stagit-index.c (raw) (7575B)
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 char *binary; 12 13 static git_repository *repo; 14 15 static const char *rootpath = "/"; 16 static const char *relpath = ""; 17 18 static char description[255] = "gearsix source code"; 19 static char *name = "gearsix"; 20 static char *contact = "gearsix@tuta.io"; 21 static char owner[255]; 22 23 /* Handle read or write errors for a FILE * stream */ 24 void 25 checkfileerror(FILE *fp, const char *name, int mode) 26 { 27 if (mode == 'r' && ferror(fp)) 28 errx(1, "read error: %s", name); 29 else if (mode == 'w' && (fflush(fp) || ferror(fp))) 30 errx(1, "write error: %s", name); 31 } 32 33 void 34 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2) 35 { 36 int r; 37 38 r = snprintf(buf, bufsiz, "%s%s%s", 39 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 40 if (r < 0 || (size_t)r >= bufsiz) 41 errx(1, "path truncated: '%s%s%s'", 42 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 43 } 44 45 /* Percent-encode, see RFC3986 section 2.1. */ 46 void 47 percentencode(FILE *fp, const char *s, size_t len) 48 { 49 static char tab[] = "0123456789ABCDEF"; 50 unsigned char uc; 51 size_t i; 52 53 for (i = 0; *s && i < len; s++, i++) { 54 uc = *s; 55 /* NOTE: do not encode '/' for paths or ",-." */ 56 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') || 57 uc == '[' || uc == ']') { 58 putc('%', fp); 59 putc(tab[(uc >> 4) & 0x0f], fp); 60 putc(tab[uc & 0x0f], fp); 61 } else { 62 putc(uc, fp); 63 } 64 } 65 } 66 67 /* Escape characters below as HTML 2.0 / XML 1.0. */ 68 void 69 xmlencode(FILE *fp, const char *s, size_t len) 70 { 71 size_t i; 72 73 for (i = 0; *s && i < len; s++, i++) { 74 switch(*s) { 75 case '<': fputs("<", fp); break; 76 case '>': fputs(">", fp); break; 77 case '\'': fputs("'" , fp); break; 78 case '&': fputs("&", fp); break; 79 case '"': fputs(""", fp); break; 80 default: putc(*s, fp); 81 } 82 } 83 } 84 85 void 86 printtimeshort(FILE *fp, const git_time *intime) 87 { 88 struct tm *intm; 89 time_t t; 90 char out[32]; 91 92 t = (time_t)intime->time; 93 if (!(intm = gmtime(&t))) 94 return; 95 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm); 96 fputs(out, fp); 97 } 98 99 void 100 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>", fp); 107 xmlencode(fp, description, strlen(description)); 108 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", rootpath); 109 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", rootpath); 110 fputs("</head><body>\n", fp); 111 fprintf(fp, "<table>\n<tr>" 112 "<td id=\"logo\"><img src=\"%slogo.png\" alt=\"\" width=\"75px\" height=\"75px\" /></td>\n" 113 "<td><h2>%s</h2>", rootpath, description); 114 if (contact && strlen(contact) > 0) { 115 int c = strlen(contact)-1; 116 fprintf(fp, "<span class=\"contact\"><b>contact:</b> "); 117 fprintf(fp, "<author style='white-space: nowrap; unicode-bidi:bidi-override; direction: rtl;'>"); 118 for (; c > -1; --c) fprintf(fp, "%c", contact[c]); 119 fprintf(fp, "</author></span>\n"); 120 } 121 fputs("</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n", fp); 122 } 123 124 void 125 writebodyhead(FILE *fp) { 126 fputs("<table class=\"index\"><thead>\n" 127 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>" 128 "<td><b>Last commit</b></td></tr>" 129 "</thead><tbody>\n", fp); 130 } 131 132 int 133 writelog(FILE *fp) 134 { 135 git_commit *commit = NULL; 136 const git_signature *author; 137 git_revwalk *w = NULL; 138 git_oid id; 139 char *stripped_name = NULL, *p; 140 int ret = 0; 141 142 git_revwalk_new(&w, repo); 143 git_revwalk_push_head(w); 144 145 if (git_revwalk_next(&id, w) || 146 git_commit_lookup(&commit, repo, &id)) { 147 ret = -1; 148 goto err; 149 } 150 151 author = git_commit_author(commit); 152 153 /* strip .git suffix */ 154 if (!(stripped_name = strdup(name))) 155 err(1, "strdup"); 156 if ((p = strrchr(stripped_name, '.'))) 157 if (!strcmp(p, ".git")) 158 *p = '\0'; 159 160 fputs("<tr><td><a href=\"", fp); 161 percentencode(fp, stripped_name, strlen(stripped_name)); 162 fputs("/log.html\">", fp); 163 xmlencode(fp, stripped_name, strlen(stripped_name)); 164 fputs("</a></td><td>", fp); 165 xmlencode(fp, description, strlen(description)); 166 fputs("</td><td>", fp); 167 xmlencode(fp, owner, strlen(owner)); 168 fputs("</td><td>", fp); 169 if (author) 170 printtimeshort(fp, &(author->when)); 171 fputs("</td></tr>", fp); 172 173 git_commit_free(commit); 174 err: 175 git_revwalk_free(w); 176 free(stripped_name); 177 178 return ret; 179 } 180 181 /* forks: 182 * 0 = only add repo if .git/fork is not present 183 * 1 = only add repo if .git/fork is present 184 * 2 = add repo regardless of .git/fork file presence 185 */ 186 int 187 writebody(FILE *fp, char *repodir, int forks) { 188 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 189 190 if (!realpath(repodir, repodirabs)) 191 err(1, "realpath"); 192 193 if (git_repository_open_ext(&repo, repodir, 194 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 195 fprintf(stderr, "%s: cannot open repository '%s'\n", binary, repodir); 196 return 1; 197 } 198 199 // check .git/fork 200 if (forks != 2) { 201 joinpath(path, sizeof(path), repodir, ".git/fork"); 202 fp = fopen(path, "r"); 203 if (!fp && forks == 1) 204 return 0; 205 if (fp) { 206 checkfileerror(fp, ".git/fork", 'r'); 207 fclose(fp); 208 if (forks == 0) 209 return 0; 210 } 211 } 212 213 /* use directory name as name */ 214 if ((name = strrchr(repodirabs, '/'))) 215 name++; 216 else 217 name = ""; 218 219 /* read description or .git/description */ 220 joinpath(path, sizeof(path), repodir, "description"); 221 if (!(fp = fopen(path, "r"))) { 222 joinpath(path, sizeof(path), repodir, ".git/description"); 223 fp = fopen(path, "r"); 224 } 225 description[0] = '\0'; 226 if (fp) { 227 if (!fgets(description, sizeof(description), fp)) 228 description[0] = '\0'; 229 checkfileerror(fp, "description", 'r'); 230 fclose(fp); 231 } 232 233 /* read owner or .git/owner */ 234 joinpath(path, sizeof(path), repodir, "owner"); 235 if (!(fp = fopen(path, "r"))) { 236 joinpath(path, sizeof(path), repodir, ".git/owner"); 237 fp = fopen(path, "r"); 238 } 239 owner[0] = '\0'; 240 if (fp) { 241 if (!fgets(owner, sizeof(owner), fp)) 242 owner[0] = '\0'; 243 owner[strcspn(owner, "\n")] = '\0'; 244 checkfileerror(fp, "owner", 'r'); 245 fclose(fp); 246 } 247 writelog(stdout); 248 } 249 250 void 251 writebodyfoot(FILE *fp) 252 { 253 fputs("</tbody>\n</table></details>\n", fp); 254 } 255 256 void 257 writefooter(FILE *fp) 258 { 259 fputs("</div>\n</body>\n</html>\n", fp); 260 } 261 262 int 263 main(int argc, char *argv[]) 264 { 265 FILE *fp; 266 const char *repodir; 267 int i, ret = 0; 268 269 binary = argv[0]; 270 if (argc < 2) { 271 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 272 return 1; 273 } 274 275 /* do not search outside the git repository: 276 GIT_CONFIG_LEVEL_APP is the highest level currently */ 277 git_libgit2_init(); 278 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 279 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 280 /* do not require the git repository to be owned by the current user */ 281 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 282 283 #ifdef __OpenBSD__ 284 if (pledge("stdio rpath", NULL) == -1) 285 err(1, "pledge"); 286 #endif 287 288 writeheader(stdout); 289 290 writebodyhead(stdout); 291 for (i = 1; i < argc; i++) { 292 if ( writebody(stdout, argv[i], 0) != 0 ) { 293 ret = 1; 294 continue; 295 } 296 } 297 writebodyfoot(stdout); 298 299 fputs("<details open><summary><b>forks</b></summary>", stdout); 300 writebodyhead(stdout); 301 for (i = 1; i < argc; i++) { 302 if ( writebody(stdout, argv[i], 1) != 0 ) { 303 ret = 1; 304 continue; 305 } 306 } 307 writebodyfoot(stdout); 308 fputs("</details>", stdout); 309 310 writefooter(stdout); 311 312 /* cleanup */ 313 git_repository_free(repo); 314 git_libgit2_shutdown(); 315 316 checkfileerror(stdout, "<stdout>", 'w'); 317 318 return ret; 319 }