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1 | #include "cache.h" |
2 | #include "repository.h" | |
3 | #include "refs.h" | |
4 | #include "remote.h" | |
dbbcd44f | 5 | #include "strvec.h" |
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6 | #include "ls-refs.h" |
7 | #include "pkt-line.h" | |
e20b4192 | 8 | #include "config.h" |
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9 | |
10 | /* | |
11 | * Check if one of the prefixes is a prefix of the ref. | |
12 | * If no prefixes were provided, all refs match. | |
13 | */ | |
ef8d7ac4 | 14 | static int ref_match(const struct strvec *prefixes, const char *refname) |
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15 | { |
16 | int i; | |
17 | ||
d70a9eb6 | 18 | if (!prefixes->nr) |
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19 | return 1; /* no restriction */ |
20 | ||
d70a9eb6 JK |
21 | for (i = 0; i < prefixes->nr; i++) { |
22 | const char *prefix = prefixes->v[i]; | |
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23 | |
24 | if (starts_with(refname, prefix)) | |
25 | return 1; | |
26 | } | |
27 | ||
28 | return 0; | |
29 | } | |
30 | ||
31 | struct ls_refs_data { | |
32 | unsigned peel; | |
33 | unsigned symrefs; | |
ef8d7ac4 | 34 | struct strvec prefixes; |
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35 | }; |
36 | ||
37 | static int send_ref(const char *refname, const struct object_id *oid, | |
38 | int flag, void *cb_data) | |
39 | { | |
40 | struct ls_refs_data *data = cb_data; | |
41 | const char *refname_nons = strip_namespace(refname); | |
42 | struct strbuf refline = STRBUF_INIT; | |
43 | ||
e20b4192 JK |
44 | if (ref_is_hidden(refname_nons, refname)) |
45 | return 0; | |
46 | ||
e2f41a0a | 47 | if (!ref_match(&data->prefixes, refname_nons)) |
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48 | return 0; |
49 | ||
50 | strbuf_addf(&refline, "%s %s", oid_to_hex(oid), refname_nons); | |
51 | if (data->symrefs && flag & REF_ISSYMREF) { | |
52 | struct object_id unused; | |
53 | const char *symref_target = resolve_ref_unsafe(refname, 0, | |
54 | &unused, | |
55 | &flag); | |
56 | ||
57 | if (!symref_target) | |
58 | die("'%s' is a symref but it is not?", refname); | |
59 | ||
533e0882 JK |
60 | strbuf_addf(&refline, " symref-target:%s", |
61 | strip_namespace(symref_target)); | |
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62 | } |
63 | ||
64 | if (data->peel) { | |
65 | struct object_id peeled; | |
66 | if (!peel_ref(refname, &peeled)) | |
67 | strbuf_addf(&refline, " peeled:%s", oid_to_hex(&peeled)); | |
68 | } | |
69 | ||
70 | strbuf_addch(&refline, '\n'); | |
71 | packet_write(1, refline.buf, refline.len); | |
72 | ||
73 | strbuf_release(&refline); | |
74 | return 0; | |
75 | } | |
76 | ||
e20b4192 JK |
77 | static int ls_refs_config(const char *var, const char *value, void *data) |
78 | { | |
79 | /* | |
80 | * We only serve fetches over v2 for now, so respect only "uploadpack" | |
81 | * config. This may need to eventually be expanded to "receive", but we | |
82 | * don't yet know how that information will be passed to ls-refs. | |
83 | */ | |
84 | return parse_hide_refs_config(var, value, "uploadpack"); | |
85 | } | |
86 | ||
ef8d7ac4 | 87 | int ls_refs(struct repository *r, struct strvec *keys, |
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88 | struct packet_reader *request) |
89 | { | |
90 | struct ls_refs_data data; | |
91 | ||
92 | memset(&data, 0, sizeof(data)); | |
93 | ||
e20b4192 JK |
94 | git_config(ls_refs_config, NULL); |
95 | ||
4845b772 | 96 | while (packet_reader_read(request) == PACKET_READ_NORMAL) { |
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97 | const char *arg = request->line; |
98 | const char *out; | |
99 | ||
100 | if (!strcmp("peel", arg)) | |
101 | data.peel = 1; | |
102 | else if (!strcmp("symrefs", arg)) | |
103 | data.symrefs = 1; | |
104 | else if (skip_prefix(arg, "ref-prefix ", &out)) | |
ef8d7ac4 | 105 | strvec_push(&data.prefixes, out); |
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106 | } |
107 | ||
4845b772 JK |
108 | if (request->status != PACKET_READ_FLUSH) |
109 | die(_("expected flush after ls-refs arguments")); | |
110 | ||
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111 | head_ref_namespaced(send_ref, &data); |
112 | for_each_namespaced_ref(send_ref, &data); | |
113 | packet_flush(1); | |
ef8d7ac4 | 114 | strvec_clear(&data.prefixes); |
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115 | return 0; |
116 | } |