summaryrefslogtreecommitdiff
path: root/list-objects-filter-options.c
blob: b0de7d3c176ab793c654e19314e84264ffe2966c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
#include "cache.h"
#include "commit.h"
#include "config.h"
#include "revision.h"
#include "argv-array.h"
#include "list-objects.h"
#include "list-objects-filter.h"
#include "list-objects-filter-options.h"
#include "promisor-remote.h"
 
/*
 * Parse value of the argument to the "filter" keyword.
 * On the command line this looks like:
 *       --filter=<arg>
 * and in the pack protocol as:
 *       "filter" SP <arg>
 *
 * The filter keyword will be used by many commands.
 * See Documentation/rev-list-options.txt for allowed values for <arg>.
 *
 * Capture the given arg as the "filter_spec".  This can be forwarded to
 * subordinate commands when necessary (although it's better to pass it through
 * expand_list_objects_filter_spec() first).  We also "intern" the arg for the
 * convenience of the current command.
 */
static int gently_parse_list_objects_filter(
	struct list_objects_filter_options *filter_options,
	const char *arg,
	struct strbuf *errbuf)
{
	const char *v0;
 
	if (filter_options->choice) {
		if (errbuf) {
			strbuf_addstr(
				errbuf,
				_("multiple filter-specs cannot be combined"));
		}
		return 1;
	}
 
	filter_options->filter_spec = strdup(arg);
 
	if (!strcmp(arg, "blob:none")) {
		filter_options->choice = LOFC_BLOB_NONE;
		return 0;
 
	} else if (skip_prefix(arg, "blob:limit=", &v0)) {
		if (git_parse_ulong(v0, &filter_options->blob_limit_value)) {
			filter_options->choice = LOFC_BLOB_LIMIT;
			return 0;
		}
 
	} else if (skip_prefix(arg, "tree:", &v0)) {
		if (!git_parse_ulong(v0, &filter_options->tree_exclude_depth)) {
			if (errbuf) {
				strbuf_addstr(
					errbuf,
					_("expected 'tree:<depth>'"));
			}
			return 1;
		}
		filter_options->choice = LOFC_TREE_DEPTH;
		return 0;
 
	} else if (skip_prefix(arg, "sparse:oid=", &v0)) {
		struct object_context oc;
		struct object_id sparse_oid;
 
		/*
		 * Try to parse <oid-expression> into an OID for the current
		 * command, but DO NOT complain if we don't have the blob or
		 * ref locally.
		 */
		if (!get_oid_with_context(the_repository, v0, GET_OID_BLOB,
					  &sparse_oid, &oc))
			filter_options->sparse_oid_value = oiddup(&sparse_oid);
		filter_options->choice = LOFC_SPARSE_OID;
		return 0;
 
	} else if (skip_prefix(arg, "sparse:path=", &v0)) {
		if (errbuf) {
			strbuf_addstr(
				errbuf,
				_("sparse:path filters support has been dropped"));
		}
		return 1;
	}
	/*
	 * Please update _git_fetch() in git-completion.bash when you
	 * add new filters
	 */
 
	if (errbuf)
		strbuf_addf(errbuf, _("invalid filter-spec '%s'"), arg);
 
	memset(filter_options, 0, sizeof(*filter_options));
	return 1;
}
 
int parse_list_objects_filter(struct list_objects_filter_options *filter_options,
			      const char *arg)
{
	struct strbuf buf = STRBUF_INIT;
	if (gently_parse_list_objects_filter(filter_options, arg, &buf))
		die("%s", buf.buf);
	return 0;
}
 
int opt_parse_list_objects_filter(const struct option *opt,
				  const char *arg, int unset)
{
	struct list_objects_filter_options *filter_options = opt->value;
 
	if (unset || !arg) {
		list_objects_filter_set_no_filter(filter_options);
		return 0;
	}
 
	return parse_list_objects_filter(filter_options, arg);
}
 
void expand_list_objects_filter_spec(
	const struct list_objects_filter_options *filter,
	struct strbuf *expanded_spec)
{
	strbuf_init(expanded_spec, strlen(filter->filter_spec));
	if (filter->choice == LOFC_BLOB_LIMIT)
		strbuf_addf(expanded_spec, "blob:limit=%lu",
			    filter->blob_limit_value);
	else if (filter->choice == LOFC_TREE_DEPTH)
		strbuf_addf(expanded_spec, "tree:%lu",
			    filter->tree_exclude_depth);
	else
		strbuf_addstr(expanded_spec, filter->filter_spec);
}
 
void list_objects_filter_release(
	struct list_objects_filter_options *filter_options)
{
	free(filter_options->filter_spec);
	free(filter_options->sparse_oid_value);
	memset(filter_options, 0, sizeof(*filter_options));
}
 
void partial_clone_register(
	const char *remote,
	const struct list_objects_filter_options *filter_options)
{
	char *cfg_name;
 
	/* Check if it is already registered */
	if (!promisor_remote_find(remote)) {
		git_config_set("core.repositoryformatversion", "1");
 
		/* Add promisor config for the remote */
		cfg_name = xstrfmt("remote.%s.promisor", remote);
		git_config_set(cfg_name, "true");
		free(cfg_name);
	}
 
	/*
	 * Record the initial filter-spec in the config as
	 * the default for subsequent fetches from this remote.
	 *
	 * TODO: record it into remote.<name>.partialclonefilter
	 */
	core_partial_clone_filter_default =
		xstrdup(filter_options->filter_spec);
	git_config_set("core.partialclonefilter",
		       core_partial_clone_filter_default);
 
	/* Make sure the config info are reset */
	promisor_remote_reinit();
}
 
void partial_clone_get_default_filter_spec(
	struct list_objects_filter_options *filter_options)
{
	/*
	 * Parse default value, but silently ignore it if it is invalid.
	 */
	if (!core_partial_clone_filter_default)
		return;
	gently_parse_list_objects_filter(filter_options,
					 core_partial_clone_filter_default,
					 NULL);
}