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git/t/annotate-tests.sh
SZEDER Gábor a544fb08f8 blame: default to HEAD in a bare repo when no start commit is given 
When 'git blame' is invoked without specifying the commit to start
blaming from, it starts from the given file's state in the work tree.
However, when invoked in a bare repository without a start commit,
then there is no work tree state to start from, and it dies with the
following error message:

  $ git rev-parse --is-bare-repository
  true
  $ git blame file.c
  fatal: this operation must be run in a work tree

This is misleading, because it implies that 'git blame' doesn't work
in bare repositories at all, but it does, in fact, work just fine when
it is given a commit to start from.

We could improve the error message, of course, but let's just default
to HEAD in a bare repository instead, as most likely that is what the
user wanted anyway (if they wanted to start from an other commit, then
they would have specified that in the first place).

'git annotate' is just a thin wrapper around 'git blame', so in the
same situation it printed the same misleading error message, and this
patch fixes it, too.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-08 17:02:26 +09:00

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# This file isn't used as a test script directly, instead it is
# sourced from t8001-annotate.sh and t8002-blame.sh.
if test_have_prereq MINGW
then
sanitize_L () {
echo "$1" | sed 'sX\(^-L\|,\)\^\?/X&\\;*Xg'
}
else
sanitize_L () {
echo "$1"
}
fi
check_count () {
head= &&
file='file' &&
options= &&
while :
do
case "$1" in
-h) head="$2"; shift; shift ;;
-f) file="$2"; shift; shift ;;
-L*) options="$options $(sanitize_L "$1")"; shift ;;
-*) options="$options $1"; shift ;;
*) break ;;
esac
done &&
echo "$PROG $options $file $head" >&4 &&
$PROG $options $file $head >actual &&
perl -e '
my %expect = (@ARGV);
my %count = map { $_ => 0 } keys %expect;
while (<STDIN>) {
if (/^[0-9a-f]+\t\(([^\t]+)\t/) {
my $author = $1;
for ($author) { s/^\s*//; s/\s*$//; }
$count{$author}++;
}
}
my $bad = 0;
while (my ($author, $count) = each %count) {
my $ok;
my $value = 0;
$value = $expect{$author} if defined $expect{$author};
if ($value != $count) {
$bad = 1;
$ok = "bad";
}
else {
$ok = "good";
}
print STDERR "Author $author (expected $value, attributed $count) $ok\n";
}
exit($bad);
' "$@" <actual
}
test_expect_success 'setup A lines' '
echo "1A quick brown fox jumps over the" >file &&
echo "lazy dog" >>file &&
git add file &&
GIT_AUTHOR_NAME="A" GIT_AUTHOR_EMAIL="A@test.git" \
git commit -a -m "Initial."
'
test_expect_success 'blame 1 author' '
check_count A 2
'
test_expect_success 'blame in a bare repo without starting commit' '
git clone --bare . bare.git &&
(
cd bare.git &&
check_count A 2
)
'
test_expect_success 'blame by tag objects' '
git tag -m "test tag" testTag &&
git tag -m "test tag #2" testTag2 testTag &&
check_count -h testTag A 2 &&
check_count -h testTag2 A 2
'
test_expect_success 'setup B lines' '
echo "2A quick brown fox jumps over the" >>file &&
echo "lazy dog" >>file &&
GIT_AUTHOR_NAME="B" GIT_AUTHOR_EMAIL="B@test.git" \
git commit -a -m "Second."
'
test_expect_success 'blame 2 authors' '
check_count A 2 B 2
'
test_expect_success 'setup B1 lines (branch1)' '
git checkout -b branch1 master &&
echo "3A slow green fox jumps into the" >>file &&
echo "well." >>file &&
GIT_AUTHOR_NAME="B1" GIT_AUTHOR_EMAIL="B1@test.git" \
git commit -a -m "Branch1-1"
'
test_expect_success 'blame 2 authors + 1 branch1 author' '
check_count A 2 B 2 B1 2
'
test_expect_success 'setup B2 lines (branch2)' '
git checkout -b branch2 master &&
sed -e "s/2A quick brown/4A quick brown lazy dog/" <file >file.new &&
mv file.new file &&
GIT_AUTHOR_NAME="B2" GIT_AUTHOR_EMAIL="B2@test.git" \
git commit -a -m "Branch2-1"
'
test_expect_success 'blame 2 authors + 1 branch2 author' '
check_count A 2 B 1 B2 1
'
test_expect_success 'merge branch1 & branch2' '
git merge branch1
'
test_expect_success 'blame 2 authors + 2 merged-in authors' '
check_count A 2 B 1 B1 2 B2 1
'
test_expect_success 'blame --first-parent blames merge for branch1' '
check_count --first-parent A 2 B 1 "A U Thor" 2 B2 1
'
test_expect_success 'blame ancestor' '
check_count -h master A 2 B 2
'
test_expect_success 'blame great-ancestor' '
check_count -h master^ A 2
'
test_expect_success 'setup evil merge' '
echo "evil merge." >>file &&
git commit -a --amend
'
test_expect_success 'blame evil merge' '
check_count A 2 B 1 B1 2 B2 1 "A U Thor" 1
'
test_expect_success 'blame huge graft' '
test_when_finished "git checkout branch2" &&
test_when_finished "rm -f .git/info/grafts" &&
graft= &&
for i in 0 1 2
do
for j in 0 1 2 3 4 5 6 7 8 9
do
git checkout --orphan "$i$j" &&
printf "%s\n" "$i" "$j" >file &&
test_tick &&
GIT_AUTHOR_NAME=$i$j GIT_AUTHOR_EMAIL=$i$j@test.git \
git commit -a -m "$i$j" &&
commit=$(git rev-parse --verify HEAD) &&
graft="$graft$commit "
done
done &&
printf "%s " $graft >.git/info/grafts &&
check_count -h 00 01 1 10 1
'
test_expect_success 'setup incomplete line' '
echo "incomplete" | tr -d "\\012" >>file &&
GIT_AUTHOR_NAME="C" GIT_AUTHOR_EMAIL="C@test.git" \
git commit -a -m "Incomplete"
'
test_expect_success 'blame incomplete line' '
check_count A 2 B 1 B1 2 B2 1 "A U Thor" 1 C 1
'
test_expect_success 'setup edits' '
mv file file.orig &&
{
cat file.orig &&
echo
} | sed -e "s/^3A/99/" -e "/^1A/d" -e "/^incomplete/d" >file &&
echo "incomplete" | tr -d "\\012" >>file &&
GIT_AUTHOR_NAME="D" GIT_AUTHOR_EMAIL="D@test.git" \
git commit -a -m "edit"
'
test_expect_success 'blame edits' '
check_count A 1 B 1 B1 1 B2 1 "A U Thor" 1 C 1 D 1
'
test_expect_success 'setup obfuscated email' '
echo "No robots allowed" >file.new &&
cat file >>file.new &&
mv file.new file &&
GIT_AUTHOR_NAME="E" GIT_AUTHOR_EMAIL="E at test dot git" \
git commit -a -m "norobots"
'
test_expect_success 'blame obfuscated email' '
check_count A 1 B 1 B1 1 B2 1 "A U Thor" 1 C 1 D 1 E 1
'
test_expect_success 'blame -L 1 (all)' '
check_count -L1 A 1 B 1 B1 1 B2 1 "A U Thor" 1 C 1 D 1 E 1
'
test_expect_success 'blame -L , (all)' '
check_count -L, A 1 B 1 B1 1 B2 1 "A U Thor" 1 C 1 D 1 E 1
'
test_expect_success 'blame -L X (X to end)' '
check_count -L5 B1 1 C 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L X, (X to end)' '
check_count -L5, B1 1 C 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L ,Y (up to Y)' '
check_count -L,3 A 1 B2 1 E 1
'
test_expect_success 'blame -L X,X' '
check_count -L3,3 B2 1
'
test_expect_success 'blame -L X,Y' '
check_count -L3,6 B 1 B1 1 B2 1 D 1
'
test_expect_success 'blame -L Y,X (undocumented)' '
check_count -L6,3 B 1 B1 1 B2 1 D 1
'
test_expect_success 'blame -L -X' '
test_must_fail $PROG -L-1 file
'
test_expect_success 'blame -L 0' '
test_must_fail $PROG -L0 file
'
test_expect_success 'blame -L ,0' '
test_must_fail $PROG -L,0 file
'
test_expect_success 'blame -L ,+0' '
test_must_fail $PROG -L,+0 file
'
test_expect_success 'blame -L X,+0' '
test_must_fail $PROG -L1,+0 file
'
test_expect_success 'blame -L X,+1' '
check_count -L3,+1 B2 1
'
test_expect_success 'blame -L X,+N' '
check_count -L3,+4 B 1 B1 1 B2 1 D 1
'
test_expect_success 'blame -L ,-0' '
test_must_fail $PROG -L,-0 file
'
test_expect_success 'blame -L X,-0' '
test_must_fail $PROG -L1,-0 file
'
test_expect_success 'blame -L X,-1' '
check_count -L3,-1 B2 1
'
test_expect_success 'blame -L X,-N' '
check_count -L6,-4 B 1 B1 1 B2 1 D 1
'
test_expect_success 'blame -L /RE/ (RE to end)' '
check_count -L/evil/ C 1 "A U Thor" 1
'
test_expect_success 'blame -L /RE/,/RE2/' '
check_count -L/robot/,/green/ A 1 B 1 B2 1 D 1 E 1
'
test_expect_success 'blame -L X,/RE/' '
check_count -L5,/evil/ B1 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L /RE/,Y' '
check_count -L/99/,7 B1 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L /RE/,+N' '
check_count -L/99/,+3 B1 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L /RE/,-N' '
check_count -L/99/,-3 B 1 B2 1 D 1
'
# 'file' ends with an incomplete line, so 'wc' reports one fewer lines than
# git-blame sees, hence the last line is actually $(wc...)+1.
test_expect_success 'blame -L X (X == nlines)' '
n=$(expr $(wc -l <file) + 1) &&
check_count -L$n C 1
'
test_expect_success 'blame -L X (X == nlines + 1)' '
n=$(expr $(wc -l <file) + 2) &&
test_must_fail $PROG -L$n file
'
test_expect_success 'blame -L X (X > nlines)' '
test_must_fail $PROG -L12345 file
'
test_expect_success 'blame -L ,Y (Y == nlines)' '
n=$(expr $(wc -l <file) + 1) &&
check_count -L,$n A 1 B 1 B1 1 B2 1 "A U Thor" 1 C 1 D 1 E 1
'
test_expect_success 'blame -L ,Y (Y == nlines + 1)' '
n=$(expr $(wc -l <file) + 2) &&
check_count -L,$n A 1 B 1 B1 1 B2 1 "A U Thor" 1 C 1 D 1 E 1
'
test_expect_success 'blame -L ,Y (Y > nlines)' '
check_count -L,12345 A 1 B 1 B1 1 B2 1 "A U Thor" 1 C 1 D 1 E 1
'
test_expect_success 'blame -L multiple (disjoint)' '
check_count -L2,3 -L6,7 A 1 B1 1 B2 1 "A U Thor" 1
'
test_expect_success 'blame -L multiple (disjoint: unordered)' '
check_count -L6,7 -L2,3 A 1 B1 1 B2 1 "A U Thor" 1
'
test_expect_success 'blame -L multiple (adjacent)' '
check_count -L2,3 -L4,5 A 1 B 1 B2 1 D 1
'
test_expect_success 'blame -L multiple (adjacent: unordered)' '
check_count -L4,5 -L2,3 A 1 B 1 B2 1 D 1
'
test_expect_success 'blame -L multiple (overlapping)' '
check_count -L2,4 -L3,5 A 1 B 1 B2 1 D 1
'
test_expect_success 'blame -L multiple (overlapping: unordered)' '
check_count -L3,5 -L2,4 A 1 B 1 B2 1 D 1
'
test_expect_success 'blame -L multiple (superset/subset)' '
check_count -L2,8 -L3,5 A 1 B 1 B1 1 B2 1 C 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L multiple (superset/subset: unordered)' '
check_count -L3,5 -L2,8 A 1 B 1 B1 1 B2 1 C 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L /RE/ (relative)' '
check_count -L3,3 -L/fox/ B1 1 B2 1 C 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L /RE/ (relative: no preceding range)' '
check_count -L/dog/ A 1 B 1 B1 1 B2 1 C 1 D 1 "A U Thor" 1
'
test_expect_success 'blame -L /RE/ (relative: adjacent)' '
check_count -L1,1 -L/dog/,+1 A 1 E 1
'
test_expect_success 'blame -L /RE/ (relative: not found)' '
test_must_fail $PROG -L4,4 -L/dog/ file
'
test_expect_success 'blame -L /RE/ (relative: end-of-file)' '
test_must_fail $PROG -L, -L/$/ file
'
test_expect_success 'blame -L ^/RE/ (absolute)' '
check_count -L3,3 -L^/dog/,+2 A 1 B2 1
'
test_expect_success 'blame -L ^/RE/ (absolute: no preceding range)' '
check_count -L^/dog/,+2 A 1 B2 1
'
test_expect_success 'blame -L ^/RE/ (absolute: not found)' '
test_must_fail $PROG -L4,4 -L^/tambourine/ file
'
test_expect_success 'blame -L ^/RE/ (absolute: end-of-file)' '
n=$(expr $(wc -l <file) + 1) &&
check_count -L$n -L^/$/,+2 A 1 C 1 E 1
'
test_expect_success 'setup -L :regex' '
tr Q "\\t" >hello.c <<-\EOF &&
int main(int argc, const char *argv[])
{
Qputs("hello");
}
EOF
git add hello.c &&
GIT_AUTHOR_NAME="F" GIT_AUTHOR_EMAIL="F@test.git" \
git commit -m "hello" &&
mv hello.c hello.orig &&
sed -e "/}/ {x; s/$/Qputs(\"goodbye\");/; G;}" <hello.orig |
tr Q "\\t" >hello.c &&
GIT_AUTHOR_NAME="G" GIT_AUTHOR_EMAIL="G@test.git" \
git commit -a -m "goodbye" &&
mv hello.c hello.orig &&
echo "#include <stdio.h>" >hello.c &&
cat hello.orig >>hello.c &&
tr Q "\\t" >>hello.c <<-\EOF &&
void mail()
{
Qputs("mail");
}
EOF
GIT_AUTHOR_NAME="H" GIT_AUTHOR_EMAIL="H@test.git" \
git commit -a -m "mail"
'
test_expect_success 'blame -L :literal' '
check_count -f hello.c -L:main F 4 G 1
'
test_expect_success 'blame -L :regex' '
check_count -f hello.c "-L:m[a-z][a-z]l" H 4
'
test_expect_success 'blame -L :nomatch' '
test_must_fail $PROG -L:nomatch hello.c
'
test_expect_success 'blame -L :RE (relative)' '
check_count -f hello.c -L3,3 -L:ma.. F 1 H 4
'
test_expect_success 'blame -L :RE (relative: no preceding range)' '
check_count -f hello.c -L:ma.. F 4 G 1
'
test_expect_success 'blame -L :RE (relative: not found)' '
test_must_fail $PROG -L3,3 -L:tambourine hello.c
'
test_expect_success 'blame -L :RE (relative: end-of-file)' '
test_must_fail $PROG -L, -L:main hello.c
'
test_expect_success 'blame -L ^:RE (absolute)' '
check_count -f hello.c -L3,3 -L^:ma.. F 4 G 1
'
test_expect_success 'blame -L ^:RE (absolute: no preceding range)' '
check_count -f hello.c -L^:ma.. F 4 G 1
'
test_expect_success 'blame -L ^:RE (absolute: not found)' '
test_must_fail $PROG -L4,4 -L^:tambourine hello.c
'
test_expect_success 'blame -L ^:RE (absolute: end-of-file)' '
n=$(printf "%d" $(wc -l <hello.c)) &&
check_count -f hello.c -L$n -L^:ma.. F 4 G 1 H 1
'
test_expect_success 'setup incremental' '
(
GIT_AUTHOR_NAME=I &&
export GIT_AUTHOR_NAME &&
GIT_AUTHOR_EMAIL=I@test.git &&
export GIT_AUTHOR_EMAIL &&
>incremental &&
git add incremental &&
git commit -m "step 0" &&
printf "partial" >>incremental &&
git commit -a -m "step 0.5" &&
echo >>incremental &&
git commit -a -m "step 1"
)
'
test_expect_success 'blame empty' '
check_count -h HEAD^^ -f incremental
'
test_expect_success 'blame -L 0 empty' '
test_must_fail $PROG -L0 incremental HEAD^^
'
test_expect_success 'blame -L 1 empty' '
test_must_fail $PROG -L1 incremental HEAD^^
'
test_expect_success 'blame -L 2 empty' '
test_must_fail $PROG -L2 incremental HEAD^^
'
test_expect_success 'blame half' '
check_count -h HEAD^ -f incremental I 1
'
test_expect_success 'blame -L 0 half' '
test_must_fail $PROG -L0 incremental HEAD^
'
test_expect_success 'blame -L 1 half' '
check_count -h HEAD^ -f incremental -L1 I 1
'
test_expect_success 'blame -L 2 half' '
test_must_fail $PROG -L2 incremental HEAD^
'
test_expect_success 'blame -L 3 half' '
test_must_fail $PROG -L3 incremental HEAD^
'
test_expect_success 'blame full' '
check_count -f incremental I 1
'
test_expect_success 'blame -L 0 full' '
test_must_fail $PROG -L0 incremental
'
test_expect_success 'blame -L 1 full' '
check_count -f incremental -L1 I 1
'
test_expect_success 'blame -L 2 full' '
test_must_fail $PROG -L2 incremental
'
test_expect_success 'blame -L 3 full' '
test_must_fail $PROG -L3 incremental
'
test_expect_success 'blame -L' '
test_must_fail $PROG -L file
'
test_expect_success 'blame -L X,+' '
test_must_fail $PROG -L1,+ file
'
test_expect_success 'blame -L X,-' '
test_must_fail $PROG -L1,- file
'
test_expect_success 'blame -L X (non-numeric X)' '
test_must_fail $PROG -LX file
'
test_expect_success 'blame -L X,Y (non-numeric Y)' '
test_must_fail $PROG -L1,Y file
'
test_expect_success 'blame -L X,+N (non-numeric N)' '
test_must_fail $PROG -L1,+N file
'
test_expect_success 'blame -L X,-N (non-numeric N)' '
test_must_fail $PROG -L1,-N file
'
test_expect_success 'blame -L ,^/RE/' '
test_must_fail $PROG -L1,^/99/ file
'
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