Function grep_source_1

grep.c:1566–1803

}

static int grep_source_1(struct grep_opt *opt, struct grep_source *gs, int collect_hits)
{
	const char *bol;
	const char *peek_bol = NULL;
	unsigned long left;
	unsigned lno = 1;
	unsigned last_hit = 0;
	int binary_match_only = 0;
	unsigned count = 0;
	int try_lookahead = 0;
	int show_function = 0;
	struct userdiff_driver *textconv = NULL;
	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;

	if (opt->pre_context || opt->post_context || opt->file_break ||
	    opt->funcbody) {
		/* Show hunk marks, except for the first file. */
		if (opt->last_shown)
			opt->show_hunk_mark = 1;
		/*
		 * If we're using threads then we can't easily identify
		 * the first file.  Always put hunk marks in that case
		 * and skip the very first one later in work_done().
		 */
		if (opt->output != std_output)
			opt->show_hunk_mark = 1;
	}
	opt->last_shown = 0;

	if (opt->allow_textconv) {
		grep_source_load_driver(gs, opt->repo->index);
		/*
		 * We might set up the shared textconv cache data here, which
		 * is not thread-safe. Also, get_oid_with_context() and
		 * parse_object() might be internally called. As they are not
		 * currently thread-safe and might be racy with object reading,
		 * obj_read_lock() must be called.
		 */
		grep_attr_lock();
		obj_read_lock();
		textconv = userdiff_get_textconv(opt->repo, gs->driver);
		obj_read_unlock();
		grep_attr_unlock();
	}

	/*
	 * We know the result of a textconv is text, so we only have to care
	 * about binary handling if we are not using it.
	 */
	if (!textconv) {