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-rw-r--r--builtin/interpret-trailers.c142
1 files changed, 142 insertions, 0 deletions
diff --git a/builtin/interpret-trailers.c b/builtin/interpret-trailers.c
new file mode 100644
index 0000000..e58627c
--- /dev/null
+++ b/builtin/interpret-trailers.c
@@ -0,0 +1,142 @@
+/*
+ * Builtin "git interpret-trailers"
+ *
+ * Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
+ *
+ */
+
+#include "cache.h"
+#include "builtin.h"
+#include "parse-options.h"
+#include "string-list.h"
+#include "trailer.h"
+#include "config.h"
+
+static const char * const git_interpret_trailers_usage[] = {
+ N_("git interpret-trailers [--in-place] [--trim-empty]\n"
+ " [(--trailer <token>[(=|:)<value>])...]\n"
+ " [--parse] [<file>...]"),
+ NULL
+};
+
+static enum trailer_where where;
+static enum trailer_if_exists if_exists;
+static enum trailer_if_missing if_missing;
+
+static int option_parse_where(const struct option *opt,
+ const char *arg, int unset)
+{
+ return trailer_set_where(&where, arg);
+}
+
+static int option_parse_if_exists(const struct option *opt,
+ const char *arg, int unset)
+{
+ return trailer_set_if_exists(&if_exists, arg);
+}
+
+static int option_parse_if_missing(const struct option *opt,
+ const char *arg, int unset)
+{
+ return trailer_set_if_missing(&if_missing, arg);
+}
+
+static void new_trailers_clear(struct list_head *trailers)
+{
+ struct list_head *pos, *tmp;
+ struct new_trailer_item *item;
+
+ list_for_each_safe(pos, tmp, trailers) {
+ item = list_entry(pos, struct new_trailer_item, list);
+ list_del(pos);
+ free(item);
+ }
+}
+
+static int option_parse_trailer(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct list_head *trailers = opt->value;
+ struct new_trailer_item *item;
+
+ if (unset) {
+ new_trailers_clear(trailers);
+ return 0;
+ }
+
+ if (!arg)
+ return -1;
+
+ item = xmalloc(sizeof(*item));
+ item->text = arg;
+ item->where = where;
+ item->if_exists = if_exists;
+ item->if_missing = if_missing;
+ list_add_tail(&item->list, trailers);
+ return 0;
+}
+
+static int parse_opt_parse(const struct option *opt, const char *arg,
+ int unset)
+{
+ struct process_trailer_options *v = opt->value;
+ v->only_trailers = 1;
+ v->only_input = 1;
+ v->unfold = 1;
+ BUG_ON_OPT_NEG(unset);
+ BUG_ON_OPT_ARG(arg);
+ return 0;
+}
+
+int cmd_interpret_trailers(int argc, const char **argv, const char *prefix)
+{
+ struct process_trailer_options opts = PROCESS_TRAILER_OPTIONS_INIT;
+ LIST_HEAD(trailers);
+
+ struct option options[] = {
+ OPT_BOOL(0, "in-place", &opts.in_place, N_("edit files in place")),
+ OPT_BOOL(0, "trim-empty", &opts.trim_empty, N_("trim empty trailers")),
+
+ OPT_CALLBACK(0, "where", NULL, N_("action"),
+ N_("where to place the new trailer"), option_parse_where),
+ OPT_CALLBACK(0, "if-exists", NULL, N_("action"),
+ N_("action if trailer already exists"), option_parse_if_exists),
+ OPT_CALLBACK(0, "if-missing", NULL, N_("action"),
+ N_("action if trailer is missing"), option_parse_if_missing),
+
+ OPT_BOOL(0, "only-trailers", &opts.only_trailers, N_("output only the trailers")),
+ OPT_BOOL(0, "only-input", &opts.only_input, N_("do not apply config rules")),
+ OPT_BOOL(0, "unfold", &opts.unfold, N_("join whitespace-continued values")),
+ OPT_CALLBACK_F(0, "parse", &opts, NULL, N_("set parsing options"),
+ PARSE_OPT_NOARG | PARSE_OPT_NONEG, parse_opt_parse),
+ OPT_BOOL(0, "no-divider", &opts.no_divider, N_("do not treat --- specially")),
+ OPT_CALLBACK(0, "trailer", &trailers, N_("trailer"),
+ N_("trailer(s) to add"), option_parse_trailer),
+ OPT_END()
+ };
+
+ git_config(git_default_config, NULL);
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_interpret_trailers_usage, 0);
+
+ if (opts.only_input && !list_empty(&trailers))
+ usage_msg_opt(
+ _("--trailer with --only-input does not make sense"),
+ git_interpret_trailers_usage,
+ options);
+
+ if (argc) {
+ int i;
+ for (i = 0; i < argc; i++)
+ process_trailers(argv[i], &opts, &trailers);
+ } else {
+ if (opts.in_place)
+ die(_("no input file given for in-place editing"));
+ process_trailers(NULL, &opts, &trailers);
+ }
+
+ new_trailers_clear(&trailers);
+
+ return 0;
+}