comparison hgext/extdiff.py @ 5245:a1efa71f3ece

Improve extdiff configuration.
In addition to the old cmd.foo, opts.foo hgrc entries, allow a more simple
alias = command [opts]... form. For example:
[extdiff]
cdiff = colordiff -uprN

5244:79279b5583c6

#
# Copyright 2006 Vadim Gelfer <[e-mail]>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
#
# The `extdiff' Mercurial extension allows you to use external programs
# to compare revisions, or revision with working dir.  The external diff
# programs are called with a configurable set of options and two
# non-option arguments: paths to directories containing snapshots of
# files to compare.
#
# To enable this extension:
#
#   [extensions]
#   hgext.extdiff =
#
# The `extdiff' extension also allows to configure new diff commands, so
# you do not need to type "hg extdiff -p kdiff3" always.
#
#   [extdiff]
#   # add new command that runs GNU diff(1) in 'context diff' mode
#   cmd.cdiff = gdiff
#   opts.cdiff = -Nprc5

#   # add new command called vdiff, runs kdiff3
#   cmd.vdiff = kdiff3

#   # add new command called meld, runs meld (no need to name twice)
#   cmd.meld =

#   # add new command called vimdiff, runs gvimdiff with DirDiff plugin
#   #(see http://www.vim.org/scripts/script.php?script_id=102)
#   # Non english user, be sure to put "let g:DirDiffDynamicDiffText = 1" in
#   # your .vimrc
#   cmd.vimdiff = gvim
#   opts.vimdiff = -f '+next' '+execute "DirDiff" argv(0) argv(1)'
#
# Each custom diff commands can have two parts: a `cmd' and an `opts'
# part.  The cmd.xxx option defines the name of an executable program
# that will be run, and opts.xxx defines a set of command-line options
# which will be inserted to the command between the program name and
# the files/directories to diff (i.e. the cdiff example above).
#
# You can use -I/-X and list of file or directory names like normal
# "hg diff" command.  The `extdiff' extension makes snapshots of only
# needed files, so running the external diff program will actually be
# pretty fast (at least faster than having to compare the entire tree).

from mercurial.i18n import _
from mercurial.node import *
from mercurial import cmdutil, util, commands
import os, shutil, tempfile


def snapshot_node(ui, repo, files, node, tmproot):
    '''snapshot files as of some revision'''
    mf = repo.changectx(node).manifest()
    dirname = os.path.basename(repo.root)

     _('hg extdiff [OPT]... [FILE]...')),
    }

def uisetup(ui):
    for cmd, path in ui.configitems('extdiff'):
        if not cmd.startswith('cmd.'): continue
        cmd = cmd[4:]
        if not path: path = cmd
        diffopts = ui.config('extdiff', 'opts.' + cmd, '')
        diffopts = diffopts and [diffopts] or []
        def save(cmd, path, diffopts):
            '''use closure to save diff command to use'''
            def mydiff(ui, repo, *pats, **opts):
                return dodiff(ui, repo, path, diffopts, pats, opts)
            mydiff.__doc__ = '''use %(path)r to diff repository (or selected files)

5245:a1efa71f3ece

#
# Copyright 2006 Vadim Gelfer <[e-mail]>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

'''
The `extdiff' Mercurial extension allows you to use external programs
to compare revisions, or revision with working dir.  The external diff
programs are called with a configurable set of options and two
non-option arguments: paths to directories containing snapshots of
files to compare.

To enable this extension:

  [extensions]
  hgext.extdiff =

The `extdiff' extension also allows to configure new diff commands, so
you do not need to type "hg extdiff -p kdiff3" always.

  [extdiff]
  # add new command that runs GNU diff(1) in 'context diff' mode
  cdiff = gdiff -Nprc5
  ## or the old way:
  #cmd.cdiff = gdiff
  #opts.cdiff = -Nprc5

  # add new command called vdiff, runs kdiff3
  vdiff = kdiff3

  # add new command called meld, runs meld (no need to name twice)
  meld =

  # add new command called vimdiff, runs gvimdiff with DirDiff plugin
  #(see http://www.vim.org/scripts/script.php?script_id=102)
  # Non english user, be sure to put "let g:DirDiffDynamicDiffText = 1" in
  # your .vimrc
  vimdiff = gvim -f '+next' '+execute "DirDiff" argv(0) argv(1)'

You can use -I/-X and list of file or directory names like normal
"hg diff" command.  The `extdiff' extension makes snapshots of only
needed files, so running the external diff program will actually be
pretty fast (at least faster than having to compare the entire tree).
'''

from mercurial.i18n import _
from mercurial.node import *
from mercurial import cmdutil, util, commands
import os, shlex, shutil, tempfile

def snapshot_node(ui, repo, files, node, tmproot):
    '''snapshot files as of some revision'''
    mf = repo.changectx(node).manifest()
    dirname = os.path.basename(repo.root)

     _('hg extdiff [OPT]... [FILE]...')),
    }

def uisetup(ui):
    for cmd, path in ui.configitems('extdiff'):
        if cmd.startswith('cmd.'):
            cmd = cmd[4:]
            if not path: path = cmd
            diffopts = ui.config('extdiff', 'opts.' + cmd, '')
            diffopts = diffopts and [diffopts] or []
        elif cmd.startswith('opts.'):
            continue
        else:
            # command = path opts
            if path:
                diffopts = shlex.split(path)
                path = diffopts.pop(0)
            else:
                path, diffopts = cmd, []
        def save(cmd, path, diffopts):
            '''use closure to save diff command to use'''
            def mydiff(ui, repo, *pats, **opts):
                return dodiff(ui, repo, path, diffopts, pats, opts)
            mydiff.__doc__ = '''use %(path)r to diff repository (or selected files)