trailer: put all the processing together and print

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>

diff --git a/trailer.c b/trailer.c
index 4f0de3b677f74f58aa63f124628175d8b19b4390..b0be0d7c5ca66d099307f7f217e7c5a6d3c18111 100644 (file)
--- a/trailer.c
+++ b/trailer.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "string-list.h"
+#include "trailer.h"
 /*
  * Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
  */
@@ -87,6 +88,35 @@ static void free_trailer_item(struct trailer_item *item)
        free(item);
 }
 
+static char last_non_space_char(const char *s)
+{
+       int i;
+       for (i = strlen(s) - 1; i >= 0; i--)
+               if (!isspace(s[i]))
+                       return s[i];
+       return '\0';
+}
+
+static void print_tok_val(const char *tok, const char *val)
+{
+       char c = last_non_space_char(tok);
+       if (!c)
+               return;
+       if (strchr(separators, c))
+               printf("%s%s\n", tok, val);
+       else
+               printf("%s%c %s\n", tok, separators[0], 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 update_last(struct trailer_item **last)
 {
        if (*last)
@@ -697,3 +727,42 @@ static int process_input_file(struct strbuf **lines,
 
        return patch_start;
 }
+
+static void free_all(struct trailer_item **first)
+{
+       while (*first) {
+               struct trailer_item *item = remove_first(first);
+               free_trailer_item(item);
+       }
+}
+
+void process_trailers(const char *file, int trim_empty, struct string_list *trailers)
+{
+       struct trailer_item *in_tok_first = NULL;
+       struct trailer_item *in_tok_last = NULL;
+       struct trailer_item *arg_tok_first;
+       struct strbuf **lines;
+       int patch_start;
+
+       /* Default config must be setup first */
+       git_config(git_trailer_default_config, NULL);
+       git_config(git_trailer_config, NULL);
+
+       lines = read_input_file(file);
+
+       /* Print the lines before the trailers */
+       patch_start = process_input_file(lines, &in_tok_first, &in_tok_last);
+
+       arg_tok_first = process_command_line_args(trailers);
+
+       process_trailers_lists(&in_tok_first, &in_tok_last, &arg_tok_first);
+
+       print_all(in_tok_first, trim_empty);
+
+       free_all(&in_tok_first);
+
+       /* Print the lines after the trailers as is */
+       print_lines(lines, patch_start, INT_MAX);
+
+       strbuf_list_free(lines);
+}

diff --git a/trailer.h b/trailer.h
new file mode 100644 (file)
index 0000000..8eb25d5
--- /dev/null
+++ b/trailer.h
@@ -0,0 +1,6 @@
+#ifndef TRAILER_H
+#define TRAILER_H
+
+void process_trailers(const char *file, int trim_empty, struct string_list *trailers);
+
+#endif /* TRAILER_H */