tstagit-index.c - stagit - [fork] customized build of stagit, the static git page generator
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tstagit-index.c (5961B)
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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] = "Anders' Repositories";
16 static char releaselink[255] = "<a href=\"https://src.adamsgaard.dk/releases/\">Releases</a>";
17 static char homelink[255] = "<a href=\"https://adamsgaard.dk\">Back to adamsgaard.dk</a>";
18 static char *name = "";
19 static char owner[255];
20
21 void
22 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
23 {
24 int r;
25
26 r = snprintf(buf, bufsiz, "%s%s%s",
27 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
28 if (r < 0 || (size_t)r >= bufsiz)
29 errx(1, "path truncated: '%s%s%s'",
30 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
31 }
32
33 /* Percent-encode, see RFC3986 section 2.1. */
34 void
35 percentencode(FILE *fp, const char *s, size_t len)
36 {
37 static char tab[] = "0123456789ABCDEF";
38 unsigned char uc;
39 size_t i;
40
41 for (i = 0; *s && i < len; s++, i++) {
42 uc = *s;
43 /* NOTE: do not encode '/' for paths */
44 if (uc < '/' || uc >= 127 || (uc >= ':' && uc <= '@') ||
45 uc == '[' || uc == ']') {
46 putc('%', fp);
47 putc(tab[(uc >> 4) & 0x0f], fp);
48 putc(tab[uc & 0x0f], fp);
49 } else {
50 putc(uc, fp);
51 }
52 }
53 }
54
55 /* Escape characters below as HTML 2.0 / XML 1.0. */
56 void
57 xmlencode(FILE *fp, const char *s, size_t len)
58 {
59 size_t i;
60
61 for (i = 0; *s && i < len; s++, i++) {
62 switch(*s) {
63 case '<': fputs("<", fp); break;
64 case '>': fputs(">", fp); break;
65 case '\'': fputs("'" , fp); break;
66 case '&': fputs("&", fp); break;
67 case '"': fputs(""", fp); break;
68 default: putc(*s, fp);
69 }
70 }
71 }
72
73 void
74 printtimeshort(FILE *fp, const git_time *intime)
75 {
76 struct tm *intm;
77 time_t t;
78 char out[32];
79
80 t = (time_t)intime->time;
81 if (!(intm = gmtime(&t)))
82 return;
83 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
84 fputs(out, fp);
85 }
86
87 void
88 writeheader(FILE *fp)
89 {
90 fputs("<!DOCTYPE html>\n"
91 "<html>\n<head>\n"
92 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
93 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n"
94 "<title>", fp);
95 xmlencode(fp, description, strlen(description));
96 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
97 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
98 fputs("</head>\n<body>\n", fp);
99 fprintf(fp, "<table style=\"width:100%%\">\n<tr><td style=\"white-space:nowrap\"><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
100 "<td style=\"width:99%%\"><span class=\"desc\">", relpath);
101 xmlencode(fp, description, strlen(description));
102 fprintf(fp, "<br />\n%s", releaselink);
103 fputs("</span></td>", fp);
104 fprintf(fp, "<td style=\"text-align:right;white-space:nowrap\">%s</td>", homelink);
105 fputs("</tr><tr><td></td><td>\n"
106 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
107 "<table id=\"index\"><thead>\n"
108 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>"
109 "<td><b>Last commit (UTC)</b></td></tr>"
110 "</thead><tbody>\n", fp);
111 }
112
113 void
114 writefooter(FILE *fp)
115 {
116 fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
117 }
118
119 int
120 writelog(FILE *fp)
121 {
122 git_commit *commit = NULL;
123 const git_signature *author;
124 git_revwalk *w = NULL;
125 git_oid id;
126 char *stripped_name = NULL, *p;
127 int ret = 0;
128
129 git_revwalk_new(&w, repo);
130 git_revwalk_push_head(w);
131
132 if (git_revwalk_next(&id, w) ||
133 git_commit_lookup(&commit, repo, &id)) {
134 ret = -1;
135 goto err;
136 }
137
138 author = git_commit_author(commit);
139
140 /* strip .git suffix */
141 if (!(stripped_name = strdup(name)))
142 err(1, "strdup");
143 if ((p = strrchr(stripped_name, '.')))
144 if (!strcmp(p, ".git"))
145 *p = '\0';
146
147 fputs("<tr><td><a href=\"", fp);
148 percentencode(fp, stripped_name, strlen(stripped_name));
149 fputs("/log.html\">", fp);
150 xmlencode(fp, stripped_name, strlen(stripped_name));
151 fputs("</a></td><td>", fp);
152 xmlencode(fp, description, strlen(description));
153 fputs("</td><td>", fp);
154 xmlencode(fp, owner, strlen(owner));
155 fputs("</td><td>", fp);
156 if (author)
157 printtimeshort(fp, &(author->when));
158 fputs("</td></tr>", fp);
159
160 git_commit_free(commit);
161 err:
162 git_revwalk_free(w);
163 free(stripped_name);
164
165 return ret;
166 }
167
168 int
169 main(int argc, char *argv[])
170 {
171 FILE *fp;
172 char path[PATH_MAX], repodirabs[PATH_MAX + 1];
173 const char *repodir;
174 int i, ret = 0;
175
176 if (argc < 2) {
177 fprintf(stderr, "%s [repodir...]\n", argv[0]);
178 return 1;
179 }
180
181 git_libgit2_init();
182
183 #ifdef __OpenBSD__
184 if (pledge("stdio rpath", NULL) == -1)
185 err(1, "pledge");
186 #endif
187
188 writeheader(stdout);
189
190 for (i = 1; i < argc; i++) {
191 repodir = argv[i];
192 if (!realpath(repodir, repodirabs))
193 err(1, "realpath");
194
195 if (git_repository_open_ext(&repo, repodir,
196 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
197 fprintf(stderr, "%s: cannot open repository\n", argv[0]);
198 ret = 1;
199 continue;
200 }
201
202 /* use directory name as name */
203 if ((name = strrchr(repodirabs, '/')))
204 name++;
205 else
206 name = "";
207
208 /* read description or .git/description */
209 joinpath(path, sizeof(path), repodir, "description");
210 if (!(fp = fopen(path, "r"))) {
211 joinpath(path, sizeof(path), repodir, ".git/description");
212 fp = fopen(path, "r");
213 }
214 description[0] = '\0';
215 if (fp) {
216 if (!fgets(description, sizeof(description), fp))
217 description[0] = '\0';
218 fclose(fp);
219 }
220
221 /* read owner or .git/owner */
222 joinpath(path, sizeof(path), repodir, "owner");
223 if (!(fp = fopen(path, "r"))) {
224 joinpath(path, sizeof(path), repodir, ".git/owner");
225 fp = fopen(path, "r");
226 }
227 owner[0] = '\0';
228 if (fp) {
229 if (!fgets(owner, sizeof(owner), fp))
230 owner[0] = '\0';
231 owner[strcspn(owner, "\n")] = '\0';
232 fclose(fp);
233 }
234 writelog(stdout);
235 }
236 writefooter(stdout);
237
238 /* cleanup */
239 git_repository_free(repo);
240 git_libgit2_shutdown();
241
242 return ret;
243 }