[PATCH] Merging identical changes from another branch
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[PATCH] Merging identical changes from another branch
From: Michael A Fetterman <Michael.Fetterman@cl.cam.ac.uk>
The issue comes up when a local uncommitted *new* file (i.e. not in the
current manifest) is being merged with an identical file from a branch.
Since the file is not in the current manifest (it's either in the
current "to-be-added" list, or in the "unknown" state), there's no
(local) node from which to create a mergepoint.
manifest hash: 4e64ce654a6473524789a97bbaf8bff61b4343af
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#!/bin/sh -x
cat <<'EOF' > merge
#!/bin/sh
echo merging for `basename $1`
EOF
chmod +x merge
mkdir t
cd t
hg init
echo This is file a1 > a
hg add a
hg commit -t "commit #0" -d "0 0" -u user
echo This is file b1 > b
hg add b
hg commit -t "commit #1" -d "0 0" -u user
hg update 0
echo This is file c1 > c
hg add c
hg commit -t "commit #2" -d "0 0" -u user
echo This is file b1 > b
env HGMERGE=../merge hg update -m 1
# no merges expected
cd ..; /bin/rm -rf t
mkdir t
cd t
hg init
echo This is file a1 > a
hg add a
hg commit -t "commit #0" -d "0 0" -u user
echo This is file b1 > b
hg add b
hg commit -t "commit #1" -d "0 0" -u user
hg update 0
echo This is file c1 > c
hg add c
hg commit -t "commit #2" -d "0 0" -u user
echo This is file b2 > b
env HGMERGE=../merge hg update -m 1
# merge of b expected
cd ..; /bin/rm -rf t
mkdir t
cd t
hg init
echo This is file a1 > a
hg add a
hg commit -t "commit #0" -d "0 0" -u user
echo This is file b1 > b
hg add b
hg commit -t "commit #1" -d "0 0" -u user
echo This is file b22 > b
hg commit -t "commit #2" -d "0 0" -u user
hg update 1
echo This is file c1 > c
hg add c
hg commit -t "commit #3" -d "0 0" -u user
echo This is file b22 > b
env HGMERGE=../merge hg update -m 2
# no merges expected
cd ..; /bin/rm -rf t
mkdir t
cd t
hg init
echo This is file a1 > a
hg add a
hg commit -t "commit #0" -d "0 0" -u user
echo This is file b1 > b
hg add b
hg commit -t "commit #1" -d "0 0" -u user
echo This is file b22 > b
hg commit -t "commit #2" -d "0 0" -u user
hg update 1
echo This is file c1 > c
hg add c
hg commit -t "commit #3" -d "0 0" -u user
echo This is file b33 > b
env HGMERGE=../merge hg update -m 2
# merge of b expected
cd ..; /bin/rm -rf t