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'''
====================================================================
Copyright (c) 2003-2007 Barry A Scott. All rights reserved.
This software is licensed as described in the file LICENSE.txt,
which you should have received as part of this distribution.
====================================================================
wb_subversion_diff.py
'''
import sys
import os
import tempfile
import pysvn
import wb_shell_commands
import wb_show_diff_frame
import wb_read_file
import wb_diff_frame
debug_diff = False
#
# Hold the information about each path to be compared
#
class PathInfoForDiff:
def __init__( self ):
# peg_path and peg_revision of the starting point for this path
self.peg_path = None
self.peg_revision = None
# path and revision to be compared found starting the peg
self.path = None
self.revision = None
# title for the diff program
self.title = None
def copy( self ):
path_info = PathInfoForDiff()
path_info.peg_path = self.peg_path
path_info.peg_revision = self.peg_revision
path_info.path = self.path
path_info.revision = self.revision
path_info.title = self.title
return path_info
def pegIsEqual( self, path_info ):
# is either is has None in the peg fields
# say it does not match
if( self.peg_revision is None
or self.peg_path is None ):
return False
if( path_info.peg_revision is None
or path_info.peg_path is None ):
return False
return (self.peg_path == path_info.peg_path
and self.peg_revision == path_info.peg_revision)
def printDescription( self, title ):
print '%s PathInfoForDiff' % title
print ' peg_path: %r' % self.peg_path
print ' peg_revision: %r' % self.peg_revision
print ' path: %r' % self.path
print ' revision: %r' % self.revision
print ' title: %r' % self.title
#
# Diff two files using the mode selected by the user
#
# The files can be on disk or at any revision
#
def subversionDiffFiles(
app,
project_info,
old_path_info,
new_path_info ):
# if revision is None cannot ask svn for the contents
mode = app.prefs.getDiffTool().diff_tool_mode
app.log.debug( 'subversionDiffFiles: mode %r' % mode )
# svn diff only works on versioned files
if mode == 'svn-diff' and (old_path_info.revision is None or new_path_info.revision is None):
mode = 'built-in'
# Check for possible errors in advance to give the user a clear message.
for path_info in (old_path_info, new_path_info):
if( path_info.revision is None
or path_info.revision.kind == pysvn.opt_revision_kind.working ):
if not os.path.exists( path_info.path ):
app.log_error( '"%s" does not exist.' % path_info.path )
fd, path_info.path = tempfile.mkstemp( suffix=os.path.basename( path_info.path ) )
os.close( fd )
# keep track of the temp file
app.all_temp_files.append( path_info.path )
if os.path.isdir( path_info.path ):
app.log_error( '"%s" refers to a directory.' % path_info.path )
return
if not os.access( path_info.path, os.R_OK ):
app.log_error( '"%s" cannot be read.' % path_info.path )
return
if mode == 'svn-diff':
# svn will do all the work
yield app.backgroundProcess
diff_text = project_info.client_bg.diff(
tempfile.gettempdir(),
old_path_info.path, old_path_info.revision,
new_path_info.path, new_path_info.revision )
yield app.foregroundProcess
showDiffText( app, diff_text, old_path_info.title, new_path_info.title )
elif mode == 'external-gui-diff':
yield app.backgroundProcess
ok = False
try:
old_temp_filename = __getLocalFilename( app, project_info, old_path_info )
new_temp_filename = __getLocalFilename( app, project_info, new_path_info )
ok = True
except IOError, e:
app.log_error( e )
yield app.foregroundProcess
if ok:
wb_shell_commands.GuiDiffFiles( app,
__processExternalCommandOptions( app,
app.prefs.getDiffTool().gui_diff_tool_options[:],
old_temp_filename, old_path_info.title,
new_temp_filename, new_path_info.title ) )
elif mode == 'external-shell-diff':
yield app.backgroundProcess
ok = False
try:
old_temp_filename = __getLocalFilename( app, project_info, old_path_info )
new_temp_filename = __getLocalFilename( app, project_info, new_path_info )
diff_text = wb_shell_commands.ShellDiffFiles( app,
__processExternalCommandOptions( app,
app.prefs.getDiffTool().shell_diff_tool_options[:],
old_temp_filename, old_path_info.title,
new_temp_filename, new_path_info.title ) )
ok = True
except IOError, e:
app.log_error( e )
yield app.foregroundProcess
if ok:
showDiffText( app, diff_text, old_path_info.title, new_path_info.title )
else:
ok = False
yield app.backgroundProcess
try:
all_old_lines = __getFileContents( app, project_info, old_path_info )
all_new_lines = __getFileContents( app, project_info, new_path_info )
ok = True
except IOError, e:
app.log_error( e )
yield app.foregroundProcess
# built-in
if ok:
diff_frame = wb_diff_frame.DiffFrame( app, app.frame,
all_old_lines, old_path_info.title, all_new_lines, new_path_info.title )
# only show if the files could be read
if diff_frame.isOk():
diff_frame.showAllFolds( False )
diff_frame.Show( True )
app.all_diff_frames.append( diff_frame )
def subversionDiffDir(
app,
project_info,
old_path_info,
new_path_info ):
# if revision is None cannot ask svn for the contents
mode = app.prefs.getDiffTool().diff_tool_mode
app.log.debug( 'subversionDiffDir: mode %r' % mode )
# svn diff only works on versioned files
if mode == 'svn-diff' and (old_path_info.revision is None or new_path_info.revision is None):
mode = 'built-in'
if mode == 'svn-diff' or True:
# svn will do all the work
yield app.backgroundProcess
if debug_diff:
old_path_info.printDescription( 'old_path_info' )
new_path_info.printDescription( 'new_path_info' )
try:
if old_path_info.pegIsEqual( new_path_info ):
if debug_diff:
print 'diff_peg:'
print ' url_or_path %r' % new_path_info.peg_path
print ' peg_revision %r' % new_path_info.peg_revision
print 'revision_start %r' % old_path_info.revision
print ' revision_end %r' % new_path_info.revision
print ' recurse %r' % True
diff_text = project_info.client_bg.diff_peg(
tmp_path=tempfile.gettempdir(),
url_or_path=new_path_info.peg_path,
peg_revision=new_path_info.peg_revision,
revision_start=old_path_info.revision,
revision_end=new_path_info.revision,
recurse=True )
else:
if debug_diff:
print 'diff:'
print ' url_or_path %r' % old_path_info.path
print ' revision1 %r' % old_path_info.revision
print 'url_or_path2 %r' % new_path_info.path
print ' revision2 %r' % new_path_info.revision
print ' recurse %r' % True
diff_text = project_info.client_bg.diff(
tmp_path=tempfile.gettempdir(),
url_or_path =old_path_info.path,
revision1=old_path_info.revision,
url_or_path2=new_path_info.path,
revision2=new_path_info.revision,
recurse=True )
except pysvn.ClientError, e:
# can get here when there are missing files in the WC
print 'Error: %s' % e.args[0]
return
yield app.foregroundProcess
showDiffText( app, diff_text, old_path_info.title, new_path_info.title )
def __processExternalCommandOptions( app, options, old_filename, old_title, new_filename, new_title ):
# must have the left and right files
if '%nl' not in options:
options = options + ' %nl'
if '%nr' not in options:
options = options + ' %nr'
quote = "'"
if sys.platform == 'win32':
quote = '"'
# quote all replacements
for ui_format, replacement in (('%tl', quote + old_title + quote)
,('%tr', quote + new_title + quote)
,('%nl', quote + old_filename + quote)
,('%nr', quote + new_filename + quote)):
options = options.replace( ui_format, replacement )
return options
#
# throws IOError.
#
def __getFileContents( app, project_info, path_info ):
all_content_lines = ''
try:
if path_info.revision is None or path_info.revision.kind == pysvn.opt_revision_kind.working:
all_content_lines = wb_read_file.readFileContentsAsUnicode( path_info.path ).split('\n')
else:
if path_info.revision.kind == pysvn.opt_revision_kind.base:
all_content_lines = project_info.client_bg.cat(
url_or_path=path_info.path,
revision=path_info.revision )
else:
if path_info.peg_revision is not None:
all_content_lines = project_info.client_bg.cat(
url_or_path=path_info.peg_path,
revision=path_info.revision,
peg_revision=path_info.peg_revision )
else:
all_content_lines = project_info.client_bg.cat(
url_or_path=path_info.path,
revision=path_info.revision )
all_content_lines = wb_read_file.contentsAsUnicode( all_content_lines ).split( '\n' )
except pysvn.ClientError, e:
app.log_client_error( e )
return all_content_lines
#
# throws IOError.
#
def __getLocalFilename( app, project_info, path_info ):
rev_description = ''
all_content = ''
try:
if path_info.revision is None or path_info.revision.kind == pysvn.opt_revision_kind.working:
return path_info.path
elif path_info.revision.kind == pysvn.opt_revision_kind.base:
rev_description = 'BASE'
all_content = project_info.client_bg.cat(
url_or_path=path_info.path,
revision=path_info.revision )
else:
if path_info.revision.kind == pysvn.opt_revision_kind.head:
rev_description = 'HEAD'
else:
rev_description = 'R%d' % path_info.revision.number
if path_info.peg_revision is not None:
all_content = project_info.client_bg.cat(
url_or_path=path_info.peg_path,
peg_revision=path_info.peg_revision,
revision=path_info.revision )
else:
all_content = project_info.client_bg.cat(
url_or_path=path_info.path,
revision=path_info.revision )
except pysvn.ClientError, e:
app.log_client_error( e )
# create a temp file with a name that is based on the original filename
prefix = 'tmp-%s-%s-' % (os.path.basename( path_info.path ), rev_description)
suffix = os.path.splitext( path_info.path )[1]
fd, filename = tempfile.mkstemp( prefix=prefix, suffix=suffix )
os.write( fd, all_content )
os.close( fd )
# keep track of the temp file
app.all_temp_files.append( filename )
# return name to caller
return filename
def showDiffText( app, text, old_title, new_title ):
show_diff_frame = wb_show_diff_frame.ShowDiffFrame( app, text, old_title, new_title )
app.all_diff_frames.append( show_diff_frame )
|
