Mercurial > hg
view tests/test-encode.t @ 18136:f23dea2b296e
copies: do not track backward copies, only renames (issue3739)
The inverse of a rename is a rename, but the inverse of a copy is not a copy.
Presenting it as such -- in particular, stuffing it into the same dict as real
copies -- causes bugs because other code starts believing the inverse copies
are real.
The only test whose output changes is test-mv-cp-st-diff.t. When a backwards
status -C command is run where a copy is involved, the inverse copy (which was
hitherto presented as a real copy) is no longer displayed.
Keeping track of inverse copies is useful in some situations -- composability
of diffs, for example, since adding "a" followed by an inverse copy "b" to "a"
is equivalent to a rename "b" to "a". However, representing them would require
a more complex data structure than the same dict in which real copies are also
stored.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Wed, 26 Dec 2012 15:04:07 -0800 |
parents | f2719b387380 |
children | 538353b80676 |
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Test encode/decode filters $ hg init $ cat > .hg/hgrc <<EOF > [encode] > not.gz = tr [:lower:] [:upper:] > *.gz = gzip -d > [decode] > not.gz = tr [:upper:] [:lower:] > *.gz = gzip > EOF $ echo "this is a test" | gzip > a.gz $ echo "this is a test" > not.gz $ hg add * $ hg ci -m "test" no changes $ hg status $ touch * no changes $ hg status check contents in repo are encoded $ hg debugdata a.gz 0 this is a test $ hg debugdata not.gz 0 THIS IS A TEST check committed content was decoded $ gunzip < a.gz this is a test $ cat not.gz this is a test $ rm * $ hg co -C 2 files updated, 0 files merged, 0 files removed, 0 files unresolved check decoding of our new working dir copy $ gunzip < a.gz this is a test $ cat not.gz this is a test check hg cat operation $ hg cat a.gz this is a test $ hg cat --decode a.gz | gunzip this is a test $ mkdir subdir $ cd subdir $ hg -R .. cat ../a.gz this is a test $ hg -R .. cat --decode ../a.gz | gunzip this is a test $ cd ..