stagit-index.c (7405B)
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><td id=\"logo\"><img src=\"%slogo.png\" alt=\"\" width=\"50\" height=\"50\" /></td>\n" 112 "<td><h2>%s</h2>", rootpath, description); 113 if (contact && strlen(contact) > 0) { 114 int c = strlen(contact)-1; 115 fprintf(fp, "<span class=\"contact\"><b>contact:</b> "); 116 fprintf(fp, "<author style='white-space: nowrap; unicode-bidi:bidi-override; direction: rtl;'>"); 117 for (; c > -1; --c) fprintf(fp, "%c", contact[c]); 118 fprintf(fp, "</author></span>\n"); 119 } 120 fputs("</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n", fp); 121 } 122 123 void 124 writebodyhead(FILE *fp) { 125 fputs("<table class=\"index\"><thead>\n" 126 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>" 127 "<td><b>Last commit</b></td></tr>" 128 "</thead><tbody>\n", fp); 129 } 130 131 int 132 writelog(FILE *fp) 133 { 134 git_commit *commit = NULL; 135 const git_signature *author; 136 git_revwalk *w = NULL; 137 git_oid id; 138 char *stripped_name = NULL, *p; 139 int ret = 0; 140 141 git_revwalk_new(&w, repo); 142 git_revwalk_push_head(w); 143 144 if (git_revwalk_next(&id, w) || 145 git_commit_lookup(&commit, repo, &id)) { 146 ret = -1; 147 goto err; 148 } 149 150 author = git_commit_author(commit); 151 152 /* strip .git suffix */ 153 if (!(stripped_name = strdup(name))) 154 err(1, "strdup"); 155 if ((p = strrchr(stripped_name, '.'))) 156 if (!strcmp(p, ".git")) 157 *p = '\0'; 158 159 fputs("<tr><td><a href=\"", fp); 160 percentencode(fp, stripped_name, strlen(stripped_name)); 161 fputs("/log.html\">", fp); 162 xmlencode(fp, stripped_name, strlen(stripped_name)); 163 fputs("</a></td><td>", fp); 164 xmlencode(fp, description, strlen(description)); 165 fputs("</td><td>", fp); 166 xmlencode(fp, owner, strlen(owner)); 167 fputs("</td><td>", fp); 168 if (author) 169 printtimeshort(fp, &(author->when)); 170 fputs("</td></tr>", fp); 171 172 git_commit_free(commit); 173 err: 174 git_revwalk_free(w); 175 free(stripped_name); 176 177 return ret; 178 } 179 180 /* forks: 181 * 0 = only add repo if .git/fork is not present 182 * 1 = only add repo if .git/fork is present 183 * 2 = add repo regardless of .git/fork file presence 184 */ 185 int 186 writebody(FILE *fp, char *repodir, int forks) { 187 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 188 189 if (!realpath(repodir, repodirabs)) 190 err(1, "realpath"); 191 192 if (git_repository_open_ext(&repo, repodir, 193 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 194 fprintf(stderr, "%s: cannot open repository '%s'\n", binary, repodir); 195 return 1; 196 } 197 198 // check .git/fork 199 if (forks != 2) { 200 joinpath(path, sizeof(path), repodir, ".git/fork"); 201 fp = fopen(path, "r"); 202 if ((fp && forks == 0) || (!fp && forks == 1)) 203 return 0; 204 } 205 206 /* use directory name as name */ 207 if ((name = strrchr(repodirabs, '/'))) 208 name++; 209 else 210 name = ""; 211 212 /* read description or .git/description */ 213 joinpath(path, sizeof(path), repodir, "description"); 214 if (!(fp = fopen(path, "r"))) { 215 joinpath(path, sizeof(path), repodir, ".git/description"); 216 fp = fopen(path, "r"); 217 } 218 description[0] = '\0'; 219 if (fp) { 220 if (!fgets(description, sizeof(description), fp)) 221 description[0] = '\0'; 222 fclose(fp); 223 } 224 225 /* read owner or .git/owner */ 226 joinpath(path, sizeof(path), repodir, "owner"); 227 if (!(fp = fopen(path, "r"))) { 228 joinpath(path, sizeof(path), repodir, ".git/owner"); 229 fp = fopen(path, "r"); 230 } 231 owner[0] = '\0'; 232 if (fp) { 233 if (!fgets(owner, sizeof(owner), fp)) 234 owner[0] = '\0'; 235 owner[strcspn(owner, "\n")] = '\0'; 236 fclose(fp); 237 } 238 writelog(stdout); 239 } 240 241 void 242 writebodyfoot(FILE *fp) 243 { 244 fputs("</tbody>\n</table></details>\n", fp); 245 } 246 247 void 248 writefooter(FILE *fp) 249 { 250 fputs("</div>\n</body>\n</html>\n", fp); 251 } 252 253 int 254 main(int argc, char *argv[]) 255 { 256 FILE *fp; 257 const char *repodir; 258 int i, ret = 0; 259 260 binary = argv[0]; 261 if (argc < 2) { 262 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 263 return 1; 264 } 265 266 /* do not search outside the git repository: 267 GIT_CONFIG_LEVEL_APP is the highest level currently */ 268 git_libgit2_init(); 269 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 270 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 271 /* do not require the git repository to be owned by the current user */ 272 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 273 274 #ifdef __OpenBSD__ 275 if (pledge("stdio rpath", NULL) == -1) 276 err(1, "pledge"); 277 #endif 278 279 writeheader(stdout); 280 281 writebodyhead(stdout); 282 for (i = 1; i < argc; i++) { 283 ret = writebody(stdout, argv[i], 0); 284 if (ret != 0) 285 return ret; 286 } 287 writebodyfoot(stdout); 288 289 fputs("<details open><summary><b>forks</b></summary>", stdout); 290 writebodyhead(stdout); 291 for (i = 1; i < argc; i++) { 292 ret = writebody(stdout, argv[i], 1); 293 if (ret != 0) 294 return ret; 295 } 296 writebodyfoot(stdout); 297 fputs("</details>", stdout); 298 299 writefooter(stdout); 300 301 /* cleanup */ 302 git_repository_free(repo); 303 git_libgit2_shutdown(); 304 305 checkfileerror(stdout, "<stdout>", 'w'); 306 307 return ret; 308 }