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0bee591869
New and experienced Git users alike are finding out too late that
they forgot to enable reflogs in the current repository, and cannot
use the information stored within it to recover from an incorrectly
entered command such as `git reset --hard HEAD^^^` when they really
meant HEAD^^ (aka HEAD~2).
So enable reflogs by default in all future versions of Git, unless
the user specifically disables it with:
[core]
logAllRefUpdates = false
in their .git/config or ~/.gitconfig.
We only enable reflogs in repositories that have a working directory
associated with them, as shared/bare repositories do not have
an easy means to prune away old log entries, or may fail logging
entirely if the user's gecos information is not valid during a push.
This heuristic was suggested on the mailing list by Junio.
Documentation was also updated to indicate the new default behavior.
We probably should start to teach usuing the reflog to recover
from mistakes in some of the tutorial material, as new users are
likely to make a few along the way and will feel better knowing
they can recover from them quickly and easily, without fsck-objects'
lost+found features.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
234 lines
7.7 KiB
Bash
Executable file
234 lines
7.7 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2006 Shawn Pearce
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#
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test_description='Test git-update-ref and basic ref logging'
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. ./test-lib.sh
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Z=0000000000000000000000000000000000000000
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A=1111111111111111111111111111111111111111
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B=2222222222222222222222222222222222222222
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C=3333333333333333333333333333333333333333
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D=4444444444444444444444444444444444444444
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E=5555555555555555555555555555555555555555
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F=6666666666666666666666666666666666666666
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m=refs/heads/master
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n_dir=refs/heads/gu
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n=$n_dir/fixes
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test_expect_success \
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"create $m" \
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"git-update-ref $m $A &&
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test $A"' = $(cat .git/'"$m"')'
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test_expect_success \
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"create $m" \
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"git-update-ref $m $B $A &&
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test $B"' = $(cat .git/'"$m"')'
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rm -f .git/$m
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test_expect_success \
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"fail to create $n" \
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"touch .git/$n_dir
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git-update-ref $n $A >out 2>err"'
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test $? != 0'
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rm -f .git/$n_dir out err
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test_expect_success \
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"create $m (by HEAD)" \
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"git-update-ref HEAD $A &&
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test $A"' = $(cat .git/'"$m"')'
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test_expect_success \
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"create $m (by HEAD)" \
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"git-update-ref HEAD $B $A &&
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test $B"' = $(cat .git/'"$m"')'
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rm -f .git/$m
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test_expect_failure \
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'(not) create HEAD with old sha1' \
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"git-update-ref HEAD $A $B"
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test_expect_failure \
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"(not) prior created .git/$m" \
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"test -f .git/$m"
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rm -f .git/$m
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test_expect_success \
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"create HEAD" \
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"git-update-ref HEAD $A"
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test_expect_failure \
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'(not) change HEAD with wrong SHA1' \
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"git-update-ref HEAD $B $Z"
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test_expect_failure \
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"(not) changed .git/$m" \
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"test $B"' = $(cat .git/'"$m"')'
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rm -f .git/$m
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: a repository with working tree always has reflog these days...
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: >.git/logs/refs/heads/master
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test_expect_success \
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"create $m (logged by touch)" \
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'GIT_COMMITTER_DATE="2005-05-26 23:30" \
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git-update-ref HEAD '"$A"' -m "Initial Creation" &&
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test '"$A"' = $(cat .git/'"$m"')'
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test_expect_success \
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"update $m (logged by touch)" \
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'GIT_COMMITTER_DATE="2005-05-26 23:31" \
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git-update-ref HEAD'" $B $A "'-m "Switch" &&
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test '"$B"' = $(cat .git/'"$m"')'
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test_expect_success \
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"set $m (logged by touch)" \
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'GIT_COMMITTER_DATE="2005-05-26 23:41" \
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git-update-ref HEAD'" $A &&
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test $A"' = $(cat .git/'"$m"')'
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cat >expect <<EOF
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$Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000 Initial Creation
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$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150260 +0000 Switch
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$B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000
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EOF
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test_expect_success \
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"verifying $m's log" \
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"diff expect .git/logs/$m"
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rm -rf .git/$m .git/logs expect
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test_expect_success \
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'enable core.logAllRefUpdates' \
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'git-repo-config core.logAllRefUpdates true &&
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test true = $(git-repo-config --bool --get core.logAllRefUpdates)'
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test_expect_success \
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"create $m (logged by config)" \
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'GIT_COMMITTER_DATE="2005-05-26 23:32" \
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git-update-ref HEAD'" $A "'-m "Initial Creation" &&
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test '"$A"' = $(cat .git/'"$m"')'
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test_expect_success \
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"update $m (logged by config)" \
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'GIT_COMMITTER_DATE="2005-05-26 23:33" \
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git-update-ref HEAD'" $B $A "'-m "Switch" &&
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test '"$B"' = $(cat .git/'"$m"')'
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test_expect_success \
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"set $m (logged by config)" \
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'GIT_COMMITTER_DATE="2005-05-26 23:43" \
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git-update-ref HEAD '"$A &&
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test $A"' = $(cat .git/'"$m"')'
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cat >expect <<EOF
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$Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 +0000 Initial Creation
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$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 +0000 Switch
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$B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 +0000
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EOF
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test_expect_success \
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"verifying $m's log" \
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'diff expect .git/logs/$m'
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rm -f .git/$m .git/logs/$m expect
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git-update-ref $m $D
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cat >.git/logs/$m <<EOF
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$C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
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$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
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$F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
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$Z $E $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 -0500
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EOF
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ed="Thu, 26 May 2005 18:32:00 -0500"
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gd="Thu, 26 May 2005 18:33:00 -0500"
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ld="Thu, 26 May 2005 18:43:00 -0500"
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test_expect_success \
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'Query "master@{May 25 2005}" (before history)' \
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'rm -f o e
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git-rev-parse --verify "master@{May 25 2005}" >o 2>e &&
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test '"$C"' = $(cat o) &&
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test "warning: Log .git/logs/'"$m only goes back to $ed"'." = "$(cat e)"'
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test_expect_success \
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"Query master@{2005-05-25} (before history)" \
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'rm -f o e
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git-rev-parse --verify master@{2005-05-25} >o 2>e &&
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test '"$C"' = $(cat o) &&
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echo test "warning: Log .git/logs/'"$m only goes back to $ed"'." = "$(cat e)"'
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test_expect_success \
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'Query "master@{May 26 2005 23:31:59}" (1 second before history)' \
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'rm -f o e
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git-rev-parse --verify "master@{May 26 2005 23:31:59}" >o 2>e &&
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test '"$C"' = $(cat o) &&
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test "warning: Log .git/logs/'"$m only goes back to $ed"'." = "$(cat e)"'
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test_expect_success \
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'Query "master@{May 26 2005 23:32:00}" (exactly history start)' \
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'rm -f o e
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git-rev-parse --verify "master@{May 26 2005 23:32:00}" >o 2>e &&
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test '"$A"' = $(cat o) &&
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test "" = "$(cat e)"'
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test_expect_success \
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'Query "master@{2005-05-26 23:33:01}" (middle of history with gap)' \
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'rm -f o e
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git-rev-parse --verify "master@{2005-05-26 23:33:01}" >o 2>e &&
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test '"$B"' = $(cat o) &&
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test "warning: Log .git/logs/'"$m has gap after $gd"'." = "$(cat e)"'
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test_expect_success \
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'Query "master@{2005-05-26 23:38:00}" (middle of history)' \
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'rm -f o e
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git-rev-parse --verify "master@{2005-05-26 23:38:00}" >o 2>e &&
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test '"$Z"' = $(cat o) &&
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test "" = "$(cat e)"'
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test_expect_success \
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'Query "master@{2005-05-26 23:43:00}" (exact end of history)' \
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'rm -f o e
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git-rev-parse --verify "master@{2005-05-26 23:43:00}" >o 2>e &&
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test '"$E"' = $(cat o) &&
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test "" = "$(cat e)"'
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test_expect_success \
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'Query "master@{2005-05-28}" (past end of history)' \
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'rm -f o e
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git-rev-parse --verify "master@{2005-05-28}" >o 2>e &&
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test '"$D"' = $(cat o) &&
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test "warning: Log .git/logs/'"$m unexpectedly ended on $ld"'." = "$(cat e)"'
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rm -f .git/$m .git/logs/$m expect
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test_expect_success \
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'creating initial files' \
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'echo TEST >F &&
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git-add F &&
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GIT_AUTHOR_DATE="2005-05-26 23:30" \
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GIT_COMMITTER_DATE="2005-05-26 23:30" git-commit -m add -a &&
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h_TEST=$(git-rev-parse --verify HEAD)
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echo The other day this did not work. >M &&
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echo And then Bob told me how to fix it. >>M &&
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echo OTHER >F &&
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GIT_AUTHOR_DATE="2005-05-26 23:41" \
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GIT_COMMITTER_DATE="2005-05-26 23:41" git-commit -F M -a &&
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h_OTHER=$(git-rev-parse --verify HEAD) &&
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echo FIXED >F &&
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GIT_AUTHOR_DATE="2005-05-26 23:44" \
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GIT_COMMITTER_DATE="2005-05-26 23:44" git-commit --amend &&
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h_FIXED=$(git-rev-parse --verify HEAD) &&
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echo TEST+FIXED >F &&
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echo Merged initial commit and a later commit. >M &&
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echo $h_TEST >.git/MERGE_HEAD &&
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GIT_AUTHOR_DATE="2005-05-26 23:45" \
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GIT_COMMITTER_DATE="2005-05-26 23:45" git-commit -F M &&
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h_MERGED=$(git-rev-parse --verify HEAD)
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rm -f M'
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cat >expect <<EOF
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$Z $h_TEST $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000 commit (initial): add
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$h_TEST $h_OTHER $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000 commit: The other day this did not work.
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$h_OTHER $h_FIXED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151040 +0000 commit (amend): The other day this did not work.
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$h_FIXED $h_MERGED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151100 +0000 commit (merge): Merged initial commit and a later commit.
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EOF
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test_expect_success \
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'git-commit logged updates' \
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"diff expect .git/logs/$m"
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unset h_TEST h_OTHER h_FIXED h_MERGED
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test_expect_success \
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'git-cat-file blob master:F (expect OTHER)' \
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'test OTHER = $(git-cat-file blob master:F)'
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test_expect_success \
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'git-cat-file blob master@{2005-05-26 23:30}:F (expect TEST)' \
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'test TEST = $(git-cat-file blob "master@{2005-05-26 23:30}:F")'
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test_expect_success \
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'git-cat-file blob master@{2005-05-26 23:42}:F (expect OTHER)' \
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'test OTHER = $(git-cat-file blob "master@{2005-05-26 23:42}:F")'
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test_done
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