list-objects-filter-options: move error check up
[git] / list-objects-filter-options.h
1 #ifndef LIST_OBJECTS_FILTER_OPTIONS_H
2 #define LIST_OBJECTS_FILTER_OPTIONS_H
3
4 #include "parse-options.h"
5 #include "strbuf.h"
6
7 /*
8  * The list of defined filters for list-objects.
9  */
10 enum list_objects_filter_choice {
11         LOFC_DISABLED = 0,
12         LOFC_BLOB_NONE,
13         LOFC_BLOB_LIMIT,
14         LOFC_TREE_DEPTH,
15         LOFC_SPARSE_OID,
16         LOFC_COMBINE,
17         LOFC__COUNT /* must be last */
18 };
19
20 struct list_objects_filter_options {
21         /*
22          * 'filter_spec' is the raw argument value given on the command line
23          * or protocol request.  (The part after the "--keyword=".)  For
24          * commands that launch filtering sub-processes, or for communication
25          * over the network, don't use this value; use the result of
26          * expand_list_objects_filter_spec() instead.
27          */
28         char *filter_spec;
29
30         /*
31          * 'choice' is determined by parsing the filter-spec.  This indicates
32          * the filtering algorithm to use.
33          */
34         enum list_objects_filter_choice choice;
35
36         /*
37          * Choice is LOFC_DISABLED because "--no-filter" was requested.
38          */
39         unsigned int no_filter : 1;
40
41         /*
42          * BEGIN choice-specific parsed values from within the filter-spec. Only
43          * some values will be defined for any given choice.
44          */
45
46         struct object_id *sparse_oid_value;
47         unsigned long blob_limit_value;
48         unsigned long tree_exclude_depth;
49
50         /* LOFC_COMBINE values */
51
52         /* This array contains all the subfilters which this filter combines. */
53         size_t sub_nr, sub_alloc;
54         struct list_objects_filter_options *sub;
55
56         /*
57          * END choice-specific parsed values.
58          */
59 };
60
61 /* Normalized command line arguments */
62 #define CL_ARG__FILTER "filter"
63
64 int parse_list_objects_filter(
65         struct list_objects_filter_options *filter_options,
66         const char *arg);
67
68 int opt_parse_list_objects_filter(const struct option *opt,
69                                   const char *arg, int unset);
70
71 #define OPT_PARSE_LIST_OBJECTS_FILTER(fo) \
72         { OPTION_CALLBACK, 0, CL_ARG__FILTER, fo, N_("args"), \
73           N_("object filtering"), 0, \
74           opt_parse_list_objects_filter }
75
76 /*
77  * Translates abbreviated numbers in the filter's filter_spec into their
78  * fully-expanded forms (e.g., "limit:blob=1k" becomes "limit:blob=1024").
79  *
80  * This form should be used instead of the raw filter_spec field when
81  * communicating with a remote process or subprocess.
82  */
83 void expand_list_objects_filter_spec(
84         const struct list_objects_filter_options *filter,
85         struct strbuf *expanded_spec);
86
87 void list_objects_filter_release(
88         struct list_objects_filter_options *filter_options);
89
90 static inline void list_objects_filter_set_no_filter(
91         struct list_objects_filter_options *filter_options)
92 {
93         list_objects_filter_release(filter_options);
94         filter_options->no_filter = 1;
95 }
96
97 void partial_clone_register(
98         const char *remote,
99         const struct list_objects_filter_options *filter_options);
100 void partial_clone_get_default_filter_spec(
101         struct list_objects_filter_options *filter_options);
102
103 #endif /* LIST_OBJECTS_FILTER_OPTIONS_H */