view tests/failfilemerge.py @ 35659:821d8a5ab4ff

match: do not weirdly include explicit files excluded by -X option

Actually, this was the original behavior. Before a83a7d27911e, "log" and
"files" showed nothing if "FILE -X FILE" was specified, whereas "debugwalk"
got confused by an explicit FILE pattern. Under the hood, "log" and "files"
use m() and ctx.matches(m) respectively, and "debugwalk" uses ctx.walk(m).
I suspect dirstate.walk() goes wrong in _walkexplicit(), which seems to
blindly trust m.files().

I reckon the original "log"/"files" behavior is correct, and drop the hack
from the differencematcher.

# extension to emulate interrupting filemerge._filemerge

from __future__ import absolute_import

from mercurial import (
    error,
    extensions,
    filemerge,
)

def failfilemerge(filemergefn,
                  premerge, repo, wctx, mynode, orig, fcd, fco, fca,
                  labels=None):
    raise error.Abort("^C")
    return filemergefn(premerge, repo, mynode, orig, fcd, fco, fca, labels)

def extsetup(ui):
    extensions.wrapfunction(filemerge, '_filemerge',
                            failfilemerge)