#include "cache.h"
+#include "config.h"
#include "grep.h"
+#include "object-store.h"
#include "userdiff.h"
#include "xdiff-interface.h"
#include "diff.h"
#include "diffcore.h"
#include "commit.h"
#include "quote.h"
+#include "help.h"
static int grep_source_load(struct grep_source *gs);
static int grep_source_is_binary(struct grep_source *gs);
static struct grep_opt grep_defaults;
+static const char *color_grep_slots[] = {
+ [GREP_COLOR_CONTEXT] = "context",
+ [GREP_COLOR_FILENAME] = "filename",
+ [GREP_COLOR_FUNCTION] = "function",
+ [GREP_COLOR_LINENO] = "lineNumber",
+ [GREP_COLOR_MATCH_CONTEXT] = "matchContext",
+ [GREP_COLOR_MATCH_SELECTED] = "matchSelected",
+ [GREP_COLOR_SELECTED] = "selected",
+ [GREP_COLOR_SEP] = "separator",
+};
+
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
memset(opt, 0, sizeof(*opt));
opt->relative = 1;
opt->pathname = 1;
- opt->regflags = REG_NEWLINE;
opt->max_depth = -1;
opt->pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED;
- opt->extended_regexp_option = 0;
- color_set(opt->color_context, "");
- color_set(opt->color_filename, "");
- color_set(opt->color_function, "");
- color_set(opt->color_lineno, "");
- color_set(opt->color_match_context, GIT_COLOR_BOLD_RED);
- color_set(opt->color_match_selected, GIT_COLOR_BOLD_RED);
- color_set(opt->color_selected, "");
- color_set(opt->color_sep, GIT_COLOR_CYAN);
+ color_set(opt->colors[GREP_COLOR_CONTEXT], "");
+ color_set(opt->colors[GREP_COLOR_FILENAME], "");
+ color_set(opt->colors[GREP_COLOR_FUNCTION], "");
+ color_set(opt->colors[GREP_COLOR_LINENO], "");
+ color_set(opt->colors[GREP_COLOR_MATCH_CONTEXT], GIT_COLOR_BOLD_RED);
+ color_set(opt->colors[GREP_COLOR_MATCH_SELECTED], GIT_COLOR_BOLD_RED);
+ color_set(opt->colors[GREP_COLOR_SELECTED], "");
+ color_set(opt->colors[GREP_COLOR_SEP], GIT_COLOR_CYAN);
opt->color = -1;
opt->output = std_output;
}
die("bad %s argument: %s", opt, arg);
}
+define_list_config_array_extra(color_grep_slots, {"match"});
+
/*
* Read the configuration file once and store it in
* the grep_defaults template.
int grep_config(const char *var, const char *value, void *cb)
{
struct grep_opt *opt = &grep_defaults;
- char *color = NULL;
+ const char *slot;
if (userdiff_config(var, value) < 0)
return -1;
if (!strcmp(var, "grep.extendedregexp")) {
- if (git_config_bool(var, value))
- opt->extended_regexp_option = 1;
- else
- opt->extended_regexp_option = 0;
+ opt->extended_regexp_option = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "color.grep"))
opt->color = git_config_colorbool(var, value);
- else if (!strcmp(var, "color.grep.context"))
- color = opt->color_context;
- else if (!strcmp(var, "color.grep.filename"))
- color = opt->color_filename;
- else if (!strcmp(var, "color.grep.function"))
- color = opt->color_function;
- else if (!strcmp(var, "color.grep.linenumber"))
- color = opt->color_lineno;
- else if (!strcmp(var, "color.grep.matchcontext"))
- color = opt->color_match_context;
- else if (!strcmp(var, "color.grep.matchselected"))
- color = opt->color_match_selected;
- else if (!strcmp(var, "color.grep.selected"))
- color = opt->color_selected;
- else if (!strcmp(var, "color.grep.separator"))
- color = opt->color_sep;
- else if (!strcmp(var, "color.grep.match")) {
- int rc = 0;
- if (!value)
- return config_error_nonbool(var);
- rc |= color_parse(value, opt->color_match_context);
- rc |= color_parse(value, opt->color_match_selected);
- return rc;
- }
-
- if (color) {
+ if (!strcmp(var, "color.grep.match")) {
+ if (grep_config("color.grep.matchcontext", value, cb) < 0)
+ return -1;
+ if (grep_config("color.grep.matchselected", value, cb) < 0)
+ return -1;
+ } else if (skip_prefix(var, "color.grep.", &slot)) {
+ int i = LOOKUP_CONFIG(color_grep_slots, slot);
+ char *color;
+
+ if (i < 0)
+ return -1;
+ color = opt->colors[i];
if (!value)
return config_error_nonbool(var);
return color_parse(value, color);
void grep_init(struct grep_opt *opt, const char *prefix)
{
struct grep_opt *def = &grep_defaults;
+ int i;
memset(opt, 0, sizeof(*opt));
opt->prefix = prefix;
opt->linenum = def->linenum;
opt->max_depth = def->max_depth;
opt->pathname = def->pathname;
- opt->regflags = def->regflags;
opt->relative = def->relative;
opt->output = def->output;
- color_set(opt->color_context, def->color_context);
- color_set(opt->color_filename, def->color_filename);
- color_set(opt->color_function, def->color_function);
- color_set(opt->color_lineno, def->color_lineno);
- color_set(opt->color_match_context, def->color_match_context);
- color_set(opt->color_match_selected, def->color_match_selected);
- color_set(opt->color_selected, def->color_selected);
- color_set(opt->color_sep, def->color_sep);
+ for (i = 0; i < NR_GREP_COLORS; i++)
+ color_set(opt->colors[i], def->colors[i]);
}
static void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, struct grep_opt *opt)
{
+ /*
+ * When committing to the pattern type by setting the relevant
+ * fields in grep_opt it's generally not necessary to zero out
+ * the fields we're not choosing, since they won't have been
+ * set by anything. The extended_regexp_option field is the
+ * only exception to this.
+ *
+ * This is because in the process of parsing grep.patternType
+ * & grep.extendedRegexp we set opt->pattern_type_option and
+ * opt->extended_regexp_option, respectively. We then
+ * internally use opt->extended_regexp_option to see if we're
+ * compiling an ERE. It must be unset if that's not actually
+ * the case.
+ */
+ if (pattern_type != GREP_PATTERN_TYPE_ERE &&
+ opt->extended_regexp_option)
+ opt->extended_regexp_option = 0;
+
switch (pattern_type) {
case GREP_PATTERN_TYPE_UNSPECIFIED:
/* fall through */
case GREP_PATTERN_TYPE_BRE:
- opt->fixed = 0;
- opt->pcre1 = 0;
- opt->pcre2 = 0;
break;
case GREP_PATTERN_TYPE_ERE:
- opt->fixed = 0;
- opt->pcre1 = 0;
- opt->pcre2 = 0;
- opt->regflags |= REG_EXTENDED;
+ opt->extended_regexp_option = 1;
break;
case GREP_PATTERN_TYPE_FIXED:
opt->fixed = 1;
- opt->pcre1 = 0;
- opt->pcre2 = 0;
break;
case GREP_PATTERN_TYPE_PCRE:
- opt->fixed = 0;
#ifdef USE_LIBPCRE2
- opt->pcre1 = 0;
opt->pcre2 = 1;
#else
/*
* "cannot use Perl-compatible regexes[...]".
*/
opt->pcre1 = 1;
- opt->pcre2 = 0;
#endif
break;
}
else if (opt->pattern_type_option != GREP_PATTERN_TYPE_UNSPECIFIED)
grep_set_pattern_type_option(opt->pattern_type_option, opt);
else if (opt->extended_regexp_option)
+ /*
+ * This branch *must* happen after setting from the
+ * opt->pattern_type_option above, we don't want
+ * grep.extendedRegexp to override grep.patternType!
+ */
grep_set_pattern_type_option(GREP_PATTERN_TYPE_ERE, 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);
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
int options = PCRE2_MULTILINE;
const uint8_t *character_tables = NULL;
int jitret;
+ int patinforet;
+ size_t jitsizearg;
assert(opt->pcre2);
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");
p->pcre2_match_context = pcre2_match_context_create(NULL);
- if (!p->pcre2_jit_stack)
+ if (!p->pcre2_match_context)
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);
}
}
{
struct strbuf sb = STRBUF_INIT;
int err;
- int regflags = opt->regflags;
+ int regflags = 0;
basic_regex_quote_buf(&sb, p->pattern);
if (opt->ignore_case)
if (err) {
char errbuf[1024];
regerror(err, &p->regexp, errbuf, sizeof(errbuf));
- regfree(&p->regexp);
compile_regexp_failed(p, errbuf);
}
}
static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
{
- int icase, ascii_only;
+ int ascii_only;
int err;
+ int regflags = REG_NEWLINE;
p->word_regexp = opt->word_regexp;
p->ignore_case = opt->ignore_case;
- icase = opt->regflags & REG_ICASE || p->ignore_case;
ascii_only = !has_non_ascii(p->pattern);
/*
if (opt->fixed ||
has_null(p->pattern, p->patternlen) ||
is_fixed(p->pattern, p->patternlen))
- p->fixed = !icase || ascii_only;
- else
- p->fixed = 0;
+ p->fixed = !p->ignore_case || ascii_only;
if (p->fixed) {
- p->kws = kwsalloc(icase ? tolower_trans_tbl : NULL);
+ p->kws = kwsalloc(p->ignore_case ? tolower_trans_tbl : NULL);
kwsincr(p->kws, p->pattern, p->patternlen);
kwsprep(p->kws);
return;
return;
}
- err = regcomp(&p->regexp, p->pattern, opt->regflags);
+ if (p->ignore_case)
+ regflags |= REG_ICASE;
+ if (opt->extended_regexp_option)
+ regflags |= REG_EXTENDED;
+ err = regcomp(&p->regexp, p->pattern, regflags);
if (err) {
char errbuf[1024];
regerror(err, &p->regexp, errbuf, 1024);
- regfree(&p->regexp);
compile_regexp_failed(p, errbuf);
}
}
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);
}
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;
if (opt->null_following_name)
opt->output(opt, "\0", 1);
else
- output_color(opt, &sign, 1, opt->color_sep);
+ output_color(opt, &sign, 1, opt->colors[GREP_COLOR_SEP]);
}
static void show_name(struct grep_opt *opt, const char *name)
{
- output_color(opt, name, strlen(name), opt->color_filename);
+ output_color(opt, name, strlen(name), opt->colors[GREP_COLOR_FILENAME]);
opt->output(opt, opt->null_following_name ? "\0" : "\n", 1);
}
} else if (opt->pre_context || opt->post_context || opt->funcbody) {
if (opt->last_shown == 0) {
if (opt->show_hunk_mark) {
- output_color(opt, "--", 2, opt->color_sep);
+ output_color(opt, "--", 2, opt->colors[GREP_COLOR_SEP]);
opt->output(opt, "\n", 1);
}
} else if (lno > opt->last_shown + 1) {
- output_color(opt, "--", 2, opt->color_sep);
+ output_color(opt, "--", 2, opt->colors[GREP_COLOR_SEP]);
opt->output(opt, "\n", 1);
}
}
if (opt->heading && opt->last_shown == 0) {
- output_color(opt, name, strlen(name), opt->color_filename);
+ output_color(opt, name, strlen(name), opt->colors[GREP_COLOR_FILENAME]);
opt->output(opt, "\n", 1);
}
opt->last_shown = lno;
if (!opt->heading && opt->pathname) {
- output_color(opt, name, strlen(name), opt->color_filename);
+ output_color(opt, name, strlen(name), opt->colors[GREP_COLOR_FILENAME]);
output_sep(opt, sign);
}
if (opt->linenum) {
char buf[32];
xsnprintf(buf, sizeof(buf), "%d", lno);
- output_color(opt, buf, strlen(buf), opt->color_lineno);
+ output_color(opt, buf, strlen(buf), opt->colors[GREP_COLOR_LINENO]);
output_sep(opt, sign);
}
if (opt->color) {
int eflags = 0;
if (sign == ':')
- match_color = opt->color_match_selected;
+ match_color = opt->colors[GREP_COLOR_MATCH_SELECTED];
else
- match_color = opt->color_match_context;
+ match_color = opt->colors[GREP_COLOR_MATCH_CONTEXT];
if (sign == ':')
- line_color = opt->color_selected;
+ line_color = opt->colors[GREP_COLOR_SELECTED];
else if (sign == '-')
- line_color = opt->color_context;
+ line_color = opt->colors[GREP_COLOR_CONTEXT];
else if (sign == '=')
- line_color = opt->color_function;
+ line_color = opt->colors[GREP_COLOR_FUNCTION];
*eol = '\0';
while (next_match(opt, bol, eol, ctx, &match, eflags)) {
if (match.rm_so == match.rm_eo)
}
}
+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;
}
}
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?");
}
/*
case GREP_BINARY_TEXT:
break;
default:
- die("BUG: unknown binary handling mode");
+ BUG("unknown binary handling mode");
}
}
if (binary_match_only) {
opt->output(opt, "Binary file ", 12);
output_color(opt, gs->name, strlen(gs->name),
- opt->color_filename);
+ opt->colors[GREP_COLOR_FILENAME]);
opt->output(opt, " matches\n", 9);
return 1;
}
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);
char buf[32];
if (opt->pathname) {
output_color(opt, gs->name, strlen(gs->name),
- opt->color_filename);
+ opt->colors[GREP_COLOR_FILENAME]);
output_sep(opt, ':');
}
xsnprintf(buf, sizeof(buf), "%u\n", count);
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;
void grep_source_clear(struct grep_source *gs)
{
- free(gs->name);
- gs->name = NULL;
- free(gs->path);
- gs->path = NULL;
- free(gs->identifier);
- gs->identifier = NULL;
+ FREE_AND_NULL(gs->name);
+ FREE_AND_NULL(gs->path);
+ FREE_AND_NULL(gs->identifier);
grep_source_clear_data(gs);
}
switch (gs->type) {
case GREP_SOURCE_FILE:
case GREP_SOURCE_OID:
- case GREP_SOURCE_SUBMODULE:
- free(gs->buf);
- gs->buf = NULL;
+ FREE_AND_NULL(gs->buf);
gs->size = 0;
break;
case GREP_SOURCE_BUF:
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)
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)