upload-pack: add object filtering for partial clone

diff --git a/cache.h b/cache.h
index a916bc79e3c1a77f55764f34f6357478e83b6cb0..69800721324d7e437e8be78e4ffb54a6271c5755 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -4,6 +4,7 @@
 #include "git-compat-util.h"
 #include "strbuf.h"
 #include "hashmap.h"
+#include "mru.h"
 #include "advice.h"
 #include "gettext.h"
 #include "convert.h"
@@ -443,6 +444,7 @@ static inline enum object_type object_type(unsigned int mode)
 #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS"
 #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS"
 #define GIT_QUARANTINE_ENVIRONMENT "GIT_QUARANTINE_PATH"
+#define GIT_OPTIONAL_LOCKS_ENVIRONMENT "GIT_OPTIONAL_LOCKS"
 
 /*
  * This environment variable is expected to contain a boolean indicating
@@ -782,6 +784,11 @@ extern int protect_ntfs;
  */
 extern int ref_paranoia;
 
+/*
+ * Returns the boolean value of $GIT_OPTIONAL_LOCKS (or the default value).
+ */
+int use_optional_locks(void);
+
 /*
  * The character that begins a commented line in user-editable file
  * that is subject to stripspace.
@@ -853,10 +860,12 @@ extern int grafts_replace_parents;
 #define GIT_REPO_VERSION 0
 #define GIT_REPO_VERSION_READ 1
 extern int repository_format_precious_objects;
+extern char *repository_format_partial_clone;
 
 struct repository_format {
        int version;
        int precious_objects;
+       char *partial_clone; /* value of extensions.partialclone */
        int is_bare;
        char *work_tree;
        struct string_list unknown_extensions;
@@ -1243,8 +1252,8 @@ static inline unsigned int hexval(unsigned char c)
  */
 static inline int hex2chr(const char *s)
 {
-       int val = hexval(s[0]);
-       return (val < 0) ? val : (val << 4) | hexval(s[1]);
+       unsigned int val = hexval(s[0]);
+       return (val & ~0xf) ? val : (val << 4) | hexval(s[1]);
 }
 
 /* Convert to/from hex/sha1 representation */
@@ -1578,7 +1587,8 @@ extern struct packed_git {
        unsigned pack_local:1,
                 pack_keep:1,
                 freshened:1,
-                do_not_close:1;
+                do_not_close:1,
+                pack_promisor:1;
        unsigned char sha1[20];
        struct revindex_entry *revindex;
        /* something like ".git/objects/pack/xxxxx.pack" */
@@ -1589,8 +1599,7 @@ extern struct packed_git {
  * A most-recently-used ordered version of the packed_git list, which can
  * be iterated instead of packed_git (and marked via mru_mark).
  */
-struct mru;
-extern struct mru *packed_git_mru;
+extern struct mru packed_git_mru;
 
 struct pack_entry {
        off_t offset;
@@ -1718,6 +1727,14 @@ struct object_info {
 #define OBJECT_INFO_QUICK 8
 extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags);
 
+/*
+ * Set this to 0 to prevent sha1_object_info_extended() from fetching missing
+ * blobs. This has a difference only if extensions.partialClone is set.
+ *
+ * Its default value is 1.
+ */
+extern int fetch_if_missing;
+
 /* Dumb servers support */
 extern int update_server_info(int);