#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 int grep_source_is_binary(struct grep_source *gs,
+ struct index_state *istate);
static struct grep_opt grep_defaults;
+#ifdef USE_LIBPCRE2
+static pcre2_general_context *pcre2_global_context;
+
+static void *pcre2_malloc(PCRE2_SIZE size, MAYBE_UNUSED void *memory_data)
+{
+ return malloc(size);
+}
+
+static void pcre2_free(void *pointer, MAYBE_UNUSED void *memory_data)
+{
+ free(pointer);
+}
+#endif
+
+static const char *color_grep_slots[] = {
+ [GREP_COLOR_CONTEXT] = "context",
+ [GREP_COLOR_FILENAME] = "filename",
+ [GREP_COLOR_FUNCTION] = "function",
+ [GREP_COLOR_LINENO] = "lineNumber",
+ [GREP_COLOR_COLUMNNO] = "column",
+ [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);
* We could let the compiler do this, but without C99 initializers
* the code gets unwieldy and unreadable, so...
*/
-void init_grep_defaults(void)
+void init_grep_defaults(struct repository *repo)
{
struct grep_opt *opt = &grep_defaults;
static int run_once;
run_once++;
memset(opt, 0, sizeof(*opt));
+ opt->repo = repo;
opt->relative = 1;
opt->pathname = 1;
opt->max_depth = -1;
opt->pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED;
- 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_COLUMNNO], "");
+ 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->only_matching = 0;
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;
opt->linenum = git_config_bool(var, value);
return 0;
}
+ if (!strcmp(var, "grep.column")) {
+ opt->columnnum = git_config_bool(var, value);
+ return 0;
+ }
if (!strcmp(var, "grep.fullname")) {
opt->relative = !git_config_bool(var, value);
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);
* Initialize one instance of grep_opt and copy the
* default values from the template we read the configuration
* information in an earlier call to git_config(grep_config).
+ *
+ * If using PCRE, make sure that the library is configured
+ * to use the same allocator as Git (e.g. nedmalloc on Windows).
+ *
+ * Any allocated memory needs to be released in grep_destroy().
*/
-void grep_init(struct grep_opt *opt, const char *prefix)
+void grep_init(struct grep_opt *opt, struct repository *repo, const char *prefix)
{
struct grep_opt *def = &grep_defaults;
+ int i;
+
+#if defined(USE_LIBPCRE2)
+ if (!pcre2_global_context)
+ pcre2_global_context = pcre2_general_context_create(
+ pcre2_malloc, pcre2_free, NULL);
+#endif
+
+#ifdef USE_LIBPCRE1
+ pcre_malloc = malloc;
+ pcre_free = free;
+#endif
memset(opt, 0, sizeof(*opt));
+ opt->repo = repo;
opt->prefix = prefix;
opt->prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
opt->pattern_tail = &opt->pattern_list;
opt->header_tail = &opt->header_list;
+ opt->only_matching = def->only_matching;
opt->color = def->color;
opt->extended_regexp_option = def->extended_regexp_option;
opt->pattern_type_option = def->pattern_type_option;
opt->linenum = def->linenum;
+ opt->columnnum = def->columnnum;
opt->max_depth = def->max_depth;
opt->pathname = def->pathname;
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]);
+}
+
+void grep_destroy(void)
+{
+#ifdef USE_LIBPCRE2
+ pcre2_general_context_free(pcre2_global_context);
+#endif
}
static void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, struct grep_opt *opt)
return 1;
}
-static int has_null(const char *s, size_t len)
-{
- /*
- * regcomp cannot accept patterns with NULs so when using it
- * we consider any pattern containing a NUL fixed.
- */
- if (memchr(s, 0, len))
- return 1;
-
- return 0;
-}
-
#ifdef USE_LIBPCRE1
static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
{
const char *error;
int erroffset;
int options = PCRE_MULTILINE;
+ int study_options = 0;
if (opt->ignore_case) {
- if (has_non_ascii(p->pattern))
+ if (!opt->ignore_locale && has_non_ascii(p->pattern))
p->pcre1_tables = pcre_maketables();
options |= PCRE_CASELESS;
}
- if (is_utf8_locale() && has_non_ascii(p->pattern))
+ if (!opt->ignore_locale && is_utf8_locale() && has_non_ascii(p->pattern))
options |= PCRE_UTF8;
p->pcre1_regexp = pcre_compile(p->pattern, options, &error, &erroffset,
if (!p->pcre1_regexp)
compile_regexp_failed(p, 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);
-
-#ifdef GIT_PCRE1_USE_JIT
+#if defined(PCRE_CONFIG_JIT) && !defined(NO_LIBPCRE1_JIT)
pcre_config(PCRE_CONFIG_JIT, &p->pcre1_jit_on);
- if (p->pcre1_jit_on == 1) {
- p->pcre1_jit_stack = pcre_jit_stack_alloc(1, 1024 * 1024);
- if (!p->pcre1_jit_stack)
- 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) {
- BUG("The pcre1_jit_on variable should be 0 or 1, not %d",
- p->pcre1_jit_on);
- }
+ if (opt->debug)
+ fprintf(stderr, "pcre1_jit_on=%d\n", p->pcre1_jit_on);
+
+ if (p->pcre1_jit_on)
+ study_options = PCRE_STUDY_JIT_COMPILE;
#endif
+
+ p->pcre1_extra_info = pcre_study(p->pcre1_regexp, study_options, &error);
+ if (!p->pcre1_extra_info && error)
+ die("%s", error);
}
static int pcre1match(struct grep_pat *p, const char *line, const char *eol,
regmatch_t *match, int eflags)
{
- int ovector[30], ret, flags = 0;
+ int ovector[30], ret, flags = PCRE_NO_UTF8_CHECK;
if (eflags & REG_NOTBOL)
flags |= PCRE_NOTBOL;
-#ifdef GIT_PCRE1_USE_JIT
- if (p->pcre1_jit_on) {
- ret = pcre_jit_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
- eol - line, 0, flags, ovector,
- ARRAY_SIZE(ovector), p->pcre1_jit_stack);
- } else
-#endif
- {
- ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
- eol - line, 0, flags, ovector,
- ARRAY_SIZE(ovector));
- }
+ ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
+ eol - line, 0, flags, ovector,
+ ARRAY_SIZE(ovector));
if (ret < 0 && ret != PCRE_ERROR_NOMATCH)
die("pcre_exec failed with error code %d", ret);
static void free_pcre1_regexp(struct grep_pat *p)
{
pcre_free(p->pcre1_regexp);
-#ifdef GIT_PCRE1_USE_JIT
- if (p->pcre1_jit_on) {
+#ifdef PCRE_CONFIG_JIT
+ if (p->pcre1_jit_on)
pcre_free_study(p->pcre1_extra_info);
- pcre_jit_stack_free(p->pcre1_jit_stack);
- } else
+ else
#endif
- {
pcre_free(p->pcre1_extra_info);
- }
pcre_free((void *)p->pcre1_tables);
}
#else /* !USE_LIBPCRE1 */
PCRE2_UCHAR errbuf[256];
PCRE2_SIZE erroffset;
int options = PCRE2_MULTILINE;
- const uint8_t *character_tables = NULL;
int jitret;
int patinforet;
size_t jitsizearg;
p->pcre2_compile_context = NULL;
+ /* pcre2_global_context is initialized in append_grep_pattern */
if (opt->ignore_case) {
- if (has_non_ascii(p->pattern)) {
- character_tables = pcre2_maketables(NULL);
+ if (!opt->ignore_locale && has_non_ascii(p->pattern)) {
+ if (!pcre2_global_context)
+ BUG("pcre2_global_context uninitialized");
+ p->pcre2_tables = pcre2_maketables(pcre2_global_context);
p->pcre2_compile_context = pcre2_compile_context_create(NULL);
- pcre2_set_character_tables(p->pcre2_compile_context, character_tables);
+ pcre2_set_character_tables(p->pcre2_compile_context,
+ p->pcre2_tables);
}
options |= PCRE2_CASELESS;
}
- if (is_utf8_locale() && has_non_ascii(p->pattern))
+ if (!opt->ignore_locale && is_utf8_locale() && has_non_ascii(p->pattern) &&
+ !(!opt->ignore_case && (p->fixed || p->is_fixed)))
options |= PCRE2_UTF;
p->pcre2_pattern = pcre2_compile((PCRE2_SPTR)p->pattern,
}
pcre2_config(PCRE2_CONFIG_JIT, &p->pcre2_jit_on);
- if (p->pcre2_jit_on == 1) {
+ if (opt->debug)
+ fprintf(stderr, "pcre2_jit_on=%d\n", p->pcre2_jit_on);
+ if (p->pcre2_jit_on) {
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);
BUG("pcre2_pattern_info() failed: %d", patinforet);
if (jitsizearg == 0) {
p->pcre2_jit_on = 0;
+ if (opt->debug)
+ fprintf(stderr, "pcre2_jit_on=%d: (*NO_JIT) in regex\n",
+ p->pcre2_jit_on);
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_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) {
- BUG("The pcre2_jit_on variable should be 0 or 1, not %d",
- p->pcre1_jit_on);
}
}
pcre2_compile_context_free(p->pcre2_compile_context);
pcre2_code_free(p->pcre2_pattern);
pcre2_match_data_free(p->pcre2_match_data);
- pcre2_jit_stack_free(p->pcre2_jit_stack);
- pcre2_match_context_free(p->pcre2_match_context);
+ free((void *)p->pcre2_tables);
}
#else /* !USE_LIBPCRE2 */
static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt)
static void free_pcre2_pattern(struct grep_pat *p)
{
}
-#endif /* !USE_LIBPCRE2 */
static void compile_fixed_regexp(struct grep_pat *p, struct grep_opt *opt)
{
compile_regexp_failed(p, errbuf);
}
}
+#endif /* !USE_LIBPCRE2 */
static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
{
- int ascii_only;
int err;
int regflags = REG_NEWLINE;
p->word_regexp = opt->word_regexp;
p->ignore_case = opt->ignore_case;
- ascii_only = !has_non_ascii(p->pattern);
+ p->fixed = opt->fixed;
- /*
- * Even when -F (fixed) asks us to do a non-regexp search, we
- * may not be able to correctly case-fold when -i
- * (ignore-case) is asked (in which case, we'll synthesize a
- * regexp to match the pattern that matches regexp special
- * characters literally, while ignoring case differences). On
- * the other hand, even without -F, if the pattern does not
- * have any regexp special characters and there is no need for
- * case-folding search, we can internally turn it into a
- * simple string match using kws. p->fixed tells us if we
- * want to use kws.
- */
- if (opt->fixed ||
- has_null(p->pattern, p->patternlen) ||
- is_fixed(p->pattern, p->patternlen))
- p->fixed = !p->ignore_case || ascii_only;
-
- if (p->fixed) {
- p->kws = kwsalloc(p->ignore_case ? tolower_trans_tbl : NULL);
- kwsincr(p->kws, p->pattern, p->patternlen);
- kwsprep(p->kws);
- return;
- } else if (opt->fixed) {
- /*
- * We come here when the pattern has the non-ascii
- * characters we cannot case-fold, and asked to
- * ignore-case.
- */
+ if (memchr(p->pattern, 0, p->patternlen) && !opt->pcre2)
+ die(_("given pattern contains NULL byte (via -f <file>). This is only supported with -P under PCRE v2"));
+
+ p->is_fixed = is_fixed(p->pattern, p->patternlen);
+#ifdef USE_LIBPCRE2
+ if (!p->fixed && !p->is_fixed) {
+ const char *no_jit = "(*NO_JIT)";
+ const int no_jit_len = strlen(no_jit);
+ if (starts_with(p->pattern, no_jit) &&
+ is_fixed(p->pattern + no_jit_len,
+ p->patternlen - no_jit_len))
+ p->is_fixed = 1;
+ }
+#endif
+ if (p->fixed || p->is_fixed) {
+#ifdef USE_LIBPCRE2
+ opt->pcre2 = 1;
+ if (p->is_fixed) {
+ compile_pcre2_pattern(p, opt);
+ } else {
+ /*
+ * E.g. t7811-grep-open.sh relies on the
+ * pattern being restored.
+ */
+ char *old_pattern = p->pattern;
+ size_t old_patternlen = p->patternlen;
+ struct strbuf sb = STRBUF_INIT;
+
+ /*
+ * There is the PCRE2_LITERAL flag, but it's
+ * only in PCRE v2 10.30 and later. Needing to
+ * ifdef our way around that and dealing with
+ * it + PCRE2_MULTILINE being an error is more
+ * complex than just quoting this ourselves.
+ */
+ strbuf_add(&sb, "\\Q", 2);
+ strbuf_add(&sb, p->pattern, p->patternlen);
+ strbuf_add(&sb, "\\E", 2);
+
+ p->pattern = sb.buf;
+ p->patternlen = sb.len;
+ compile_pcre2_pattern(p, opt);
+ p->pattern = old_pattern;
+ p->patternlen = old_patternlen;
+ strbuf_release(&sb);
+ }
+#else /* !USE_LIBPCRE2 */
compile_fixed_regexp(p, opt);
+#endif /* !USE_LIBPCRE2 */
return;
}
case GREP_PATTERN: /* atom */
case GREP_PATTERN_HEAD:
case GREP_PATTERN_BODY:
- if (p->kws)
- kwsfree(p->kws);
- else if (p->pcre1_regexp)
+ if (p->pcre1_regexp)
free_pcre1_regexp(p);
else if (p->pcre2_pattern)
free_pcre2_pattern(p);
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);
}
-static int fixmatch(struct grep_pat *p, char *line, char *eol,
- regmatch_t *match)
-{
- struct kwsmatch kwsm;
- size_t offset = kwsexec(p->kws, line, eol - line, &kwsm);
- if (offset == -1) {
- match->rm_so = match->rm_eo = -1;
- return REG_NOMATCH;
- } else {
- match->rm_so = offset;
- match->rm_eo = match->rm_so + kwsm.size[0];
- return 0;
- }
-}
-
static int patmatch(struct grep_pat *p, char *line, char *eol,
regmatch_t *match, int eflags)
{
int hit;
- if (p->fixed)
- hit = !fixmatch(p, line, eol, match);
- else if (p->pcre1_regexp)
+ if (p->pcre1_regexp)
hit = !pcre1match(p, line, eol, match, eflags);
else if (p->pcre2_pattern)
hit = !pcre2match(p, line, eol, match, eflags);
return hit;
}
-static int match_expr_eval(struct grep_expr *x, char *bol, char *eol,
- enum grep_context ctx, int collect_hits)
+static int match_expr_eval(struct grep_opt *opt, struct grep_expr *x, char *bol,
+ char *eol, enum grep_context ctx, ssize_t *col,
+ ssize_t *icol, int collect_hits)
{
int h = 0;
- regmatch_t match;
if (!x)
die("Not a valid grep expression");
h = 1;
break;
case GREP_NODE_ATOM:
- h = match_one_pattern(x->u.atom, bol, eol, ctx, &match, 0);
+ {
+ regmatch_t tmp;
+ h = match_one_pattern(x->u.atom, bol, eol, ctx,
+ &tmp, 0);
+ if (h && (*col < 0 || tmp.rm_so < *col))
+ *col = tmp.rm_so;
+ }
break;
case GREP_NODE_NOT:
- h = !match_expr_eval(x->u.unary, bol, eol, ctx, 0);
+ /*
+ * Upon visiting a GREP_NODE_NOT, col and icol become swapped.
+ */
+ h = !match_expr_eval(opt, x->u.unary, bol, eol, ctx, icol, col,
+ 0);
break;
case GREP_NODE_AND:
- if (!match_expr_eval(x->u.binary.left, bol, eol, ctx, 0))
- return 0;
- h = match_expr_eval(x->u.binary.right, bol, eol, ctx, 0);
+ h = match_expr_eval(opt, x->u.binary.left, bol, eol, ctx, col,
+ icol, 0);
+ if (h || opt->columnnum) {
+ /*
+ * Don't short-circuit AND when given --column, since a
+ * NOT earlier in the tree may turn this into an OR. In
+ * this case, see the below comment.
+ */
+ h &= match_expr_eval(opt, x->u.binary.right, bol, eol,
+ ctx, col, icol, 0);
+ }
break;
case GREP_NODE_OR:
- if (!collect_hits)
- return (match_expr_eval(x->u.binary.left,
- bol, eol, ctx, 0) ||
- match_expr_eval(x->u.binary.right,
- bol, eol, ctx, 0));
- h = match_expr_eval(x->u.binary.left, bol, eol, ctx, 0);
- x->u.binary.left->hit |= h;
- h |= match_expr_eval(x->u.binary.right, bol, eol, ctx, 1);
+ if (!(collect_hits || opt->columnnum)) {
+ /*
+ * Don't short-circuit OR when given --column (or
+ * collecting hits) to ensure we don't skip a later
+ * child that would produce an earlier match.
+ */
+ return (match_expr_eval(opt, x->u.binary.left, bol, eol,
+ ctx, col, icol, 0) ||
+ match_expr_eval(opt, x->u.binary.right, bol,
+ eol, ctx, col, icol, 0));
+ }
+ h = match_expr_eval(opt, x->u.binary.left, bol, eol, ctx, col,
+ icol, 0);
+ if (collect_hits)
+ x->u.binary.left->hit |= h;
+ h |= match_expr_eval(opt, x->u.binary.right, bol, eol, ctx, col,
+ icol, collect_hits);
break;
default:
die("Unexpected node type (internal error) %d", x->node);
}
static int match_expr(struct grep_opt *opt, char *bol, char *eol,
- enum grep_context ctx, int collect_hits)
+ enum grep_context ctx, ssize_t *col,
+ ssize_t *icol, int collect_hits)
{
struct grep_expr *x = opt->pattern_expression;
- return match_expr_eval(x, bol, eol, ctx, collect_hits);
+ return match_expr_eval(opt, x, bol, eol, ctx, col, icol, collect_hits);
}
static int match_line(struct grep_opt *opt, char *bol, char *eol,
+ ssize_t *col, ssize_t *icol,
enum grep_context ctx, int collect_hits)
{
struct grep_pat *p;
- regmatch_t match;
+ int hit = 0;
if (opt->extended)
- return match_expr(opt, bol, eol, ctx, collect_hits);
+ return match_expr(opt, bol, eol, ctx, col, icol,
+ collect_hits);
/* we do not call with collect_hits without being extended */
for (p = opt->pattern_list; p; p = p->next) {
- if (match_one_pattern(p, bol, eol, ctx, &match, 0))
- return 1;
+ regmatch_t tmp;
+ if (match_one_pattern(p, bol, eol, ctx, &tmp, 0)) {
+ hit |= 1;
+ if (!opt->columnnum) {
+ /*
+ * Without --column, any single match on a line
+ * is enough to know that it needs to be
+ * printed. With --column, scan _all_ patterns
+ * to find the earliest.
+ */
+ break;
+ }
+ if (*col < 0 || tmp.rm_so < *col)
+ *col = tmp.rm_so;
+ }
}
- return 0;
+ return hit;
}
static int match_next_pattern(struct grep_pat *p, char *bol, char *eol,
return hit;
}
+static void show_line_header(struct grep_opt *opt, const char *name,
+ unsigned lno, ssize_t cno, char sign)
+{
+ if (opt->heading && opt->last_shown == 0) {
+ 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->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->colors[GREP_COLOR_LINENO]);
+ output_sep(opt, sign);
+ }
+ /*
+ * Treat 'cno' as the 1-indexed offset from the start of a non-context
+ * line to its first match. Otherwise, 'cno' is 0 indicating that we are
+ * being called with a context line.
+ */
+ if (opt->columnnum && cno) {
+ char buf[32];
+ xsnprintf(buf, sizeof(buf), "%"PRIuMAX, (uintmax_t)cno);
+ output_color(opt, buf, strlen(buf), opt->colors[GREP_COLOR_COLUMNNO]);
+ output_sep(opt, sign);
+ }
+}
+
static void show_line(struct grep_opt *opt, char *bol, char *eol,
- const char *name, unsigned lno, char sign)
+ const char *name, unsigned lno, ssize_t cno, char sign)
{
int rest = eol - bol;
- const char *match_color, *line_color = NULL;
+ const char *match_color = NULL;
+ const char *line_color = NULL;
if (opt->file_break && opt->last_shown == 0) {
if (opt->show_hunk_mark)
} 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);
- opt->output(opt, "\n", 1);
- }
- opt->last_shown = lno;
-
- if (!opt->heading && opt->pathname) {
- output_color(opt, name, strlen(name), opt->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_sep(opt, sign);
+ if (!opt->only_matching) {
+ /*
+ * In case the line we're being called with contains more than
+ * one match, leave printing each header to the loop below.
+ */
+ show_line_header(opt, name, lno, cno, sign);
}
- if (opt->color) {
+ if (opt->color || opt->only_matching) {
regmatch_t match;
enum grep_context ctx = GREP_CONTEXT_BODY;
int ch = *eol;
int eflags = 0;
- if (sign == ':')
- match_color = opt->color_match_selected;
- else
- match_color = opt->color_match_context;
- if (sign == ':')
- line_color = opt->color_selected;
- else if (sign == '-')
- line_color = opt->color_context;
- else if (sign == '=')
- line_color = opt->color_function;
+ if (opt->color) {
+ if (sign == ':')
+ match_color = opt->colors[GREP_COLOR_MATCH_SELECTED];
+ else
+ match_color = opt->colors[GREP_COLOR_MATCH_CONTEXT];
+ if (sign == ':')
+ line_color = opt->colors[GREP_COLOR_SELECTED];
+ else if (sign == '-')
+ line_color = opt->colors[GREP_COLOR_CONTEXT];
+ else if (sign == '=')
+ 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)
break;
- output_color(opt, bol, match.rm_so, line_color);
+ if (opt->only_matching)
+ show_line_header(opt, name, lno, cno, sign);
+ else
+ output_color(opt, bol, match.rm_so, line_color);
output_color(opt, bol + match.rm_so,
match.rm_eo - match.rm_so, match_color);
+ if (opt->only_matching)
+ opt->output(opt, "\n", 1);
bol += match.rm_eo;
+ cno += match.rm_eo;
rest -= match.rm_eo;
eflags = REG_NOTBOL;
}
*eol = ch;
}
- output_color(opt, bol, rest, line_color);
- opt->output(opt, "\n", 1);
+ if (!opt->only_matching) {
+ output_color(opt, bol, rest, line_color);
+ opt->output(opt, "\n", 1);
+ }
}
-#ifndef NO_PTHREADS
int grep_use_locks;
/*
pthread_mutex_unlock(&grep_attr_mutex);
}
-/*
- * Same as git_attr_mutex, but protecting the thread-unsafe object db access.
- */
-pthread_mutex_t grep_read_mutex;
-
-#else
-#define grep_attr_lock()
-#define grep_attr_unlock()
-#endif
-
static int match_funcname(struct grep_opt *opt, struct grep_source *gs, char *bol, char *eol)
{
xdemitconf_t *xecfg = opt->priv;
if (xecfg && !xecfg->find_func) {
- grep_source_load_driver(gs);
+ grep_source_load_driver(gs, opt->repo->index);
if (gs->driver->funcname.pattern) {
const struct userdiff_funcname *pe = &gs->driver->funcname;
xdiff_set_find_func(xecfg, pe->pattern, pe->cflags);
break;
if (match_funcname(opt, gs, bol, eol)) {
- show_line(opt, bol, eol, gs->name, lno, '=');
+ show_line(opt, bol, eol, gs->name, lno, 0, '=');
break;
}
}
while (*eol != '\n')
eol++;
- show_line(opt, bol, eol, gs->name, cur, sign);
+ show_line(opt, bol, eol, gs->name, cur, 0, sign);
bol = eol + 1;
cur++;
}
return 0;
}
-static int fill_textconv_grep(struct userdiff_driver *driver,
+static int fill_textconv_grep(struct repository *r,
+ struct userdiff_driver *driver,
struct grep_source *gs)
{
struct diff_filespec *df;
}
/*
- * fill_textconv is not remotely thread-safe; it may load objects
- * behind the scenes, and it modifies the global diff tempfile
- * structure.
+ * fill_textconv is not remotely thread-safe; it modifies the global
+ * diff tempfile structure, writes to the_repo's odb and might
+ * internally call thread-unsafe functions such as the
+ * prepare_packed_git() lazy-initializator. Because of the last two, we
+ * must ensure mutual exclusion between this call and the object reading
+ * API, thus we use obj_read_lock() here.
+ *
+ * TODO: allowing text conversion to run in parallel with object
+ * reading operations might increase performance in the multithreaded
+ * non-worktreee git-grep with --textconv.
*/
- grep_read_lock();
- size = fill_textconv(driver, df, &buf);
- grep_read_unlock();
+ obj_read_lock();
+ size = fill_textconv(r, driver, df, &buf);
+ obj_read_unlock();
free_filespec(df);
/*
enum grep_context ctx = GREP_CONTEXT_HEAD;
xdemitconf_t xecfg;
+ if (!opt->status_only && gs->name == NULL)
+ BUG("grep call which could print a name requires "
+ "grep_source.name be non-NULL");
+
if (!opt->output)
opt->output = std_output;
opt->last_shown = 0;
if (opt->allow_textconv) {
- grep_source_load_driver(gs);
+ grep_source_load_driver(gs, opt->repo->index);
/*
* We might set up the shared textconv cache data here, which
- * is not thread-safe.
+ * is not thread-safe. Also, get_oid_with_context() and
+ * parse_object() might be internally called. As they are not
+ * currenty thread-safe and might be racy with object reading,
+ * obj_read_lock() must be called.
*/
grep_attr_lock();
- textconv = userdiff_get_textconv(gs->driver);
+ obj_read_lock();
+ textconv = userdiff_get_textconv(opt->repo, gs->driver);
+ obj_read_unlock();
grep_attr_unlock();
}
if (!textconv) {
switch (opt->binary) {
case GREP_BINARY_DEFAULT:
- if (grep_source_is_binary(gs))
+ if (grep_source_is_binary(gs, opt->repo->index))
binary_match_only = 1;
break;
case GREP_BINARY_NOMATCH:
- if (grep_source_is_binary(gs))
+ if (grep_source_is_binary(gs, opt->repo->index))
return 0; /* Assume unmatch */
break;
case GREP_BINARY_TEXT:
try_lookahead = should_lookahead(opt);
- if (fill_textconv_grep(textconv, gs) < 0)
+ if (fill_textconv_grep(opt->repo, textconv, gs) < 0)
return 0;
bol = gs->buf;
while (left) {
char *eol, ch;
int hit;
+ ssize_t cno;
+ ssize_t col = -1, icol = -1;
/*
* look_ahead() skips quickly to the line that possibly
if ((ctx == GREP_CONTEXT_HEAD) && (eol == bol))
ctx = GREP_CONTEXT_BODY;
- hit = match_line(opt, bol, eol, ctx, collect_hits);
+ hit = match_line(opt, bol, eol, &col, &icol, ctx, collect_hits);
*eol = ch;
if (collect_hits)
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;
}
show_pre_context(opt, gs, bol, eol, lno);
else if (opt->funcname)
show_funcname_line(opt, gs, bol, lno);
- show_line(opt, bol, eol, gs->name, lno, ':');
+ cno = opt->invert ? icol : col;
+ if (cno < 0) {
+ /*
+ * A negative cno indicates that there was no
+ * match on the line. We are thus inverted and
+ * being asked to show all lines that _don't_
+ * match a given expression. Therefore, set cno
+ * to 0 to suggest the whole line matches.
+ */
+ cno = 0;
+ }
+ show_line(opt, bol, eol, gs->name, lno, cno + 1, ':');
last_hit = lno;
if (opt->funcbody)
show_function = 1;
/* If the last hit is within the post context,
* we need to show this line.
*/
- show_line(opt, bol, eol, gs->name, lno, '-');
+ show_line(opt, bol, eol, gs->name, lno, col + 1, '-');
}
next_line:
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);
{
enum object_type type;
- grep_read_lock();
gs->buf = read_object_file(gs->identifier, &type, &gs->size);
- grep_read_unlock();
-
if (!gs->buf)
return error(_("'%s': unable to read %s"),
gs->name,
BUG("invalid grep_source type to load");
}
-void grep_source_load_driver(struct grep_source *gs)
+void grep_source_load_driver(struct grep_source *gs,
+ struct index_state *istate)
{
if (gs->driver)
return;
grep_attr_lock();
if (gs->path)
- gs->driver = userdiff_find_by_path(gs->path);
+ gs->driver = userdiff_find_by_path(istate, gs->path);
if (!gs->driver)
gs->driver = userdiff_find_by_name("default");
grep_attr_unlock();
}
-static int grep_source_is_binary(struct grep_source *gs)
+static int grep_source_is_binary(struct grep_source *gs,
+ struct index_state *istate)
{
- grep_source_load_driver(gs);
+ grep_source_load_driver(gs, istate);
if (gs->driver->binary != -1)
return gs->driver->binary;
projects / thirdparty / git.git / blobdiff