Garima Singh <garimasigit@xxxxxxxxx> writes:
>> diff --git a/quote.c b/quote.c
>> index 7f2aa6faa4..6d0f8a22a9 100644
>> --- a/quote.c
>> +++ b/quote.c
>> @@ -48,6 +48,18 @@ void sq_quote_buf_pretty(struct strbuf *dst, const char *src)
>> static const char ok_punct[] = "+,-./:=@_^";
>> const char *p;
>>
>> + /* In case of null tokens, warn the user of the BUG in their call. */
>> + if (!src)
>> + BUG("BUG can't append a NULL token to the buffer");
I thought that the BUG() macro already says "BUG" upfront, no?
Dereferencing to see if we have an empty string below will
immediately give us segfault, so I would omit this check if I were
writing this code, though.
>> + /* In case of empty tokens, add a '' to ensure they
>> + * don't get inadvertently dropped.
>> + */
Our multi-line comments have the opening slash-asterisk and the
closing asterisk-slash on their own lines.
But more importantly, "In case of empty tokens, add a ''" in this
comment has zero information contents---you can read that from the
code. Why we do that is what we cannot express in the code, and
deserves a comment.
/* avoid losing a zero-length string by giving nothing */
or something like that, perhaps?
>> + if (!*src) {
>> + strbuf_addstr(dst, "''");
>> + return;
>> + }
>> +
>> for (p = src; *p; p++) {
>> if (!isalpha(*p) && !isdigit(*p) && !strchr(ok_punct, *p)) {
>> sq_quote_buf(dst, src);
>> diff --git a/t/t0014-alias.sh b/t/t0014-alias.sh
>> index a070e645d7..9c176c7cbb 100755
>> --- a/t/t0014-alias.sh
>> +++ b/t/t0014-alias.sh
>> @@ -37,4 +37,12 @@ test_expect_success 'looping aliases - internal execution' '
>> # test_i18ngrep "^fatal: alias loop detected: expansion of" output
>> #'
>>
>> +test_expect_success 'run-command parses empty args properly, using sq_quote_buf_pretty' '
>> + cat >expect <<-EOF &&
>> + fatal: cannot change to '\''alias.foo=frotz foo '\'''\'' bar'\'': No such file or directory
>> + EOF
>> + test_expect_code 128 git -C "alias.foo=frotz foo '\'''\'' bar" foo 2>actual &&
>> + test_cmp expect actual
>> +'
I think it was my mistake, but we do not ahe to use "alias" for
something like this, perhaps like:
# 'git frotz' will fail with "no such command", but we are
# not interested in its exit status. We just want to see
# how sq_quote_argv_pretty() shows arguments in the trace.
GIT_TRACE=1 git frotz a "" b " " c 2>&1 |
sed -ne "/run_command:/s/.*trace: run_command: //p" >actual &&
echo "git-frotz a '' b ' ' c" >expect &&
test_cmp expect actual
>> +
>> test_done
>> --
>> gitgitgadget
