git-commit-vandalism/t/t1400-update-ref.sh
Shawn Pearce a3a733e63b Record the type of commit operation in the reflog.
If committing a merge (.git/MERGE_HEAD exists), an initial tree
(no HEAD) or using --amend to amend the prior commit then denote
the subtype of commit in the reflog.  This helps to distinguish
amended or merge commits from normal commits.

In the case of --amend the prior sha1 is probably the commit which
is being thrown away in favor of the new commit.  Since it is likely
that the old commit doesn't have any ref pointing to it anymore
it can be interesting to know why that the commit was replaced
and orphaned.

In the case of a merge the prior sha1 is probably the first parent
of the new merge commit.  Consequently having its prior sha1 in the
reflog is slightly less interesting but its still informative to
know the commit was the result of a merge which had to be completed
by hand.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-10 21:21:16 -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 23:38:00}" (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)"'
rm -f .git/$m .git/logs/$m expect
test_expect_success \
'creating initial files' \
'echo TEST >F &&
git-add F &&
GIT_AUTHOR_DATE="2005-05-26 23:30" \
GIT_COMMITTER_DATE="2005-05-26 23:30" git-commit -m add -a &&
h_TEST=$(git-rev-parse --verify HEAD)
echo The other day this did not work. >M &&
echo And then Bob told me how to fix it. >>M &&
echo OTHER >F &&
GIT_AUTHOR_DATE="2005-05-26 23:41" \
GIT_COMMITTER_DATE="2005-05-26 23:41" git-commit -F M -a &&
h_OTHER=$(git-rev-parse --verify HEAD) &&
echo FIXED >F &&
EDITOR=true \
GIT_AUTHOR_DATE="2005-05-26 23:44" \
GIT_COMMITTER_DATE="2005-05-26 23:44" git-commit --amend &&
h_FIXED=$(git-rev-parse --verify HEAD) &&
echo TEST+FIXED >F &&
echo Merged initial commit and a later commit. >M &&
echo $h_TEST >.git/MERGE_HEAD &&
GIT_AUTHOR_DATE="2005-05-26 23:45" \
GIT_COMMITTER_DATE="2005-05-26 23:45" git-commit -F M &&
h_MERGED=$(git-rev-parse --verify HEAD)
rm -f M'
cat >expect <<EOF
$Z $h_TEST $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000 commit (initial): add
$h_TEST $h_OTHER $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000 commit: The other day this did not work.
$h_OTHER $h_FIXED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151040 +0000 commit (amend): The other day this did not work.
$h_FIXED $h_MERGED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151100 +0000 commit (merge): Merged initial commit and a later commit.
EOF
test_expect_success \
'git-commit logged updates' \
'diff expect .git/logs/$m'
unset h_TEST h_OTHER h_FIXED h_MERGED
test_expect_success \
'git-cat-file blob master:F (expect OTHER)' \
'test OTHER = $(git-cat-file blob master:F)'
test_expect_success \
'git-cat-file blob master@{2005-05-26 23:30}:F (expect TEST)' \
'test TEST = $(git-cat-file blob "master@{2005-05-26 23:30}:F")'
test_expect_success \
'git-cat-file blob master@{2005-05-26 23:42}:F (expect OTHER)' \
'test OTHER = $(git-cat-file blob "master@{2005-05-26 23:42}:F")'
test_done