1 /*
2  * Copyright (C) the libgit2 contributors. All rights reserved.
3  *
4  * This file is part of libgit2, distributed under the GNU GPL v2 with
5  * a Linking Exception. For full terms see the included COPYING file.
6  */
7 #ifndef INCLUDE_config_h__
8 #define INCLUDE_config_h__
9 
10 #include "common.h"
11 
12 #include "git2.h"
13 #include "git2/config.h"
14 #include "vector.h"
15 #include "repository.h"
16 
17 #define GIT_CONFIG_FILENAME_PROGRAMDATA "config"
18 #define GIT_CONFIG_FILENAME_SYSTEM "gitconfig"
19 #define GIT_CONFIG_FILENAME_GLOBAL ".gitconfig"
20 #define GIT_CONFIG_FILENAME_XDG    "config"
21 
22 #define GIT_CONFIG_FILENAME_INREPO "config"
23 #define GIT_CONFIG_FILE_MODE 0666
24 
25 struct git_config {
26 	git_refcount rc;
27 	git_vector backends;
28 };
29 
30 extern int git_config__global_location(git_buf *buf);
31 
32 extern int git_config_rename_section(
33 	git_repository *repo,
34 	const char *old_section_name,	/* eg "branch.dummy" */
35 	const char *new_section_name);	/* NULL to drop the old section */
36 
37 extern int git_config__normalize_name(const char *in, char **out);
38 
39 /* internal only: does not normalize key and sets out to NULL if not found */
40 extern int git_config__lookup_entry(
41 	git_config_entry **out,
42 	const git_config *cfg,
43 	const char *key,
44 	bool no_errors);
45 
46 /* internal only: update and/or delete entry string with constraints */
47 extern int git_config__update_entry(
48 	git_config *cfg,
49 	const char *key,
50 	const char *value,
51 	bool overwrite_existing,
52 	bool only_if_existing);
53 
54 /*
55  * Lookup functions that cannot fail.  These functions look up a config
56  * value and return a fallback value if the value is missing or if any
57  * failures occur while trying to access the value.
58  */
59 
60 extern char *git_config__get_string_force(
61 	const git_config *cfg, const char *key, const char *fallback_value);
62 
63 extern int git_config__get_bool_force(
64 	const git_config *cfg, const char *key, int fallback_value);
65 
66 extern int git_config__get_int_force(
67 	const git_config *cfg, const char *key, int fallback_value);
68 
69 /* API for repository configmap-style lookups from config - not cached, but
70  * uses configmap value maps and fallbacks
71  */
72 extern int git_config__configmap_lookup(
73 	int *out, git_config *config, git_configmap_item item);
74 
75 /**
76  * The opposite of git_config_lookup_map_value, we take an enum value
77  * and map it to the string or bool value on the config.
78  */
79 int git_config_lookup_map_enum(git_configmap_t *type_out,
80 	const char **str_out, const git_configmap *maps,
81 	size_t map_n, int enum_val);
82 
83 /**
84  * Unlock the backend with the highest priority
85  *
86  * Unlocking will allow other writers to updat the configuration
87  * file. Optionally, any changes performed since the lock will be
88  * applied to the configuration.
89  *
90  * @param cfg the configuration
91  * @param commit boolean which indicates whether to commit any changes
92  * done since locking
93  * @return 0 or an error code
94  */
95 GIT_EXTERN(int) git_config_unlock(git_config *cfg, int commit);
96 
97 #endif
98