graphmod: allow edges to end early
Rather than draw an edge all the way to the bottom of the graph, make it
possible to end an edge to parents that are not part of the graph early on.
This results in a far cleaner graph.
Any edge type can be set to end early; set the ui.graphstyle.<edgetype>
parameter to the empty string to enable this.
For example, setting the following configuration:
[ui]
graphstyle.grandparent = :
graphstyle.missing =
would result in a graph like this:
o changeset: 32:
d06dffa21a31
|\ parent: 27:
886ed638191b
| : parent: 31:
621d83e11f67
| :
o : changeset: 31:
621d83e11f67
|\: parent: 21:
d42a756af44d
| : parent: 30:
6e11cd4b648f
| :
o : changeset: 30:
6e11cd4b648f
|\ \ parent: 28:
44ecd0b9ae99
| ~ : parent: 29:
cd9bb2be7593
| /
o : changeset: 28:
44ecd0b9ae99
|\ \ parent: 1:
6db2ef61d156
| ~ : parent: 26:
7f25b6c2f0b9
| /
o : changeset: 26:
7f25b6c2f0b9
|\ \ parent: 18:
1aa84d96232a
| | : parent: 25:
91da8ed57247
| | :
| o : changeset: 25:
91da8ed57247
| |\: parent: 21:
d42a756af44d
| | : parent: 24:
a9c19a3d96b7
| | :
| o : changeset: 24:
a9c19a3d96b7
| |\ \ parent: 0:
e6eb3150255d
| | ~ : parent: 23:
a01cddf0766d
| | /
| o : changeset: 23:
a01cddf0766d
| |\ \ parent: 1:
6db2ef61d156
| | ~ : parent: 22:
e0d9cccacb5d
| | /
| o : changeset: 22:
e0d9cccacb5d
|/:/ parent: 18:
1aa84d96232a
| : parent: 21:
d42a756af44d
| :
| o changeset: 21:
d42a756af44d
| |\ parent: 19:
31ddc2c1573b
| | | parent: 20:
d30ed6450e32
| | |
+---o changeset: 20:
d30ed6450e32
| | | parent: 0:
e6eb3150255d
| | ~ parent: 18:
1aa84d96232a
| |
| o changeset: 19:
31ddc2c1573b
| |\ parent: 15:
1dda3f72782d
| ~ ~ parent: 17:
44765d7c06e0
|
o changeset: 18:
1aa84d96232a
parent: 1:
6db2ef61d156
parent: 15:
1dda3f72782d
The default configuration leaves all 3 types set to |.
This is part of the work towards moving smartlog upstream; currently smartlog
injects extra nodes into the graph to indicate grandparent relationships (nodes
elided).
#!/usr/bin/env python
from mercurial import demandimport
demandimport.enable()
import sys
from mercurial.i18n import _
from mercurial import error, simplemerge, fancyopts, util, ui
options = [('L', 'label', [], _('labels to use on conflict markers')),
('a', 'text', None, _('treat all files as text')),
('p', 'print', None,
_('print results instead of overwriting LOCAL')),
('', 'no-minimal', None, _('no effect (DEPRECATED)')),
('h', 'help', None, _('display help and exit')),
('q', 'quiet', None, _('suppress output'))]
usage = _('''simplemerge [OPTS] LOCAL BASE OTHER
Simple three-way file merge utility with a minimal feature set.
Apply to LOCAL the changes necessary to go from BASE to OTHER.
By default, LOCAL is overwritten with the results of this operation.
''')
class ParseError(Exception):
"""Exception raised on errors in parsing the command line."""
def showhelp():
sys.stdout.write(usage)
sys.stdout.write('\noptions:\n')
out_opts = []
for shortopt, longopt, default, desc in options:
out_opts.append(('%2s%s' % (shortopt and '-%s' % shortopt,
longopt and ' --%s' % longopt),
'%s' % desc))
opts_len = max([len(opt[0]) for opt in out_opts])
for first, second in out_opts:
sys.stdout.write(' %-*s %s\n' % (opts_len, first, second))
try:
for fp in (sys.stdin, sys.stdout, sys.stderr):
util.setbinary(fp)
opts = {}
try:
args = fancyopts.fancyopts(sys.argv[1:], options, opts)
except fancyopts.getopt.GetoptError as e:
raise ParseError(e)
if opts['help']:
showhelp()
sys.exit(0)
if len(args) != 3:
raise ParseError(_('wrong number of arguments'))
sys.exit(simplemerge.simplemerge(ui.ui(), *args, **opts))
except ParseError as e:
sys.stdout.write("%s: %s\n" % (sys.argv[0], e))
showhelp()
sys.exit(1)
except error.Abort as e:
sys.stderr.write("abort: %s\n" % e)
sys.exit(255)
except KeyboardInterrupt:
sys.exit(255)