commit: add repository argument to lookup_commit_graft
[git/git.git] / environment.c
CommitLineData
e1b10391
LT
1/*
2 * We put all the git config variables in this same object
3 * file, so that programs can link against the config parser
4 * without having to link against all the rest of git.
5 *
6 * In particular, no need to bring in libz etc unless needed,
7 * even if you might want to know where the git directory etc
8 * are.
9 */
10#include "cache.h"
c14c234f 11#include "repository.h"
b2141fc1 12#include "config.h"
a1bea2c1 13#include "refs.h"
273c7032 14#include "fmt-merge-msg.h"
069c0532 15#include "commit.h"
357a03eb 16#include "argv-array.h"
90c62155 17#include "object-store.h"
e1b10391 18
e1b10391 19int trust_executable_bit = 1;
1ce4790b 20int trust_ctime = 1;
c08e4d5b 21int check_stat = 1;
78a8d641 22int has_symlinks = 1;
e6c587c7 23int minimum_abbrev = 4, default_abbrev = -1;
0a9b88b7 24int ignore_case;
96f1e58f
DR
25int assume_unchanged;
26int prefer_symlink_refs;
7d1864ce 27int is_bare_repository_cfg = -1; /* unspecified */
1b371f56 28int warn_ambiguous_refs = 1;
25fba78d 29int warn_on_object_refname_ambiguity = 1;
49672f26 30int ref_paranoia = -1;
067fbd41 31int repository_format_precious_objects;
75b97fec 32char *repository_format_partial_clone;
1e1e39b3 33const char *core_partial_clone_filter_default;
1a8f2741 34const char *git_commit_encoding;
3a55602e 35const char *git_log_output_encoding;
96f1e58f 36const char *apply_default_whitespace;
86c91f91 37const char *apply_default_ignorewhitespace;
64589a03 38const char *git_attributes_file;
867ad08a 39const char *git_hooks_path;
960ccca6
DH
40int zlib_compression_level = Z_BEST_SPEED;
41int core_compression_level;
8de7eeb5 42int pack_compression_level = Z_DEFAULT_COMPRESSION;
aafe9fba 43int fsync_object_files;
8c82534d
SP
44size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
45size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
4874f544 46size_t delta_base_cache_limit = 96 * 1024 * 1024;
15366280 47unsigned long big_file_threshold = 512 * 1024 * 1024;
aa086eb8 48int pager_use_color = 1;
ee9601e6 49const char *editor_program;
d3e7da89 50const char *askpass_program;
dfb068be 51const char *excludes_file;
fd6cce9e 52enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
c3c36d7d 53int check_replace_refs = 1; /* NEEDSWORK: rename to read_replace_refs */
58d121b2 54char *git_replace_ref_base;
ec70f52f 55enum eol core_eol = EOL_UNSET;
8462ff43 56int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN;
cf1b7869 57unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
9ed36cfa 58enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
c998ae9b 59enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
f25950f3 60enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
348df166
JS
61#ifndef OBJECT_CREATION_MODE
62#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
be66a6c4 63#endif
348df166 64enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
a97a7468 65char *notes_ref_name;
7f3140cd 66int grafts_replace_parents = 1;
08aefc9e 67int core_apply_sparse_checkout;
898eacd8 68int merge_log_config = -1;
76759c7d 69int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
568508e7 70unsigned long pack_size_limit_cfg;
f30afdab 71enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
341fb286 72enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET;
e1b10391 73
a42643aa
JK
74#ifndef PROTECT_HFS_DEFAULT
75#define PROTECT_HFS_DEFAULT 0
76#endif
77int protect_hfs = PROTECT_HFS_DEFAULT;
78
2b4c6efc
JS
79#ifndef PROTECT_NTFS_DEFAULT
80#define PROTECT_NTFS_DEFAULT 0
81#endif
82int protect_ntfs = PROTECT_NTFS_DEFAULT;
883e248b 83const char *core_fsmonitor;
2b4c6efc 84
eff80a9f
JH
85/*
86 * The character that begins a commented line in user-editable file
87 * that is subject to stripspace.
88 */
89char comment_line_char = '#';
84c9dc2c 90int auto_comment_line_char;
eff80a9f 91
671c9b7e 92/* Parallel index stat data preload? */
299e2987 93int core_preload_index = 1;
671c9b7e 94
dae6c322
CC
95/*
96 * This is a hack for test programs like test-dump-untracked-cache to
97 * ensure that they do not modify the untracked cache when reading it.
98 * Do not use it otherwise!
99 */
100int ignore_untracked_cache_config;
101
e90fdc39
JS
102/* This is set by setup_git_dir_gently() and/or git_default_config() */
103char *git_work_tree_cfg;
e90fdc39 104
38f3f094 105static char *git_namespace;
a1bea2c1 106
74866d75
BW
107static const char *super_prefix;
108
48a7c1c4 109/*
2163e5db 110 * Repository-local GIT_* environment variables; see cache.h for details.
48a7c1c4 111 */
2163e5db 112const char * const local_repo_env[] = {
48a7c1c4
GB
113 ALTERNATE_DB_ENVIRONMENT,
114 CONFIG_ENVIRONMENT,
655e8d9c 115 CONFIG_DATA_ENVIRONMENT,
48a7c1c4
GB
116 DB_ENVIRONMENT,
117 GIT_DIR_ENVIRONMENT,
118 GIT_WORK_TREE_ENVIRONMENT,
2cd83d10 119 GIT_IMPLICIT_WORK_TREE_ENVIRONMENT,
48a7c1c4
GB
120 GRAFT_ENVIRONMENT,
121 INDEX_ENVIRONMENT,
122 NO_REPLACE_OBJECTS_ENVIRONMENT,
58d121b2 123 GIT_REPLACE_REF_BASE_ENVIRONMENT,
a6f7f9a3 124 GIT_PREFIX_ENVIRONMENT,
74866d75 125 GIT_SUPER_PREFIX_ENVIRONMENT,
069c0532 126 GIT_SHALLOW_FILE_ENVIRONMENT,
c7b3a3d2 127 GIT_COMMON_DIR_ENVIRONMENT,
48a7c1c4
GB
128 NULL
129};
130
a1bea2c1
JT
131static char *expand_namespace(const char *raw_namespace)
132{
133 struct strbuf buf = STRBUF_INIT;
134 struct strbuf **components, **c;
135
136 if (!raw_namespace || !*raw_namespace)
137 return xstrdup("");
138
139 strbuf_addstr(&buf, raw_namespace);
140 components = strbuf_split(&buf, '/');
141 strbuf_reset(&buf);
142 for (c = components; *c; c++)
143 if (strcmp((*c)->buf, "/") != 0)
144 strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf);
145 strbuf_list_free(components);
8d9c5010 146 if (check_refname_format(buf.buf, 0))
a1bea2c1
JT
147 die("bad git namespace path \"%s\"", raw_namespace);
148 strbuf_addch(&buf, '/');
149 return strbuf_detach(&buf, NULL);
150}
151
357a03eb
NTND
152/*
153 * Wrapper of getenv() that returns a strdup value. This value is kept
154 * in argv to be freed later.
155 */
156static const char *getenv_safe(struct argv_array *argv, const char *name)
157{
158 const char *value = getenv(name);
159
160 if (!value)
161 return NULL;
162
163 argv_array_push(argv, value);
164 return argv->argv[argv->argc - 1];
165}
166
167void setup_git_env(const char *git_dir)
e1b10391 168{
069c0532 169 const char *shallow_file;
58d121b2 170 const char *replace_ref_base;
357a03eb
NTND
171 struct set_gitdir_args args = { NULL };
172 struct argv_array to_free = ARGV_ARRAY_INIT;
173
174 args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT);
175 args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT);
176 args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT);
177 args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT);
7bc0dcaa 178 args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT);
357a03eb
NTND
179 repo_set_gitdir(the_repository, git_dir, &args);
180 argv_array_clear(&to_free);
487a2b73 181
6476b38b 182 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
afc711b8 183 check_replace_refs = 0;
58d121b2 184 replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT);
f9b7573f 185 free(git_replace_ref_base);
58d121b2
MH
186 git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base
187 : "refs/replace/");
38f3f094
BW
188 free(git_namespace);
189 git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
069c0532
NTND
190 shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
191 if (shallow_file)
192 set_alternate_shallow_file(shallow_file, 0);
0bee5918
SP
193}
194
7d1864ce 195int is_bare_repository(void)
0bee5918 196{
e90fdc39
JS
197 /* if core.bare is not 'false', let's see if there is a work tree */
198 return is_bare_repository_cfg && !get_git_work_tree();
e1b10391
LT
199}
200
b9605bc4
JK
201int have_git_dir(void)
202{
203 return startup_info->have_repository
c14c234f 204 || the_repository->gitdir;
b9605bc4
JK
205}
206
c5fba16c 207const char *get_git_dir(void)
e1b10391 208{
c14c234f 209 if (!the_repository->gitdir)
73f192c9 210 BUG("git environment hasn't been setup");
c14c234f 211 return the_repository->gitdir;
e1b10391
LT
212}
213
c7b3a3d2
NTND
214const char *get_git_common_dir(void)
215{
c14c234f 216 if (!the_repository->commondir)
73f192c9 217 BUG("git environment hasn't been setup");
c14c234f 218 return the_repository->commondir;
c7b3a3d2
NTND
219}
220
a1bea2c1
JT
221const char *get_git_namespace(void)
222{
38f3f094 223 if (!git_namespace)
73f192c9 224 BUG("git environment hasn't been setup");
38f3f094 225 return git_namespace;
a1bea2c1
JT
226}
227
228const char *strip_namespace(const char *namespaced_ref)
229{
bf08c8cf
BW
230 const char *out;
231 if (skip_prefix(namespaced_ref, get_git_namespace(), &out))
232 return out;
233 return NULL;
a1bea2c1
JT
234}
235
74866d75
BW
236const char *get_super_prefix(void)
237{
238 static int initialized;
239 if (!initialized) {
240 super_prefix = getenv(GIT_SUPER_PREFIX_ENVIRONMENT);
241 initialized = 1;
242 }
243 return super_prefix;
244}
245
19757d80
DB
246static int git_work_tree_initialized;
247
248/*
249 * Note. This works only before you used a work tree. This was added
250 * primarily to support git-clone to work in a new repository it just
251 * created, and is not meant to flip between different work trees.
252 */
253void set_git_work_tree(const char *new_work_tree)
254{
83518360 255 if (git_work_tree_initialized) {
e2a57aac 256 new_work_tree = real_path(new_work_tree);
b4158732 257 if (strcmp(new_work_tree, the_repository->worktree))
83518360
NTND
258 die("internal error: work tree has already been set\n"
259 "Current worktree: %s\nNew worktree: %s",
b4158732 260 the_repository->worktree, new_work_tree);
83518360
NTND
261 return;
262 }
19757d80 263 git_work_tree_initialized = 1;
b4158732 264 repo_set_worktree(the_repository, new_work_tree);
19757d80
DB
265}
266
e90fdc39
JS
267const char *get_git_work_tree(void)
268{
b4158732 269 return the_repository->worktree;
e90fdc39
JS
270}
271
e1b10391
LT
272char *get_object_directory(void)
273{
90c62155 274 if (!the_repository->objects->objectdir)
73f192c9 275 BUG("git environment hasn't been setup");
90c62155 276 return the_repository->objects->objectdir;
e1b10391
LT
277}
278
a63b5fca 279int odb_mkstemp(struct strbuf *temp_filename, const char *pattern)
463db9b1
JN
280{
281 int fd;
282 /*
283 * we let the umask do its job, don't try to be more
284 * restrictive except to remove write permission.
285 */
286 int mode = 0444;
a63b5fca
BW
287 git_path_buf(temp_filename, "objects/%s", pattern);
288 fd = git_mkstemp_mode(temp_filename->buf, mode);
463db9b1
JN
289 if (0 <= fd)
290 return fd;
291
292 /* slow path */
a63b5fca
BW
293 /* some mkstemp implementations erase temp_filename on failure */
294 git_path_buf(temp_filename, "objects/%s", pattern);
295 safe_create_leading_directories(temp_filename->buf);
296 return xmkstemp_mode(temp_filename->buf, mode);
463db9b1
JN
297}
298
eaeefc32 299int odb_pack_keep(const char *name)
463db9b1
JN
300{
301 int fd;
302
463db9b1
JN
303 fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
304 if (0 <= fd)
305 return fd;
306
307 /* slow path */
eaeefc32 308 safe_create_leading_directories_const(name);
463db9b1
JN
309 return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
310}
311
e1b10391
LT
312char *get_index_file(void)
313{
c14c234f 314 if (!the_repository->index_file)
73f192c9 315 BUG("git environment hasn't been setup");
c14c234f 316 return the_repository->index_file;
e1b10391
LT
317}
318
319char *get_graft_file(void)
320{
c14c234f 321 if (!the_repository->graft_file)
73f192c9 322 BUG("git environment hasn't been setup");
c14c234f 323 return the_repository->graft_file;
e1b10391 324}
d7ac12b2
JS
325
326int set_git_dir(const char *path)
327{
328 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
329 return error("Could not set GIT_DIR to '%s'", path);
357a03eb 330 setup_git_env(path);
d7ac12b2
JS
331 return 0;
332}
a6fa5992
PN
333
334const char *get_log_output_encoding(void)
335{
336 return git_log_output_encoding ? git_log_output_encoding
337 : get_commit_output_encoding();
338}
339
340const char *get_commit_output_encoding(void)
341{
342 return git_commit_encoding ? git_commit_encoding : "UTF-8";
343}
7875acb6
JK
344
345static int the_shared_repository = PERM_UMASK;
ae5f6776 346static int need_shared_repository_from_config = 1;
7875acb6
JK
347
348void set_shared_repository(int value)
349{
350 the_shared_repository = value;
ae5f6776 351 need_shared_repository_from_config = 0;
7875acb6
JK
352}
353
354int get_shared_repository(void)
355{
ae5f6776
JK
356 if (need_shared_repository_from_config) {
357 const char *var = "core.sharedrepository";
358 const char *value;
359 if (!git_config_get_value(var, &value))
360 the_shared_repository = git_config_perm(var, value);
361 need_shared_repository_from_config = 0;
362 }
7875acb6
JK
363 return the_shared_repository;
364}
4543926b
JK
365
366void reset_shared_repository(void)
367{
368 need_shared_repository_from_config = 1;
369}
27344d6a
JK
370
371int use_optional_locks(void)
372{
373 return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1);
374}
a2cd709d
AR
375
376int print_sha1_ellipsis(void)
377{
378 /*
379 * Determine if the calling environment contains the variable
380 * GIT_PRINT_SHA1_ELLIPSIS set to "yes".
381 */
382 static int cached_result = -1; /* unknown */
383
384 if (cached_result < 0) {
385 const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS");
386 cached_result = (v && !strcasecmp(v, "yes"));
387 }
388 return cached_result;
389}