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Commit | Line | Data |
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6eb7ed54 DB |
1 | #include "cache.h" |
2 | #include "commit.h" | |
6eb7ed54 | 3 | |
4250a5e5 DB |
4 | #include "pull.h" |
5 | ||
6eb7ed54 DB |
6 | #include <curl/curl.h> |
7 | #include <curl/easy.h> | |
8 | ||
9 | static CURL *curl; | |
10 | ||
11 | static char *base; | |
12 | ||
6eb7ed54 DB |
13 | static SHA_CTX c; |
14 | static z_stream stream; | |
15 | ||
16 | static int local; | |
17 | static int zret; | |
18 | ||
19 | static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb, | |
20 | void *data) { | |
bf0f910d | 21 | unsigned char expn[4096]; |
6eb7ed54 DB |
22 | size_t size = eltsize * nmemb; |
23 | int posn = 0; | |
24 | do { | |
25 | ssize_t retval = write(local, ptr + posn, size - posn); | |
26 | if (retval < 0) | |
27 | return posn; | |
28 | posn += retval; | |
29 | } while (posn < size); | |
30 | ||
31 | stream.avail_in = size; | |
32 | stream.next_in = ptr; | |
33 | do { | |
34 | stream.next_out = expn; | |
35 | stream.avail_out = sizeof(expn); | |
36 | zret = inflate(&stream, Z_SYNC_FLUSH); | |
37 | SHA1_Update(&c, expn, sizeof(expn) - stream.avail_out); | |
38 | } while (stream.avail_in && zret == Z_OK); | |
39 | return size; | |
40 | } | |
41 | ||
4250a5e5 | 42 | int fetch(unsigned char *sha1) |
6eb7ed54 DB |
43 | { |
44 | char *hex = sha1_to_hex(sha1); | |
45 | char *filename = sha1_file_name(sha1); | |
bf0f910d | 46 | unsigned char real_sha1[20]; |
6eb7ed54 DB |
47 | char *url; |
48 | char *posn; | |
49 | ||
6eb7ed54 DB |
50 | local = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0666); |
51 | ||
52 | if (local < 0) | |
53 | return error("Couldn't open %s\n", filename); | |
54 | ||
55 | memset(&stream, 0, sizeof(stream)); | |
56 | ||
57 | inflateInit(&stream); | |
58 | ||
59 | SHA1_Init(&c); | |
60 | ||
61 | curl_easy_setopt(curl, CURLOPT_FILE, NULL); | |
62 | curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
63 | ||
812666c8 | 64 | url = xmalloc(strlen(base) + 50); |
6eb7ed54 DB |
65 | strcpy(url, base); |
66 | posn = url + strlen(base); | |
67 | strcpy(posn, "objects/"); | |
68 | posn += 8; | |
69 | memcpy(posn, hex, 2); | |
70 | posn += 2; | |
71 | *(posn++) = '/'; | |
72 | strcpy(posn, hex + 2); | |
73 | ||
74 | curl_easy_setopt(curl, CURLOPT_URL, url); | |
75 | ||
6eb7ed54 DB |
76 | if (curl_easy_perform(curl)) |
77 | return error("Couldn't get %s for %s\n", url, hex); | |
78 | ||
79 | close(local); | |
80 | inflateEnd(&stream); | |
81 | SHA1_Final(real_sha1, &c); | |
82 | if (zret != Z_STREAM_END) { | |
83 | unlink(filename); | |
84 | return error("File %s (%s) corrupt\n", hex, url); | |
85 | } | |
86 | if (memcmp(sha1, real_sha1, 20)) { | |
87 | unlink(filename); | |
88 | return error("File %s has bad hash\n", hex); | |
89 | } | |
90 | ||
e78d9772 | 91 | pull_say("got %s\n", hex); |
6eb7ed54 DB |
92 | return 0; |
93 | } | |
94 | ||
6eb7ed54 DB |
95 | int main(int argc, char **argv) |
96 | { | |
97 | char *commit_id; | |
98 | char *url; | |
99 | int arg = 1; | |
6eb7ed54 DB |
100 | |
101 | while (arg < argc && argv[arg][0] == '-') { | |
102 | if (argv[arg][1] == 't') { | |
4250a5e5 | 103 | get_tree = 1; |
6eb7ed54 | 104 | } else if (argv[arg][1] == 'c') { |
4250a5e5 | 105 | get_history = 1; |
4a62b619 JH |
106 | } else if (argv[arg][1] == 'd') { |
107 | get_delta = 0; | |
a48e1d67 JH |
108 | } else if (!strcmp(argv[arg], "--recover")) { |
109 | get_delta = 2; | |
6eb7ed54 | 110 | } else if (argv[arg][1] == 'a') { |
4250a5e5 DB |
111 | get_all = 1; |
112 | get_tree = 1; | |
113 | get_history = 1; | |
e78d9772 JH |
114 | } else if (argv[arg][1] == 'v') { |
115 | get_verbosely = 1; | |
6eb7ed54 DB |
116 | } |
117 | arg++; | |
118 | } | |
119 | if (argc < arg + 2) { | |
a48e1d67 | 120 | usage("git-http-pull [-c] [-t] [-a] [-d] [-v] [--recover] commit-id url"); |
6eb7ed54 DB |
121 | return 1; |
122 | } | |
123 | commit_id = argv[arg]; | |
124 | url = argv[arg + 1]; | |
125 | ||
6eb7ed54 DB |
126 | curl_global_init(CURL_GLOBAL_ALL); |
127 | ||
128 | curl = curl_easy_init(); | |
129 | ||
130 | base = url; | |
131 | ||
4250a5e5 | 132 | if (pull(commit_id)) |
6eb7ed54 DB |
133 | return 1; |
134 | ||
135 | curl_global_cleanup(); | |
136 | return 0; | |
137 | } |