Mercurial > hg
view tests/test-grep @ 8849:80cc4b1a62d0
compare grep result between target and its parent
I found that typical case is that grep target is added at (*) revision
in the tree shown below.
+--- 1(*) --- 3
0
+--- 2 ------ 4
Now, I expect 'hg grep --all' to show only rev:1 which is first
appearance of target line.
But 'hg grep --all' will tell:
target line dis-appeared at 3 => 4
target line appeared at 2 => 3
target line dis-appeared at 1 => 2
target line appeared at 0 => 1
because current 'hg grep' implementation compares not between target
revision and its parent, but between neighbor revisions in walkthrough
order.
I checked performance of this patch by "hg grep --follow --all
walkchangerevs" on whole Mercurial repo, and patched version could
complete as fast as un-patched one.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Tue, 19 May 2009 16:49:54 +0900 |
parents | 6c82beaaa11a |
children | aa78a0583731 |
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#!/bin/sh mkdir t cd t hg init echo import > port hg add port hg commit -m 0 -u spam -d '0 0' echo export >> port hg commit -m 1 -u eggs -d '1 0' echo export > port echo vaportight >> port echo 'import/export' >> port hg commit -m 2 -u spam -d '2 0' echo 'import/export' >> port hg commit -m 3 -u eggs -d '3 0' head -n 3 port > port1 mv port1 port hg commit -m 4 -u spam -d '4 0' echo % pattern error hg grep '**test**' echo % simple hg grep port port echo % all hg grep --all -nu port port echo % other hg grep import port hg cp port port2 hg commit -m 4 -u spam -d '5 0' echo '% follow' hg grep -f 'import$' port2 echo deport >> port2 hg commit -m 5 -u eggs -d '6 0' hg grep -f --all -nu port port2 cd .. hg init t2 cd t2 hg grep foobar foo hg grep foobar echo blue >> color echo black >> color hg add color hg ci -m 0 echo orange >> color hg ci -m 1 echo black > color hg ci -m 2 echo orange >> color echo blue >> color hg ci -m 3 hg grep orange hg grep --all orange echo % match in last "line" without newline python -c 'fp = open("noeol", "wb"); fp.write("no infinite loop"); fp.close();' hg ci -Amnoeol echo % last character omitted in output to avoid infinite loop hg grep loop # Got a traceback when using grep on a single # revision with renamed files. cd .. echo % issue 685 hg init issue685 cd issue685 echo octarine > color hg ci -Amcolor hg rename color colour hg ci -Am rename hg grep octarine # Used to crash here hg grep -r 1 octarine # Issue337: grep did not compared changesets by their revision numbers # instead of following parent-child relationships. cd .. echo % issue 337 hg init issue337 cd issue337 echo white > color hg commit -A -m "0 white" echo red > color hg commit -A -m "1 red" hg update 0 echo black > color hg commit -A -m "2 black" hg update --clean 1 echo blue > color hg commit -A -m "3 blue" hg grep --all red