drawdag: don't crash when writing copy info to changesets
When writing copies to the changeset, localrepo.commitctx() will call
ctx.p1copies() and ctx.p2copies(). These crashed on simplecommitctx
because they ended up trying to access the manifest. drawdag doesn't
support copies at all, so we can simply override the methods to return
empty dicts.
Differential Revision: https://phab.mercurial-scm.org/D6565
$ cat > echo.py <<EOF
> #!$PYTHON
> from __future__ import absolute_import, print_function
> import os
> import sys
> try:
> import msvcrt
> msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
> msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
> except ImportError:
> pass
>
> for k in ('HG_FILE', 'HG_MY_ISLINK', 'HG_OTHER_ISLINK', 'HG_BASE_ISLINK'):
> print(k, os.environ[k])
> EOF
Create 2 heads containing the same file, once as
a file, once as a link. Bundle was generated with:
# hg init t
# cd t
# echo a > a
# hg ci -qAm t0 -d '0 0'
# echo l > l
# hg ci -qAm t1 -d '1 0'
# hg up -C 0
# ln -s a l
# hg ci -qAm t2 -d '2 0'
# echo l2 > l2
# hg ci -qAm t3 -d '3 0'
$ hg init t
$ cd t
$ hg -q unbundle "$TESTDIR/bundles/test-merge-symlinks.hg"
$ hg up -C 3
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
Merge them and display *_ISLINK vars
merge heads
$ hg merge --tool="\"$PYTHON\" ../echo.py"
merging l
HG_FILE l
HG_MY_ISLINK 1
HG_OTHER_ISLINK 0
HG_BASE_ISLINK 0
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
Test working directory symlink bit calculation wrt copies,
especially on non-supporting systems.
merge working directory
$ hg up -C 2
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg copy l l2
$ HGMERGE="\"$PYTHON\" ../echo.py" hg up 3
merging l2
HG_FILE l2
HG_MY_ISLINK 1
HG_OTHER_ISLINK 0
HG_BASE_ISLINK 0
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
$ cd ..