stagit-index.c (6927B)
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 fprintf(fp, "<!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>hhvn's website</title>\n" 103 "<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath); 104 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sindex.css\" />\n", relpath); 105 fputs("</head>\n<body>\n", fp); 106 fprintf(fp, "<h1>hhvn's website</h1>\n" 107 "<hr />\n" 108 "Mail me if you can: hayden<span><b><!---</b>--->@</b></span>hhvn<i><!---span <div>--->.</i>uk<br />\n" 109 "Spam me if you prefer: spamtrap@hhvn.uk<br />\n" 110 "<a href=\"./pgp.asc\">PGP key</a> & <a href=\"./ssh.pub\">SSH key</a>" 111 "<hr />\n" 112 "<a href=\"./blog\">Blog ---></a><hr />\n" 113 "Clearnet: <a href=\"//hhvn.uk\">hhvn.uk</a>\n" 114 "<span class=\"tor\">Tor: <a href=\"//zl7kawb6nd3aqzrwo5cz57id7rnp3k7rvsme5seopv65lcgm56ey2oyd.onion\">zl7kawb6nd3aqzrwo5cz57id7rnp3k7rvsme5seopv65lcgm56ey2oyd.onion</a></span><br />\n" 115 "Gopher: <a href=\"gopher://hhvn.uk\">gopher://hhvn.uk</a>\n" 116 "<span class=\"tor\">Gopher (tor): <a href=\"gopher://zl7kawb6nd3aqzrwo5cz57id7rnp3k7rvsme5seopv65lcgm56ey2oyd.onion\">gopher://zl7kawb6nd3aqzrwo5cz57id7rnp3k7rvsme5seopv65lcgm56ey2oyd.onion</a></span>\n" 117 "<hr />\n" 118 "<p>Anyway, here's some code:\n"); 119 fputs("</span></td></tr><tr><td></td><td>\n" 120 "</td></tr>\n</table>\n<div id=\"content\">\n" 121 "<table id=\"index\"><thead>\n" 122 "<tr><td><b>Name</b></td><td><b>Description</b></td><td></td>" 123 "<td><b>Last commit</b></td></tr>" 124 "</thead><tbody>\n", fp); 125 } 126 127 void 128 writefooter(FILE *fp) 129 { 130 fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp); 131 } 132 133 int 134 writelog(FILE *fp) 135 { 136 git_commit *commit = NULL; 137 const git_signature *author; 138 git_revwalk *w = NULL; 139 git_oid id; 140 char *stripped_name = NULL, *p; 141 int ret = 0; 142 143 git_revwalk_new(&w, repo); 144 git_revwalk_push_head(w); 145 146 if (git_revwalk_next(&id, w) || 147 git_commit_lookup(&commit, repo, &id)) { 148 ret = -1; 149 goto err; 150 } 151 152 author = git_commit_author(commit); 153 154 /* strip .git suffix */ 155 if (!(stripped_name = strdup(name))) 156 err(1, "strdup"); 157 if ((p = strrchr(stripped_name, '.'))) 158 if (!strcmp(p, ".git")) 159 *p = '\0'; 160 161 fputs("<tr><td><a href=\"", fp); 162 percentencode(fp, stripped_name, strlen(stripped_name)); 163 fputs("/log.html\">", fp); 164 xmlencode(fp, stripped_name, strlen(stripped_name)); 165 fputs("</a></td><td>", fp); 166 xmlencode(fp, description, strlen(description)); 167 fputs("</td><td>", fp); 168 xmlencode(fp, owner, strlen(owner)); 169 fputs("</td><td>", fp); 170 if (author) 171 printtimeshort(fp, &(author->when)); 172 fputs("</td></tr>", fp); 173 174 git_commit_free(commit); 175 err: 176 git_revwalk_free(w); 177 free(stripped_name); 178 179 return ret; 180 } 181 182 int 183 main(int argc, char *argv[]) 184 { 185 FILE *fp; 186 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 187 const char *repodir; 188 int i, ret = 0; 189 190 if (argc < 2) { 191 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 192 return 1; 193 } 194 195 /* do not search outside the git repository: 196 GIT_CONFIG_LEVEL_APP is the highest level currently */ 197 git_libgit2_init(); 198 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 199 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 200 /* do not require the git repository to be owned by the current user */ 201 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 202 203 #ifdef __OpenBSD__ 204 if (pledge("stdio rpath", NULL) == -1) 205 err(1, "pledge"); 206 #endif 207 208 writeheader(stdout); 209 210 for (i = 1; i < argc; i++) { 211 repodir = argv[i]; 212 if (!realpath(repodir, repodirabs)) 213 err(1, "realpath"); 214 215 if (git_repository_open_ext(&repo, repodir, 216 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 217 fprintf(stderr, "%s: cannot open repository\n", argv[0]); 218 ret = 1; 219 continue; 220 } 221 222 /* use directory name as name */ 223 if ((name = strrchr(repodirabs, '/'))) 224 name++; 225 else 226 name = ""; 227 228 /* read description or .git/description */ 229 joinpath(path, sizeof(path), repodir, "description"); 230 if (!(fp = fopen(path, "r"))) { 231 joinpath(path, sizeof(path), repodir, ".git/description"); 232 fp = fopen(path, "r"); 233 } 234 description[0] = '\0'; 235 if (fp) { 236 if (!fgets(description, sizeof(description), fp)) 237 description[0] = '\0'; 238 checkfileerror(fp, "description", 'r'); 239 fclose(fp); 240 } 241 242 /* read owner or .git/owner */ 243 joinpath(path, sizeof(path), repodir, "owner"); 244 if (!(fp = fopen(path, "r"))) { 245 joinpath(path, sizeof(path), repodir, ".git/owner"); 246 fp = fopen(path, "r"); 247 } 248 owner[0] = '\0'; 249 if (fp) { 250 if (!fgets(owner, sizeof(owner), fp)) 251 owner[0] = '\0'; 252 checkfileerror(fp, "owner", 'r'); 253 fclose(fp); 254 owner[strcspn(owner, "\n")] = '\0'; 255 } 256 writelog(stdout); 257 } 258 writefooter(stdout); 259 260 /* cleanup */ 261 git_repository_free(repo); 262 git_libgit2_shutdown(); 263 264 checkfileerror(stdout, "<stdout>", 'w'); 265 266 return ret; 267 }