Mercurial > hg
view tests/test-merge-symlinks.t @ 18091:f7f8159caad3
ancestor: add lazy membership testing to lazyancestors
This also makes the perfancestorset command use lazy membership testing. In a
linear repository with over 400,000 commits, without this patch, hg
perfancestorset takes 0.80 seconds no matter how far behind we're looking.
With this patch, hg perfancestorset -- X takes:
Rev X Time
-1 0.00s
-4000 0.01s
-20000 0.04s
-80000 0.17s
-200000 0.43s
-300000 0.69s
0 0.88s
Thus, for revisions close to tip, we're up to several orders of magnitude
faster. At 0 we're around 10% slower.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Tue, 18 Dec 2012 12:47:20 -0800 |
parents | f2719b387380 |
children | b6776b34e44e |
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$ cat > echo.py <<EOF > #!/usr/bin/env python > import os, sys > try: > import msvcrt > msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) > msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) > except ImportError: > pass > > for k in ('HG_FILE', 'HG_MY_ISLINK', 'HG_OTHER_ISLINK', 'HG_BASE_ISLINK'): > print k, os.environ[k] > EOF Create 2 heads containing the same file, once as a file, once as a link. Bundle was generated with: # hg init t # cd t # echo a > a # hg ci -qAm t0 -d '0 0' # echo l > l # hg ci -qAm t1 -d '1 0' # hg up -C 0 # ln -s a l # hg ci -qAm t2 -d '2 0' # echo l2 > l2 # hg ci -qAm t3 -d '3 0' $ hg init t $ cd t $ hg -q pull "$TESTDIR/bundles/test-merge-symlinks.hg" $ hg up -C 3 3 files updated, 0 files merged, 0 files removed, 0 files unresolved Merge them and display *_ISLINK vars merge heads $ hg merge --tool="python ../echo.py" merging l HG_FILE l HG_MY_ISLINK 1 HG_OTHER_ISLINK 0 HG_BASE_ISLINK 0 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) Test working directory symlink bit calculation wrt copies, especially on non-supporting systems. merge working directory $ hg up -C 2 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg copy l l2 $ HGMERGE="python ../echo.py" hg up 3 merging l2 HG_FILE l2 HG_MY_ISLINK 1 HG_OTHER_ISLINK 0 HG_BASE_ISLINK 0 0 files updated, 1 files merged, 0 files removed, 0 files unresolved $ cd ..