comparison mercurial/filemerge.py @ 21519:25d5a9ecbb85

merge: add conflict marker formatter (BC)

Adds a conflict marker formatter that can produce custom conflict marker
descriptions. It can be set via ui.mergemarkertemplate. The old behavior
can be used still by setting ui.mergemarkers=basic.

The default format is similar to:

  {node|short} {tag} {branch} {bookmarks} - {author}: "{desc|firstline}"

And renders as:

  contextblahblah
  <<<<<<< local: c7fdd7ce4652 - durham: "Fix broken stuff in my feature branch"
  line from my changes
  =======
  line from the other changes
  >>>>>>> other: a3e55d7f4d38  master - sid0: "This is a commit to master th...
  morecontextblahblah

21518:8e8049b9bda4

# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from node import short
from i18n import _
import util, simplemerge, match, error
import os, tempfile, re, filecmp

def _toolstr(ui, tool, part, default=""):
    return ui.config("merge-tools", tool + "." + part, default)

        r = util.system(toolpath + ' ' + args, cwd=repo.root, environ=env,
                        out=ui.fout)
        return True, r
    return False, 0

def filemerge(repo, mynode, orig, fcd, fco, fca):
    """perform a 3-way merge in the working directory

    mynode = parent node before merge
    orig = original local filename before merge

    else:
        ui.status(_("merging %s\n") % fd)

    ui.debug("my %s other %s ancestor %s\n" % (fcd, fco, fca))

    labels = ['local', 'other']
    needcheck, r = func(repo, mynode, orig, fcd, fco, fca, toolconf,
                        (a, b, c, back), labels=labels)
    if not needcheck:
        if r:
            if onfailure:
                ui.warn(onfailure % fd)
        else:

21519:25d5a9ecbb85

# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from node import short
from i18n import _
import util, simplemerge, match, error, templater, templatekw
import os, tempfile, re, filecmp

def _toolstr(ui, tool, part, default=""):
    return ui.config("merge-tools", tool + "." + part, default)

        r = util.system(toolpath + ' ' + args, cwd=repo.root, environ=env,
                        out=ui.fout)
        return True, r
    return False, 0

def _formatconflictmarker(repo, ctx, template, label, pad):
    """Applies the given template to the ctx, prefixed by the label.

    Pad is the minimum width of the label prefix, so that multiple markers
    can have aligned templated parts.
    """
    if ctx.node() is None:
        ctx = ctx.p1()

    props = templatekw.keywords.copy()
    props['templ'] = template
    props['ctx'] = ctx
    props['repo'] = repo
    templateresult = template('conflictmarker', **props)

    label = ('%s:' % label).ljust(pad + 1)
    mark = '%s %s' % (label, templater.stringify(templateresult))

    # The <<< marks add 8 to the length, and '...' adds three, so max
    # length of the actual marker is 69.
    maxlength = 80 - 8 - 3
    if len(mark) > maxlength:
        mark = mark[:maxlength] + '...'
    return mark

_defaultconflictmarker = ('{node|short} ' +
    '{ifeq(tags, "tip", "", "{tags} ")}' +
    '{if(bookmarks, "{bookmarks} ")}' +
    '{ifeq(branch, "default", "", "{branch} ")}' +
    '- {author|user}: "{desc|firstline}"')

def _formatlabels(repo, fcd, fco, labels):
    """Formats the given labels using the conflict marker template.

    Returns a list of formatted labels.
    """
    cd = fcd.changectx()
    co = fco.changectx()

    ui = repo.ui
    template = ui.config('ui', 'mergemarkertemplate', _defaultconflictmarker)
    template = templater.parsestring(template, quoted=False)
    tmpl = templater.templater(None, cache={ 'conflictmarker' : template })

    pad = max(len(labels[0]), len(labels[1]))

    return [_formatconflictmarker(repo, cd, tmpl, labels[0], pad),
            _formatconflictmarker(repo, co, tmpl, labels[1], pad)]

def filemerge(repo, mynode, orig, fcd, fco, fca):
    """perform a 3-way merge in the working directory

    mynode = parent node before merge
    orig = original local filename before merge

    else:
        ui.status(_("merging %s\n") % fd)

    ui.debug("my %s other %s ancestor %s\n" % (fcd, fco, fca))

    markerstyle = ui.config('ui', 'mergemarkers', 'detailed')
    labels = ['local', 'other']
    if markerstyle == 'basic':
        formattedlabels = labels
    else:
        formattedlabels = _formatlabels(repo, fcd, fco, labels)

    needcheck, r = func(repo, mynode, orig, fcd, fco, fca, toolconf,
                        (a, b, c, back), labels=formattedlabels)
    if not needcheck:
        if r:
            if onfailure:
                ui.warn(onfailure % fd)
        else: