259 lines
6.1 KiB
C
259 lines
6.1 KiB
C
#include <err.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <git2.h>
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static git_repository *repo;
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static const char *relpath = "";
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static char description[255] = "Repositories";
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static char *name = "";
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static char owner[255];
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/* Handle read or write errors for a FILE * stream */
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void
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checkfileerror(FILE *fp, const char *name, int mode)
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{
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if (mode == 'r' && ferror(fp))
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errx(1, "read error: %s", name);
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else if (mode == 'w' && (fflush(fp) || ferror(fp)))
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errx(1, "write error: %s", name);
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}
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void
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joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
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{
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int r;
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r = snprintf(buf, bufsiz, "%s%s%s",
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path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
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if (r < 0 || (size_t)r >= bufsiz)
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errx(1, "path truncated: '%s%s%s'",
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path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
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}
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/* Percent-encode, see RFC3986 section 2.1. */
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void
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percentencode(FILE *fp, const char *s, size_t len)
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{
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static char tab[] = "0123456789ABCDEF";
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unsigned char uc;
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size_t i;
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for (i = 0; *s && i < len; s++, i++) {
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uc = *s;
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/* NOTE: do not encode '/' for paths or ",-." */
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if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') ||
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uc == '[' || uc == ']') {
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putc('%', fp);
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putc(tab[(uc >> 4) & 0x0f], fp);
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putc(tab[uc & 0x0f], fp);
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} else {
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putc(uc, fp);
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}
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}
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}
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/* Escape characters below as HTML 2.0 / XML 1.0. */
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void
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xmlencode(FILE *fp, const char *s, size_t len)
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{
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size_t i;
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for (i = 0; *s && i < len; s++, i++) {
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switch(*s) {
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case '<': fputs("<", fp); break;
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case '>': fputs(">", fp); break;
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case '\'': fputs("'" , fp); break;
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case '&': fputs("&", fp); break;
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case '"': fputs(""", fp); break;
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default: putc(*s, fp);
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}
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}
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}
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void
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printtimeshort(FILE *fp, const git_time *intime)
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{
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struct tm *intm;
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time_t t;
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char out[32];
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t = (time_t)intime->time;
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if (!(intm = gmtime(&t)))
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return;
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strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
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fputs(out, fp);
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}
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void
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writeheader(FILE *fp)
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{
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fputs("<!DOCTYPE html>\n"
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"<html>\n<head>\n"
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"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
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"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n"
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"<title>", fp);
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xmlencode(fp, description, strlen(description));
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fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
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fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
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fputs("</head>\n<body>\n", fp);
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fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
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"<td><span class=\"desc\">", relpath);
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xmlencode(fp, description, strlen(description));
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fputs("</span></td></tr><tr><td></td><td>\n"
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"</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
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"<table id=\"index\"><thead>\n"
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"<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>"
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"<td><b>Last commit</b></td></tr>"
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"</thead><tbody>\n", fp);
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}
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void
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writefooter(FILE *fp)
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{
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fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
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}
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int
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writelog(FILE *fp)
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{
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git_commit *commit = NULL;
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const git_signature *author;
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git_revwalk *w = NULL;
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git_oid id;
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char *stripped_name = NULL, *p;
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int ret = 0;
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git_revwalk_new(&w, repo);
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git_revwalk_push_head(w);
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if (git_revwalk_next(&id, w) ||
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git_commit_lookup(&commit, repo, &id)) {
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ret = -1;
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goto err;
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}
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author = git_commit_author(commit);
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/* strip .git suffix */
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if (!(stripped_name = strdup(name)))
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err(1, "strdup");
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if ((p = strrchr(stripped_name, '.')))
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if (!strcmp(p, ".git"))
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*p = '\0';
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fputs("<tr><td><a href=\"", fp);
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percentencode(fp, stripped_name, strlen(stripped_name));
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fputs("/log.html\">", fp);
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xmlencode(fp, stripped_name, strlen(stripped_name));
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fputs("</a></td><td>", fp);
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xmlencode(fp, description, strlen(description));
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fputs("</td><td>", fp);
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xmlencode(fp, owner, strlen(owner));
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fputs("</td><td>", fp);
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if (author)
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printtimeshort(fp, &(author->when));
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fputs("</td></tr>", fp);
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git_commit_free(commit);
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err:
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git_revwalk_free(w);
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free(stripped_name);
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return ret;
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}
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int
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main(int argc, char *argv[])
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{
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FILE *fp;
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char path[PATH_MAX], repodirabs[PATH_MAX + 1];
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const char *repodir;
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int i, ret = 0;
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if (argc < 2) {
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fprintf(stderr, "%s [repodir...]\n", argv[0]);
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return 1;
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}
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/* do not search outside the git repository:
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GIT_CONFIG_LEVEL_APP is the highest level currently */
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git_libgit2_init();
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for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++)
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git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, "");
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/* do not require the git repository to be owned by the current user */
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git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0);
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#ifdef __OpenBSD__
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if (pledge("stdio rpath", NULL) == -1)
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err(1, "pledge");
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#endif
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writeheader(stdout);
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for (i = 1; i < argc; i++) {
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repodir = argv[i];
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if (!realpath(repodir, repodirabs))
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err(1, "realpath");
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if (git_repository_open_ext(&repo, repodir,
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GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
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fprintf(stderr, "%s: cannot open repository\n", argv[0]);
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ret = 1;
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continue;
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}
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/* use directory name as name */
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if ((name = strrchr(repodirabs, '/')))
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name++;
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else
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name = "";
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/* read description or .git/description */
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joinpath(path, sizeof(path), repodir, "description");
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if (!(fp = fopen(path, "r"))) {
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joinpath(path, sizeof(path), repodir, ".git/description");
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fp = fopen(path, "r");
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}
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description[0] = '\0';
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if (fp) {
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if (!fgets(description, sizeof(description), fp))
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description[0] = '\0';
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checkfileerror(fp, "description", 'r');
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fclose(fp);
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}
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/* read owner or .git/owner */
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joinpath(path, sizeof(path), repodir, "owner");
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if (!(fp = fopen(path, "r"))) {
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joinpath(path, sizeof(path), repodir, ".git/owner");
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fp = fopen(path, "r");
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}
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owner[0] = '\0';
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if (fp) {
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if (!fgets(owner, sizeof(owner), fp))
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owner[0] = '\0';
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checkfileerror(fp, "owner", 'r');
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fclose(fp);
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owner[strcspn(owner, "\n")] = '\0';
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}
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writelog(stdout);
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}
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writefooter(stdout);
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/* cleanup */
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git_repository_free(repo);
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git_libgit2_shutdown();
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checkfileerror(stdout, "<stdout>", 'w');
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return ret;
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}
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