git-p4: raise exceptions from p4CmdList based on error from p4 server

diff --git a/trailer.h b/trailer.h
index 65cc5d79c6cecfce5cf3302dd7dcb6323f9f85dc..6d7f8c2a52305d3d937b69a877f1ae0b7af94363 100644 (file)
--- a/trailer.h
+++ b/trailer.h
@@ -1,6 +1,33 @@
 #ifndef TRAILER_H
 #define TRAILER_H
 
+#include "list.h"
+
+enum trailer_where {
+       WHERE_DEFAULT,
+       WHERE_END,
+       WHERE_AFTER,
+       WHERE_BEFORE,
+       WHERE_START
+};
+enum trailer_if_exists {
+       EXISTS_DEFAULT,
+       EXISTS_ADD_IF_DIFFERENT_NEIGHBOR,
+       EXISTS_ADD_IF_DIFFERENT,
+       EXISTS_ADD,
+       EXISTS_REPLACE,
+       EXISTS_DO_NOTHING
+};
+enum trailer_if_missing {
+       MISSING_DEFAULT,
+       MISSING_ADD,
+       MISSING_DO_NOTHING
+};
+
+int trailer_set_where(enum trailer_where *item, const char *value);
+int trailer_set_if_exists(enum trailer_if_exists *item, const char *value);
+int trailer_set_if_missing(enum trailer_if_missing *item, const char *value);
+
 struct trailer_info {
        /*
         * True if there is a blank line before the location pointed to by
@@ -22,11 +49,50 @@ struct trailer_info {
        size_t trailer_nr;
 };
 
-void process_trailers(const char *file, int in_place, int trim_empty,
-                     struct string_list *trailers);
+/*
+ * A list that represents newly-added trailers, such as those provided
+ * with the --trailer command line option of git-interpret-trailers.
+ */
+struct new_trailer_item {
+       struct list_head list;
+
+       const char *text;
+
+       enum trailer_where where;
+       enum trailer_if_exists if_exists;
+       enum trailer_if_missing if_missing;
+};
+
+struct process_trailer_options {
+       int in_place;
+       int trim_empty;
+       int only_trailers;
+       int only_input;
+       int unfold;
+};
+
+#define PROCESS_TRAILER_OPTIONS_INIT {0}
+
+void process_trailers(const char *file,
+                     const struct process_trailer_options *opts,
+                     struct list_head *new_trailer_head);
 
 void trailer_info_get(struct trailer_info *info, const char *str);
 
 void trailer_info_release(struct trailer_info *info);
 
+/*
+ * Format the trailers from the commit msg "msg" into the strbuf "out".
+ * Note two caveats about "opts":
+ *
+ *   - this is primarily a helper for pretty.c, and not
+ *     all of the flags are supported.
+ *
+ *   - this differs from process_trailers slightly in that we always format
+ *     only the trailer block itself, even if the "only_trailers" option is not
+ *     set.
+ */
+void format_trailers_from_commit(struct strbuf *out, const char *msg,
+                                const struct process_trailer_options *opts);
+
 #endif /* TRAILER_H */