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Merge branch 'rs/strbuf-expand-bad-format'

Browse Source 
Code clean-up.

* rs/strbuf-expand-bad-format:
  cat-file: use strbuf_expand_bad_format()
  factor out strbuf_expand_bad_format()
This commit is contained in:
Junio C Hamano 2024-04-03 10:56:20 -07:00
commit 4cc302e886
5 changed files with 35 additions and 26 deletions
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16
builtin/cat-file.c
View File

@ -314,8 +314,8 @@ static int is_atom(const char *atom, const char *s, int slen)
return alen == slen && !memcmp(atom, s, alen);
}
static void expand_atom(struct strbuf *sb, const char *atom, int len,
struct expand_data *data)
static int expand_atom(struct strbuf *sb, const char *atom, int len,
struct expand_data *data)
{
if (is_atom("objectname", atom, len)) {
if (!data->mark_query)
@ -347,7 +347,8 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len,
strbuf_addstr(sb,
oid_to_hex(&data->delta_base_oid));
} else
die("unknown format element: %.*s", len, atom);
return 0;
return 1;
}
static void expand_format(struct strbuf *sb, const char *start,
@ -358,12 +359,11 @@ static void expand_format(struct strbuf *sb, const char *start,
if (skip_prefix(start, "%", &start) || *start != '(')
strbuf_addch(sb, '%');
else if (!(end = strchr(start + 1, ')')))
die("format element '%s' does not end in ')'", start);
else {
expand_atom(sb, start + 1, end - start - 1, data);
else if ((end = strchr(start + 1, ')')) &&
expand_atom(sb, start + 1, end - start - 1, data))
start = end + 1;
}
else
strbuf_expand_bad_format(start, "cat-file");
}
}

10
builtin/ls-files.c
View File

@ -266,7 +266,6 @@ static void show_ce_fmt(struct repository *repo, const struct cache_entry *ce,
struct strbuf sb = STRBUF_INIT;
while (strbuf_expand_step(&sb, &format)) {
const char *end;
size_t len;
struct stat st;
@ -274,12 +273,6 @@ static void show_ce_fmt(struct repository *repo, const struct cache_entry *ce,
strbuf_addch(&sb, '%');
else if ((len = strbuf_expand_literal(&sb, format)))
format += len;
else if (*format != '(')
die(_("bad ls-files format: element '%s' "
"does not start with '('"), format);
else if (!(end = strchr(format + 1, ')')))
die(_("bad ls-files format: element '%s' "
"does not end in ')'"), format);
else if (skip_prefix(format, "(objectmode)", &format))
strbuf_addf(&sb, "%06o", ce->ce_mode);
else if (skip_prefix(format, "(objectname)", &format))
@ -308,8 +301,7 @@ static void show_ce_fmt(struct repository *repo, const struct cache_entry *ce,
else if (skip_prefix(format, "(path)", &format))
write_name_to_buf(&sb, fullname);
else
die(_("bad ls-files format: %%%.*s"),
(int)(end - format + 1), format);
strbuf_expand_bad_format(format, "ls-files");
}
strbuf_addch(&sb, line_terminator);
fwrite(sb.buf, sb.len, 1, stdout);

10
builtin/ls-tree.c
View File

@ -100,19 +100,12 @@ static int show_tree_fmt(const struct object_id *oid, struct strbuf *base,
return 0;
while (strbuf_expand_step(&sb, &format)) {
const char *end;
size_t len;
if (skip_prefix(format, "%", &format))
strbuf_addch(&sb, '%');
else if ((len = strbuf_expand_literal(&sb, format)))
format += len;
else if (*format != '(')
die(_("bad ls-tree format: element '%s' "
"does not start with '('"), format);
else if (!(end = strchr(format + 1, ')')))
die(_("bad ls-tree format: element '%s' "
"does not end in ')'"), format);
else if (skip_prefix(format, "(objectmode)", &format))
strbuf_addf(&sb, "%06o", mode);
else if (skip_prefix(format, "(objecttype)", &format))
@ -135,8 +128,7 @@ static int show_tree_fmt(const struct object_id *oid, struct strbuf *base,
strbuf_setlen(base, baselen);
strbuf_release(&sbuf);
} else
die(_("bad ls-tree format: %%%.*s"),
(int)(end - format + 1), format);
strbuf_expand_bad_format(format, "ls-tree");
}
strbuf_addch(&sb, options->null_termination ? '\0' : '\n');
fwrite(sb.buf, sb.len, 1, stdout);

20
strbuf.c
View File

@ -442,6 +442,26 @@ size_t strbuf_expand_literal(struct strbuf *sb, const char *placeholder)
return 0;
}
void strbuf_expand_bad_format(const char *format, const char *command)
{
const char *end;
if (*format != '(')
/* TRANSLATORS: The first %s is a command like "ls-tree". */
die(_("bad %s format: element '%s' does not start with '('"),
command, format);
end = strchr(format + 1, ')');
if (!end)
/* TRANSLATORS: The first %s is a command like "ls-tree". */
die(_("bad %s format: element '%s' does not end in ')'"),
command, format);
/* TRANSLATORS: %s is a command like "ls-tree". */
die(_("bad %s format: %%%.*s"),
command, (int)(end - format + 1), format);
}
void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src)
{
size_t i, len = src->len;

5
strbuf.h
View File

@ -337,6 +337,11 @@ size_t strbuf_expand_literal(struct strbuf *sb, const char *placeholder);
*/
int strbuf_expand_step(struct strbuf *sb, const char **formatp);
/**
* Used with `strbuf_expand_step` to report unknown placeholders.
*/
void strbuf_expand_bad_format(const char *format, const char *command);
/**
* Append the contents of one strbuf to another, quoting any
* percent signs ("%") into double-percents ("%%") in the