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-rw-r--r--repo-settings.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/repo-settings.c b/repo-settings.c
new file mode 100644
index 0000000..525f69c
--- /dev/null
+++ b/repo-settings.c
@@ -0,0 +1,122 @@
+#include "git-compat-util.h"
+#include "config.h"
+#include "repository.h"
+#include "midx.h"
+#include "compat/fsmonitor/fsm-listen.h"
+
+static void repo_cfg_bool(struct repository *r, const char *key, int *dest,
+ int def)
+{
+ if (repo_config_get_bool(r, key, dest))
+ *dest = def;
+}
+
+static void repo_cfg_int(struct repository *r, const char *key, int *dest,
+ int def)
+{
+ if (repo_config_get_int(r, key, dest))
+ *dest = def;
+}
+
+void prepare_repo_settings(struct repository *r)
+{
+ int experimental;
+ int value;
+ const char *strval;
+ int manyfiles;
+
+ if (!r->gitdir)
+ BUG("Cannot add settings for uninitialized repository");
+
+ if (r->settings.initialized++)
+ return;
+
+ /* Defaults */
+ r->settings.index_version = -1;
+ r->settings.core_untracked_cache = UNTRACKED_CACHE_KEEP;
+ r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE;
+
+ /* Booleans config or default, cascades to other settings */
+ repo_cfg_bool(r, "feature.manyfiles", &manyfiles, 0);
+ repo_cfg_bool(r, "feature.experimental", &experimental, 0);
+
+ /* Defaults modified by feature.* */
+ if (experimental) {
+ r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
+ r->settings.pack_use_bitmap_boundary_traversal = 1;
+ }
+ if (manyfiles) {
+ r->settings.index_version = 4;
+ r->settings.index_skip_hash = 1;
+ r->settings.core_untracked_cache = UNTRACKED_CACHE_WRITE;
+ }
+
+ /* Commit graph config or default, does not cascade (simple) */
+ repo_cfg_bool(r, "core.commitgraph", &r->settings.core_commit_graph, 1);
+ repo_cfg_int(r, "commitgraph.generationversion", &r->settings.commit_graph_generation_version, 2);
+ repo_cfg_bool(r, "commitgraph.readchangedpaths", &r->settings.commit_graph_read_changed_paths, 1);
+ repo_cfg_bool(r, "gc.writecommitgraph", &r->settings.gc_write_commit_graph, 1);
+ repo_cfg_bool(r, "fetch.writecommitgraph", &r->settings.fetch_write_commit_graph, 0);
+
+ /* Boolean config or default, does not cascade (simple) */
+ repo_cfg_bool(r, "pack.usesparse", &r->settings.pack_use_sparse, 1);
+ repo_cfg_bool(r, "core.multipackindex", &r->settings.core_multi_pack_index, 1);
+ repo_cfg_bool(r, "index.sparse", &r->settings.sparse_index, 0);
+ repo_cfg_bool(r, "index.skiphash", &r->settings.index_skip_hash, r->settings.index_skip_hash);
+ repo_cfg_bool(r, "pack.readreverseindex", &r->settings.pack_read_reverse_index, 1);
+ repo_cfg_bool(r, "pack.usebitmapboundarytraversal",
+ &r->settings.pack_use_bitmap_boundary_traversal,
+ r->settings.pack_use_bitmap_boundary_traversal);
+ repo_cfg_bool(r, "core.usereplacerefs", &r->settings.read_replace_refs, 1);
+
+ /*
+ * The GIT_TEST_MULTI_PACK_INDEX variable is special in that
+ * either it *or* the config sets
+ * r->settings.core_multi_pack_index if true. We don't take
+ * the environment variable if it exists (even if false) over
+ * any config, as in most other cases.
+ */
+ if (git_env_bool(GIT_TEST_MULTI_PACK_INDEX, 0))
+ r->settings.core_multi_pack_index = 1;
+
+ /*
+ * Non-boolean config
+ */
+ if (!repo_config_get_int(r, "index.version", &value))
+ r->settings.index_version = value;
+
+ if (!repo_config_get_string_tmp(r, "core.untrackedcache", &strval)) {
+ int v = git_parse_maybe_bool(strval);
+
+ /*
+ * If it's set to "keep", or some other non-boolean
+ * value then "v < 0". Then we do nothing and keep it
+ * at the default of UNTRACKED_CACHE_KEEP.
+ */
+ if (v >= 0)
+ r->settings.core_untracked_cache = v ?
+ UNTRACKED_CACHE_WRITE : UNTRACKED_CACHE_REMOVE;
+ }
+
+ if (!repo_config_get_string_tmp(r, "fetch.negotiationalgorithm", &strval)) {
+ int fetch_default = r->settings.fetch_negotiation_algorithm;
+ if (!strcasecmp(strval, "skipping"))
+ r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
+ else if (!strcasecmp(strval, "noop"))
+ r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_NOOP;
+ else if (!strcasecmp(strval, "consecutive"))
+ r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE;
+ else if (!strcasecmp(strval, "default"))
+ r->settings.fetch_negotiation_algorithm = fetch_default;
+ else
+ die("unknown fetch negotiation algorithm '%s'", strval);
+ }
+
+ /*
+ * This setting guards all index reads to require a full index
+ * over a sparse index. After suitable guards are placed in the
+ * codebase around uses of the index, this setting will be
+ * removed.
+ */
+ r->settings.command_requires_full_index = 1;
+}