Merge branch 'es/blame-L-more'

More fixes to the code to parse the "-L" option in "log" and "blame".

* es/blame-L-more:
  blame: reject empty ranges -L,+0 and -L,-0
  t8001/t8002: blame: demonstrate acceptance of bogus -L,+0 and -L,-0
  blame: reject empty ranges -LX,+0 and -LX,-0
  t8001/t8002: blame: demonstrate acceptance of bogus -LX,+0 and -LX,-0
  log: fix -L bounds checking bug
  t4211: retire soon-to-be unimplementable tests
  t4211: log: demonstrate -L bounds checking bug
  blame: fix -L bounds checking bug
  t8001/t8002: blame: add empty file & partial-line tests
  t8001/t8002: blame: demonstrate -L bounds checking bug
  t8001/t8002: blame: decompose overly-large test
This commit is contained in:
Junio C Hamano 2013-09-09 14:32:45 -07:00
commit 118b9d5836
5 changed files with 167 additions and 20 deletions

View File

@ -2495,13 +2495,13 @@ parse_done:
bottom = top = 0;
if (bottomtop)
prepare_blame_range(&sb, bottomtop, lno, &bottom, &top);
if (lno < top || ((lno || bottom) && lno < bottom))
die("file %s has only %lu lines", path, lno);
if (bottom < 1)
bottom = 1;
if (top < 1)
top = lno;
bottom--;
if (lno < top || lno < bottom)
die("file %s has only %lu lines", path, lno);
ent = xcalloc(1, sizeof(*ent));
ent->lno = bottom;

View File

@ -594,13 +594,13 @@ parse_lines(struct commit *commit, const char *prefix, struct string_list *args)
lines, &begin, &end,
full_name))
die("malformed -L argument '%s'", range_part);
if (lines < end || ((lines || begin) && lines < begin))
die("file %s has only %lu lines", name_part, lines);
if (begin < 1)
begin = 1;
if (end < 1)
end = lines;
begin--;
if (lines < end || lines < begin)
die("file %s has only %ld lines", name_part, lines);
line_log_data_insert(&ranges, full_name, begin, end);
free_filespec(spec);

View File

@ -21,11 +21,13 @@ static const char *parse_loc(const char *spec, nth_line_fn_t nth_line,
* for 20 lines, or "-L <something>,-5" for 5 lines ending at
* <something>.
*/
if (1 < begin && (spec[0] == '+' || spec[0] == '-')) {
if (1 <= begin && (spec[0] == '+' || spec[0] == '-')) {
num = strtol(spec + 1, &term, 10);
if (term != spec + 1) {
if (!ret)
return term;
if (num == 0)
die("-L invalid empty range");
if (spec[0] == '-')
num = 0 - num;
if (0 < num)

View File

@ -185,6 +185,14 @@ 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 ,+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
'
@ -193,6 +201,14 @@ 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
'
@ -225,10 +241,32 @@ 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) &&
test_must_fail $PROG -L,$n file
'
test_expect_success 'blame -L ,Y (Y > nlines)' '
test_must_fail $PROG -L,12345 file
'
@ -275,12 +313,102 @@ test_expect_success 'blame -L :nomatch' '
test_must_fail $PROG -L:nomatch hello.c
'
test_expect_success 'blame -L bogus' '
test_must_fail $PROG -L file &&
test_must_fail $PROG -L1,+ file &&
test_must_fail $PROG -L1,- file &&
test_must_fail $PROG -LX file &&
test_must_fail $PROG -L1,X file &&
test_must_fail $PROG -L1,+N file &&
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 (undocumented)' '
check_count -h HEAD^^ -f incremental -L0
'
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 (undocumented)' '
check_count -h HEAD^ -f incremental -L0 I 1
'
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 (undocumented)' '
check_count -f incremental -L0 I 1
'
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
'

View File

@ -64,17 +64,34 @@ test_bad_opts "-L 1,1000:b.c" "has only.*lines"
test_bad_opts "-L :b.c" "argument.*not of the form"
test_bad_opts "-L :foo:b.c" "no match"
# There is a separate bug when an empty -L range is the first -L encountered,
# thus to demonstrate this particular bug, the empty -L range must follow a
# non-empty -L range.
test_expect_success '-L {empty-range} (any -L)' '
n=$(expr $(wc -l <b.c) + 1) &&
git log -L1,1:b.c -L$n:b.c
test_expect_success '-L X (X == nlines)' '
n=$(wc -l <b.c) &&
git log -L $n:b.c
'
test_expect_success '-L {empty-range} (first -L)' '
test_expect_success '-L X (X == nlines + 1)' '
n=$(expr $(wc -l <b.c) + 1) &&
git log -L$n:b.c
test_must_fail git log -L $n:b.c
'
test_expect_success '-L X (X == nlines + 2)' '
n=$(expr $(wc -l <b.c) + 2) &&
test_must_fail git log -L $n:b.c
'
test_expect_success '-L ,Y (Y == nlines)' '
n=$(printf "%d" $(wc -l <b.c)) &&
git log -L ,$n:b.c
'
test_expect_success '-L ,Y (Y == nlines + 1)' '
n=$(expr $(wc -l <b.c) + 1) &&
test_must_fail git log -L ,$n:b.c
'
test_expect_success '-L ,Y (Y == nlines + 2)' '
n=$(expr $(wc -l <b.c) + 2) &&
test_must_fail git log -L ,$n:b.c
'
test_done