git

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