help: improve merge-tools topic, describe --tool and clarify details
This doesn't make it simpler, but it makes it more correct.
With help from erikz, mg and abuehl.
$ cp "$TESTDIR"/printenv.py .
$ hg init test
$ cd test
$ echo foo>foo
$ mkdir foo.d foo.d/bAr.hg.d foo.d/baR.d.hg
$ echo foo>foo.d/foo
$ echo bar>foo.d/bAr.hg.d/BaR
$ echo bar>foo.d/baR.d.hg/bAR
$ hg commit -A -m 1
adding foo
adding foo.d/bAr.hg.d/BaR
adding foo.d/baR.d.hg/bAR
adding foo.d/foo
$ hg serve -p $HGPORT -d --pid-file=../hg1.pid
$ hg --config server.uncompressed=False serve -p $HGPORT1 -d --pid-file=../hg2.pid
Test server address cannot be reused
$ hg serve -p $HGPORT1 2>&1
abort: cannot start server at ':$HGPORT1': Address already in use
[255]
$ cd ..
$ cat hg1.pid hg2.pid >> $DAEMON_PIDS
clone via stream
$ hg clone --uncompressed http://localhost:$HGPORT/ copy 2>&1
streaming all changes
6 files to transfer, 606 bytes of data
transferred * bytes in * seconds (*B/sec) (glob)
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg verify -R copy
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 1 changesets, 4 total revisions
try to clone via stream, should use pull instead
$ hg clone --uncompressed http://localhost:$HGPORT1/ copy2
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 4 changes to 4 files
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
clone via pull
$ hg clone http://localhost:$HGPORT1/ copy-pull
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 4 changes to 4 files
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg verify -R copy-pull
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 1 changesets, 4 total revisions
$ cd test
$ echo bar > bar
$ hg commit -A -d '1 0' -m 2
adding bar
$ cd ..
pull
$ cd copy-pull
$ echo '[hooks]' >> .hg/hgrc
$ echo 'changegroup = python ../printenv.py changegroup' >> .hg/hgrc
$ hg pull
changegroup hook: HG_NODE=5fed3813f7f5e1824344fdc9cf8f63bb662c292d HG_SOURCE=pull HG_URL=http://localhost:$HGPORT1/
pulling from http://localhost:$HGPORT1/
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
(run 'hg update' to get a working copy)
$ cd ..