git/t/t4211-line-log.sh
Eric Sunshine cbe1d9d630 t4000-t4999: detect and signal failure within loop
Failures within `for` and `while` loops can go unnoticed if not detected
and signaled manually since the loop itself does not abort when a
contained command fails, nor will a failure necessarily be detected when
the loop finishes since the loop returns the exit code of the last
command it ran on the final iteration, which may not be the command
which failed. Therefore, detect and signal failures manually within
loops using the idiom `|| return 1` (or `|| exit 1` within subshells).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13 10:29:48 -08:00

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#!/bin/sh
test_description='test log -L'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
test_expect_success 'setup (import history)' '
git fast-import < "$TEST_DIRECTORY"/t4211/history.export &&
git reset --hard
'
test_expect_success 'basic command line parsing' '
# This may fail due to "no such path a.c in commit", or
# "-L is incompatible with pathspec", depending on the
# order the error is checked. Either is acceptable.
test_must_fail git log -L1,1:a.c -- a.c &&
# -L requires there is no pathspec
test_must_fail git log -L1,1:b.c -- b.c 2>error &&
test_i18ngrep "cannot be used with pathspec" error &&
# This would fail because --follow wants a single path, but
# we may fail due to incompatibility between -L/--follow in
# the future. Either is acceptable.
test_must_fail git log -L1,1:b.c --follow &&
test_must_fail git log --follow -L1,1:b.c &&
# This would fail because -L wants no pathspec, but
# we may fail due to incompatibility between -L/--follow in
# the future. Either is acceptable.
test_must_fail git log --follow -L1,1:b.c -- b.c
'
canned_test_1 () {
test_expect_$1 "$2" "
git log $2 >actual &&
test_cmp \"\$TEST_DIRECTORY\"/t4211/$(test_oid algo)/expect.$3 actual
"
}
canned_test () {
canned_test_1 success "$@"
}
canned_test_failure () {
canned_test_1 failure "$@"
}
test_bad_opts () {
test_expect_success "invalid args: $1" "
test_must_fail git log $1 2>errors &&
test_i18ngrep '$2' errors
"
}
canned_test "-L 4,12:a.c simple" simple-f
canned_test "-L 4,+9:a.c simple" simple-f
canned_test "-L '/long f/,/^}/:a.c' simple" simple-f
canned_test "-L :f:a.c simple" simple-f-to-main
canned_test "-L '/main/,/^}/:a.c' simple" simple-main
canned_test "-L :main:a.c simple" simple-main-to-end
canned_test "-L 1,+4:a.c simple" beginning-of-file
canned_test "-L 20:a.c simple" end-of-file
canned_test "-L '/long f/',/^}/:a.c -L /main/,/^}/:a.c simple" two-ranges
canned_test "-L 24,+1:a.c simple" vanishes-early
canned_test "-M -L '/long f/,/^}/:b.c' move-support" move-support-f
canned_test "-M -L ':f:b.c' parallel-change" parallel-change-f-to-main
canned_test "-L 4,12:a.c -L :main:a.c simple" multiple
canned_test "-L 4,18:a.c -L ^:main:a.c simple" multiple-overlapping
canned_test "-L :main:a.c -L 4,18:a.c simple" multiple-overlapping
canned_test "-L 4:a.c -L 8,12:a.c simple" multiple-superset
canned_test "-L 8,12:a.c -L 4:a.c simple" multiple-superset
test_bad_opts "-L" "switch.*requires a value"
test_bad_opts "-L b.c" "argument not .start,end:file"
test_bad_opts "-L 1:" "argument not .start,end:file"
test_bad_opts "-L 1:nonexistent" "There is no path"
test_bad_opts "-L 1:simple" "There is no path"
test_bad_opts "-L '/foo:b.c'" "argument not .start,end:file"
test_bad_opts "-L 1000:b.c" "has only.*lines"
test_bad_opts "-L :b.c" "argument not .start,end:file"
test_bad_opts "-L :foo:b.c" "no match"
test_expect_success '-L X (X == nlines)' '
n=$(wc -l <b.c) &&
git log -L $n:b.c
'
test_expect_success '-L X (X == nlines + 1)' '
n=$(expr $(wc -l <b.c) + 1) &&
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 $(wc -l <b.c) + 1) &&
git log -L ,$n:b.c
'
test_expect_success '-L ,Y (Y == nlines + 2)' '
n=$(expr $(wc -l <b.c) + 2) &&
git log -L ,$n:b.c
'
test_expect_success '-L with --first-parent and a merge' '
git checkout parallel-change &&
git log --first-parent -L 1,1:b.c
'
test_expect_success '-L with --output' '
git checkout parallel-change &&
git log --output=log -L :main:b.c >output &&
test_must_be_empty output &&
test_line_count = 70 log
'
test_expect_success 'range_set_union' '
test_seq 500 > c.c &&
git add c.c &&
git commit -m "many lines" &&
test_seq 1000 > c.c &&
git add c.c &&
git commit -m "modify many lines" &&
git log $(for x in $(test_seq 200); do echo -L $((2*x)),+1:c.c || return 1; done)
'
test_expect_success '-s shows only line-log commits' '
git log --format="commit %s" -L1,24:b.c >expect.raw &&
grep ^commit expect.raw >expect &&
git log --format="commit %s" -L1,24:b.c -s >actual &&
test_cmp expect actual
'
test_expect_success '-p shows the default patch output' '
git log -L1,24:b.c >expect &&
git log -L1,24:b.c -p >actual &&
test_cmp expect actual
'
test_expect_success '--raw is forbidden' '
test_must_fail git log -L1,24:b.c --raw
'
test_expect_success 'setup for checking fancy rename following' '
git checkout --orphan moves-start &&
git reset --hard &&
printf "%s\n" 12 13 14 15 b c d e >file-1 &&
printf "%s\n" 22 23 24 25 B C D E >file-2 &&
git add file-1 file-2 &&
test_tick &&
git commit -m "Add file-1 and file-2" &&
oid_add_f1_f2=$(git rev-parse --short HEAD) &&
git checkout -b moves-main &&
printf "%s\n" 11 12 13 14 15 b c d e >file-1 &&
git commit -a -m "Modify file-1 on main" &&
oid_mod_f1_main=$(git rev-parse --short HEAD) &&
printf "%s\n" 21 22 23 24 25 B C D E >file-2 &&
git commit -a -m "Modify file-2 on main #1" &&
oid_mod_f2_main_1=$(git rev-parse --short HEAD) &&
git mv file-1 renamed-1 &&
git commit -m "Rename file-1 to renamed-1 on main" &&
printf "%s\n" 11 12 13 14 15 b c d e f >renamed-1 &&
git commit -a -m "Modify renamed-1 on main" &&
oid_mod_r1_main=$(git rev-parse --short HEAD) &&
printf "%s\n" 21 22 23 24 25 B C D E F >file-2 &&
git commit -a -m "Modify file-2 on main #2" &&
oid_mod_f2_main_2=$(git rev-parse --short HEAD) &&
git checkout -b moves-side moves-start &&
printf "%s\n" 12 13 14 15 16 b c d e >file-1 &&
git commit -a -m "Modify file-1 on side #1" &&
oid_mod_f1_side_1=$(git rev-parse --short HEAD) &&
printf "%s\n" 22 23 24 25 26 B C D E >file-2 &&
git commit -a -m "Modify file-2 on side" &&
oid_mod_f2_side=$(git rev-parse --short HEAD) &&
git mv file-2 renamed-2 &&
git commit -m "Rename file-2 to renamed-2 on side" &&
printf "%s\n" 12 13 14 15 16 a b c d e >file-1 &&
git commit -a -m "Modify file-1 on side #2" &&
oid_mod_f1_side_2=$(git rev-parse --short HEAD) &&
printf "%s\n" 22 23 24 25 26 A B C D E >renamed-2 &&
git commit -a -m "Modify renamed-2 on side" &&
oid_mod_r2_side=$(git rev-parse --short HEAD) &&
git checkout moves-main &&
git merge moves-side &&
oid_merge=$(git rev-parse --short HEAD)
'
test_expect_success 'fancy rename following #1' '
cat >expect <<-EOF &&
$oid_merge Merge branch '\''moves-side'\'' into moves-main
$oid_mod_f1_side_2 Modify file-1 on side #2
$oid_mod_f1_side_1 Modify file-1 on side #1
$oid_mod_r1_main Modify renamed-1 on main
$oid_mod_f1_main Modify file-1 on main
$oid_add_f1_f2 Add file-1 and file-2
EOF
git log -L1:renamed-1 --oneline --no-patch >actual &&
test_cmp expect actual
'
test_expect_success 'fancy rename following #2' '
cat >expect <<-EOF &&
$oid_merge Merge branch '\''moves-side'\'' into moves-main
$oid_mod_r2_side Modify renamed-2 on side
$oid_mod_f2_side Modify file-2 on side
$oid_mod_f2_main_2 Modify file-2 on main #2
$oid_mod_f2_main_1 Modify file-2 on main #1
$oid_add_f1_f2 Add file-1 and file-2
EOF
git log -L1:renamed-2 --oneline --no-patch >actual &&
test_cmp expect actual
'
# Create the following linear history, where each commit does what its
# subject line promises:
#
# * 66c6410 Modify func2() in file.c
# * 50834e5 Modify other-file
# * fe5851c Modify func1() in file.c
# * 8c7c7dd Add other-file
# * d5f4417 Add func1() and func2() in file.c
test_expect_success 'setup for checking line-log and parent oids' '
git checkout --orphan parent-oids &&
git reset --hard &&
cat >file.c <<-\EOF &&
int func1()
{
return F1;
}
int func2()
{
return F2;
}
EOF
git add file.c &&
test_tick &&
first_tick=$test_tick &&
git commit -m "Add func1() and func2() in file.c" &&
echo 1 >other-file &&
git add other-file &&
test_tick &&
git commit -m "Add other-file" &&
sed -e "s/F1/F1 + 1/" file.c >tmp &&
mv tmp file.c &&
git commit -a -m "Modify func1() in file.c" &&
echo 2 >other-file &&
git commit -a -m "Modify other-file" &&
sed -e "s/F2/F2 + 2/" file.c >tmp &&
mv tmp file.c &&
git commit -a -m "Modify func2() in file.c" &&
head_oid=$(git rev-parse --short HEAD) &&
prev_oid=$(git rev-parse --short HEAD^) &&
root_oid=$(git rev-parse --short HEAD~4)
'
# Parent oid should be from immediate parent.
test_expect_success 'parent oids without parent rewriting' '
cat >expect <<-EOF &&
$head_oid $prev_oid Modify func2() in file.c
$root_oid Add func1() and func2() in file.c
EOF
git log --format="%h %p %s" --no-patch -L:func2:file.c >actual &&
test_cmp expect actual
'
# Parent oid should be from the most recent ancestor touching func2(),
# i.e. in this case from the root commit.
test_expect_success 'parent oids with parent rewriting' '
cat >expect <<-EOF &&
$head_oid $root_oid Modify func2() in file.c
$root_oid Add func1() and func2() in file.c
EOF
git log --format="%h %p %s" --no-patch -L:func2:file.c --parents >actual &&
test_cmp expect actual
'
test_expect_success 'line-log with --before' '
echo $root_oid >expect &&
git log --format=%h --no-patch -L:func2:file.c --before=$first_tick >actual &&
test_cmp expect actual
'
test_done