stagit-index.c (7423B) - raw
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] = "Oscar Benedito's Git repositories"; 16 static char *name = ""; 17 static char owner[255]; 18 static char category[255]; 19 20 /* Handle read or write errors for a FILE * stream */ 21 void 22 checkfileerror(FILE *fp, const char *name, int mode) 23 { 24 if (mode == 'r' && ferror(fp)) 25 errx(1, "read error: %s", name); 26 else if (mode == 'w' && (fflush(fp) || ferror(fp))) 27 errx(1, "write error: %s", name); 28 } 29 30 void 31 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2) 32 { 33 int r; 34 35 r = snprintf(buf, bufsiz, "%s%s%s", 36 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 37 if (r < 0 || (size_t)r >= bufsiz) 38 errx(1, "path truncated: '%s%s%s'", 39 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 40 } 41 42 /* Percent-encode, see RFC3986 section 2.1. */ 43 void 44 percentencode(FILE *fp, const char *s, size_t len) 45 { 46 static char tab[] = "0123456789ABCDEF"; 47 unsigned char uc; 48 size_t i; 49 50 for (i = 0; *s && i < len; s++, i++) { 51 uc = *s; 52 /* NOTE: do not encode '/' for paths or ",-." */ 53 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') || 54 uc == '[' || uc == ']') { 55 putc('%', fp); 56 putc(tab[(uc >> 4) & 0x0f], fp); 57 putc(tab[uc & 0x0f], fp); 58 } else { 59 putc(uc, fp); 60 } 61 } 62 } 63 64 /* Escape characters below as HTML 2.0 / XML 1.0. */ 65 void 66 xmlencode(FILE *fp, const char *s, size_t len) 67 { 68 size_t i; 69 70 for (i = 0; *s && i < len; s++, i++) { 71 switch(*s) { 72 case '<': fputs("<", fp); break; 73 case '>': fputs(">", fp); break; 74 case '\'': fputs("'" , fp); break; 75 case '&': fputs("&", fp); break; 76 case '"': fputs(""", fp); break; 77 default: putc(*s, fp); 78 } 79 } 80 } 81 82 void 83 printtimeshort(FILE *fp, const git_time *intime) 84 { 85 struct tm *intm; 86 time_t t; 87 char out[32]; 88 89 t = (time_t)intime->time; 90 if (!(intm = gmtime(&t))) 91 return; 92 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm); 93 fputs(out, fp); 94 } 95 96 void 97 writeheader(FILE *fp) 98 { 99 fputs("<!DOCTYPE html>\n" 100 "<html>\n<head>\n" 101 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n" 102 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n" 103 "<title>", fp); 104 xmlencode(fp, description, strlen(description)); 105 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/svg+xml\" href=\"../%slogo.svg\" />\n", relpath); 106 fprintf(fp, "<link rel=\"alternate icon\" href=\"%sfavicon.ico\" />\n", relpath); 107 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath); 108 fputs("</head>\n<body id=\"home\">\n<h1>", fp); 109 xmlencode(fp, description, strlen(description)); 110 fputs("</h1>\n<div id=\"content\">\n" 111 "<h2 id=\"repositories\">Repositories</h2>\n" 112 "<div class=\"table-container\">\n<table id=\"index\"><thead>\n" 113 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Last commit</b></td></tr>" 114 "</thead><tbody>\n", fp); 115 } 116 117 void 118 writefooter(FILE *fp) 119 { 120 fputs("</tbody>\n</table>\n</div>\n" 121 "<h2 id=\"contribute\">Contribute</h2>\n" 122 "<p>The best way to contribute to my repositories is through e-mail, check out <a href=\"https://git-send-email.io\">git-send-email.io</a> if you don’t know how to do that. Send your patches to <a href=\"mailto:patches@oscarbenedito.com\">patches@oscarbenedito.com</a> and change the subject prefix to specify the repository you are sending the patch for. You can do that running the following command from the git repository:</p>\n" 123 "<pre><code>git config format.subjectPrefix \"PATCH <name-of-repository>\"</code></pre>\n" 124 "<p>You can also contribute on <a href=\"https://github.com/oscarbenedito\">GitHub</a> doing pull requests (all my public repositories are mirrored there, as well as <a href=\"https://git.sr.ht/~ob\">SourceHut</a>).</p>\n" 125 "</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_revwalk_next(&id, w) || 142 git_commit_lookup(&commit, repo, &id)) { 143 ret = -1; 144 goto err; 145 } 146 147 author = git_commit_author(commit); 148 149 /* strip .git suffix */ 150 if (!(stripped_name = strdup(name))) 151 err(1, "strdup"); 152 if ((p = strrchr(stripped_name, '.'))) 153 if (!strcmp(p, ".git")) 154 *p = '\0'; 155 156 fputs("<tr class=\"repo\"><td><a href=\"", fp); 157 percentencode(fp, stripped_name, strlen(stripped_name)); 158 fputs("/\">", fp); 159 xmlencode(fp, stripped_name, strlen(stripped_name)); 160 fputs("</a></td><td>", fp); 161 xmlencode(fp, description, strlen(description)); 162 fputs("</td><td>", fp); 163 if (author) 164 printtimeshort(fp, &(author->when)); 165 fputs("</td></tr>\n", fp); 166 167 git_commit_free(commit); 168 err: 169 git_revwalk_free(w); 170 free(stripped_name); 171 172 return ret; 173 } 174 175 int 176 main(int argc, char *argv[]) 177 { 178 FILE *fp; 179 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 180 const char *repodir; 181 int i, ret = 0, tmp; 182 183 if (argc < 2) { 184 fprintf(stderr, "%s [repodir...]\n", argv[0]); 185 return 1; 186 } 187 188 /* do not search outside the git repository: 189 GIT_CONFIG_LEVEL_APP is the highest level currently */ 190 git_libgit2_init(); 191 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 192 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 193 /* do not require the git repository to be owned by the current user */ 194 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 195 196 #ifdef __OpenBSD__ 197 if (pledge("stdio rpath", NULL) == -1) 198 err(1, "pledge"); 199 #endif 200 201 writeheader(stdout); 202 203 for (i = 1; i < argc; i++) { 204 if (!strcmp(argv[i], "-c")) { 205 i++; 206 if (i == argc) 207 err(1, "missing argument"); 208 repodir = argv[i]; 209 fputs("<tr class=\"cat\"><td>", stdout); 210 xmlencode(stdout, repodir, strlen(repodir)); 211 fputs("</td><td></td><td></td></tr>\n", stdout); 212 continue; 213 } 214 215 repodir = argv[i]; 216 if (!realpath(repodir, repodirabs)) 217 err(1, "realpath"); 218 219 if (git_repository_open_ext(&repo, repodir, 220 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 221 fprintf(stderr, "%s: cannot open repository\n", argv[0]); 222 ret = 1; 223 continue; 224 } 225 226 /* use directory name as name */ 227 if ((name = strrchr(repodirabs, '/'))) 228 name++; 229 else 230 name = ""; 231 232 /* read description or .git/description */ 233 joinpath(path, sizeof(path), repodir, "description"); 234 if (!(fp = fopen(path, "r"))) { 235 joinpath(path, sizeof(path), repodir, ".git/description"); 236 fp = fopen(path, "r"); 237 } 238 description[0] = '\0'; 239 if (fp) { 240 if (!fgets(description, sizeof(description), fp)) 241 description[0] = '\0'; 242 tmp = strlen(description); 243 if (tmp > 0 && description[tmp-1] == '\n') 244 description[tmp-1] = '\0'; 245 checkfileerror(fp, "description", 'r'); 246 fclose(fp); 247 } 248 249 /* read owner or .git/owner */ 250 joinpath(path, sizeof(path), repodir, "owner"); 251 if (!(fp = fopen(path, "r"))) { 252 joinpath(path, sizeof(path), repodir, ".git/owner"); 253 fp = fopen(path, "r"); 254 } 255 owner[0] = '\0'; 256 if (fp) { 257 if (!fgets(owner, sizeof(owner), fp)) 258 owner[0] = '\0'; 259 checkfileerror(fp, "owner", 'r'); 260 fclose(fp); 261 owner[strcspn(owner, "\n")] = '\0'; 262 } 263 writelog(stdout); 264 } 265 writefooter(stdout); 266 267 /* cleanup */ 268 git_repository_free(repo); 269 git_libgit2_shutdown(); 270 271 checkfileerror(stdout, "<stdout>", 'w'); 272 273 return ret; 274 }