Mercurial > hg
view tests/test-histedit-revspec.t @ 18063:34a1a639d835
revset.children: ignore rev numbers that are too low
This replaces unnecessary parentrevs() calls with calculating min(parentset).
Even though the min operation is O(size of parentset), since parentrevs is
relatively expensive, this tradeoff almost always works in our favour. In a
repository with over 400,000 changesets, hg perfrevset "children(X)" takes:
Set X Before After
-1 0.51s 0.06s
-1000: 0.55s 0.08s
-10000: 0.56s 0.10s
-100000: 0.60s 0.25s
-100000:-99000 0.55s 0.19s
0:100000 0.60s 0.61s
all() 0.72s 0.74s
The relative performance is similar for Mercurial's own repository -- several
times faster in most cases, slightly slower for revisions close to 0 and
all().
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Fri, 07 Dec 2012 10:37:43 -0800 |
parents | d9da327516f8 |
children | 3adbd57e1794 |
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This test requires parentrevspec support in revsets, so check for that and skip the test if we're on an unusual hg that supports .t tests but not parentrevspec. $ python -c 'from mercurial import revset ; revset.methods["parentpost"]' || exit 80 Enable extensions used by this test. $ cat >>$HGRCPATH <<EOF > [extensions] > graphlog= > histedit= > EOF Repo setup. $ hg init foo $ cd foo $ echo alpha >> alpha $ hg addr adding alpha $ hg ci -m one $ echo alpha >> alpha $ hg ci -m two $ echo alpha >> alpha $ hg ci -m three $ echo alpha >> alpha $ hg ci -m four $ echo alpha >> alpha $ hg ci -m five $ hg log --style compact --graph @ 4[tip] 08d98a8350f3 1970-01-01 00:00 +0000 test | five | o 3 c8e68270e35a 1970-01-01 00:00 +0000 test | four | o 2 eb57da33312f 1970-01-01 00:00 +0000 test | three | o 1 579e40513370 1970-01-01 00:00 +0000 test | two | o 0 6058cbb6cfd7 1970-01-01 00:00 +0000 test one Run a dummy edit to make sure we get tip^^ correctly via revsingle. $ HGEDITOR=cat hg histedit "tip^^" pick eb57da33312f 2 three pick c8e68270e35a 3 four pick 08d98a8350f3 4 five # Edit history between eb57da33312f and 08d98a8350f3 # # Commands: # p, pick = use commit # e, edit = use commit, but stop for amending # f, fold = use commit, but fold into previous commit (combines N and N-1) # d, drop = remove commit from history # m, mess = edit message without changing commit content # 0 files updated, 0 files merged, 0 files removed, 0 files unresolved Run on a revision not ancestors of the current working directory. $ hg up 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg histedit -r 4 nothing to edit [1]