merge: forcefully mark files that we get from the second parent as dirty
After a hg merge, we want to include in the commit all the files that we
got from the second parent, so that we have the correct file-level
history. To make them visible to hg commit, we try to mark them as dirty.
Unfortunately, right now we can't really mark them as dirty[1] - the
best we can do is to mark them as needing a full comparison of their
contents, but they will still be considered clean if they happen to be
identical to the version in the first parent.
This changeset extends the dirstate format in a compatible way, so that
we can mark a file as dirty:
Right now we use a negative file size to indicate we don't have valid
stat data for this entry. In practice, this size is always -1.
This patch uses -2 to indicate that the entry is dirty. Older versions
of hg won't choke on this dirstate, but they may happily mark the file
as clean after a full comparison, destroying all of our hard work.
The patch adds a dirstate.normallookup method with the semantics of the
current normaldirty, and changes normaldirty to forcefully mark the
entry as dirty.
This should fix issue522.
[1] - well, we could put them in state 'm', but that state has a
different meaning.
#!/bin/sh
hg init
mkdir d1 d1/d11 d2
echo d1/a > d1/a
echo d1/ba > d1/ba
echo d1/a1 > d1/d11/a1
echo d1/b > d1/b
echo d2/b > d2/b
hg add d1/a d1/b d1/ba d1/d11/a1 d2/b
hg commit -m "1" -d "1000000 0"
echo "# rename a single file"
hg rename d1/d11/a1 d2/c
hg status -C
hg update -C
echo "# rename --after a single file"
mv d1/d11/a1 d2/c
hg rename --after d1/d11/a1 d2/c
hg status -C
hg update -C
echo "# move a single file to an existing directory"
hg rename d1/d11/a1 d2
hg status -C
hg update -C
echo "# move --after a single file to an existing directory"
mv d1/d11/a1 d2
hg rename --after d1/d11/a1 d2
hg status -C
hg update -C
echo "# rename a file using a relative path"
(cd d1/d11; hg rename ../../d2/b e)
hg status -C
hg update -C
echo "# rename --after a file using a relative path"
(cd d1/d11; mv ../../d2/b e; hg rename --after ../../d2/b e)
hg status -C
hg update -C
echo "# rename directory d1 as d3"
hg rename d1/ d3
hg status -C
hg update -C
echo "# rename --after directory d1 as d3"
mv d1 d3
hg rename --after d1 d3
hg status -C
hg update -C
echo "# move a directory using a relative path"
(cd d2; mkdir d3; hg rename ../d1/d11 d3)
hg status -C
hg update -C
echo "# move --after a directory using a relative path"
(cd d2; mkdir d3; mv ../d1/d11 d3; hg rename --after ../d1/d11 d3)
hg status -C
hg update -C
echo "# move directory d1/d11 to an existing directory d2 (removes empty d1)"
hg rename d1/d11/ d2
hg status -C
hg update -C
echo "# move directories d1 and d2 to a new directory d3"
mkdir d3
hg rename d1 d2 d3
hg status -C
hg update -C
echo "# move --after directories d1 and d2 to a new directory d3"
mkdir d3
mv d1 d2 d3
hg rename --after d1 d2 d3
hg status -C
hg update -C
echo "# move everything under directory d1 to existing directory d2, do not"
echo "# overwrite existing files (d2/b)"
hg rename d1/* d2
hg status -C
diff d1/b d2/b
hg update -C
echo "# attempt to move potentially more than one file into a non-existent"
echo "# directory"
hg rename 'glob:d1/**' dx
echo "# move every file under d1 to d2/d21 (glob)"
mkdir d2/d21
hg rename 'glob:d1/**' d2/d21
hg status -C
hg update -C
echo "# move --after some files under d1 to d2/d21 (glob)"
mkdir d2/d21
mv d1/a d1/d11/a1 d2/d21
hg rename --after 'glob:d1/**' d2/d21
hg status -C
hg update -C
echo "# move every file under d1 starting with an 'a' to d2/d21 (regexp)"
mkdir d2/d21
hg rename 're:d1/([^a][^/]*/)*a.*' d2/d21
hg status -C
hg update -C
echo "# attempt to overwrite an existing file"
echo "ca" > d1/ca
hg rename d1/ba d1/ca
hg status -C
hg update -C
echo "# forced overwrite of an existing file"
echo "ca" > d1/ca
hg rename --force d1/ba d1/ca
hg status -C
hg update -C
echo "# replace a symlink with a file"
ln -s ba d1/ca
hg rename --force d1/ba d1/ca
hg status -C
hg update -C
echo "# do not copy more than one source file to the same destination file"
mkdir d3
hg rename d1/* d2/* d3
hg status -C
hg update -C
echo "# move a whole subtree with \"hg rename .\""
mkdir d3
(cd d1; hg rename . ../d3)
hg status -C
hg update -C
echo "# move a whole subtree with \"hg rename --after .\""
mkdir d3
mv d1/* d3
(cd d1; hg rename --after . ../d3)
hg status -C
hg update -C
echo "# move the parent tree with \"hg rename ..\""
(cd d1/d11; hg rename .. ../../d3)
hg status -C
hg update -C
echo "# skip removed files"
hg remove d1/b
hg rename d1 d3
hg status -C
hg update -C
echo "# transitive rename"
hg rename d1/b d1/bb
hg rename d1/bb d1/bc
hg status -C
hg update -C
echo "# transitive rename --after"
hg rename d1/b d1/bb
mv d1/bb d1/bc
hg rename --after d1/bb d1/bc
hg status -C
hg update -C
echo "# idempotent renames (d1/b -> d1/bb followed by d1/bb -> d1/b)"
hg rename d1/b d1/bb
echo "some stuff added to d1/bb" >> d1/bb
hg rename d1/bb d1/b
hg status -C
hg update -C
echo "# check illegal path components"
hg rename d1/d11/a1 .hg/foo
hg status -C
hg rename d1/d11/a1 ../foo
hg status -C
mv d1/d11/a1 .hg/foo
hg rename --after d1/d11/a1 .hg/foo
hg status -C
hg update -C
rm .hg/foo
hg rename d1/d11/a1 .hg
hg status -C
hg rename d1/d11/a1 ..
hg status -C
mv d1/d11/a1 .hg
hg rename --after d1/d11/a1 .hg
hg status -C
hg update -C
rm .hg/a1
(cd d1/d11; hg rename ../../d2/b ../../.hg/foo)
hg status -C
(cd d1/d11; hg rename ../../d2/b ../../../foo)
hg status -C