Revision 25ab004c53cdcfea485e5bf437aeaa74df47196d authored by Junio C Hamano on 17 October 2016, 20:25:20 UTC, committed by Junio C Hamano on 17 October 2016, 20:25:20 UTC
In order for the receiving end of "git push" to inspect the received history and decide to reject the push, the objects sent from the sending end need to be made available to the hook and the mechanism for the connectivity check, and this was done traditionally by storing the objects in the receiving repository and letting "git gc" to expire it. Instead, store the newly received objects in a temporary area, and make them available by reusing the alternate object store mechanism to them only while we decide if we accept the check, and once we decide, either migrate them to the repository or purge them immediately. * jk/quarantine-received-objects: tmp-objdir: do not migrate files starting with '.' tmp-objdir: put quarantine information in the environment receive-pack: quarantine objects until pre-receive accepts tmp-objdir: introduce API for temporary object directories check_connected: accept an env argument
tree-walk.h
#ifndef TREE_WALK_H
#define TREE_WALK_H
struct name_entry {
const struct object_id *oid;
const char *path;
unsigned int mode;
};
struct tree_desc {
const void *buffer;
struct name_entry entry;
unsigned int size;
};
static inline const struct object_id *tree_entry_extract(struct tree_desc *desc, const char **pathp, unsigned int *modep)
{
*pathp = desc->entry.path;
*modep = desc->entry.mode;
return desc->entry.oid;
}
static inline int tree_entry_len(const struct name_entry *ne)
{
return (const char *)ne->oid - ne->path - 1;
}
/*
* The _gently versions of these functions warn and return false on a
* corrupt tree entry rather than dying,
*/
void update_tree_entry(struct tree_desc *);
int update_tree_entry_gently(struct tree_desc *);
void init_tree_desc(struct tree_desc *desc, const void *buf, unsigned long size);
int init_tree_desc_gently(struct tree_desc *desc, const void *buf, unsigned long size);
/*
* Helper function that does both tree_entry_extract() and update_tree_entry()
* and returns true for success
*/
int tree_entry(struct tree_desc *, struct name_entry *);
int tree_entry_gently(struct tree_desc *, struct name_entry *);
void *fill_tree_descriptor(struct tree_desc *desc, const unsigned char *sha1);
struct traverse_info;
typedef int (*traverse_callback_t)(int n, unsigned long mask, unsigned long dirmask, struct name_entry *entry, struct traverse_info *);
int traverse_trees(int n, struct tree_desc *t, struct traverse_info *info);
enum follow_symlinks_result {
FOUND = 0, /* This includes out-of-tree links */
MISSING_OBJECT = -1, /* The initial symlink is missing */
DANGLING_SYMLINK = -2, /*
* The initial symlink is there, but
* (transitively) points to a missing
* in-tree file
*/
SYMLINK_LOOP = -3,
NOT_DIR = -4, /*
* Somewhere along the symlink chain, a path is
* requested which contains a file as a
* non-final element.
*/
};
enum follow_symlinks_result get_tree_entry_follow_symlinks(unsigned char *tree_sha1, const char *name, unsigned char *result, struct strbuf *result_path, unsigned *mode);
struct traverse_info {
const char *traverse_path;
struct traverse_info *prev;
struct name_entry name;
int pathlen;
struct pathspec *pathspec;
unsigned long df_conflicts;
traverse_callback_t fn;
void *data;
int show_all_errors;
};
int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
extern char *make_traverse_path(char *path, const struct traverse_info *info, const struct name_entry *n);
extern void setup_traverse_info(struct traverse_info *info, const char *base);
static inline int traverse_path_len(const struct traverse_info *info, const struct name_entry *n)
{
return info->pathlen + tree_entry_len(n);
}
/* in general, positive means "kind of interesting" */
enum interesting {
all_entries_not_interesting = -1, /* no, and no subsequent entries will be either */
entry_not_interesting = 0,
entry_interesting = 1,
all_entries_interesting = 2 /* yes, and all subsequent entries will be */
};
extern enum interesting tree_entry_interesting(const struct name_entry *,
struct strbuf *, int,
const struct pathspec *ps);
#endif
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...