connected.h

   1 #ifndef CONNECTED_H
   2 #define CONNECTED_H
   3
   4 struct object_id;
   5 struct transport;
   6
   7 /*
   8  * Take callback data, and return next object name in the buffer.
   9  * When called after returning the name for the last object, return -1
  10  * to signal EOF, otherwise return 0.
  11  */
  12 typedef int (*oid_iterate_fn)(void *, struct object_id *oid);
  13
  14 /*
  15  * Named-arguments struct for check_connected. All arguments are
  16  * optional, and can be left to defaults as set by CHECK_CONNECTED_INIT.
  17  */
  18 struct check_connected_options {
  19         /* Avoid printing any errors to stderr. */
  20         int quiet;
  21
  22         /* --shallow-file to pass to rev-list sub-process */
  23         const char *shallow_file;
  24
  25         /* Transport whose objects we are checking, if available. */
  26         struct transport *transport;
  27
  28         /*
  29          * If non-zero, send error messages to this descriptor rather
  30          * than stderr. The descriptor is closed before check_connected
  31          * returns.
  32          */
  33         int err_fd;
  34
  35         /* If non-zero, show progress as we traverse the objects. */
  36         int progress;
  37
  38         /*
  39          * Insert these variables into the environment of the child process.
  40          */
  41         const char **env;
  42
  43         /*
  44          * If non-zero, check the ancestry chain completely, not stopping at
  45          * any existing ref. This is necessary when deepening existing refs
  46          * during a fetch.
  47          */
  48         unsigned is_deepening_fetch : 1;
  49
  50         /*
  51          * If non-zero, only check the top-level objects referenced by the
  52          * wanted refs (passed in as cb_data). This is useful for partial
  53          * clones, where enumerating and excluding all promisor objects is very
  54          * slow and the commit-walk itself becomes a no-op.
  55          */
  56         unsigned check_refs_only : 1;
  57 };
  58
  59 #define CHECK_CONNECTED_INIT { 0 }
  60
  61 /*
  62  * Make sure that all given objects and all objects reachable from them
  63  * either exist in our object store or (if the repository is a partial
  64  * clone) are promised to be available.
  65  *
  66  * Return 0 if Ok, non zero otherwise (i.e. some missing objects)
  67  *
  68  * If "opt" is NULL, behaves as if CHECK_CONNECTED_INIT was passed.
  69  */
  70 int check_connected(oid_iterate_fn fn, void *cb_data,
  71                     struct check_connected_options *opt);
  72
  73 #endif /* CONNECTED_H */