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revlog: generate trivial deltas against null revision
To avoid extra memory usage and performance issues with large files,
generate a trivial delta header for deltas against the null revision
rather than calling the usual delta generator.
We append the delta header to meta rather than prepending it to data
to avoid a large allocate and copy.
author | Matt Mackall <mpm@selenic.com> |
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date | Wed, 03 Oct 2007 17:17:27 -0500 |
parents | b0140ead7f70 |
children |
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#!/bin/sh # This test makes sure that we don't mark a file as merged with its ancestor # when we do a merge. cat <<EOF > merge import sys, os print "merging for", os.path.basename(sys.argv[1]) EOF HGMERGE="python ../merge"; export HGMERGE echo creating base hg init a cd a echo 1 > foo echo 1 > bar echo 1 > baz echo 1 > quux hg add foo bar baz quux hg commit -m "base" -d "1000000 0" cd .. hg clone a b echo creating branch a cd a echo 2a > foo echo 2a > bar hg commit -m "branch a" -d "1000000 0" echo creating branch b cd .. cd b echo 2b > foo echo 2b > baz hg commit -m "branch b" -d "1000000 0" echo "we shouldn't have anything but n state here" hg debugstate | cut -b 1-16,35- echo merging hg pull ../a hg merge -v echo 2m > foo echo 2b > baz echo new > quux echo "we shouldn't have anything but foo in merge state here" hg debugstate | cut -b 1-16,35- | grep "^m" hg ci -m "merge" -d "1000000 0" echo "main: we should have a merge here" hg debugindex .hg/store/00changelog.i echo "log should show foo and quux changed" hg log -v -r tip echo "foo: we should have a merge here" hg debugindex .hg/store/data/foo.i echo "bar: we shouldn't have a merge here" hg debugindex .hg/store/data/bar.i echo "baz: we shouldn't have a merge here" hg debugindex .hg/store/data/baz.i echo "quux: we shouldn't have a merge here" hg debugindex .hg/store/data/quux.i echo "manifest entries should match tips of all files" hg manifest --debug echo "everything should be clean now" hg status hg verify