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split: Improve GNU compatibility.

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* Like GNU split, turn autoextend back on if given -a0.
* Add a test case that verifies that -a<non-zero> turns autoextend off.
* Add a test case that verifies that -a0 turns autoextend back on.

Sponsored by:	Klara, Inc.
Reviewed by:	christos, kevans
Differential Revision:	https://reviews.freebsd.org/D42011
This commit is contained in:
Dag-Erling Smørgrav 2023-09-28 18:30:00 +02:00
parent d7399551b0
commit d9d69a6f6f
2 changed files with 25 additions and 1 deletions
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7
usr.bin/split/split.c
View file

@ -115,7 +115,12 @@ main(int argc, char **argv)
errx(EX_USAGE, "%s: suffix length is %s",
optarg, errstr);
}
autosfx = false;
if (sufflen == 0) {
sufflen = 2;
autosfx = true;
} else {
autosfx = false;
}
break;
case 'b': /* Byte count. */
if (expand_number(optarg, &bytecnt) != 0) {

19
usr.bin/split/tests/split_test.sh
View file

@ -209,6 +209,23 @@ autoextend_body()
atf_check -o inline:"$((26*25+1))\n" cat xzaaa
}
atf_test_case noautoextend
noautoextend_body()
{
seq $((26*26)) >input
atf_check split -a2 -l1 input
atf_check -o inline:"$((26*26))\n" cat xzz
}
atf_test_case reautoextend
reautoextend_body()
{
seq $((26*25+1)) >input
atf_check split -a2 -a0 -l1 input
atf_check -o inline:"$((26*25))\n" cat xyz
atf_check -o inline:"$((26*25+1))\n" cat xzaaa
}
atf_test_case continue
continue_body()
{
@ -249,6 +266,8 @@ atf_init_test_cases()
atf_add_test_case larger_suffix_length
atf_add_test_case pattern
atf_add_test_case autoextend
atf_add_test_case noautoextend
atf_add_test_case reautoextend
atf_add_test_case continue
atf_add_test_case undocumented_kludge
atf_add_test_case duplicate_linecount