sha1-name.c: remove implicit dependency on the_index
[git/git.git] / list-objects-filter-options.c
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1#include "cache.h"
2#include "commit.h"
3#include "config.h"
4#include "revision.h"
5#include "argv-array.h"
6#include "list-objects.h"
7#include "list-objects-filter.h"
8#include "list-objects-filter-options.h"
9
10/*
1dde5fa2 11 * Parse value of the argument to the "filter" keyword.
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12 * On the command line this looks like:
13 * --filter=<arg>
14 * and in the pack protocol as:
15 * "filter" SP <arg>
16 *
17 * The filter keyword will be used by many commands.
18 * See Documentation/rev-list-options.txt for allowed values for <arg>.
19 *
20 * Capture the given arg as the "filter_spec". This can be forwarded to
21 * subordinate commands when necessary. We also "intern" the arg for
22 * the convenience of the current command.
23 */
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24static int gently_parse_list_objects_filter(
25 struct list_objects_filter_options *filter_options,
26 const char *arg,
27 struct strbuf *errbuf)
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28{
29 const char *v0;
30
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31 if (filter_options->choice) {
32 if (errbuf) {
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33 strbuf_addstr(
34 errbuf,
35 _("multiple filter-specs cannot be combined"));
36 }
37 return 1;
38 }
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39
40 filter_options->filter_spec = strdup(arg);
41
42 if (!strcmp(arg, "blob:none")) {
43 filter_options->choice = LOFC_BLOB_NONE;
44 return 0;
25ec7bca 45
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46 } else if (skip_prefix(arg, "blob:limit=", &v0)) {
47 if (git_parse_ulong(v0, &filter_options->blob_limit_value)) {
48 filter_options->choice = LOFC_BLOB_LIMIT;
49 return 0;
50 }
25ec7bca 51
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52 } else if (skip_prefix(arg, "tree:", &v0)) {
53 unsigned long depth;
54 if (!git_parse_ulong(v0, &depth) || depth != 0) {
55 if (errbuf) {
56 strbuf_addstr(
57 errbuf,
58 _("only 'tree:0' is supported"));
59 }
60 return 1;
61 }
62 filter_options->choice = LOFC_TREE_NONE;
63 return 0;
64
1e1e39b3 65 } else if (skip_prefix(arg, "sparse:oid=", &v0)) {
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66 struct object_context oc;
67 struct object_id sparse_oid;
68
69 /*
70 * Try to parse <oid-expression> into an OID for the current
71 * command, but DO NOT complain if we don't have the blob or
72 * ref locally.
73 */
3a7a698e 74 if (!get_oid_with_context(the_repository, v0, GET_OID_BLOB,
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75 &sparse_oid, &oc))
76 filter_options->sparse_oid_value = oiddup(&sparse_oid);
77 filter_options->choice = LOFC_SPARSE_OID;
78 return 0;
25ec7bca 79
1e1e39b3 80 } else if (skip_prefix(arg, "sparse:path=", &v0)) {
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81 filter_options->choice = LOFC_SPARSE_PATH;
82 filter_options->sparse_path_value = strdup(v0);
83 return 0;
84 }
85
cc0b05a4 86 if (errbuf)
1e1e39b3 87 strbuf_addf(errbuf, "invalid filter-spec '%s'", arg);
cc0b05a4 88
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89 memset(filter_options, 0, sizeof(*filter_options));
90 return 1;
91}
92
93int parse_list_objects_filter(struct list_objects_filter_options *filter_options,
94 const char *arg)
95{
96 struct strbuf buf = STRBUF_INIT;
97 if (gently_parse_list_objects_filter(filter_options, arg, &buf))
98 die("%s", buf.buf);
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99 return 0;
100}
101
102int opt_parse_list_objects_filter(const struct option *opt,
103 const char *arg, int unset)
104{
105 struct list_objects_filter_options *filter_options = opt->value;
106
4875c979 107 if (unset || !arg) {
aa57b871 108 list_objects_filter_set_no_filter(filter_options);
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109 return 0;
110 }
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111
112 return parse_list_objects_filter(filter_options, arg);
113}
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114
115void list_objects_filter_release(
116 struct list_objects_filter_options *filter_options)
117{
118 free(filter_options->filter_spec);
119 free(filter_options->sparse_oid_value);
120 free(filter_options->sparse_path_value);
121 memset(filter_options, 0, sizeof(*filter_options));
122}
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123
124void partial_clone_register(
125 const char *remote,
126 const struct list_objects_filter_options *filter_options)
127{
128 /*
129 * Record the name of the partial clone remote in the
130 * config and in the global variable -- the latter is
131 * used throughout to indicate that partial clone is
132 * enabled and to expect missing objects.
133 */
134 if (repository_format_partial_clone &&
135 *repository_format_partial_clone &&
136 strcmp(remote, repository_format_partial_clone))
137 die(_("cannot change partial clone promisor remote"));
138
139 git_config_set("core.repositoryformatversion", "1");
140 git_config_set("extensions.partialclone", remote);
141
142 repository_format_partial_clone = xstrdup(remote);
143
144 /*
145 * Record the initial filter-spec in the config as
146 * the default for subsequent fetches from this remote.
147 */
148 core_partial_clone_filter_default =
149 xstrdup(filter_options->filter_spec);
150 git_config_set("core.partialclonefilter",
151 core_partial_clone_filter_default);
152}
153
154void partial_clone_get_default_filter_spec(
155 struct list_objects_filter_options *filter_options)
156{
157 /*
158 * Parse default value, but silently ignore it if it is invalid.
159 */
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160 if (!core_partial_clone_filter_default)
161 return;
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162 gently_parse_list_objects_filter(filter_options,
163 core_partial_clone_filter_default,
164 NULL);
165}