write(fp) dopatch = fp.tell() fp.seek(0) # 3a. apply filtered patch to clean repo (clean) if backups: hg.revert(repo, repo.dirstate.parents()[0], backups.has_key) # 3b. (apply) if dopatch: try: ui.debug(_('applying patch\n')) ui.debug(fp.getvalue()) pfiles = {} patch.internalpatch(fp, ui, 1, repo.root, files=pfiles, eolmode=None) patch.updatedir(ui, repo, pfiles) except patch.PatchError, err: s = str(err) if s: raise util.Abort(s) else: raise util.Abort(_('patch failed to apply')) del fp # 4. We prepared working directory according to filtered patch. # Now is the time to delegate the job to commit/qrefresh or the like! Lines 1–500 of 551. Load more
# record.py # # Copyright 2007 Bryan O'Sullivan <bos@serpentine.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2, incorporated herein by reference. '''commands to interactively select changes for commit/qrefresh''' from mercurial.i18n import gettext, _ from mercurial import cmdutil, commands, extensions, hg, mdiff, patch from mercurial import util import copy, cStringIO, errno, operator, os, re, tempfile lines_re = re.compile(r'@@ -(\d+),(\d+) \+(\d+),(\d+) @@\s*(.*)') def scanpatch(fp): """like patch.iterhunks, but yield different events - ('file', [header_lines + fromfile + tofile]) - ('context', [context_lines]) - ('hunk', [hunk_lines]) - ('range', (-start,len, +start,len, diffp)) """ lr = patch.linereader(fp) def scanwhile(first, p): """scan lr while predicate holds""" lines = [first] while True: line = lr.readline() if not line: break if p(line): lines.append(line) else: lr.push(line) break return lines while True: line = lr.readline() if not line: break if line.startswith('diff --git a/'): def notheader(line): s = line.split(None, 1) return not s or s[0] not in ('---', 'diff') header = scanwhile(line, notheader) fromfile = lr.readline() if fromfile.startswith('---'): tofile = lr.readline() header += [fromfile, tofile] else: lr.push(fromfile) yield 'file', header elif line[0] == ' ': yield 'context', scanwhile(line, lambda l: l[0] in ' \\') elif line[0] in '-+': yield 'hunk', scanwhile(line, lambda l: l[0] in '-+\\') else: m = lines_re.match(line) if m: yield 'range', m.groups() else: raise patch.PatchError('unknown patch content: %r' % line) class header(object): """patch header XXX shoudn't we move this to mercurial/patch.py ? """ diff_re = re.compile('diff --git a/(.*) b/(.*)$') allhunks_re = re.compile('(?:index|new file|deleted file) ') pretty_re = re.compile('(?:new file|deleted file) ') special_re = re.compile('(?:index|new|deleted|copy|rename) ') def __init__(self, header): self.header = header self.hunks = [] def binary(self): for h in self.header: if h.startswith('index '): return True def pretty(self, fp): for h in self.header: if h.startswith('index '): fp.write(_('this modifies a binary file (all or nothing)\n')) break if self.pretty_re.match(h): fp.write(h) if self.binary(): fp.write(_('this is a binary file\n')) break if h.startswith('---'): fp.write(_('%d hunks, %d lines changed\n') % (len(self.hunks), sum([h.added + h.removed for h in self.hunks]))) break fp.write(h) def write(self, fp): fp.write(''.join(self.header)) def allhunks(self): for h in self.header: if self.allhunks_re.match(h): return True def files(self): fromfile, tofile = self.diff_re.match(self.header[0]).groups() if fromfile == tofile: return [fromfile] return [fromfile, tofile] def filename(self): return self.files()[-1] def __repr__(self): return '<header %s>' % (' '.join(map(repr, self.files()))) def special(self): for h in self.header: if self.special_re.match(h): return True def countchanges(hunk): """hunk -> (n+,n-)""" add = len([h for h in hunk if h[0] == '+']) rem = len([h for h in hunk if h[0] == '-']) return add, rem class hunk(object): """patch hunk XXX shouldn't we merge this with patch.hunk ? """ maxcontext = 3 def __init__(self, header, fromline, toline, proc, before, hunk, after): def trimcontext(number, lines): delta = len(lines) - self.maxcontext if False and delta > 0: return number + delta, lines[:self.maxcontext] return number, lines self.header = header self.fromline, self.before = trimcontext(fromline, before) self.toline, self.after = trimcontext(toline, after) self.proc = proc self.hunk = hunk self.added, self.removed = countchanges(self.hunk) def write(self, fp): delta = len(self.before) + len(self.after) if self.after and self.after[-1] == '\\ No newline at end of file\n': delta -= 1 fromlen = delta + self.removed tolen = delta + self.added fp.write('@@ -%d,%d +%d,%d @@%s\n' % (self.fromline, fromlen, self.toline, tolen, self.proc and (' ' + self.proc))) fp.write(''.join(self.before + self.hunk + self.after)) pretty = write def filename(self): return self.header.filename() def __repr__(self): return '<hunk %r@%d>' % (self.filename(), self.fromline) def parsepatch(fp): """patch -> [] of hunks """ class parser(object): """patch parsing state machine""" def __init__(self): self.fromline = 0 self.toline = 0 self.proc = '' self.header = None self.context = [] self.before = [] self.hunk = [] self.stream = [] def addrange(self, (fromstart, fromend, tostart, toend, proc)): self.fromline = int(fromstart) self.toline = int(tostart) self.proc = proc def addcontext(self, context): if self.hunk: h = hunk(self.header, self.fromline, self.toline, self.proc, self.before, self.hunk, context) self.header.hunks.append(h) self.stream.append(h) self.fromline += len(self.before) + h.removed self.toline += len(self.before) + h.added self.before = [] self.hunk = [] self.proc = '' self.context = context def addhunk(self, hunk): if self.context: self.before = self.context self.context = [] self.hunk = hunk def newfile(self, hdr): self.addcontext([]) h = header(hdr) self.stream.append(h) self.header = h def finished(self): self.addcontext([]) return self.stream transitions = { 'file': {'context': addcontext, 'file': newfile, 'hunk': addhunk, 'range': addrange}, 'context': {'file': newfile, 'hunk': addhunk, 'range': addrange}, 'hunk': {'context': addcontext, 'file': newfile, 'range': addrange}, 'range': {'context': addcontext, 'hunk': addhunk}, } p = parser() state = 'context' for newstate, data in scanpatch(fp): try: p.transitions[state][newstate](p, data) except KeyError: raise patch.PatchError('unhandled transition: %s -> %s' % (state, newstate)) state = newstate return p.finished() def filterpatch(ui, chunks): """Interactively filter patch chunks into applied-only chunks""" chunks = list(chunks) chunks.reverse() seen = set() def consumefile(): """fetch next portion from chunks until a 'header' is seen NB: header == new-file mark """ consumed = [] while chunks: if isinstance(chunks[-1], header): break else: consumed.append(chunks.pop()) return consumed resp_all = [None] # this two are changed from inside prompt, resp_file = [None] # so can't be usual variables applied = {} # 'filename' -> [] of chunks def prompt(query): """prompt query, and process base inputs - y/n for the rest of file - y/n for the rest - ? (help) - q (quit) else, input is returned to the caller. """ if resp_all[0] is not None: return resp_all[0] if resp_file[0] is not None: return resp_file[0] while True: resps = _('[Ynsfdaq?]') choices = (_('&Yes, record this change'), _('&No, skip this change'), _('&Skip remaining changes to this file'), _('Record remaining changes to this &file'), _('&Done, skip remaining changes and files'), _('Record &all changes to all remaining files'), _('&Quit, recording no changes'), _('&?')) r = ui.promptchoice("%s %s " % (query, resps), choices) if r == 7: # ? doc = gettext(record.__doc__) c = doc.find(_('y - record this change')) for l in doc[c:].splitlines(): if l: ui.write(l.strip(), '\n') continue elif r == 0: # yes ret = 'y' elif r == 1: # no ret = 'n' elif r == 2: # Skip ret = resp_file[0] = 'n' elif r == 3: # file (Record remaining) ret = resp_file[0] = 'y' elif r == 4: # done, skip remaining ret = resp_all[0] = 'n' elif r == 5: # all ret = resp_all[0] = 'y' elif r == 6: # quit raise util.Abort(_('user quit')) return ret pos, total = 0, len(chunks) - 1 while chunks: chunk = chunks.pop() if isinstance(chunk, header): # new-file mark resp_file = [None] fixoffset = 0 hdr = ''.join(chunk.header) if hdr in seen: consumefile() continue seen.add(hdr) if resp_all[0] is None: chunk.pretty(ui) r = prompt(_('examine changes to %s?') % _(' and ').join(map(repr, chunk.files()))) if r == _('y'): applied[chunk.filename()] = [chunk] if chunk.allhunks(): applied[chunk.filename()] += consumefile() else: consumefile() else: # new hunk if resp_file[0] is None and resp_all[0] is None: chunk.pretty(ui) r = total == 1 and prompt(_('record this change to %r?') % chunk.filename()) \ or prompt(_('record change %d/%d to %r?') % (pos, total, chunk.filename())) if r == _('y'): if fixoffset: chunk = copy.copy(chunk) chunk.toline += fixoffset applied[chunk.filename()].append(chunk) else: fixoffset += chunk.removed - chunk.added pos = pos + 1 return reduce(operator.add, [h for h in applied.itervalues() if h[0].special() or len(h) > 1], []) def record(ui, repo, *pats, **opts): '''interactively select changes to commit If a list of files is omitted, all changes reported by "hg status" will be candidates for recording. See 'hg help dates' for a list of formats valid for -d/--date. You will be prompted for whether to record changes to each modified file, and for files with multiple changes, for each change to use. For each query, the following responses are possible:: y - record this change n - skip this change s - skip remaining changes to this file f - record remaining changes to this file d - done, skip remaining changes and files a - record all changes to all remaining files q - quit, recording no changes ? - display help''' def record_committer(ui, repo, pats, opts): commands.commit(ui, repo, *pats, **opts) dorecord(ui, repo, record_committer, *pats, **opts) def qrecord(ui, repo, patch, *pats, **opts): '''interactively record a new patch See 'hg help qnew' & 'hg help record' for more information and usage. ''' try: mq = extensions.find('mq') except KeyError: raise util.Abort(_("'mq' extension not loaded")) def qrecord_committer(ui, repo, pats, opts): mq.new(ui, repo, patch, *pats, **opts) opts = opts.copy() opts['force'] = True # always 'qnew -f' dorecord(ui, repo, qrecord_committer, *pats, **opts) def dorecord(ui, repo, committer, *pats, **opts): if not ui.interactive(): raise util.Abort(_('running non-interactively, use commit instead')) def recordfunc(ui, repo, message, match, opts): """This is generic record driver. Its job is to interactively filter local changes, and accordingly prepare working dir into a state, where the job can be delegated to non-interactive commit command such as 'commit' or 'qrefresh'. After the actual job is done by non-interactive command, working dir state is restored to original. In the end we'll record intresting changes, and everything else will be left in place, so the user can continue his work. """ changes = repo.status(match=match)[:3] diffopts = mdiff.diffopts(git=True, nodates=True) chunks = patch.diff(repo, changes=changes, opts=diffopts) fp = cStringIO.StringIO() fp.write(''.join(chunks)) fp.seek(0) # 1. filter patch, so we have intending-to apply subset of it chunks = filterpatch(ui, parsepatch(fp)) del fp contenders = set() for h in chunks: try: contenders.update(set(h.files())) except AttributeError: pass changed = changes[0] + changes[1] + changes[2] newfiles = [f for f in changed if f in contenders] if not newfiles: ui.status(_('no changes to record\n')) return 0 modified = set(changes[0]) # 2. backup changed files, so we can restore them in the end backups = {} backupdir = repo.join('record-backups') try: os.mkdir(backupdir) except OSError, err: if err.errno != errno.EEXIST: raise try: # backup continues for f in newfiles: if f not in modified: continue fd, tmpname = tempfile.mkstemp(prefix=f.replace('/', '_')+'.', dir=backupdir) os.close(fd) ui.debug(_('backup %r as %r\n') % (f, tmpname)) util.copyfile(repo.wjoin(f), tmpname) backups[f] = tmpname fp = cStringIO.StringIO() for c in chunks: if c.filename() in backups: c.write(fp) dopatch = fp.tell() fp.seek(0) # 3a. apply filtered patch to clean repo (clean) if backups: hg.revert(repo, repo.dirstate.parents()[0], backups.has_key) # 3b. (apply) if dopatch: try: ui.debug(_('applying patch\n')) ui.debug(fp.getvalue()) pfiles = {} patch.internalpatch(fp, ui, 1, repo.root, files=pfiles, eolmode=None) patch.updatedir(ui, repo, pfiles) except patch.PatchError, err: s = str(err) if s: raise util.Abort(s) else: raise util.Abort(_('patch failed to apply')) del fp # 4. We prepared working directory according to filtered patch. # Now is the time to delegate the job to commit/qrefresh or the like!