[PATCH v10 06/12] trailer: put all the processing together and print

[Christian Couder <chriscool@tuxfamily.org>]

This patch adds the process_trailers() function that
calls all the previously added processing functions
and then prints the results on the standard output.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 trailer.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 trailer.h |  6 ++++++
 2 files changed, 55 insertions(+)
 create mode 100644 trailer.h

diff --git a/trailer.c b/trailer.c
index 6d2da32..16465e5 100644
--- a/trailer.c
+++ b/trailer.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "trailer.h"
 /*
  * Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
  */
@@ -68,6 +69,26 @@ static void free_trailer_item(struct trailer_item *item)
 	free(item);
 }
 
+static void print_tok_val(const char *tok, const char *val)
+{
+	char c = tok[strlen(tok) - 1];
+	if (isalnum(c))
+		printf("%s: %s\n", tok, val);
+	else if (isspace(c) || c == '#')
+		printf("%s%s\n", tok, val);
+	else
+		printf("%s %s\n", tok, val);
+}
+
+static void print_all(struct trailer_item *first, int trim_empty)
+{
+	struct trailer_item *item;
+	for (item = first; item; item = item->next) {
+		if (!trim_empty || strlen(item->value) > 0)
+			print_tok_val(item->token, item->value);
+	}
+}
+
 static void add_arg_to_input_list(struct trailer_item *in_tok,
 				  struct trailer_item *arg_tok)
 {
@@ -584,3 +605,31 @@ static void process_stdin(struct trailer_item **in_tok_first,
 
 	strbuf_list_free(lines);
 }
+
+static void free_all(struct trailer_item **first)
+{
+	while (*first) {
+		struct trailer_item *item = remove_first(first);
+		free_trailer_item(item);
+	}
+}
+
+void process_trailers(int trim_empty, int argc, const char **argv)
+{
+	struct trailer_item *in_tok_first = NULL;
+	struct trailer_item *in_tok_last = NULL;
+	struct trailer_item *arg_tok_first;
+
+	git_config(git_trailer_config, NULL);
+
+	/* Print the non trailer part of stdin */
+	process_stdin(&in_tok_first, &in_tok_last);
+
+	arg_tok_first = process_command_line_args(argc, argv);
+
+	process_trailers_lists(&in_tok_first, &in_tok_last, &arg_tok_first);
+
+	print_all(in_tok_first, trim_empty);
+
+	free_all(&in_tok_first);
+}
diff --git a/trailer.h b/trailer.h
new file mode 100644
index 0000000..9323b1e
--- /dev/null
+++ b/trailer.h
@@ -0,0 +1,6 @@
+#ifndef TRAILER_H
+#define TRAILER_H
+
+void process_trailers(int trim_empty, int argc, const char **argv);
+
+#endif /* TRAILER_H */
-- 
1.9.0.163.g8ca203c