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e52290428b
git/t/t1400-update-ref.sh
Shawn Pearce e52290428b General ref log reading improvements. 
Corrected the log starting time displayed in the error message
(as it was always showing the epoch due to a bad input to strtoul).

Improved the log parser so we only scan backwards towards the
'\n' from the end of the prior log; during this scan the last '>'
is remembered to improve performance (rather than scanning forward
to it).

If the log record matched is the last log record in the file only
use its new sha1 value if the date matches exactly; otherwise we
leave the passed in sha1 alone as it already contains the current
value of the ref.  This way lookups of dates later than the log
end to stick with the current ref value in case the ref was updated
without logging.

If it looks like someone changed the ref without logging it and we
are going to return the sha1 which should have been valid during
the missing period then warn the user that there might be log data
missing and thus their query result may not be accurate.  The check
isn't perfect as its just based on comparing the old and new sha1
values between the two log records but its better than not checking
at all.

Implemented test cases based on git-rev-parse for most of the
boundary conditions.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-19 15:02:32 -07:00

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#!/bin/sh
#
# Copyright (c) 2006 Shawn Pearce
#
test_description='Test git-update-ref and basic ref logging'
. ./test-lib.sh
Z=0000000000000000000000000000000000000000
A=1111111111111111111111111111111111111111
B=2222222222222222222222222222222222222222
C=3333333333333333333333333333333333333333
D=4444444444444444444444444444444444444444
E=5555555555555555555555555555555555555555
F=6666666666666666666666666666666666666666
m=refs/heads/master
test_expect_success \
"create $m" \
'git-update-ref $m $A &&
test $A = $(cat .git/$m)'
test_expect_success \
"create $m" \
'git-update-ref $m $B $A &&
test $B = $(cat .git/$m)'
rm -f .git/$m
test_expect_success \
"create $m (by HEAD)" \
'git-update-ref HEAD $A &&
test $A = $(cat .git/$m)'
test_expect_success \
"create $m (by HEAD)" \
'git-update-ref HEAD $B $A &&
test $B = $(cat .git/$m)'
rm -f .git/$m
test_expect_failure \
'(not) create HEAD with old sha1' \
'git-update-ref HEAD $A $B'
test_expect_failure \
"(not) prior created .git/$m" \
'test -f .git/$m'
rm -f .git/$m
test_expect_success \
"create HEAD" \
'git-update-ref HEAD $A'
test_expect_failure \
'(not) change HEAD with wrong SHA1' \
'git-update-ref HEAD $B $Z'
test_expect_failure \
"(not) changed .git/$m" \
'test $B = $(cat .git/$m)'
rm -f .git/$m
mkdir -p .git/logs/refs/heads
touch .git/logs/refs/heads/master
test_expect_success \
"create $m (logged by touch)" \
'GIT_COMMITTER_DATE="2005-05-26 23:30" \
git-update-ref HEAD $A -m "Initial Creation" &&
test $A = $(cat .git/$m)'
test_expect_success \
"update $m (logged by touch)" \
'GIT_COMMITTER_DATE="2005-05-26 23:31" \
git-update-ref HEAD $B $A -m "Switch" &&
test $B = $(cat .git/$m)'
test_expect_success \
"set $m (logged by touch)" \
'GIT_COMMITTER_DATE="2005-05-26 23:41" \
git-update-ref HEAD $A &&
test $A = $(cat .git/$m)'
cat >expect <<EOF
$Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000 Initial Creation
$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150260 +0000 Switch
$B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000
EOF
test_expect_success \
"verifying $m's log" \
'diff expect .git/logs/$m'
rm -rf .git/$m .git/logs expect
test_expect_success \
'enable core.logAllRefUpdates' \
'git-repo-config core.logAllRefUpdates true &&
test true = $(git-repo-config --bool --get core.logAllRefUpdates)'
test_expect_success \
"create $m (logged by config)" \
'GIT_COMMITTER_DATE="2005-05-26 23:32" \
git-update-ref HEAD $A -m "Initial Creation" &&
test $A = $(cat .git/$m)'
test_expect_success \
"update $m (logged by config)" \
'GIT_COMMITTER_DATE="2005-05-26 23:33" \
git-update-ref HEAD $B $A -m "Switch" &&
test $B = $(cat .git/$m)'
test_expect_success \
"set $m (logged by config)" \
'GIT_COMMITTER_DATE="2005-05-26 23:43" \
git-update-ref HEAD $A &&
test $A = $(cat .git/$m)'
cat >expect <<EOF
$Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 +0000 Initial Creation
$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 +0000 Switch
$B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 +0000
EOF
test_expect_success \
"verifying $m's log" \
'diff expect .git/logs/$m'
rm -f .git/$m .git/logs/$m expect
git-update-ref $m $D
cat >.git/logs/$m <<EOF
$C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
$F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
$Z $E $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 -0500
EOF
ed="Thu, 26 May 2005 18:32:00 -0500"
gd="Thu, 26 May 2005 18:33:00 -0500"
ld="Thu, 26 May 2005 18:43:00 -0500"
test_expect_success \
'Query "master@May 25 2005" (before history)' \
'rm -f o e
git-rev-parse --verify "master@May 25 2005" >o 2>e &&
test $C = $(cat o) &&
test "warning: Log .git/logs/$m only goes back to $ed." = "$(cat e)"'
test_expect_success \
"Query master@2005-05-25 (before history)" \
'rm -f o e
git-rev-parse --verify master@2005-05-25 >o 2>e &&
test $C = $(cat o) &&
echo test "warning: Log .git/logs/$m only goes back to $ed." = "$(cat e)"'
test_expect_success \
'Query "master@May 26 2005 23:31:59" (1 second before history)' \
'rm -f o e
git-rev-parse --verify "master@May 26 2005 23:31:59" >o 2>e &&
test $C = $(cat o) &&
test "warning: Log .git/logs/$m only goes back to $ed." = "$(cat e)"'
test_expect_success \
'Query "master@May 26 2005 23:32:00" (exactly history start)' \
'rm -f o e
git-rev-parse --verify "master@May 26 2005 23:32:00" >o 2>e &&
test $A = $(cat o) &&
test "" = "$(cat e)"'
test_expect_success \
'Query "master@2005-05-26 23:33:01" (middle of history with gap)' \
'rm -f o e
git-rev-parse --verify "master@2005-05-26 23:33:01" >o 2>e &&
test $B = $(cat o) &&
test "warning: Log .git/logs/$m has gap after $gd." = "$(cat e)"'
test_expect_success \
'Query "master@2005-05-26 23:33:01" (middle of history)' \
'rm -f o e
git-rev-parse --verify "master@2005-05-26 23:38:00" >o 2>e &&
test $Z = $(cat o) &&
test "" = "$(cat e)"'
test_expect_success \
'Query "master@2005-05-26 23:43:00" (exact end of history)' \
'rm -f o e
git-rev-parse --verify "master@2005-05-26 23:43:00" >o 2>e &&
test $E = $(cat o) &&
test "" = "$(cat e)"'
test_expect_success \
'Query "master@2005-05-28" (past end of history)' \
'rm -f o e
git-rev-parse --verify "master@2005-05-28" >o 2>e &&
test $D = $(cat o) &&
test "warning: Log .git/logs/$m unexpectedly ended on $ld." = "$(cat e)"'
test_done
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