stagit-index.c (6286B)
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 fputs("<!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>", fp); 103 xmlencode(fp, description, strlen(description)); 104 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath); 105 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath); 106 fputs("</head>\n<body>\n", fp); 107 fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"64\" height=\"64\" /></td>\n" 108 "<td><span class=\"desc\">", relpath); 109 xmlencode(fp, description, strlen(description)); 110 fputs("</span></td></tr><tr><td></td><td>\n" 111 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n" 112 "<table id=\"index\"><thead>\n" 113 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>" 114 "<td><b>Last commit</b></td></tr>" 115 "</thead><tbody>\n", fp); 116 } 117 118 void 119 writefooter(FILE *fp) 120 { 121 fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp); 122 } 123 124 int 125 writelog(FILE *fp) 126 { 127 git_commit *commit = NULL; 128 const git_signature *author; 129 git_revwalk *w = NULL; 130 git_oid id; 131 char *stripped_name = NULL, *p; 132 int ret = 0; 133 134 git_revwalk_new(&w, repo); 135 git_revwalk_push_head(w); 136 137 if (git_revwalk_next(&id, w) || 138 git_commit_lookup(&commit, repo, &id)) { 139 ret = -1; 140 goto err; 141 } 142 143 author = git_commit_author(commit); 144 145 /* strip .git suffix */ 146 if (!(stripped_name = strdup(name))) 147 err(1, "strdup"); 148 if ((p = strrchr(stripped_name, '.'))) 149 if (!strcmp(p, ".git")) 150 *p = '\0'; 151 152 fputs("<tr><td><a href=\"", fp); 153 percentencode(fp, stripped_name, strlen(stripped_name)); 154 fputs("/log.html\">", fp); 155 xmlencode(fp, stripped_name, strlen(stripped_name)); 156 fputs("</a></td><td>", fp); 157 xmlencode(fp, description, strlen(description)); 158 fputs("</td><td>", fp); 159 xmlencode(fp, owner, strlen(owner)); 160 fputs("</td><td>", fp); 161 if (author) 162 printtimeshort(fp, &(author->when)); 163 fputs("</td></tr>", fp); 164 165 git_commit_free(commit); 166 err: 167 git_revwalk_free(w); 168 free(stripped_name); 169 170 return ret; 171 } 172 173 int 174 main(int argc, char *argv[]) 175 { 176 FILE *fp; 177 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 178 const char *repodir; 179 int i, ret = 0; 180 181 if (argc < 2) { 182 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 183 return 1; 184 } 185 186 /* do not search outside the git repository: 187 GIT_CONFIG_LEVEL_APP is the highest level currently */ 188 git_libgit2_init(); 189 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 190 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 191 /* do not require the git repository to be owned by the current user */ 192 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 193 194 #ifdef __OpenBSD__ 195 if (pledge("stdio rpath", NULL) == -1) 196 err(1, "pledge"); 197 #endif 198 199 writeheader(stdout); 200 201 for (i = 1; i < argc; i++) { 202 repodir = argv[i]; 203 if (!realpath(repodir, repodirabs)) 204 err(1, "realpath"); 205 206 if (git_repository_open_ext(&repo, repodir, 207 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 208 fprintf(stderr, "%s: cannot open repository\n", argv[0]); 209 ret = 1; 210 continue; 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 checkfileerror(fp, "owner", 'r'); 244 fclose(fp); 245 owner[strcspn(owner, "\n")] = '\0'; 246 } 247 writelog(stdout); 248 } 249 writefooter(stdout); 250 251 /* cleanup */ 252 git_repository_free(repo); 253 git_libgit2_shutdown(); 254 255 checkfileerror(stdout, "<stdout>", 'w'); 256 257 return ret; 258 }