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
11static git_repository* repo;
12
13static const char* relpath = "";
14
15static char description[255] = "Repositories";
16static char* name = "";
17static char owner[255];
18
19/* Handle read or write errors for a FILE * stream */
20void checkfileerror(FILE* fp, const char* name, int mode)
21{
22 if (mode == 'r' && ferror(fp))
23 errx(1, "read error: %s", name);
24 else if (mode == 'w' && (fflush(fp) || ferror(fp)))
25 errx(1, "write error: %s", name);
26}
27
28void joinpath(char* buf, size_t bufsiz, const char* path, const char* path2)
29{
30 int r;
31
32 r = snprintf(buf, bufsiz, "%s%s%s",
33 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
34 if (r < 0 || (size_t)r >= bufsiz)
35 errx(1, "path truncated: '%s%s%s'",
36 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
37}
38
39/* Percent-encode, see RFC3986 section 2.1. */
40void percentencode(FILE* fp, const char* s, size_t len)
41{
42 static char tab[] = "0123456789ABCDEF";
43 unsigned char uc;
44 size_t i;
45
46 for (i = 0; *s && i < len; s++, i++) {
47 uc = *s;
48 /* NOTE: do not encode '/' for paths or ",-." */
49 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') || uc == '[' || uc == ']') {
50 putc('%', fp);
51 putc(tab[(uc >> 4) & 0x0f], fp);
52 putc(tab[uc & 0x0f], fp);
53 } else {
54 putc(uc, fp);
55 }
56 }
57}
58
59/* Escape characters below as HTML 2.0 / XML 1.0. */
60void xmlencode(FILE* fp, const char* s, size_t len)
61{
62 size_t i;
63
64 for (i = 0; *s && i < len; s++, i++) {
65 switch (*s) {
66 case '<':
67 fputs("<", fp);
68 break;
69 case '>':
70 fputs(">", fp);
71 break;
72 case '\'':
73 fputs("'", fp);
74 break;
75 case '&':
76 fputs("&", fp);
77 break;
78 case '"':
79 fputs(""", fp);
80 break;
81 default:
82 putc(*s, fp);
83 }
84 }
85}
86
87void printtimeshort(FILE* fp, const git_time* intime)
88{
89 struct tm* intm;
90 time_t t;
91 char out[32];
92
93 t = (time_t)intime->time;
94 if (!(intm = gmtime(&t)))
95 return;
96 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
97 fputs(out, fp);
98}
99
100void writeheader(FILE* fp)
101{
102 fputs("<!DOCTYPE html>\n"
103 "<html>\n<head>\n"
104 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
105 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n"
106 "<title>",
107 fp);
108 xmlencode(fp, description, strlen(description));
109 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"https://git.arjun.lol/favicon.png\" />\n");
110 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"https://git.arjun.lol/style.css\" />\n");
111 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"https://git.arjun.lol/index-style.css\" />\n");
112 fputs("</head>\n<body>\n<div id=\"container\">\n<div id=\"sidebar\">\n<a id=\"logo\" href=\"https://arjun.lol\">\n<div id=\"typing\">ARJUN</div>\n<hr id=\"cursor\"/>\n</a>\n<img id=\"profile_img\" src=\"https://git.arjun.lol/me.webp\" alt=\"my_profile_image\"/>\n<div><a id=\"contact\" href=\"mailto:contact@arjunchoudhary.com\">Contact</a> | <a id=\"contact\" href=\"https://arjun.lol/public_pgp\">PGP</a>\n</div></div>\n<div id=\"main-view\">\n", fp);
113 fputs("<ul class=\"breadcrumb\"><li><a href=\"https://arjun.lol\">Home</a></li><li><a href=\"https://git.arjun.lol\">Repositories</a></li></ul>", fp);
114 fprintf(fp, "<div id=\"header\"><h1 id=\"repositories\">");
115 xmlencode(fp, description, strlen(description));
116 fputs("</h1><div id=\"subtitle\"><span class=\"desc\"> Somewhat sorted collection of some of my projects. | </span><a href=\"https://arjun.lol\">Back</a></div></div></td></tr>\n</table>\n<div id=\"content\">\n"
117 "<div id=\"index\">\n",fp);
118}
119
120void writefooter(FILE* fp)
121{
122 fputs("</div>\n</div>\n<footer><nav><ul><li><a href=\"https://creativecommons.org/licenses/by-sa/4.0/\">License</a></li><li><a href=\"https://arjun.lol/privacy\">Privacy</a></li><li><a href=\"https://git.arjun.lol/Stagit/file/README.md.html\">Source</a></li><li><a href=\"https://arjun.lol/usage\">Usage</a></li></ul></nav></footer>\n</div>\n</div>\n</body>\n</html>\n", fp);
123}
124
125int writelog(FILE* fp)
126{
127 git_commit* commit = NULL;
128 const git_signature* author;
129 git_revwalk* w = NULL;
130 git_oid id;
131 char *stripped_name = NULL, *p;
132 int ret = 0;
133
134 git_revwalk_new(&w, repo);
135 git_revwalk_push_head(w);
136
137 if (git_revwalk_next(&id, w) || git_commit_lookup(&commit, repo, &id)) {
138 ret = -1;
139 goto err;
140 }
141
142 author = git_commit_author(commit);
143
144 /* strip .git suffix */
145 if (!(stripped_name = strdup(name)))
146 err(1, "strdup");
147 if ((p = strrchr(stripped_name, '.')))
148 if (!strcmp(p, ".git"))
149 *p = '\0';
150
151 fputs("<h2><a href=\"", fp);
152 percentencode(fp, stripped_name, strlen(stripped_name));
153 fputs("/file/README.md.html\">", fp);
154 xmlencode(fp, stripped_name, strlen(stripped_name));
155 fputs("</a></h2><p>", fp);
156 xmlencode(fp, description, strlen(description));
157 fputs("</p>", fp);
158/* xmlencode(fp, owner, strlen(owner));
159 fputs("</p><p>", fp);
160 if (author)
161 printtimeshort(fp, &(author->when));
162 fputs("</p>", fp); */
163
164 git_commit_free(commit);
165err:
166 git_revwalk_free(w);
167 free(stripped_name);
168
169 return ret;
170}
171
172int main(int argc, char* argv[])
173{
174 FILE* fp;
175 char path[PATH_MAX], repodirabs[PATH_MAX + 1];
176 const char* repodir;
177 int i, ret = 0;
178
179 if (argc < 2) {
180 fprintf(stderr, "%s [repodir...]\n", argv[0]);
181 return 1;
182 }
183
184 /* do not search outside the git repository:
185 GIT_CONFIG_LEVEL_APP is the highest level currently */
186 git_libgit2_init();
187 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++)
188 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, "");
189
190#ifdef __OpenBSD__
191 if (pledge("stdio rpath", NULL) == -1)
192 err(1, "pledge");
193#endif
194
195 writeheader(stdout);
196
197 for (i = 1; i < argc; i++) {
198 repodir = argv[i];
199 if (!realpath(repodir, repodirabs))
200 err(1, "realpath");
201
202 if (git_repository_open_ext(&repo, repodir,
203 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
204 fprintf(stderr, "%s: cannot open repository\n", argv[0]);
205 ret = 1;
206 continue;
207 }
208
209 /* use directory name as name */
210 if ((name = strrchr(repodirabs, '/')))
211 name++;
212 else
213 name = "";
214
215 /* read description or .git/description */
216 joinpath(path, sizeof(path), repodir, "description");
217 if (!(fp = fopen(path, "r"))) {
218 joinpath(path, sizeof(path), repodir, ".git/description");
219 fp = fopen(path, "r");
220 }
221 description[0] = '\0';
222 if (fp) {
223 if (!fgets(description, sizeof(description), fp))
224 description[0] = '\0';
225 checkfileerror(fp, "description", 'r');
226 fclose(fp);
227 }
228
229 /* read owner or .git/owner */
230 joinpath(path, sizeof(path), repodir, "owner");
231 if (!(fp = fopen(path, "r"))) {
232 joinpath(path, sizeof(path), repodir, ".git/owner");
233 fp = fopen(path, "r");
234 }
235 owner[0] = '\0';
236 if (fp) {
237 if (!fgets(owner, sizeof(owner), fp))
238 owner[0] = '\0';
239 checkfileerror(fp, "owner", 'r');
240 fclose(fp);
241 owner[strcspn(owner, "\n")] = '\0';
242 }
243 writelog(stdout);
244 }
245 writefooter(stdout);
246
247 /* cleanup */
248 git_repository_free(repo);
249 git_libgit2_shutdown();
250
251 checkfileerror(stdout, "<stdout>", 'w');
252
253 return ret;
254}