repo-settings.c

   1 #include "git-compat-util.h"
   2 #include "config.h"
   3 #include "repository.h"
   4 #include "midx.h"
   5
   6 static void repo_cfg_bool(struct repository *r, const char *key, int *dest,
   7                           int def)
   8 {
   9         if (repo_config_get_bool(r, key, dest))
  10                 *dest = def;
  11 }
  12
  13 static void repo_cfg_int(struct repository *r, const char *key, int *dest,
  14                          int def)
  15 {
  16         if (repo_config_get_int(r, key, dest))
  17                 *dest = def;
  18 }
  19
  20 void prepare_repo_settings(struct repository *r)
  21 {
  22         int experimental;
  23         int value;
  24         const char *strval;
  25         int manyfiles;
  26         int read_changed_paths;
  27
  28         if (!r->gitdir)
  29                 BUG("Cannot add settings for uninitialized repository");
  30
  31         if (r->settings.initialized++)
  32                 return;
  33
  34         /* Defaults */
  35         r->settings.index_version = -1;
  36         r->settings.core_untracked_cache = UNTRACKED_CACHE_KEEP;
  37         r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE;
  38
  39         /* Booleans config or default, cascades to other settings */
  40         repo_cfg_bool(r, "feature.manyfiles", &manyfiles, 0);
  41         repo_cfg_bool(r, "feature.experimental", &experimental, 0);
  42
  43         /* Defaults modified by feature.* */
  44         if (experimental) {
  45                 r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
  46                 r->settings.pack_use_bitmap_boundary_traversal = 1;
  47                 r->settings.pack_use_multi_pack_reuse = 1;
  48         }
  49         if (manyfiles) {
  50                 r->settings.index_version = 4;
  51                 r->settings.index_skip_hash = 1;
  52                 r->settings.core_untracked_cache = UNTRACKED_CACHE_WRITE;
  53         }
  54
  55         /* Commit graph config or default, does not cascade (simple) */
  56         repo_cfg_bool(r, "core.commitgraph", &r->settings.core_commit_graph, 1);
  57         repo_cfg_int(r, "commitgraph.generationversion", &r->settings.commit_graph_generation_version, 2);
  58         repo_cfg_bool(r, "commitgraph.readchangedpaths", &read_changed_paths, 1);
  59         repo_cfg_int(r, "commitgraph.changedpathsversion",
  60                      &r->settings.commit_graph_changed_paths_version,
  61                      read_changed_paths ? -1 : 0);
  62         repo_cfg_bool(r, "gc.writecommitgraph", &r->settings.gc_write_commit_graph, 1);
  63         repo_cfg_bool(r, "fetch.writecommitgraph", &r->settings.fetch_write_commit_graph, 0);
  64
  65         /* Boolean config or default, does not cascade (simple)  */
  66         repo_cfg_bool(r, "pack.usesparse", &r->settings.pack_use_sparse, 1);
  67         repo_cfg_bool(r, "core.multipackindex", &r->settings.core_multi_pack_index, 1);
  68         repo_cfg_bool(r, "index.sparse", &r->settings.sparse_index, 0);
  69         repo_cfg_bool(r, "index.skiphash", &r->settings.index_skip_hash, r->settings.index_skip_hash);
  70         repo_cfg_bool(r, "pack.readreverseindex", &r->settings.pack_read_reverse_index, 1);
  71         repo_cfg_bool(r, "pack.usebitmapboundarytraversal",
  72                       &r->settings.pack_use_bitmap_boundary_traversal,
  73                       r->settings.pack_use_bitmap_boundary_traversal);
  74         repo_cfg_bool(r, "core.usereplacerefs", &r->settings.read_replace_refs, 1);
  75
  76         /*
  77          * The GIT_TEST_MULTI_PACK_INDEX variable is special in that
  78          * either it *or* the config sets
  79          * r->settings.core_multi_pack_index if true. We don't take
  80          * the environment variable if it exists (even if false) over
  81          * any config, as in most other cases.
  82          */
  83         if (git_env_bool(GIT_TEST_MULTI_PACK_INDEX, 0))
  84                 r->settings.core_multi_pack_index = 1;
  85
  86         /*
  87          * Non-boolean config
  88          */
  89         if (!repo_config_get_int(r, "index.version", &value))
  90                 r->settings.index_version = value;
  91
  92         if (!repo_config_get_string_tmp(r, "core.untrackedcache", &strval)) {
  93                 int v = git_parse_maybe_bool(strval);
  94
  95                 /*
  96                  * If it's set to "keep", or some other non-boolean
  97                  * value then "v < 0". Then we do nothing and keep it
  98                  * at the default of UNTRACKED_CACHE_KEEP.
  99                  */
 100                 if (v >= 0)
 101                         r->settings.core_untracked_cache = v ?
 102                                 UNTRACKED_CACHE_WRITE : UNTRACKED_CACHE_REMOVE;
 103         }
 104
 105         if (!repo_config_get_string_tmp(r, "fetch.negotiationalgorithm", &strval)) {
 106                 int fetch_default = r->settings.fetch_negotiation_algorithm;
 107                 if (!strcasecmp(strval, "skipping"))
 108                         r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
 109                 else if (!strcasecmp(strval, "noop"))
 110                         r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_NOOP;
 111                 else if (!strcasecmp(strval, "consecutive"))
 112                         r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE;
 113                 else if (!strcasecmp(strval, "default"))
 114                         r->settings.fetch_negotiation_algorithm = fetch_default;
 115                 else
 116                         die("unknown fetch negotiation algorithm '%s'", strval);
 117         }
 118
 119         /*
 120          * This setting guards all index reads to require a full index
 121          * over a sparse index. After suitable guards are placed in the
 122          * codebase around uses of the index, this setting will be
 123          * removed.
 124          */
 125         r->settings.command_requires_full_index = 1;
 126 }