repo-settings.c

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