comparison mercurial/patch.py @ 24269:9a745ced79a9

record: move filterpatch from record to patch

Part of a series of patches to move record from hgext to core

24268:cf7d252d8c30

# Copyright 2007 Chris Mason <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

import cStringIO, email, os, errno, re, posixpath
import tempfile, zlib, shutil
# On python2.4 you have to import these by name or they fail to
# load. This was not a problem on Python 2.7.
import email.Generator
import email.Parser

        return self.header.filename()

    def __repr__(self):
        return '<hunk %r@%d>' % (self.filename(), self.fromline)

class hunk(object):
    def __init__(self, desc, num, lr, context):
        self.number = num
        self.desc = desc
        self.hunk = [desc]

24269:9a745ced79a9

# Copyright 2007 Chris Mason <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

import cStringIO, email, os, errno, re, posixpath, copy
import tempfile, zlib, shutil
# On python2.4 you have to import these by name or they fail to
# load. This was not a problem on Python 2.7.
import email.Generator
import email.Parser

        return self.header.filename()

    def __repr__(self):
        return '<hunk %r@%d>' % (self.filename(), self.fromline)

def filterpatch(ui, headers):
    """Interactively filter patch chunks into applied-only chunks"""

    def prompt(skipfile, skipall, query, chunk):
        """prompt query, and process base inputs

        - y/n for the rest of file
        - y/n for the rest
        - ? (help)
        - q (quit)

        Return True/False and possibly updated skipfile and skipall.
        """
        newpatches = None
        if skipall is not None:
            return skipall, skipfile, skipall, newpatches
        if skipfile is not None:
            return skipfile, skipfile, skipall, newpatches
        while True:
            resps = _('[Ynesfdaq?]'
                      '$$ &Yes, record this change'
                      '$$ &No, skip this change'
                      '$$ &Edit this change manually'
                      '$$ &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'
                      '$$ &? (display help)')
            r = ui.promptchoice("%s %s" % (query, resps))
            ui.write("\n")
            if r == 8: # ?
                for c, t in ui.extractchoices(resps)[1]:
                    ui.write('%s - %s\n' % (c, t.lower()))
                continue
            elif r == 0: # yes
                ret = True
            elif r == 1: # no
                ret = False
            elif r == 2: # Edit patch
                if chunk is None:
                    ui.write(_('cannot edit patch for whole file'))
                    ui.write("\n")
                    continue
                if chunk.header.binary():
                    ui.write(_('cannot edit patch for binary file'))
                    ui.write("\n")
                    continue
                # Patch comment based on the Git one (based on comment at end of
                # http://mercurial.selenic.com/wiki/RecordExtension)
                phelp = '---' + _("""
To remove '-' lines, make them ' ' lines (context).
To remove '+' lines, delete them.
Lines starting with # will be removed from the patch.

If the patch applies cleanly, the edited hunk will immediately be
added to the record list. If it does not apply cleanly, a rejects
file will be generated: you can use that when you try again. If
all lines of the hunk are removed, then the edit is aborted and
the hunk is left unchanged.
""")
                (patchfd, patchfn) = tempfile.mkstemp(prefix="hg-editor-",
                        suffix=".diff", text=True)
                ncpatchfp = None
                try:
                    # Write the initial patch
                    f = os.fdopen(patchfd, "w")
                    chunk.header.write(f)
                    chunk.write(f)
                    f.write('\n'.join(['# ' + i for i in phelp.splitlines()]))
                    f.close()
                    # Start the editor and wait for it to complete
                    editor = ui.geteditor()
                    ui.system("%s \"%s\"" % (editor, patchfn),
                              environ={'HGUSER': ui.username()},
                              onerr=util.Abort, errprefix=_("edit failed"))
                    # Remove comment lines
                    patchfp = open(patchfn)
                    ncpatchfp = cStringIO.StringIO()
                    for line in patchfp:
                        if not line.startswith('#'):
                            ncpatchfp.write(line)
                    patchfp.close()
                    ncpatchfp.seek(0)
                    newpatches = parsepatch(ncpatchfp)
                finally:
                    os.unlink(patchfn)
                    del ncpatchfp
                # Signal that the chunk shouldn't be applied as-is, but
                # provide the new patch to be used instead.
                ret = False
            elif r == 3: # Skip
                ret = skipfile = False
            elif r == 4: # file (Record remaining)
                ret = skipfile = True
            elif r == 5: # done, skip remaining
                ret = skipall = False
            elif r == 6: # all
                ret = skipall = True
            elif r == 7: # quit
                raise util.Abort(_('user quit'))
            return ret, skipfile, skipall, newpatches

    seen = set()
    applied = {}        # 'filename' -> [] of chunks
    skipfile, skipall = None, None
    pos, total = 1, sum(len(h.hunks) for h in headers)
    for h in headers:
        pos += len(h.hunks)
        skipfile = None
        fixoffset = 0
        hdr = ''.join(h.header)
        if hdr in seen:
            continue
        seen.add(hdr)
        if skipall is None:
            h.pretty(ui)
        msg = (_('examine changes to %s?') %
               _(' and ').join("'%s'" % f for f in h.files()))
        r, skipfile, skipall, np = prompt(skipfile, skipall, msg, None)
        if not r:
            continue
        applied[h.filename()] = [h]
        if h.allhunks():
            applied[h.filename()] += h.hunks
            continue
        for i, chunk in enumerate(h.hunks):
            if skipfile is None and skipall is None:
                chunk.pretty(ui)
            if total == 1:
                msg = _("record this change to '%s'?") % chunk.filename()
            else:
                idx = pos - len(h.hunks) + i
                msg = _("record change %d/%d to '%s'?") % (idx, total,
                                                           chunk.filename())
            r, skipfile, skipall, newpatches = prompt(skipfile,
                    skipall, msg, chunk)
            if r:
                if fixoffset:
                    chunk = copy.copy(chunk)
                    chunk.toline += fixoffset
                applied[chunk.filename()].append(chunk)
            elif newpatches is not None:
                for newpatch in newpatches:
                    for newhunk in newpatch.hunks:
                        if fixoffset:
                            newhunk.toline += fixoffset
                        applied[newhunk.filename()].append(newhunk)
            else:
                fixoffset += chunk.removed - chunk.added
    return sum([h for h in applied.itervalues()
               if h[0].special() or len(h) > 1], [])
class hunk(object):
    def __init__(self, desc, num, lr, context):
        self.number = num
        self.desc = desc
        self.hunk = [desc]