stagit-index.c (7024B)
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 #define LEN(s) (sizeof(s)/sizeof(*s)) 12 13 static git_repository *repo; 14 15 static const char *relpath = ""; 16 static char *readmefiles[] = { "HEAD:README", "HEAD:README.md", "HEAD:readme.md", "HEAD:README.org", "HEAD:readme.org" }; 17 18 static char description[255] = "Repositories"; 19 static char last_development[41] = ""; 20 static char *name = ""; 21 static char *readme = NULL; 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", relpath); 109 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath); 110 fputs("</head>\n<body>\n", fp); 111 fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n" 112 "<td><span class=\"desc\">", relpath); 113 xmlencode(fp, description, strlen(description)); 114 fputs("</span></td></tr><tr><td></td><td>\n" 115 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n" 116 "<table id=\"index\"><thead>\n" 117 "<tr><td><b>Name</b></td><td><b>Description</b></td>" 118 "<td><b>Last development</b></td></tr>" 119 "</thead><tbody>\n", fp); 120 } 121 122 void 123 writefooter(FILE *fp) 124 { 125 fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp); 126 } 127 128 int 129 writelog(FILE *fp) 130 { 131 git_commit *commit = NULL; 132 const git_signature *author; 133 git_revwalk *w = NULL; 134 git_oid id; 135 char *stripped_name = NULL, *p; 136 int ret = 0; 137 138 git_revwalk_new(&w, repo); 139 git_revwalk_push_head(w); 140 141 if (git_oid_fromstr(&id, last_development) && 142 git_revwalk_next(&id, w)) { 143 fprintf(stderr, "failed to get good commit id for %s", name); 144 ret = -1; 145 goto err; 146 } 147 148 if (git_commit_lookup(&commit, repo, &id)) { 149 fprintf(stderr, "failed get commit info for %s\n", name); 150 ret = -1; 151 goto err; 152 } 153 154 author = git_commit_author(commit); 155 156 /* strip .git suffix */ 157 if (!(stripped_name = strdup(name))) 158 err(1, "strdup"); 159 if ((p = strrchr(stripped_name, '.'))) 160 if (!strcmp(p, ".git")) 161 *p = '\0'; 162 163 fputs("<tr><td><a href=\"", fp); 164 percentencode(fp, stripped_name, strlen(stripped_name)); 165 166 if (readme != NULL) { 167 fprintf(fp, "/file/%s.html\">", readme); 168 } else { 169 fputs("/log.html\">", fp); 170 } 171 172 xmlencode(fp, stripped_name, strlen(stripped_name)); 173 fputs("</a></td><td>", fp); 174 xmlencode(fp, description, strlen(description)); 175 fputs("</td><td>", fp); 176 if (author) 177 printtimeshort(fp, &(author->when)); 178 fputs("</td></tr>", fp); 179 180 git_commit_free(commit); 181 err: 182 git_revwalk_free(w); 183 free(stripped_name); 184 185 return ret; 186 } 187 188 int 189 main(int argc, char *argv[]) 190 { 191 FILE *fp; 192 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 193 const char *repodir; 194 int i, j, ret = 0; 195 git_object *obj = NULL; 196 197 if (argc < 2) { 198 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 199 return 1; 200 } 201 202 /* do not search outside the git repository: 203 GIT_CONFIG_LEVEL_APP is the highest level currently */ 204 git_libgit2_init(); 205 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 206 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 207 /* do not require the git repository to be owned by the current user */ 208 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 209 210 #ifdef __OpenBSD__ 211 if (pledge("stdio rpath", NULL) == -1) 212 err(1, "pledge"); 213 #endif 214 215 writeheader(stdout); 216 217 for (i = 1; i < argc; i++) { 218 repodir = argv[i]; 219 if (!realpath(repodir, repodirabs)) 220 err(1, "realpath"); 221 222 if (git_repository_open_ext(&repo, repodir, 223 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 224 fprintf(stderr, "%s: cannot open repository\n", argv[0]); 225 ret = 1; 226 continue; 227 } 228 229 /* use directory name as name */ 230 if ((name = strrchr(repodirabs, '/'))) 231 name++; 232 else 233 name = ""; 234 235 /* read description or .git/description */ 236 joinpath(path, sizeof(path), repodir, "description"); 237 if (!(fp = fopen(path, "r"))) { 238 joinpath(path, sizeof(path), repodir, ".git/description"); 239 fp = fopen(path, "r"); 240 } 241 description[0] = '\0'; 242 if (fp) { 243 if (!fgets(description, sizeof(description), fp)) 244 description[0] = '\0'; 245 checkfileerror(fp, "description", 'r'); 246 fclose(fp); 247 } 248 249 /* read last-development or .git/last-development */ 250 joinpath(path, sizeof(path), repodir, "last-development"); 251 if (!(fp = fopen(path, "r"))) { 252 joinpath(path, sizeof(path), repodir, ".git/last-development"); 253 fp = fopen(path, "r"); 254 } 255 last_development[0] = '\0'; 256 if (fp) { 257 if (!fgets(last_development, sizeof(last_development), fp)) 258 last_development[0] = '\0'; 259 checkfileerror(fp, "last-development", 'r'); 260 fclose(fp); 261 } 262 263 for (j = 0; j < LEN(readmefiles) && !readme; j++) { 264 if (!git_revparse_single(&obj, repo, readmefiles[j]) && 265 git_object_type(obj) == GIT_OBJ_BLOB) { 266 readme = readmefiles[j] + strlen("HEAD:"); 267 } 268 git_object_free(obj); 269 } 270 271 writelog(stdout); 272 readme = NULL; 273 } 274 writefooter(stdout); 275 276 /* cleanup */ 277 git_repository_free(repo); 278 git_libgit2_shutdown(); 279 280 checkfileerror(stdout, "<stdout>", 'w'); 281 282 return ret; 283 }