tests: check `pulled-delta-reuse-policy=forced` without general delta
If general delta is not available, the amount of delta we can reuse at all will
be more limited. We check that application still work and does not corrupt the
repository.
#!/usr/bin/env python3
import getopt
import sys
import hgdemandimport
hgdemandimport.enable()
from mercurial.i18n import _
from mercurial import (
context,
error,
fancyopts,
simplemerge,
ui as uimod,
util,
)
from mercurial.utils import procutil, stringutil
options = [
(b'L', b'label', [], _(b'labels to use on conflict markers')),
(b'a', b'text', None, _(b'treat all files as text')),
(b'p', b'print', None, _(b'print results instead of overwriting LOCAL')),
(b'', b'no-minimal', None, _(b'no effect (DEPRECATED)')),
(b'h', b'help', None, _(b'display help and exit')),
(b'q', b'quiet', None, _(b'suppress output')),
]
usage = _(
b'''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():
procutil.stdout.write(usage)
procutil.stdout.write(b'\noptions:\n')
out_opts = []
for shortopt, longopt, default, desc in options:
out_opts.append(
(
b'%2s%s'
% (
shortopt and b'-%s' % shortopt,
longopt and b' --%s' % longopt,
),
b'%s' % desc,
)
)
opts_len = max([len(opt[0]) for opt in out_opts])
for first, second in out_opts:
procutil.stdout.write(b' %-*s %s\n' % (opts_len, first, second))
def _verifytext(input, ui, quiet=False, allow_binary=False):
"""verifies that text is non-binary (unless opts[text] is passed,
then we just warn)"""
if stringutil.binary(input.text()):
msg = _(b"%s looks like a binary file.") % input.fctx.path()
if not quiet:
ui.warn(_(b'warning: %s\n') % msg)
if not allow_binary:
sys.exit(1)
try:
for fp in (sys.stdin, procutil.stdout, sys.stderr):
procutil.setbinary(fp)
opts = {}
try:
bargv = [a.encode('utf8') for a in sys.argv[1:]]
args = fancyopts.fancyopts(bargv, options, opts)
except getopt.GetoptError as e:
raise ParseError(e)
if opts[b'help']:
showhelp()
sys.exit(0)
if len(args) != 3:
raise ParseError(_(b'wrong number of arguments').decode('utf8'))
mode = b'merge'
if len(opts[b'label']) > 2:
mode = b'merge3'
local, base, other = args
overrides = opts[b'label']
if len(overrides) > 3:
raise error.InputError(b'can only specify three labels.')
labels = [local, other, base]
labels[: len(overrides)] = overrides
local_input = simplemerge.MergeInput(
context.arbitraryfilectx(local), labels[0]
)
other_input = simplemerge.MergeInput(
context.arbitraryfilectx(other), labels[1]
)
base_input = simplemerge.MergeInput(
context.arbitraryfilectx(base), labels[2]
)
quiet = opts.get(b'quiet')
allow_binary = opts.get(b'text')
ui = uimod.ui.load()
_verifytext(local_input, ui, quiet=quiet, allow_binary=allow_binary)
_verifytext(base_input, ui, quiet=quiet, allow_binary=allow_binary)
_verifytext(other_input, ui, quiet=quiet, allow_binary=allow_binary)
merged_text, conflicts = simplemerge.simplemerge(
local_input,
base_input,
other_input,
mode,
allow_binary=allow_binary,
)
if opts.get(b'print'):
ui.fout.write(merged_text)
else:
util.writefile(local, merged_text)
sys.exit(1 if conflicts else 0)
except ParseError as e:
e = stringutil.forcebytestr(e)
procutil.stdout.write(b"%s: %s\n" % (sys.argv[0].encode('utf8'), e))
showhelp()
sys.exit(1)
except error.Abort as e:
procutil.stderr.write(b"abort: %s\n" % e)
sys.exit(255)
except KeyboardInterrupt:
sys.exit(255)