t5318: avoid unnecessary command substitutions

[thirdparty/git.git] / object-store.h

diff --git a/object-store.h b/object-store.h
index d683112fd7bbab5df7e8cd5656b497cb8fd2bda1..e481f7ad41bd876df3fb98f1578c38f55fc288e5 100644 (file)
--- a/object-store.h
+++ b/object-store.h
@@ -2,6 +2,9 @@
 #define OBJECT_STORE_H
 
 #include "oidmap.h"
+#include "list.h"
+#include "sha1-array.h"
+#include "strbuf.h"
 
 struct alternate_object_database {
        struct alternate_object_database *next;
@@ -103,6 +106,9 @@ struct raw_object_store {
         */
        struct oidmap *replace_map;
 
+       struct commit_graph *commit_graph;
+       unsigned commit_graph_attempted : 1; /* if loading has been attempted */
+
        /*
         * private data
         *
@@ -139,4 +145,121 @@ void sha1_file_name(struct repository *r, struct strbuf *buf, const unsigned cha
 
 void *map_sha1_file(struct repository *r, const unsigned char *sha1, unsigned long *size);
 
+extern void *read_object_file_extended(const struct object_id *oid,
+                                      enum object_type *type,
+                                      unsigned long *size, int lookup_replace);
+static inline void *read_object_file(const struct object_id *oid, enum object_type *type, unsigned long *size)
+{
+       return read_object_file_extended(oid, type, size, 1);
+}
+
+/* Read and unpack an object file into memory, write memory to an object file */
+int oid_object_info(struct repository *r, const struct object_id *, unsigned long *);
+
+extern int hash_object_file(const void *buf, unsigned long len,
+                           const char *type, struct object_id *oid);
+
+extern int write_object_file(const void *buf, unsigned long len,
+                            const char *type, struct object_id *oid);
+
+extern int hash_object_file_literally(const void *buf, unsigned long len,
+                                     const char *type, struct object_id *oid,
+                                     unsigned flags);
+
+extern int pretend_object_file(void *, unsigned long, enum object_type,
+                              struct object_id *oid);
+
+extern int force_object_loose(const struct object_id *oid, time_t mtime);
+
+/*
+ * Open the loose object at path, check its hash, and return the contents,
+ * type, and size. If the object is a blob, then "contents" may return NULL,
+ * to allow streaming of large blobs.
+ *
+ * Returns 0 on success, negative on error (details may be written to stderr).
+ */
+int read_loose_object(const char *path,
+                     const struct object_id *expected_oid,
+                     enum object_type *type,
+                     unsigned long *size,
+                     void **contents);
+
+/*
+ * Convenience for sha1_object_info_extended() with a NULL struct
+ * object_info. OBJECT_INFO_SKIP_CACHED is automatically set; pass
+ * nonzero flags to also set other flags.
+ */
+extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags);
+static inline int has_sha1_file(const unsigned char *sha1)
+{
+       return has_sha1_file_with_flags(sha1, 0);
+}
+
+/* Same as the above, except for struct object_id. */
+extern int has_object_file(const struct object_id *oid);
+extern int has_object_file_with_flags(const struct object_id *oid, int flags);
+
+/*
+ * Return true iff an alternate object database has a loose object
+ * with the specified name.  This function does not respect replace
+ * references.
+ */
+extern int has_loose_object_nonlocal(const struct object_id *);
+
+extern void assert_oid_type(const struct object_id *oid, enum object_type expect);
+
+struct object_info {
+       /* Request */
+       enum object_type *typep;
+       unsigned long *sizep;
+       off_t *disk_sizep;
+       unsigned char *delta_base_sha1;
+       struct strbuf *type_name;
+       void **contentp;
+
+       /* Response */
+       enum {
+               OI_CACHED,
+               OI_LOOSE,
+               OI_PACKED,
+               OI_DBCACHED
+       } whence;
+       union {
+               /*
+                * struct {
+                *      ... Nothing to expose in this case
+                * } cached;
+                * struct {
+                *      ... Nothing to expose in this case
+                * } loose;
+                */
+               struct {
+                       struct packed_git *pack;
+                       off_t offset;
+                       unsigned int is_delta;
+               } packed;
+       } u;
+};
+
+/*
+ * Initializer for a "struct object_info" that wants no items. You may
+ * also memset() the memory to all-zeroes.
+ */
+#define OBJECT_INFO_INIT {NULL}
+
+/* Invoke lookup_replace_object() on the given hash */
+#define OBJECT_INFO_LOOKUP_REPLACE 1
+/* Allow reading from a loose object file of unknown/bogus type */
+#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2
+/* Do not check cached storage */
+#define OBJECT_INFO_SKIP_CACHED 4
+/* Do not retry packed storage after checking packed and loose storage */
+#define OBJECT_INFO_QUICK 8
+/* Do not check loose object */
+#define OBJECT_INFO_IGNORE_LOOSE 16
+
+int oid_object_info_extended(struct repository *r,
+                            const struct object_id *,
+                            struct object_info *, unsigned flags);
+
 #endif /* OBJECT_STORE_H */