@leroysheep / MovieWebApp
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1 #ifndef LIST_OBJECTS_FILTER_OPTIONS_H
2 #define LIST_OBJECTS_FILTER_OPTIONS_H
3
4 #include "gettext.h"
5 #include "object.h"
6 #include "strbuf.h"
7
8 struct option;
9
10 /*
11 * The list of defined filters for list-objects.
12 */
13 enum list_objects_filter_choice {
14 LOFC_DISABLED = 0,
15 LOFC_BLOB_NONE,
16 LOFC_BLOB_LIMIT,
17 LOFC_TREE_DEPTH,
18 LOFC_SPARSE_OID,
19 LOFC_OBJECT_TYPE,
20 LOFC_COMBINE,
21 LOFC_AUTO,
22 LOFC__COUNT /* must be last */
23 };
24
25 /*
26 * Returns a configuration key suitable for describing the given object filter,
27 * e.g.: "blob:none", "combine", etc.
28 */
29 const char *list_object_filter_config_name(enum list_objects_filter_choice c);
30
31 struct list_objects_filter_options {
32 /*
33 * 'filter_spec' is the raw argument value given on the command line
34 * or protocol request. (The part after the "--keyword=".) For
35 * commands that launch filtering sub-processes, or for communication
36 * over the network, don't use this value; use the result of
37 * expand_list_objects_filter_spec() instead.
38 * To get the raw filter spec given by the user, use the result of
39 * list_objects_filter_spec().
40 */
41 struct strbuf filter_spec;
42
43 /*
44 * 'choice' is determined by parsing the filter-spec. This indicates
45 * the filtering algorithm to use.
46 */
47 enum list_objects_filter_choice choice;
48
49 /*
50 * Choice is LOFC_DISABLED because "--no-filter" was requested.
51 */
52 unsigned int no_filter : 1;
53
54 /*
55 * Is LOFC_AUTO a valid option?
56 */
57 unsigned int allow_auto_filter : 1;
58
59 /*
60 * BEGIN choice-specific parsed values from within the filter-spec. Only
61 * some values will be defined for any given choice.
62 */
63
64 char *sparse_oid_name;
65 unsigned long blob_limit_value;
66 unsigned long tree_exclude_depth;
67 enum object_type object_type;
68
69 /* LOFC_COMBINE values */
70
71 /* This array contains all the subfilters which this filter combines. */
72 size_t sub_nr, sub_alloc;
73 struct list_objects_filter_options *sub;
74
75 /*
76 * END choice-specific parsed values.
77 */
78 };
79
80 #define LIST_OBJECTS_FILTER_INIT { .filter_spec = STRBUF_INIT }
81 void list_objects_filter_init(struct list_objects_filter_options *filter_options);
82
83 /*
84 * Parse value of the argument to the "filter" keyword.
85 * On the command line this looks like:
86 * --filter=<arg>
87 * and in the pack protocol as:
88 * "filter" SP <arg>
89 *
90 * The filter keyword will be used by many commands.
91 * See Documentation/rev-list-options.adoc for allowed values for <arg>.
92 *
93 * Capture the given arg as the "filter_spec". This can be forwarded to
94 * subordinate commands when necessary (although it's better to pass it through
95 * expand_list_objects_filter_spec() first). We also "intern" the arg for the
96 * convenience of the current command.
97 */
98 int gently_parse_list_objects_filter(
99 struct list_objects_filter_options *filter_options,
100 const char *arg,
101 struct strbuf *errbuf);
102
103 void list_objects_filter_die_if_populated(
104 struct list_objects_filter_options *filter_options);
105
106 /*
107 * Parses the filter spec string given by arg and either (1) simply places the
108 * result in filter_options if it is not yet populated or (2) combines it with
109 * the filter already in filter_options if it is already populated. In the case
110 * of (2), the filter specs are combined as if specified with 'combine:'.
111 *
112 * Dies and prints a user-facing message if an error occurs.
113 */
114 void parse_list_objects_filter(
115 struct list_objects_filter_options *filter_options,
116 const char *arg);
117
118 /**
119 * The opt->value to opt_parse_list_objects_filter() is either a
120 * "struct list_objects_filter_option *" when using
121 * OPT_PARSE_LIST_OBJECTS_FILTER().
122 */
123 int opt_parse_list_objects_filter(const struct option *opt,
124 const char *arg, int unset);
125
126 #define OPT_PARSE_LIST_OBJECTS_FILTER(fo) \
127 OPT_CALLBACK(0, "filter", (fo), N_("args"), \
128 N_("object filtering"), opt_parse_list_objects_filter)
129
130 /*
131 * Translates abbreviated numbers in the filter's filter_spec into their
132 * fully-expanded forms (e.g., "limit:blob=1k" becomes "limit:blob=1024").
133 * Returns a string owned by the list_objects_filter_options object.
134 *
135 * This form should be used instead of the raw list_objects_filter_spec()
136 * value when communicating with a remote process or subprocess.
137 */
138 const char *expand_list_objects_filter_spec(
139 struct list_objects_filter_options *filter);
140
141 /*
142 * Returns the filter spec string more or less in the form as the user
143 * entered it. This form of the filter_spec can be used in user-facing
144 * messages. Returns a string owned by the list_objects_filter_options
145 * object.
146 */
147 const char *list_objects_filter_spec(
148 struct list_objects_filter_options *filter);
149
150 void list_objects_filter_release(
151 struct list_objects_filter_options *filter_options);
152
153 static inline void list_objects_filter_set_no_filter(
154 struct list_objects_filter_options *filter_options)
155 {
156 list_objects_filter_release(filter_options);
157 filter_options->no_filter = 1;
158 }
159
160 void partial_clone_register(
161 const char *remote,
162 struct list_objects_filter_options *filter_options);
163 void partial_clone_get_default_filter_spec(
164 struct list_objects_filter_options *filter_options,
165 const char *remote);
166
167 void list_objects_filter_copy(
168 struct list_objects_filter_options *dest,
169 const struct list_objects_filter_options *src);
170
171 #endif /* LIST_OBJECTS_FILTER_OPTIONS_H */