Implement rebase_todo_list, which is a resizable array of
rebase_todo_items.
Signed-off-by: Paul Tan <pyokagan@xxxxxxxxx>
---
rebase-todo.c | 107 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
rebase-todo.h | 27 +++++++++++++++
2 files changed, 134 insertions(+)
diff --git a/rebase-todo.c b/rebase-todo.c
index ac6b222..4f14638 100644
--- a/rebase-todo.c
+++ b/rebase-todo.c
@@ -142,3 +142,110 @@ void strbuf_add_rebase_todo_item(struct strbuf *sb,
strbuf_addch(sb, '\n');
}
+
+void rebase_todo_list_init(struct rebase_todo_list *list)
+{
+ list->items = NULL;
+ list->nr = 0;
+ list->alloc = 0;
+}
+
+void rebase_todo_list_clear(struct rebase_todo_list *list)
+{
+ unsigned int i;
+
+ for (i = 0; i < list->nr; i++)
+ rebase_todo_item_release(&list->items[i]);
+ free(list->items);
+ rebase_todo_list_init(list);
+}
+
+void rebase_todo_list_swap(struct rebase_todo_list *dst,
+ struct rebase_todo_list *src)
+{
+ struct rebase_todo_list tmp = *dst;
+
+ *dst = *src;
+ *src = tmp;
+}
+
+unsigned int rebase_todo_list_count(const struct rebase_todo_list *list)
+{
+ unsigned int i, count = 0;
+
+ for (i = 0; i < list->nr; i++)
+ if (list->items[i].action != REBASE_TODO_NONE)
+ count++;
+ return count;
+}
+
+struct rebase_todo_item *rebase_todo_list_push(struct rebase_todo_list *list, const struct rebase_todo_item *src_item)
+{
+ struct rebase_todo_item *item = rebase_todo_list_push_empty(list);
+
+ rebase_todo_item_copy(item, src_item);
+ return item;
+}
+
+struct rebase_todo_item *rebase_todo_list_push_empty(struct rebase_todo_list *list)
+{
+ struct rebase_todo_item *item;
+
+ ALLOC_GROW(list->items, list->nr + 1, list->alloc);
+ item = &list->items[list->nr++];
+ rebase_todo_item_init(item);
+ return item;
+}
+
+struct rebase_todo_item *rebase_todo_list_push_noop(struct rebase_todo_list *list)
+{
+ struct rebase_todo_item *item = rebase_todo_list_push_empty(list);
+
+ item->action = REBASE_TODO_NOOP;
+ return item;
+}
+
+int rebase_todo_list_load(struct rebase_todo_list *list, const char *path, int abbrev)
+{
+ struct strbuf sb = STRBUF_INIT;
+ FILE *fp;
+
+ fp = fopen(path, "r");
+ if (!fp)
+ return error(_("could not open %s for reading"), path);
+
+ while (strbuf_getline(&sb, fp) != EOF) {
+ struct rebase_todo_item *item = rebase_todo_list_push_empty(list);
+ if (rebase_todo_item_parse(item, sb.buf, abbrev) < 0) {
+ rebase_todo_item_release(item);
+ list->nr--;
+ strbuf_release(&sb);
+ fclose(fp);
+ return -1;
+ }
+ }
+ strbuf_release(&sb);
+ fclose(fp);
+ return 0;
+}
+
+void rebase_todo_list_save(const struct rebase_todo_list *list, const char *filename, unsigned int offset, int abbrev)
+{
+ char *tmpfile = mkpathdup("%s.new", filename);
+ struct strbuf sb = STRBUF_INIT;
+ int fd;
+
+ for (; offset < list->nr; offset++)
+ strbuf_add_rebase_todo_item(&sb, &list->items[offset], abbrev);
+
+ fd = xopen(tmpfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ if (write_in_full(fd, sb.buf, sb.len) != sb.len)
+ die_errno(_("could not write to %s"), tmpfile);
+ close(fd);
+ strbuf_release(&sb);
+
+ if (rename(tmpfile, filename))
+ die_errno(_("rename failed"));
+
+ free(tmpfile);
+}
diff --git a/rebase-todo.h b/rebase-todo.h
index 2eedbb0..f602fd2 100644
--- a/rebase-todo.h
+++ b/rebase-todo.h
@@ -25,4 +25,31 @@ int rebase_todo_item_parse(struct rebase_todo_item *, const char *line, int abbr
void strbuf_add_rebase_todo_item(struct strbuf *, const struct rebase_todo_item *, int abbrev);
+struct rebase_todo_list {
+ struct rebase_todo_item *items;
+ unsigned int nr, alloc;
+};
+
+#define REBASE_TODO_LIST_INIT { NULL, 0, 0 }
+
+void rebase_todo_list_init(struct rebase_todo_list *);
+
+void rebase_todo_list_clear(struct rebase_todo_list *);
+
+void rebase_todo_list_swap(struct rebase_todo_list *dst, struct rebase_todo_list *src);
+
+unsigned int rebase_todo_list_count(const struct rebase_todo_list *);
+
+struct rebase_todo_item *rebase_todo_list_push(struct rebase_todo_list *,
+ const struct rebase_todo_item *);
+
+struct rebase_todo_item *rebase_todo_list_push_empty(struct rebase_todo_list *);
+
+struct rebase_todo_item *rebase_todo_list_push_noop(struct rebase_todo_list *);
+
+int rebase_todo_list_load(struct rebase_todo_list *, const char *path, int abbrev);
+
+void rebase_todo_list_save(const struct rebase_todo_list *, const char *path,
+ unsigned int offset, int abbrev);
+
#endif /* REBASE_TODO_H */
--
2.7.0
--
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