[thirdparty/git.git] / repo-settings.c

#include "git-compat-util.h"
#include "config.h"
#include "repo-settings.h"
#include "repository.h"
#include "midx.h"
#include "pack-objects.h"
#include "setup.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;
}

static void repo_cfg_ulong(struct repository *r, const char *key, unsigned long *dest,
			   unsigned long def)
{
	if (repo_config_get_ulong(r, key, dest))
		*dest = def;
}

void prepare_repo_settings(struct repository *r)
{
	int experimental;
	int value;
	const char *strval;
	int manyfiles;
	int read_changed_paths;
	unsigned long ulongval;

	if (!r->gitdir)
		BUG("Cannot add settings for uninitialized repository");

	if (r->settings.initialized)
		return;

	repo_settings_clear(r);
	r->settings.initialized++;

	/* 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;
		r->settings.pack_use_multi_pack_reuse = 1;
		r->settings.pack_use_path_walk = 1;
	}
	if (manyfiles) {
		r->settings.index_version = 4;
		r->settings.index_skip_hash = 1;
		r->settings.core_untracked_cache = UNTRACKED_CACHE_WRITE;
		r->settings.pack_use_path_walk = 1;
	}

	/* 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", &read_changed_paths, 1);
	repo_cfg_int(r, "commitgraph.changedpathsversion",
		     &r->settings.commit_graph_changed_paths_version,
		     read_changed_paths ? -1 : 0);
	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, "pack.usepathwalk", &r->settings.pack_use_path_walk, 0);
	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;

	if (!repo_config_get_ulong(r, "core.deltabasecachelimit", &ulongval))
		r->settings.delta_base_cache_limit = ulongval;

	if (!repo_config_get_ulong(r, "core.packedgitwindowsize", &ulongval)) {
		int pgsz_x2 = getpagesize() * 2;

		/* This value must be multiple of (pagesize * 2) */
		ulongval /= pgsz_x2;
		if (ulongval < 1)
			ulongval = 1;
		r->settings.packed_git_window_size = ulongval * pgsz_x2;
	}

	if (!repo_config_get_ulong(r, "core.packedgitlimit", &ulongval))
		r->settings.packed_git_limit = ulongval;
}

void repo_settings_clear(struct repository *r)
{
	struct repo_settings empty = REPO_SETTINGS_INIT;
	FREE_AND_NULL(r->settings.fsmonitor);
	FREE_AND_NULL(r->settings.hooks_path);
	r->settings = empty;
}

unsigned long repo_settings_get_big_file_threshold(struct repository *repo)
{
	if (!repo->settings.big_file_threshold)
		repo_cfg_ulong(repo, "core.bigfilethreshold",
			       &repo->settings.big_file_threshold, 512 * 1024 * 1024);
	return repo->settings.big_file_threshold;
}

void repo_settings_set_big_file_threshold(struct repository *repo, unsigned long value)
{
	repo->settings.big_file_threshold = value;
}

enum log_refs_config repo_settings_get_log_all_ref_updates(struct repository *repo)
{
	const char *value;

	if (!repo_config_get_string_tmp(repo, "core.logallrefupdates", &value)) {
		if (value && !strcasecmp(value, "always"))
			return LOG_REFS_ALWAYS;
		else if (git_config_bool("core.logallrefupdates", value))
			return LOG_REFS_NORMAL;
		else
			return LOG_REFS_NONE;
	}

	return LOG_REFS_UNSET;
}

int repo_settings_get_warn_ambiguous_refs(struct repository *repo)
{
	prepare_repo_settings(repo);
	if (repo->settings.warn_ambiguous_refs < 0)
		repo_cfg_bool(repo, "core.warnambiguousrefs",
			      &repo->settings.warn_ambiguous_refs, 1);
	return repo->settings.warn_ambiguous_refs;
}

const char *repo_settings_get_hooks_path(struct repository *repo)
{
	if (!repo->settings.hooks_path)
		repo_config_get_pathname(repo, "core.hookspath", &repo->settings.hooks_path);
	return repo->settings.hooks_path;
}

int repo_settings_get_shared_repository(struct repository *repo)
{
	if (!repo->settings.shared_repository_initialized) {
		const char *var = "core.sharedrepository";
		const char *value;
		if (!repo_config_get_value(repo, var, &value))
			repo->settings.shared_repository = git_config_perm(var, value);
		else
			repo->settings.shared_repository = PERM_UMASK;
		repo->settings.shared_repository_initialized = 1;
	}
	return repo->settings.shared_repository;
}

void repo_settings_set_shared_repository(struct repository *repo, int value)
{
	repo->settings.shared_repository = value;
	repo->settings.shared_repository_initialized = 1;
}

void repo_settings_reset_shared_repository(struct repository *repo)
{
	repo->settings.shared_repository_initialized = 0;
}
Commit	Line	Data
	1	#include "git-compat-util.h"
	2	#include "config.h"
	3	#include "repo-settings.h"
	4	#include "repository.h"
	5	#include "midx.h"
	6	#include "pack-objects.h"
	7	#include "setup.h"
	8
	9	static void repo_cfg_bool(struct repository r, const char key, int *dest,
	10	int def)
	11	{
	12	if (repo_config_get_bool(r, key, dest))
	13	*dest = def;
	14	}
	15
	16	static void repo_cfg_int(struct repository r, const char key, int *dest,
	17	int def)
	18	{
	19	if (repo_config_get_int(r, key, dest))
	20	*dest = def;
	21	}
	22
	23	static void repo_cfg_ulong(struct repository r, const char key, unsigned long *dest,
	24	unsigned long def)
	25	{
	26	if (repo_config_get_ulong(r, key, dest))
	27	*dest = def;
	28	}
	29
	30	void prepare_repo_settings(struct repository *r)
	31	{
	32	int experimental;
	33	int value;
	34	const char *strval;
	35	int manyfiles;
	36	int read_changed_paths;
	37	unsigned long ulongval;
	38
	39	if (!r->gitdir)
	40	BUG("Cannot add settings for uninitialized repository");
	41
	42	if (r->settings.initialized)
	43	return;
	44
	45	repo_settings_clear(r);
	46	r->settings.initialized++;
	47
	48	/* Booleans config or default, cascades to other settings */
	49	repo_cfg_bool(r, "feature.manyfiles", &manyfiles, 0);
	50	repo_cfg_bool(r, "feature.experimental", &experimental, 0);
	51
	52	/* Defaults modified by feature.* */
	53	if (experimental) {
	54	r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
	55	r->settings.pack_use_bitmap_boundary_traversal = 1;
	56	r->settings.pack_use_multi_pack_reuse = 1;
	57	r->settings.pack_use_path_walk = 1;
	58	}
	59	if (manyfiles) {
	60	r->settings.index_version = 4;
	61	r->settings.index_skip_hash = 1;
	62	r->settings.core_untracked_cache = UNTRACKED_CACHE_WRITE;
	63	r->settings.pack_use_path_walk = 1;
	64	}
	65
	66	/* Commit graph config or default, does not cascade (simple) */
	67	repo_cfg_bool(r, "core.commitgraph", &r->settings.core_commit_graph, 1);
	68	repo_cfg_int(r, "commitgraph.generationversion", &r->settings.commit_graph_generation_version, 2);
	69	repo_cfg_bool(r, "commitgraph.readchangedpaths", &read_changed_paths, 1);
	70	repo_cfg_int(r, "commitgraph.changedpathsversion",
	71	&r->settings.commit_graph_changed_paths_version,
	72	read_changed_paths ? -1 : 0);
	73	repo_cfg_bool(r, "gc.writecommitgraph", &r->settings.gc_write_commit_graph, 1);
	74	repo_cfg_bool(r, "fetch.writecommitgraph", &r->settings.fetch_write_commit_graph, 0);
	75
	76	/* Boolean config or default, does not cascade (simple) */
	77	repo_cfg_bool(r, "pack.usesparse", &r->settings.pack_use_sparse, 1);
	78	repo_cfg_bool(r, "pack.usepathwalk", &r->settings.pack_use_path_walk, 0);
	79	repo_cfg_bool(r, "core.multipackindex", &r->settings.core_multi_pack_index, 1);
	80	repo_cfg_bool(r, "index.sparse", &r->settings.sparse_index, 0);
	81	repo_cfg_bool(r, "index.skiphash", &r->settings.index_skip_hash, r->settings.index_skip_hash);
	82	repo_cfg_bool(r, "pack.readreverseindex", &r->settings.pack_read_reverse_index, 1);
	83	repo_cfg_bool(r, "pack.usebitmapboundarytraversal",
	84	&r->settings.pack_use_bitmap_boundary_traversal,
	85	r->settings.pack_use_bitmap_boundary_traversal);
	86	repo_cfg_bool(r, "core.usereplacerefs", &r->settings.read_replace_refs, 1);
	87
	88	/*
	89	* The GIT_TEST_MULTI_PACK_INDEX variable is special in that
	90	* either it or the config sets
	91	* r->settings.core_multi_pack_index if true. We don't take
	92	* the environment variable if it exists (even if false) over
	93	* any config, as in most other cases.
	94	*/
	95	if (git_env_bool(GIT_TEST_MULTI_PACK_INDEX, 0))
	96	r->settings.core_multi_pack_index = 1;
	97
	98	/*
	99	* Non-boolean config
	100	*/
	101	if (!repo_config_get_int(r, "index.version", &value))
	102	r->settings.index_version = value;
	103
	104	if (!repo_config_get_string_tmp(r, "core.untrackedcache", &strval)) {
	105	int v = git_parse_maybe_bool(strval);
	106
	107	/*
	108	* If it's set to "keep", or some other non-boolean
	109	* value then "v < 0". Then we do nothing and keep it
	110	* at the default of UNTRACKED_CACHE_KEEP.
	111	*/
	112	if (v >= 0)
	113	r->settings.core_untracked_cache = v ?
	114	UNTRACKED_CACHE_WRITE : UNTRACKED_CACHE_REMOVE;
	115	}
	116
	117	if (!repo_config_get_string_tmp(r, "fetch.negotiationalgorithm", &strval)) {
	118	int fetch_default = r->settings.fetch_negotiation_algorithm;
	119	if (!strcasecmp(strval, "skipping"))
	120	r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
	121	else if (!strcasecmp(strval, "noop"))
	122	r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_NOOP;
	123	else if (!strcasecmp(strval, "consecutive"))
	124	r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE;
	125	else if (!strcasecmp(strval, "default"))
	126	r->settings.fetch_negotiation_algorithm = fetch_default;
	127	else
	128	die("unknown fetch negotiation algorithm '%s'", strval);
	129	}
	130
	131	/*
	132	* This setting guards all index reads to require a full index
	133	* over a sparse index. After suitable guards are placed in the
	134	* codebase around uses of the index, this setting will be
	135	* removed.
	136	*/
	137	r->settings.command_requires_full_index = 1;
	138
	139	if (!repo_config_get_ulong(r, "core.deltabasecachelimit", &ulongval))
	140	r->settings.delta_base_cache_limit = ulongval;
	141
	142	if (!repo_config_get_ulong(r, "core.packedgitwindowsize", &ulongval)) {
	143	int pgsz_x2 = getpagesize() * 2;
	144
	145	/* This value must be multiple of (pagesize * 2) */
	146	ulongval /= pgsz_x2;
	147	if (ulongval < 1)
	148	ulongval = 1;
	149	r->settings.packed_git_window_size = ulongval * pgsz_x2;
	150	}
	151
	152	if (!repo_config_get_ulong(r, "core.packedgitlimit", &ulongval))
	153	r->settings.packed_git_limit = ulongval;
	154	}
	155
	156	void repo_settings_clear(struct repository *r)
	157	{
	158	struct repo_settings empty = REPO_SETTINGS_INIT;
	159	FREE_AND_NULL(r->settings.fsmonitor);
	160	FREE_AND_NULL(r->settings.hooks_path);
	161	r->settings = empty;
	162	}
	163
	164	unsigned long repo_settings_get_big_file_threshold(struct repository *repo)
	165	{
	166	if (!repo->settings.big_file_threshold)
	167	repo_cfg_ulong(repo, "core.bigfilethreshold",
	168	&repo->settings.big_file_threshold, 512 * 1024 * 1024);
	169	return repo->settings.big_file_threshold;
	170	}
	171
	172	void repo_settings_set_big_file_threshold(struct repository *repo, unsigned long value)
	173	{
	174	repo->settings.big_file_threshold = value;
	175	}
	176
	177	enum log_refs_config repo_settings_get_log_all_ref_updates(struct repository *repo)
	178	{
	179	const char *value;
	180
	181	if (!repo_config_get_string_tmp(repo, "core.logallrefupdates", &value)) {
	182	if (value && !strcasecmp(value, "always"))
	183	return LOG_REFS_ALWAYS;
	184	else if (git_config_bool("core.logallrefupdates", value))
	185	return LOG_REFS_NORMAL;
	186	else
	187	return LOG_REFS_NONE;
	188	}
	189
	190	return LOG_REFS_UNSET;
	191	}
	192
	193	int repo_settings_get_warn_ambiguous_refs(struct repository *repo)
	194	{
	195	prepare_repo_settings(repo);
	196	if (repo->settings.warn_ambiguous_refs < 0)
	197	repo_cfg_bool(repo, "core.warnambiguousrefs",
	198	&repo->settings.warn_ambiguous_refs, 1);
	199	return repo->settings.warn_ambiguous_refs;
	200	}
	201
	202	const char repo_settings_get_hooks_path(struct repository repo)
	203	{
	204	if (!repo->settings.hooks_path)
	205	repo_config_get_pathname(repo, "core.hookspath", &repo->settings.hooks_path);
	206	return repo->settings.hooks_path;
	207	}
	208
	209	int repo_settings_get_shared_repository(struct repository *repo)
	210	{
	211	if (!repo->settings.shared_repository_initialized) {
	212	const char *var = "core.sharedrepository";
	213	const char *value;
	214	if (!repo_config_get_value(repo, var, &value))
	215	repo->settings.shared_repository = git_config_perm(var, value);
	216	else
	217	repo->settings.shared_repository = PERM_UMASK;
	218	repo->settings.shared_repository_initialized = 1;
	219	}
	220	return repo->settings.shared_repository;
	221	}
	222
	223	void repo_settings_set_shared_repository(struct repository *repo, int value)
	224	{
	225	repo->settings.shared_repository = value;
	226	repo->settings.shared_repository_initialized = 1;
	227	}
	228
	229	void repo_settings_reset_shared_repository(struct repository *repo)
	230	{
	231	repo->settings.shared_repository_initialized = 0;
	232	}