copies: rewrite copy detection for non-merge users
The existing copy detection API was designed with merge in mind and
was ill-suited for doing status/diff. The new pathcopies
implementation gives more accurate, easier to use results for
comparing two revisions, and is much simpler to understand.
Test notes:
- test-mv-cp-st.t results finds more renames in the reverse direction now
- test-mq-merge.t was always wrong and duplicated a copy in diff that
was already present in one of the parent revisions
import os
from mercurial import ui, commands, extensions
ignore = set(['highlight', 'inotify', 'win32text'])
if os.name != 'nt':
ignore.add('win32mbcs')
disabled = [ext for ext in extensions.disabled().keys() if ext not in ignore]
hgrc = open(os.environ["HGRCPATH"], 'w')
hgrc.write('[extensions]\n')
for ext in disabled:
hgrc.write(ext + '=\n')
hgrc.close()
u = ui.ui()
extensions.loadall(u)
globalshort = set()
globallong = set()
for option in commands.globalopts:
option[0] and globalshort.add(option[0])
option[1] and globallong.add(option[1])
for cmd, entry in commands.table.iteritems():
seenshort = globalshort.copy()
seenlong = globallong.copy()
for option in entry[1]:
if (option[0] and option[0] in seenshort) or \
(option[1] and option[1] in seenlong):
print "command '" + cmd + "' has duplicate option " + str(option)
seenshort.add(option[0])
seenlong.add(option[1])