view tests/test-branches @ 11609:890ad9d6a169

log: slowpath: do not read the full changelog

When in the slowpath, we are examining _all_ changesets in revs.
We need to order reads so they happen increasingly for I/O performance.

Increasing windows were used to read changelog backwards in a windowed manner,
reading the changelog forward inside each window. But since no revision range
was specified, it was equivalent to reading the full changelog, even if a
single revision was passed to the commandline.

When --removed is used, we _need_ to scan all changesets, but if we're only
looking for file patterns, this is not necessary and we can stick to
the revspec that was given to us.

#!/bin/sh

hg init a
cd a
echo 'root' >root
hg add root
hg commit -d '0 0' -m "Adding root node"

echo 'a' >a
hg add a
hg branch a
hg commit -d '1 0' -m "Adding a branch"

hg branch q
echo 'aa' >a
hg branch -C
hg commit -d '2 0' -m "Adding to a branch"

hg update -C 0
echo 'b' >b
hg add b
hg branch b
hg commit -d '2 0' -m "Adding b branch"

echo 'bh1' >bh1
hg add bh1
hg commit -d '3 0' -m "Adding b branch head 1"

hg update -C 2
echo 'bh2' >bh2
hg add bh2
hg commit -d '4 0' -m "Adding b branch head 2"

echo 'c' >c
hg add c
hg branch c
hg commit -d '5 0' -m "Adding c branch"

hg branch tip
hg branch null
hg branch .

echo 'd' >d
hg add d
hg branch 'a branch name much longer than the default justification used by branches'
hg commit -d '6 0' -m "Adding d branch"

hg branches
echo '-------'
hg branches -a

echo "--- Branch a"
hg log -b a

echo "---- Branch b"
hg log -b b

echo "---- going to test branch closing"
hg branches
hg up -C b
echo 'xxx1' >> b
hg commit -d '7 0' -m 'adding cset to branch b'
hg up -C aee39cd168d0
echo 'xxx2' >> b
hg commit -d '8 0' -m 'adding head to branch b'
echo 'xxx3' >> b
hg commit -d '9 0' -m 'adding another cset to branch b'
hg branches
hg heads --closed
hg heads
hg commit -d '9 0' --close-branch -m 'prune bad branch'
hg branches -a
hg up -C b
hg commit -d '9 0' --close-branch -m 'close this part branch too'
echo '--- b branch should be inactive'
hg branches
hg branches -c
hg branches -a
hg heads b
hg heads --closed b
echo 'xxx4' >> b
hg commit -d '9 0' -m 'reopen branch with a change'
echo '--- branch b is back in action'
hg branches -a
echo '---- test heads listings'
hg heads
echo '% branch default'
hg heads default
echo '% branch a'
hg heads a
hg heads --active a
echo '% branch b'
hg heads b
hg heads --closed b