Mercurial > hg
view tests/test-bundle-type.t @ 26845:7a77ee434179
help: replace some str.split() calls by str.partition() or str.rpartition()
Since Python 2.5 str has new methods: partition and rpartition. They are more
specialized than the usual split and rsplit, and they sometimes convey the
intent of code better and also are a bit faster (faster than split/rsplit with
maxsplit specified). Let's use them in appropriate places for a small speedup.
Example performance (partition):
$ python -m timeit 'assert "apple|orange|banana".split("|")[0] == "apple"'
1000000 loops, best of 3: 0.376 usec per loop
$ python -m timeit 'assert "apple|orange|banana".split("|", 1)[0] == "apple"'
1000000 loops, best of 3: 0.327 usec per loop
$ python -m timeit 'assert "apple|orange|banana".partition("|")[0] == "apple"'
1000000 loops, best of 3: 0.214 usec per loop
Example performance (rpartition):
$ python -m timeit 'assert "apple|orange|banana".rsplit("|")[-1] == "banana"'
1000000 loops, best of 3: 0.372 usec per loop
$ python -m timeit 'assert "apple|orange|banana".rsplit("|", 1)[-1] == "banana"'
1000000 loops, best of 3: 0.332 usec per loop
$ python -m timeit 'assert "apple|orange|banana".rpartition("|")[-1] == "banana"'
1000000 loops, best of 3: 0.219 usec per loop
author | Anton Shestakov <av6@dwimlabs.net> |
---|---|
date | Mon, 02 Nov 2015 23:37:14 +0800 |
parents | b13fdcc4e700 |
children | 0994ef28e798 |
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bundle w/o type option $ hg init t1 $ hg init t2 $ cd t1 $ echo blablablablabla > file.txt $ hg ci -Ama adding file.txt $ hg log | grep summary summary: a $ hg bundle ../b1 ../t2 searching for changes 1 changesets found $ cd ../t2 $ hg pull ../b1 pulling from ../b1 requesting all 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) $ hg up 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg log | grep summary summary: a $ cd .. test bundle types $ for t in "None" "bzip2" "gzip" "none-v2" "v2" "v1" "gzip-v1"; do > echo % test bundle type $t > hg init t$t > cd t1 > hg bundle -t $t ../b$t ../t$t > cut -b 1-6 ../b$t | head -n 1 > cd ../t$t > hg debugbundle ../b$t > echo > cd .. > done % test bundle type None searching for changes 1 changesets found HG10UN c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf % test bundle type bzip2 searching for changes 1 changesets found HG10BZ c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf % test bundle type gzip searching for changes 1 changesets found HG10GZ c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf % test bundle type none-v2 searching for changes 1 changesets found HG20\x00\x00 (esc) Stream params: {} changegroup -- "{'version': '02'}" c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf % test bundle type v2 searching for changes 1 changesets found HG20\x00\x00 (esc) Stream params: {'Compression': 'BZ'} changegroup -- "{'version': '02'}" c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf % test bundle type v1 searching for changes 1 changesets found HG10BZ c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf % test bundle type gzip-v1 searching for changes 1 changesets found HG10GZ c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf test garbage file $ echo garbage > bgarbage $ hg init tgarbage $ cd tgarbage $ hg pull ../bgarbage pulling from ../bgarbage abort: ../bgarbage: not a Mercurial bundle [255] $ cd .. test invalid bundle type $ cd t1 $ hg bundle -a -t garbage ../bgarbage abort: garbage is not a recognized bundle specification (see "hg help bundle" for supported values for --type) [255] $ cd ..