stagit-index.c (6930B)
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 17 static char description[255] = "Repositories"; 18 static char *name = ""; 19 static char owner[255]; 20 21 static char *readmefiles[] = { "HEAD:README", "HEAD:README.md" }; 22 static char *readme; 23 24 /* Handle read or write errors for a FILE * stream */ 25 void 26 checkfileerror(FILE *fp, const char *name, int mode) 27 { 28 if (mode == 'r' && ferror(fp)) 29 errx(1, "read error: %s", name); 30 else if (mode == 'w' && (fflush(fp) || ferror(fp))) 31 errx(1, "write error: %s", name); 32 } 33 34 void 35 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2) 36 { 37 int r; 38 39 r = snprintf(buf, bufsiz, "%s%s%s", 40 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 41 if (r < 0 || (size_t)r >= bufsiz) 42 errx(1, "path truncated: '%s%s%s'", 43 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 44 } 45 46 /* Percent-encode, see RFC3986 section 2.1. */ 47 void 48 percentencode(FILE *fp, const char *s, size_t len) 49 { 50 static char tab[] = "0123456789ABCDEF"; 51 unsigned char uc; 52 size_t i; 53 54 for (i = 0; *s && i < len; s++, i++) { 55 uc = *s; 56 /* NOTE: do not encode '/' for paths or ",-." */ 57 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') || 58 uc == '[' || uc == ']') { 59 putc('%', fp); 60 putc(tab[(uc >> 4) & 0x0f], fp); 61 putc(tab[uc & 0x0f], fp); 62 } else { 63 putc(uc, fp); 64 } 65 } 66 } 67 68 /* Escape characters below as HTML 2.0 / XML 1.0. */ 69 void 70 xmlencode(FILE *fp, const char *s, size_t len) 71 { 72 size_t i; 73 74 for (i = 0; *s && i < len; s++, i++) { 75 switch(*s) { 76 case '<': fputs("<", fp); break; 77 case '>': fputs(">", fp); break; 78 case '\'': fputs("'" , fp); break; 79 case '&': fputs("&", fp); break; 80 case '"': fputs(""", fp); break; 81 default: putc(*s, fp); 82 } 83 } 84 } 85 86 void 87 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 } 99 100 void 101 writeheader(FILE *fp) 102 { 103 fputs("<!DOCTYPE html>\n" 104 "<html>\n<head>\n" 105 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n" 106 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n" 107 "<title>", fp); 108 xmlencode(fp, description, strlen(description)); 109 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath); 110 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath); 111 fputs("</head>\n<body>\n", fp); 112 fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n" 113 "<td><span class=\"desc\">", relpath); 114 xmlencode(fp, description, strlen(description)); 115 fputs("</span></td></tr><tr><td></td><td>\n" 116 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n" 117 "<table id=\"index\"><thead>\n" 118 "<tr><td><b>Name</b></td><td><b>Description</b></td>" 119 // "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>" 120 "<td><b>Last commit</b></td></tr>" 121 "</thead><tbody>\n", fp); 122 } 123 124 void 125 writefooter(FILE *fp) 126 { 127 fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp); 128 } 129 130 int 131 writelog(FILE *fp) 132 { 133 git_commit *commit = NULL; 134 const git_signature *author; 135 git_revwalk *w = NULL; 136 git_oid id; 137 char *stripped_name = NULL, *p; 138 int ret = 0; 139 140 git_revwalk_new(&w, repo); 141 git_revwalk_push_head(w); 142 143 if (git_revwalk_next(&id, w) || 144 git_commit_lookup(&commit, repo, &id)) { 145 ret = -1; 146 goto err; 147 } 148 149 author = git_commit_author(commit); 150 151 /* strip .git suffix */ 152 if (!(stripped_name = strdup(name))) 153 err(1, "strdup"); 154 if ((p = strrchr(stripped_name, '.'))) 155 if (!strcmp(p, ".git")) 156 *p = '\0'; 157 158 fputs("<tr><td><a href=\"", fp); 159 percentencode(fp, stripped_name, strlen(stripped_name)); 160 if (readme) fprintf(fp, "/file/%s.html\">", readme); 161 else 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 int 181 main(int argc, char *argv[]) 182 { 183 FILE *fp; 184 git_object *obj = NULL; 185 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 186 const char *repodir; 187 int i, j, ret = 0; 188 189 if (argc < 2) { 190 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 191 return 1; 192 } 193 194 /* do not search outside the git repository: 195 GIT_CONFIG_LEVEL_APP is the highest level currently */ 196 git_libgit2_init(); 197 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 198 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 199 /* do not require the git repository to be owned by the current user */ 200 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 201 202 #ifdef __OpenBSD__ 203 if (pledge("stdio rpath", NULL) == -1) 204 err(1, "pledge"); 205 #endif 206 207 writeheader(stdout); 208 209 for (i = 1; i < argc; i++) { 210 repodir = argv[i]; 211 if (!realpath(repodir, repodirabs)) 212 err(1, "realpath"); 213 214 if (git_repository_open_ext(&repo, repodir, 215 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 216 fprintf(stderr, "%s: cannot open repository\n", argv[0]); 217 ret = 1; 218 continue; 219 } 220 221 /* use directory name as name */ 222 if ((name = strrchr(repodirabs, '/'))) 223 name++; 224 else 225 name = ""; 226 227 /* read description or .git/description */ 228 joinpath(path, sizeof(path), repodir, "description"); 229 if (!(fp = fopen(path, "r"))) { 230 joinpath(path, sizeof(path), repodir, ".git/description"); 231 fp = fopen(path, "r"); 232 } 233 description[0] = '\0'; 234 if (fp) { 235 if (!fgets(description, sizeof(description), fp)) 236 description[0] = '\0'; 237 checkfileerror(fp, "description", 'r'); 238 fclose(fp); 239 } 240 241 /* read owner or .git/owner */ 242 joinpath(path, sizeof(path), repodir, "owner"); 243 if (!(fp = fopen(path, "r"))) { 244 joinpath(path, sizeof(path), repodir, ".git/owner"); 245 fp = fopen(path, "r"); 246 } 247 owner[0] = '\0'; 248 if (fp) { 249 if (!fgets(owner, sizeof(owner), fp)) 250 owner[0] = '\0'; 251 checkfileerror(fp, "owner", 'r'); 252 fclose(fp); 253 owner[strcspn(owner, "\n")] = '\0'; 254 } 255 256 /* check README */ 257 for (j = 0; j < LEN(readmefiles) && !readme; j++) { 258 if (!git_revparse_single(&obj, repo, readmefiles[j]) && 259 git_object_type(obj) == GIT_OBJ_BLOB) 260 readme = readmefiles[j] + strlen("HEAD:"); 261 git_object_free(obj); 262 } 263 264 writelog(stdout); 265 if (readme) readme = NULL; 266 } 267 writefooter(stdout); 268 269 /* cleanup */ 270 git_repository_free(repo); 271 git_libgit2_shutdown(); 272 273 checkfileerror(stdout, "<stdout>", 'w'); 274 275 return ret; 276 }