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-rw-r--r--grep.c103
1 files changed, 70 insertions, 33 deletions
diff --git a/grep.c b/grep.c
index 2efec0e182..45ec7e636c 100644
--- a/grep.c
+++ b/grep.c
@@ -18,6 +18,11 @@ static void std_output(struct grep_opt *opt, const void *buf, size_t size)
fwrite(buf, size, 1, stdout);
}
+static void color_set(char *dst, const char *color_bytes)
+{
+ xsnprintf(dst, COLOR_MAXLEN, "%s", color_bytes);
+}
+
/*
* Initialize the grep_defaults template with hardcoded defaults.
* We could let the compiler do this, but without C99 initializers
@@ -387,7 +392,7 @@ static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
if (!p->pcre1_regexp)
compile_regexp_failed(p, error);
- p->pcre1_extra_info = pcre_study(p->pcre1_regexp, PCRE_STUDY_JIT_COMPILE, &error);
+ p->pcre1_extra_info = pcre_study(p->pcre1_regexp, GIT_PCRE_STUDY_JIT_COMPILE, &error);
if (!p->pcre1_extra_info && error)
die("%s", error);
@@ -399,7 +404,7 @@ static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
die("Couldn't allocate PCRE JIT stack");
pcre_assign_jit_stack(p->pcre1_extra_info, NULL, p->pcre1_jit_stack);
} else if (p->pcre1_jit_on != 0) {
- die("BUG: The pcre1_jit_on variable should be 0 or 1, not %d",
+ BUG("The pcre1_jit_on variable should be 0 or 1, not %d",
p->pcre1_jit_on);
}
#endif
@@ -477,6 +482,8 @@ static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt
int options = PCRE2_MULTILINE;
const uint8_t *character_tables = NULL;
int jitret;
+ int patinforet;
+ size_t jitsizearg;
assert(opt->pcre2);
@@ -511,6 +518,30 @@ static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt
jitret = pcre2_jit_compile(p->pcre2_pattern, PCRE2_JIT_COMPLETE);
if (jitret)
die("Couldn't JIT the PCRE2 pattern '%s', got '%d'\n", p->pattern, jitret);
+
+ /*
+ * The pcre2_config(PCRE2_CONFIG_JIT, ...) call just
+ * tells us whether the library itself supports JIT,
+ * but to see whether we're going to be actually using
+ * JIT we need to extract PCRE2_INFO_JITSIZE from the
+ * pattern *after* we do pcre2_jit_compile() above.
+ *
+ * This is because if the pattern contains the
+ * (*NO_JIT) verb (see pcre2syntax(3))
+ * pcre2_jit_compile() will exit early with 0. If we
+ * then proceed to call pcre2_jit_match() further down
+ * the line instead of pcre2_match() we'll either
+ * segfault (pre PCRE 10.31) or run into a fatal error
+ * (post PCRE2 10.31)
+ */
+ patinforet = pcre2_pattern_info(p->pcre2_pattern, PCRE2_INFO_JITSIZE, &jitsizearg);
+ if (patinforet)
+ BUG("pcre2_pattern_info() failed: %d", patinforet);
+ if (jitsizearg == 0) {
+ p->pcre2_jit_on = 0;
+ return;
+ }
+
p->pcre2_jit_stack = pcre2_jit_stack_create(1, 1024 * 1024, NULL);
if (!p->pcre2_jit_stack)
die("Couldn't allocate PCRE2 JIT stack");
@@ -519,7 +550,7 @@ static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt
die("Couldn't allocate PCRE2 match context");
pcre2_jit_stack_assign(p->pcre2_match_context, NULL, p->pcre2_jit_stack);
} else if (p->pcre2_jit_on != 0) {
- die("BUG: The pcre2_jit_on variable should be 0 or 1, not %d",
+ BUG("The pcre2_jit_on variable should be 0 or 1, not %d",
p->pcre1_jit_on);
}
}
@@ -605,7 +636,6 @@ static void compile_fixed_regexp(struct grep_pat *p, struct grep_opt *opt)
if (err) {
char errbuf[1024];
regerror(err, &p->regexp, errbuf, sizeof(errbuf));
- regfree(&p->regexp);
compile_regexp_failed(p, errbuf);
}
}
@@ -670,7 +700,6 @@ static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
if (err) {
char errbuf[1024];
regerror(err, &p->regexp, errbuf, 1024);
- regfree(&p->regexp);
compile_regexp_failed(p, errbuf);
}
}
@@ -886,10 +915,10 @@ static struct grep_expr *prep_header_patterns(struct grep_opt *opt)
for (p = opt->header_list; p; p = p->next) {
if (p->token != GREP_PATTERN_HEAD)
- die("BUG: a non-header pattern in grep header list.");
+ BUG("a non-header pattern in grep header list.");
if (p->field < GREP_HEADER_FIELD_MIN ||
GREP_HEADER_FIELD_MAX <= p->field)
- die("BUG: unknown header field %d", p->field);
+ BUG("unknown header field %d", p->field);
compile_regexp(p, opt);
}
@@ -902,7 +931,7 @@ static struct grep_expr *prep_header_patterns(struct grep_opt *opt)
h = compile_pattern_atom(&pp);
if (!h || pp != p->next)
- die("BUG: malformed header expr");
+ BUG("malformed header expr");
if (!header_group[p->field]) {
header_group[p->field] = h;
continue;
@@ -1476,31 +1505,52 @@ static void show_funcname_line(struct grep_opt *opt, struct grep_source *gs,
}
}
+static int is_empty_line(const char *bol, const char *eol);
+
static void show_pre_context(struct grep_opt *opt, struct grep_source *gs,
char *bol, char *end, unsigned lno)
{
- unsigned cur = lno, from = 1, funcname_lno = 0;
- int funcname_needed = !!opt->funcname;
-
- if (opt->funcbody && !match_funcname(opt, gs, bol, end))
- funcname_needed = 2;
+ unsigned cur = lno, from = 1, funcname_lno = 0, orig_from;
+ int funcname_needed = !!opt->funcname, comment_needed = 0;
if (opt->pre_context < lno)
from = lno - opt->pre_context;
if (from <= opt->last_shown)
from = opt->last_shown + 1;
+ orig_from = from;
+ if (opt->funcbody) {
+ if (match_funcname(opt, gs, bol, end))
+ comment_needed = 1;
+ else
+ funcname_needed = 1;
+ from = opt->last_shown + 1;
+ }
/* Rewind. */
- while (bol > gs->buf &&
- cur > (funcname_needed == 2 ? opt->last_shown + 1 : from)) {
+ while (bol > gs->buf && cur > from) {
+ char *next_bol = bol;
char *eol = --bol;
while (bol > gs->buf && bol[-1] != '\n')
bol--;
cur--;
+ if (comment_needed && (is_empty_line(bol, eol) ||
+ match_funcname(opt, gs, bol, eol))) {
+ comment_needed = 0;
+ from = orig_from;
+ if (cur < from) {
+ cur++;
+ bol = next_bol;
+ break;
+ }
+ }
if (funcname_needed && match_funcname(opt, gs, bol, eol)) {
funcname_lno = cur;
funcname_needed = 0;
+ if (opt->funcbody)
+ comment_needed = 1;
+ else
+ from = orig_from;
}
}
@@ -1600,7 +1650,7 @@ static int fill_textconv_grep(struct userdiff_driver *driver,
fill_filespec(df, &null_oid, 0, 0100644);
break;
default:
- die("BUG: attempt to textconv something without a path?");
+ BUG("attempt to textconv something without a path?");
}
/*
@@ -1696,7 +1746,7 @@ static int grep_source_1(struct grep_opt *opt, struct grep_source *gs, int colle
case GREP_BINARY_TEXT:
break;
default:
- die("BUG: unknown binary handling mode");
+ BUG("unknown binary handling mode");
}
}
@@ -1821,7 +1871,7 @@ static int grep_source_1(struct grep_opt *opt, struct grep_source *gs, int colle
return 0;
if (opt->status_only)
- return 0;
+ return opt->unmatch_name_only;
if (opt->unmatch_name_only) {
/* We did not see any hit, so we want to show this */
show_name(opt, gs->name);
@@ -1927,16 +1977,6 @@ void grep_source_init(struct grep_source *gs, enum grep_source_type type,
case GREP_SOURCE_FILE:
gs->identifier = xstrdup(identifier);
break;
- case GREP_SOURCE_SUBMODULE:
- if (!identifier) {
- gs->identifier = NULL;
- break;
- }
- /*
- * FALL THROUGH
- * If the identifier is non-NULL (in the submodule case) it
- * will be a SHA1 that needs to be copied.
- */
case GREP_SOURCE_OID:
gs->identifier = oiddup(identifier);
break;
@@ -1959,7 +1999,6 @@ void grep_source_clear_data(struct grep_source *gs)
switch (gs->type) {
case GREP_SOURCE_FILE:
case GREP_SOURCE_OID:
- case GREP_SOURCE_SUBMODULE:
FREE_AND_NULL(gs->buf);
gs->size = 0;
break;
@@ -1974,7 +2013,7 @@ static int grep_source_load_oid(struct grep_source *gs)
enum object_type type;
grep_read_lock();
- gs->buf = read_sha1_file(gs->identifier, &type, &gs->size);
+ gs->buf = read_object_file(gs->identifier, &type, &gs->size);
grep_read_unlock();
if (!gs->buf)
@@ -2030,10 +2069,8 @@ static int grep_source_load(struct grep_source *gs)
return grep_source_load_oid(gs);
case GREP_SOURCE_BUF:
return gs->buf ? 0 : -1;
- case GREP_SOURCE_SUBMODULE:
- break;
}
- die("BUG: invalid grep_source type to load");
+ BUG("invalid grep_source type to load");
}
void grep_source_load_driver(struct grep_source *gs)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 05:30:12 +0000