stagit
Personal fork of stagit
git clone git://mccd.space/stagit| Log | Files | Refs | README | LICENSE |
stagit-index.c (6147B)
1 #include <err.h>
2 #include <limits.h>
3 #include <stdio.h>
4 #include <stdlib.h>
5 #include <string.h>
6 #include <time.h>
7 #include <unistd.h>
8
9 #include <git2.h>
10
11 static git_repository *repo;
12
13 static const char *relpath = "";
14
15 static char description[255] = "Repositories";
16 static char *name = "";
17 static char owner[255];
18
19 /* Handle read or write errors for a FILE * stream */
20 void
21 checkfileerror(FILE *fp, const char *name, int mode)
22 {
23 if (mode == 'r' && ferror(fp))
24 errx(1, "read error: %s", name);
25 else if (mode == 'w' && (fflush(fp) || ferror(fp)))
26 errx(1, "write error: %s", name);
27 }
28
29 void
30 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
31 {
32 int r;
33
34 r = snprintf(buf, bufsiz, "%s%s%s",
35 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
36 if (r < 0 || (size_t)r >= bufsiz)
37 errx(1, "path truncated: '%s%s%s'",
38 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
39 }
40
41 /* Percent-encode, see RFC3986 section 2.1. */
42 void
43 percentencode(FILE *fp, const char *s, size_t len)
44 {
45 static char tab[] = "0123456789ABCDEF";
46 unsigned char uc;
47 size_t i;
48
49 for (i = 0; *s && i < len; s++, i++) {
50 uc = *s;
51 /* NOTE: do not encode '/' for paths or ",-." */
52 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') ||
53 uc == '[' || uc == ']') {
54 putc('%', fp);
55 putc(tab[(uc >> 4) & 0x0f], fp);
56 putc(tab[uc & 0x0f], fp);
57 } else {
58 putc(uc, fp);
59 }
60 }
61 }
62
63 /* Escape characters below as HTML 2.0 / XML 1.0. */
64 void
65 xmlencode(FILE *fp, const char *s, size_t len)
66 {
67 size_t i;
68
69 for (i = 0; *s && i < len; s++, i++) {
70 switch(*s) {
71 case '<': fputs("<", fp); break;
72 case '>': fputs(">", fp); break;
73 case '\'': fputs("'" , fp); break;
74 case '&': fputs("&", fp); break;
75 case '"': fputs(""", fp); break;
76 default: putc(*s, fp);
77 }
78 }
79 }
80
81 void
82 printtimeshort(FILE *fp, const git_time *intime)
83 {
84 struct tm *intm;
85 time_t t;
86 char out[32];
87
88 t = (time_t)intime->time;
89 if (!(intm = gmtime(&t)))
90 return;
91 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
92 fputs(out, fp);
93 }
94
95 void
96 writeheader(FILE *fp)
97 {
98 fputs("<!DOCTYPE html>\n"
99 "<html>\n<head>\n"
100 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
101 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n"
102 "<title>", fp);
103 xmlencode(fp, description, strlen(description));
104 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
105 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"/css/main.css\" />\n");
106 fputs("</head>\n<body>\n", fp);
107 fputs("<header><nav><a class=\"logo\" id=\"logo\" href=\"/\">mccd</a><ul><li><a href=\"https://merveilles.town/@mccd\">mastodon</a></li><li><a href=\"/feed.xml\">rss</a></li><li><a href=\"/git\">git</a></li><li><a href=\"/wiki\">wiki</a></li></ul></nav></header>", fp);
108
109 fputs("<main id=\"git-content\"><h1 class=\"title\">Repositories</h1>\n"
110 "<table id=\"index\"><thead>\n"
111 "<tr><td><b>Name</b></td><td><b>Description</b></td>"
112 "</thead><tbody>\n", fp);
113 }
114
115 void
116 writefooter(FILE *fp)
117 {
118 fputs("</tbody>\n</table>\n</main>\n</body>\n</html>\n", fp);
119 }
120
121 int
122 writelog(FILE *fp)
123 {
124 git_commit *commit = NULL;
125 const git_signature *author;
126 git_revwalk *w = NULL;
127 git_oid id;
128 char *stripped_name = NULL, *p;
129 int ret = 0;
130
131 git_revwalk_new(&w, repo);
132 git_revwalk_push_head(w);
133
134 if (git_revwalk_next(&id, w) ||
135 git_commit_lookup(&commit, repo, &id)) {
136 ret = -1;
137 goto err;
138 }
139
140 author = git_commit_author(commit);
141
142 /* strip .git suffix */
143 if (!(stripped_name = strdup(name)))
144 err(1, "strdup");
145 if ((p = strrchr(stripped_name, '.')))
146 if (!strcmp(p, ".git"))
147 *p = '\0';
148
149 fputs("<tr><td><a href=\"", fp);
150 /* Prepend base path */
151 fputs("/git/", fp);
152 percentencode(fp, stripped_name, strlen(stripped_name));
153 fputs("/log.html\">", fp);
154 xmlencode(fp, stripped_name, strlen(stripped_name));
155 fputs("</a></td><td>", fp);
156 fputs(description, fp);
157 fputs("</td></tr>", fp);
158
159 git_commit_free(commit);
160 err:
161 git_revwalk_free(w);
162 free(stripped_name);
163
164 return ret;
165 }
166
167 int
168 main(int argc, char *argv[])
169 {
170 FILE *fp;
171 char path[PATH_MAX], repodirabs[PATH_MAX + 1];
172 const char *repodir;
173 int i, ret = 0;
174
175 if (argc < 2) {
176 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]);
177 return 1;
178 }
179
180 /* do not search outside the git repository:
181 GIT_CONFIG_LEVEL_APP is the highest level currently */
182 git_libgit2_init();
183 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++)
184 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, "");
185 /* do not require the git repository to be owned by the current user */
186 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0);
187
188 #ifdef __OpenBSD__
189 if (pledge("stdio rpath", NULL) == -1)
190 err(1, "pledge");
191 #endif
192
193 writeheader(stdout);
194
195 for (i = 1; i < argc; i++) {
196 repodir = argv[i];
197 if (!realpath(repodir, repodirabs))
198 err(1, "realpath");
199
200 if (git_repository_open_ext(&repo, repodir,
201 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
202 fprintf(stderr, "%s: cannot open repository\n", argv[0]);
203 ret = 1;
204 continue;
205 }
206
207 /* use directory name as name */
208 if ((name = strrchr(repodirabs, '/')))
209 name++;
210 else
211 name = "";
212
213 /* read description or .git/description */
214 joinpath(path, sizeof(path), repodir, "description");
215 if (!(fp = fopen(path, "r"))) {
216 joinpath(path, sizeof(path), repodir, ".git/description");
217 fp = fopen(path, "r");
218 }
219 description[0] = '\0';
220 if (fp) {
221 if (!fgets(description, sizeof(description), fp))
222 description[0] = '\0';
223 checkfileerror(fp, "description", 'r');
224 fclose(fp);
225 }
226
227 /* read owner or .git/owner */
228 joinpath(path, sizeof(path), repodir, "owner");
229 if (!(fp = fopen(path, "r"))) {
230 joinpath(path, sizeof(path), repodir, ".git/owner");
231 fp = fopen(path, "r");
232 }
233 owner[0] = '\0';
234 if (fp) {
235 if (!fgets(owner, sizeof(owner), fp))
236 owner[0] = '\0';
237 checkfileerror(fp, "owner", 'r');
238 fclose(fp);
239 owner[strcspn(owner, "\n")] = '\0';
240 }
241 writelog(stdout);
242 }
243 writefooter(stdout);
244
245 /* cleanup */
246 git_repository_free(repo);
247 git_libgit2_shutdown();
248
249 checkfileerror(stdout, "<stdout>", 'w');
250
251 return ret;
252 }