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git/t/t4211-line-log.sh
Jeff King 05314efaea line-log: detect unsupported formats
If you use "log -L" with an output format like "--raw" or "--stat",
we'll silently ignore the format and just output the normal patch.
Let's detect and complain about this, which at least tells the user
what's going on.

The tests here aren't exhaustive over the set of all formats, but it
should at least let us know if somebody breaks the format-checking.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-11 16:31:07 +09:00

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#!/bin/sh
test_description='test log -L'
. ./test-lib.sh
test_expect_success 'setup (import history)' '
git fast-import < "$TEST_DIRECTORY"/t4211/history.export &&
git reset --hard
'
canned_test_1 () {
test_expect_$1 "$2" "
git log $2 >actual &&
test_cmp \"\$TEST_DIRECTORY\"/t4211/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; 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_done