]> gitweb.ps.run Git - ps-cgit/blob - shared.c
Add shared diff-handling functions
[ps-cgit] / shared.c
1 /* shared.c: global vars + some callback functions
2  *
3  * Copyright (C) 2006 Lars Hjemli
4  *
5  * Licensed under GNU General Public License v2
6  *   (see COPYING for full license text)
7  */
8
9 #include "cgit.h"
10
11 struct repolist cgit_repolist;
12 struct repoinfo *cgit_repo;
13
14 char *cgit_root_title   = "Git repository browser";
15 char *cgit_css          = "/cgit.css";
16 char *cgit_logo         = "/git-logo.png";
17 char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
18 char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
19 char *cgit_virtual_root = NULL;
20
21 char *cgit_cache_root   = "/var/cache/cgit";
22
23 int cgit_nocache               =  0;
24 int cgit_snapshots             =  0;
25 int cgit_max_lock_attempts     =  5;
26 int cgit_cache_root_ttl        =  5;
27 int cgit_cache_repo_ttl        =  5;
28 int cgit_cache_dynamic_ttl     =  5;
29 int cgit_cache_static_ttl      = -1;
30 int cgit_cache_max_create_time =  5;
31
32 int cgit_max_msg_len = 60;
33
34 char *cgit_repo_name    = NULL;
35 char *cgit_repo_desc    = NULL;
36 char *cgit_repo_owner   = NULL;
37
38 int cgit_query_has_symref = 0;
39 int cgit_query_has_sha1   = 0;
40
41 char *cgit_querystring  = NULL;
42 char *cgit_query_repo   = NULL;
43 char *cgit_query_page   = NULL;
44 char *cgit_query_head   = NULL;
45 char *cgit_query_search = NULL;
46 char *cgit_query_sha1   = NULL;
47 char *cgit_query_sha2   = NULL;
48 char *cgit_query_path   = NULL;
49 char *cgit_query_name   = NULL;
50 int   cgit_query_ofs    = 0;
51
52 int htmlfd = 0;
53
54 int chk_zero(int result, char *msg)
55 {
56         if (result != 0)
57                 die("%s: %s", msg, strerror(errno));
58         return result;
59 }
60
61 int chk_positive(int result, char *msg)
62 {
63         if (result <= 0)
64                 die("%s: %s", msg, strerror(errno));
65         return result;
66 }
67
68 struct repoinfo *add_repo(const char *url)
69 {
70         struct repoinfo *ret;
71
72         if (++cgit_repolist.count > cgit_repolist.length) {
73                 if (cgit_repolist.length == 0)
74                         cgit_repolist.length = 8;
75                 else
76                         cgit_repolist.length *= 2;
77                 cgit_repolist.repos = xrealloc(cgit_repolist.repos,
78                                                cgit_repolist.length *
79                                                sizeof(struct repoinfo));
80         }
81
82         ret = &cgit_repolist.repos[cgit_repolist.count-1];
83         ret->url = xstrdup(url);
84         ret->name = ret->url;
85         ret->path = NULL;
86         ret->desc = NULL;
87         ret->owner = NULL;
88         ret->snapshots = cgit_snapshots;
89         ret->module_link = cgit_module_link;
90         return ret;
91 }
92
93 void cgit_global_config_cb(const char *name, const char *value)
94 {
95         if (!strcmp(name, "root-title"))
96                 cgit_root_title = xstrdup(value);
97         else if (!strcmp(name, "css"))
98                 cgit_css = xstrdup(value);
99         else if (!strcmp(name, "logo"))
100                 cgit_logo = xstrdup(value);
101         else if (!strcmp(name, "logo-link"))
102                 cgit_logo_link = xstrdup(value);
103         else if (!strcmp(name, "module-link"))
104                 cgit_module_link = xstrdup(value);
105         else if (!strcmp(name, "virtual-root"))
106                 cgit_virtual_root = xstrdup(value);
107         else if (!strcmp(name, "nocache"))
108                 cgit_nocache = atoi(value);
109         else if (!strcmp(name, "snapshots"))
110                 cgit_snapshots = atoi(value);
111         else if (!strcmp(name, "cache-root"))
112                 cgit_cache_root = xstrdup(value);
113         else if (!strcmp(name, "cache-root-ttl"))
114                 cgit_cache_root_ttl = atoi(value);
115         else if (!strcmp(name, "cache-repo-ttl"))
116                 cgit_cache_repo_ttl = atoi(value);
117         else if (!strcmp(name, "cache-static-ttl"))
118                 cgit_cache_static_ttl = atoi(value);
119         else if (!strcmp(name, "cache-dynamic-ttl"))
120                 cgit_cache_dynamic_ttl = atoi(value);
121         else if (!strcmp(name, "max-message-length"))
122                 cgit_max_msg_len = atoi(value);
123         else if (!strcmp(name, "repo.url"))
124                 cgit_repo = add_repo(value);
125         else if (!strcmp(name, "repo.name"))
126                 cgit_repo->name = xstrdup(value);
127         else if (cgit_repo && !strcmp(name, "repo.path"))
128                 cgit_repo->path = xstrdup(value);
129         else if (cgit_repo && !strcmp(name, "repo.desc"))
130                 cgit_repo->desc = xstrdup(value);
131         else if (cgit_repo && !strcmp(name, "repo.owner"))
132                 cgit_repo->owner = xstrdup(value);
133         else if (cgit_repo && !strcmp(name, "repo.snapshots"))
134                 cgit_repo->snapshots = atoi(value);
135         else if (cgit_repo && !strcmp(name, "repo.module-link"))
136                 cgit_repo->module_link= xstrdup(value);
137 }
138
139 void cgit_repo_config_cb(const char *name, const char *value)
140 {
141         if (!strcmp(name, "name"))
142                 cgit_repo_name = xstrdup(value);
143         else if (!strcmp(name, "desc"))
144                 cgit_repo_desc = xstrdup(value);
145         else if (!strcmp(name, "owner"))
146                 cgit_repo_owner = xstrdup(value);
147 }
148
149 void cgit_querystring_cb(const char *name, const char *value)
150 {
151         if (!strcmp(name,"r")) {
152                 cgit_query_repo = xstrdup(value);
153         } else if (!strcmp(name, "p")) {
154                 cgit_query_page = xstrdup(value);
155         } else if (!strcmp(name, "q")) {
156                 cgit_query_search = xstrdup(value);
157         } else if (!strcmp(name, "h")) {
158                 cgit_query_head = xstrdup(value);
159                 cgit_query_has_symref = 1;
160         } else if (!strcmp(name, "id")) {
161                 cgit_query_sha1 = xstrdup(value);
162                 cgit_query_has_sha1 = 1;
163         } else if (!strcmp(name, "id2")) {
164                 cgit_query_sha2 = xstrdup(value);
165                 cgit_query_has_sha1 = 1;
166         } else if (!strcmp(name, "ofs")) {
167                 cgit_query_ofs = atoi(value);
168         } else if (!strcmp(name, "path")) {
169                 cgit_query_path = xstrdup(value);
170         } else if (!strcmp(name, "name")) {
171                 cgit_query_name = xstrdup(value);
172         }
173 }
174
175 void *cgit_free_commitinfo(struct commitinfo *info)
176 {
177         free(info->author);
178         free(info->author_email);
179         free(info->committer);
180         free(info->committer_email);
181         free(info->subject);
182         free(info);
183         return NULL;
184 }
185
186 int hextoint(char c)
187 {
188         if (c >= 'a' && c <= 'f')
189                 return 10 + c - 'a';
190         else if (c >= 'A' && c <= 'F')
191                 return 10 + c - 'A';
192         else if (c >= '0' && c <= '9')
193                 return c - '0';
194         else
195                 return -1;
196 }
197
198 void cgit_diff_tree_cb(struct diff_queue_struct *q,
199                        struct diff_options *options, void *data)
200 {
201         int i;
202
203         for (i = 0; i < q->nr; i++) {
204                 if (q->queue[i]->status == 'U')
205                         continue;
206                 ((filepair_fn)data)(q->queue[i]);
207         }
208 }
209
210 void cgit_diff_tree(const unsigned char *old_sha1,
211                     const unsigned char *new_sha1,
212                     filepair_fn fn)
213 {
214         struct diff_options opt;
215         int ret;
216
217         diff_setup(&opt);
218         opt.output_format = DIFF_FORMAT_CALLBACK;
219         opt.detect_rename = 1;
220         opt.recursive = 1;
221         opt.format_callback = cgit_diff_tree_cb;
222         opt.format_callback_data = fn;
223         diff_setup_done(&opt);
224
225         if (old_sha1)
226                 ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
227         else
228                 ret = diff_root_tree_sha1(new_sha1, "", &opt);
229         diffcore_std(&opt);
230         diff_flush(&opt);
231 }
232
233 void cgit_diff_commit(struct commit *commit, filepair_fn fn)
234 {
235         unsigned char *old_sha1 = NULL;
236
237         if (commit->parents)
238                 old_sha1 = commit->parents->item->object.sha1;
239         cgit_diff_tree(old_sha1, commit->object.sha1, fn);
240 }