[PATCH v2 12/32] repository: add index_state to struct repo

[Brandon Williams]

Signed-off-by: Brandon Williams <bmw...@google.com>
---
 repository.c | 16 ++++++++++++++++
 repository.h |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/repository.c b/repository.c
index fd53d6bf7..21719d0a6 100644
--- a/repository.c
+++ b/repository.c
@@ -186,5 +186,21 @@ void repo_clear(struct repository *repo)
                repo->config = NULL;
        }
 
+       if (repo->index) {
+               discard_index(repo->index);
+               free(repo->index);
+               repo->index = NULL;
+       }
+
        memset(repo, 0, sizeof(*repo));
 }
+
+int repo_read_index(struct repository *repo)
+{
+       if (!repo->index)
+               repo->index = xcalloc(1, sizeof(struct index_state));
+       else
+               discard_index(repo->index);
+
+       return read_index_from(repo->index, repo->index_file);
+}
diff --git a/repository.h b/repository.h
index 2b757df25..9515cc631 100644
--- a/repository.h
+++ b/repository.h
@@ -2,6 +2,7 @@
 #define REPOSITORY_H
 
 struct config_set;
+struct index_state;
 
 struct repository {
        /* Environment */
@@ -20,6 +21,7 @@ struct repository {
         * ~/.gitconfig, XDG config file and the global /etc/gitconfig)
         */
        struct config_set *config;
+       struct index_state *index;
 
        /* Configurations */
        unsigned ignore_env:1;
@@ -35,4 +37,6 @@ extern char *repo_worktree_path(struct repository *repo, 
const char *path);
 extern int repo_init(struct repository *repo, const char *path);
 extern void repo_clear(struct repository *repo);
 
+extern int repo_read_index(struct repository *repo);
+
 #endif /* REPOSITORY_H */
-- 
2.13.1.508.gb3defc5cc-goog