codeview

stagit.c (39334B)

---

 #include <sys/stat.h>
 #include <sys/types.h>
 
 #include <err.h>
 #include <errno.h>
 #include <libgen.h>
 #include <limits.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
 
 #include <git2.h>
 
 #include "compat.h"
 #include "get_lang.h"
 
 #define LEN(s)    (sizeof(s)/sizeof(*s))
 
 struct deltainfo {
 	git_patch *patch;
 
 	size_t addcount;
 	size_t delcount;
 };
 
 struct commitinfo {
 	const git_oid *id;
 
 	char oid[GIT_OID_HEXSZ + 1];
 	char parentoid[GIT_OID_HEXSZ + 1];
 
 	const git_signature *author;
 	const git_signature *committer;
 	const char          *summary;
 	const char          *msg;
 
 	git_diff   *diff;
 	git_commit *commit;
 	git_commit *parent;
 	git_tree   *commit_tree;
 	git_tree   *parent_tree;
 
 	size_t addcount;
 	size_t delcount;
 	size_t filecount;
 
 	struct deltainfo **deltas;
 	size_t ndeltas;
 };
 
 /* reference and associated data for sorting */
 struct referenceinfo {
 	struct git_reference *ref;
 	struct commitinfo *ci;
 };
 
 static git_repository *repo;
 
 static const char *baseurl = ""; /* base URL to make absolute RSS/Atom URI */
 static const char *relpath = "";
 static const char *repodir;
 
 static char *name = "";
 static char *strippedname = "";
 static char description[255];
 static char cloneurl[1024];
 static char *submodules;
 static char *licensefiles[] = { "HEAD:LICENSE", "HEAD:LICENSE.md", "HEAD:COPYING" };
 static char *license;
 static char *readmefiles[] = { "HEAD:README", "HEAD:README.md" };
 static char *readme;
 static long long nlogcommits = -1; /* -1 indicates not used */
 
 /* cache */
 static git_oid lastoid;
 static char lastoidstr[GIT_OID_HEXSZ + 2]; /* id + newline + NUL byte */
 static FILE *rcachefp, *wcachefp;
 static const char *cachefile;
 
 /* Handle read or write errors for a FILE * stream */
 void
 checkfileerror(FILE *fp, const char *name, int mode)
 {
 	if (mode == 'r' && ferror(fp))
 		errx(1, "read error: %s", name);
 	else if (mode == 'w' && (fflush(fp) || ferror(fp)))
 		errx(1, "write error: %s", name);
 }
 
 void
 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
 {
 	int r;
 
 	r = snprintf(buf, bufsiz, "%s%s%s",
 		path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
 	if (r < 0 || (size_t)r >= bufsiz)
 		errx(1, "path truncated: '%s%s%s'",
 			path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
 }
 
 void
 deltainfo_free(struct deltainfo *di)
 {
 	if (!di)
 		return;
 	git_patch_free(di->patch);
 	memset(di, 0, sizeof(*di));
 	free(di);
 }
 
 int
 commitinfo_getstats(struct commitinfo *ci)
 {
 	struct deltainfo *di;
 	git_diff_options opts;
 	git_diff_find_options fopts;
 	const git_diff_delta *delta;
 	const git_diff_hunk *hunk;
 	const git_diff_line *line;
 	git_patch *patch = NULL;
 	size_t ndeltas, nhunks, nhunklines;
 	size_t i, j, k;
 
 	if (git_tree_lookup(&(ci->commit_tree), repo, git_commit_tree_id(ci->commit)))
 		goto err;
 	if (!git_commit_parent(&(ci->parent), ci->commit, 0)) {
 		if (git_tree_lookup(&(ci->parent_tree), repo, git_commit_tree_id(ci->parent))) {
 			ci->parent = NULL;
 			ci->parent_tree = NULL;
 		}
 	}
 
 	git_diff_init_options(&opts, GIT_DIFF_OPTIONS_VERSION);
 	opts.flags |= GIT_DIFF_DISABLE_PATHSPEC_MATCH |
 	              GIT_DIFF_IGNORE_SUBMODULES |
 		      GIT_DIFF_INCLUDE_TYPECHANGE;
 	if (git_diff_tree_to_tree(&(ci->diff), repo, ci->parent_tree, ci->commit_tree, &opts))
 		goto err;
 
 	if (git_diff_find_init_options(&fopts, GIT_DIFF_FIND_OPTIONS_VERSION))
 		goto err;
 	/* find renames and copies, exact matches (no heuristic) for renames. */
 	fopts.flags |= GIT_DIFF_FIND_RENAMES | GIT_DIFF_FIND_COPIES |
 	               GIT_DIFF_FIND_EXACT_MATCH_ONLY;
 	if (git_diff_find_similar(ci->diff, &fopts))
 		goto err;
 
 	ndeltas = git_diff_num_deltas(ci->diff);
 	if (ndeltas && !(ci->deltas = calloc(ndeltas, sizeof(struct deltainfo *))))
 		err(1, "calloc");
 
 	for (i = 0; i < ndeltas; i++) {
 		if (git_patch_from_diff(&patch, ci->diff, i))
 			goto err;
 
 		if (!(di = calloc(1, sizeof(struct deltainfo))))
 			err(1, "calloc");
 		di->patch = patch;
 		ci->deltas[i] = di;
 
 		delta = git_patch_get_delta(patch);
 
 		/* skip stats for binary data */
 		if (delta->flags & GIT_DIFF_FLAG_BINARY)
 			continue;
 
 		nhunks = git_patch_num_hunks(patch);
 		for (j = 0; j < nhunks; j++) {
 			if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
 				break;
 			for (k = 0; ; k++) {
 				if (git_patch_get_line_in_hunk(&line, patch, j, k))
 					break;
 				if (line->old_lineno == -1) {
 					di->addcount++;
 					ci->addcount++;
 				} else if (line->new_lineno == -1) {
 					di->delcount++;
 					ci->delcount++;
 				}
 			}
 		}
 	}
 	ci->ndeltas = i;
 	ci->filecount = i;
 
 	return 0;
 
 err:
 	git_diff_free(ci->diff);
 	ci->diff = NULL;
 	git_tree_free(ci->commit_tree);
 	ci->commit_tree = NULL;
 	git_tree_free(ci->parent_tree);
 	ci->parent_tree = NULL;
 	git_commit_free(ci->parent);
 	ci->parent = NULL;
 
 	if (ci->deltas)
 		for (i = 0; i < ci->ndeltas; i++)
 			deltainfo_free(ci->deltas[i]);
 	free(ci->deltas);
 	ci->deltas = NULL;
 	ci->ndeltas = 0;
 	ci->addcount = 0;
 	ci->delcount = 0;
 	ci->filecount = 0;
 
 	return -1;
 }
 
 void
 commitinfo_free(struct commitinfo *ci)
 {
 	size_t i;
 
 	if (!ci)
 		return;
 	if (ci->deltas)
 		for (i = 0; i < ci->ndeltas; i++)
 			deltainfo_free(ci->deltas[i]);
 
 	free(ci->deltas);
 	git_diff_free(ci->diff);
 	git_tree_free(ci->commit_tree);
 	git_tree_free(ci->parent_tree);
 	git_commit_free(ci->commit);
 	git_commit_free(ci->parent);
 	memset(ci, 0, sizeof(*ci));
 	free(ci);
 }
 
 struct commitinfo *
 commitinfo_getbyoid(const git_oid *id)
 {
 	struct commitinfo *ci;
 
 	if (!(ci = calloc(1, sizeof(struct commitinfo))))
 		err(1, "calloc");
 
 	if (git_commit_lookup(&(ci->commit), repo, id))
 		goto err;
 	ci->id = id;
 
 	git_oid_tostr(ci->oid, sizeof(ci->oid), git_commit_id(ci->commit));
 	git_oid_tostr(ci->parentoid, sizeof(ci->parentoid), git_commit_parent_id(ci->commit, 0));
 
 	ci->author = git_commit_author(ci->commit);
 	ci->committer = git_commit_committer(ci->commit);
 	ci->summary = git_commit_summary(ci->commit);
 	ci->msg = git_commit_message(ci->commit);
 
 	return ci;
 
 err:
 	commitinfo_free(ci);
 
 	return NULL;
 }
 
 int
 refs_cmp(const void *v1, const void *v2)
 {
 	const struct referenceinfo *r1 = v1, *r2 = v2;
 	time_t t1, t2;
 	int r;
 
 	if ((r = git_reference_is_tag(r1->ref) - git_reference_is_tag(r2->ref)))
 		return r;
 
 	t1 = r1->ci->author ? r1->ci->author->when.time : 0;
 	t2 = r2->ci->author ? r2->ci->author->when.time : 0;
 	if ((r = t1 > t2 ? -1 : (t1 == t2 ? 0 : 1)))
 		return r;
 
 	return strcmp(git_reference_shorthand(r1->ref),
 	              git_reference_shorthand(r2->ref));
 }
 
 int
 getrefs(struct referenceinfo **pris, size_t *prefcount)
 {
 	struct referenceinfo *ris = NULL;
 	struct commitinfo *ci = NULL;
 	git_reference_iterator *it = NULL;
 	const git_oid *id = NULL;
 	git_object *obj = NULL;
 	git_reference *dref = NULL, *r, *ref = NULL;
 	size_t i, refcount;
 
 	*pris = NULL;
 	*prefcount = 0;
 
 	if (git_reference_iterator_new(&it, repo))
 		return -1;
 
 	for (refcount = 0; !git_reference_next(&ref, it); ) {
 		if (!git_reference_is_branch(ref) && !git_reference_is_tag(ref)) {
 			git_reference_free(ref);
 			ref = NULL;
 			continue;
 		}
 
 		switch (git_reference_type(ref)) {
 		case GIT_REF_SYMBOLIC:
 			if (git_reference_resolve(&dref, ref))
 				goto err;
 			r = dref;
 			break;
 		case GIT_REF_OID:
 			r = ref;
 			break;
 		default:
 			continue;
 		}
 		if (!git_reference_target(r) ||
 		    git_reference_peel(&obj, r, GIT_OBJ_ANY))
 			goto err;
 		if (!(id = git_object_id(obj)))
 			goto err;
 		if (!(ci = commitinfo_getbyoid(id)))
 			break;
 
 		if (!(ris = reallocarray(ris, refcount + 1, sizeof(*ris))))
 			err(1, "realloc");
 		ris[refcount].ci = ci;
 		ris[refcount].ref = r;
 		refcount++;
 
 		git_object_free(obj);
 		obj = NULL;
 		git_reference_free(dref);
 		dref = NULL;
 	}
 	git_reference_iterator_free(it);
 
 	/* sort by type, date then shorthand name */
 	qsort(ris, refcount, sizeof(*ris), refs_cmp);
 
 	*pris = ris;
 	*prefcount = refcount;
 
 	return 0;
 
 err:
 	git_object_free(obj);
 	git_reference_free(dref);
 	commitinfo_free(ci);
 	for (i = 0; i < refcount; i++) {
 		commitinfo_free(ris[i].ci);
 		git_reference_free(ris[i].ref);
 	}
 	free(ris);
 
 	return -1;
 }
 
 FILE *
 efopen(const char *filename, const char *flags)
 {
 	FILE *fp;
 
 	if (!(fp = fopen(filename, flags)))
 		err(1, "fopen: '%s'", filename);
 
 	return fp;
 }
 
 /* Percent-encode, see RFC3986 section 2.1. */
 void
 percentencode(FILE *fp, const char *s, size_t len)
 {
 	static char tab[] = "0123456789ABCDEF";
 	unsigned char uc;
 	size_t i;
 
 	for (i = 0; *s && i < len; s++, i++) {
 		uc = *s;
 		/* NOTE: do not encode '/' for paths or ",-." */
 		if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') ||
 		    uc == '[' || uc == ']') {
 			putc('%', fp);
 			putc(tab[(uc >> 4) & 0x0f], fp);
 			putc(tab[uc & 0x0f], fp);
 		} else {
 			putc(uc, fp);
 		}
 	}
 }
 
 /* Escape characters below as HTML 2.0 / XML 1.0. */
 void
 xmlencode(FILE *fp, const char *s, size_t len)
 {
 	size_t i;
 
 	for (i = 0; *s && i < len; s++, i++) {
 		switch(*s) {
 		case '<':  fputs("&lt;",   fp); break;
 		case '>':  fputs("&gt;",   fp); break;
 		case '\'': fputs("&#39;",  fp); break;
 		case '&':  fputs("&amp;",  fp); break;
 		case '"':  fputs("&quot;", fp); break;
 		default:   putc(*s, fp);
 		}
 	}
 }
 
 /* Escape characters below as HTML 2.0 / XML 1.0, ignore printing '\r', '\n' */
 void
 xmlencodeline(FILE *fp, const char *s, size_t len)
 {
 	size_t i;
 
 	for (i = 0; *s && i < len; s++, i++) {
 		switch(*s) {
 		case '<':  fputs("&lt;",   fp); break;
 		case '>':  fputs("&gt;",   fp); break;
 		case '\'': fputs("&#39;",  fp); break;
 		case '&':  fputs("&amp;",  fp); break;
 		case '"':  fputs("&quot;", fp); break;
 		case '\r': break; /* ignore CR */
 		case '\n': break; /* ignore LF */
 		default:   putc(*s, fp);
 		}
 	}
 }
 
 int
 mkdirp(const char *path)
 {
 	char tmp[PATH_MAX], *p;
 
 	if (strlcpy(tmp, path, sizeof(tmp)) >= sizeof(tmp))
 		errx(1, "path truncated: '%s'", path);
 	for (p = tmp + (tmp[0] == '/'); *p; p++) {
 		if (*p != '/')
 			continue;
 		*p = '\0';
 		if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
 			return -1;
 		*p = '/';
 	}
 	if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
 		return -1;
 	return 0;
 }
 
 void
 printtimez(FILE *fp, const git_time *intime)
 {
 	struct tm *intm;
 	time_t t;
 	char out[32];
 
 	t = (time_t)intime->time;
 	if (!(intm = gmtime(&t)))
 		return;
 	strftime(out, sizeof(out), "%Y-%m-%dT%H:%M:%SZ", intm);
 	fputs(out, fp);
 }
 
 void
 printtime(FILE *fp, const git_time *intime)
 {
 	struct tm *intm;
 	time_t t;
 	char out[32];
 
 	t = (time_t)intime->time + (intime->offset * 60);
 	if (!(intm = gmtime(&t)))
 		return;
 	strftime(out, sizeof(out), "%a, %e %b %Y %H:%M:%S", intm);
 	if (intime->offset < 0)
 		fprintf(fp, "%s -%02d%02d", out,
 		            -(intime->offset) / 60, -(intime->offset) % 60);
 	else
 		fprintf(fp, "%s +%02d%02d", out,
 		            intime->offset / 60, intime->offset % 60);
 }
 
 void
 printtimeshort(FILE *fp, const git_time *intime)
 {
 	struct tm *intm;
 	time_t t;
 	char out[32];
 
 	t = (time_t)intime->time;
 	if (!(intm = gmtime(&t)))
 		return;
 	strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
 	fputs(out, fp);
 }
 
 void
 writeheader(FILE *fp, const char *title)
 {
 	fputs("<!DOCTYPE html>\n"
 		"<html lang=\"en\">\n<head>\n"
 		"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
 		"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n"
 		"<title>", fp);
 	xmlencode(fp, title, strlen(title));
 	if (title[0] && strippedname[0])
 		fputs(" - ", fp);
 	xmlencode(fp, strippedname, strlen(strippedname));
 	if (description[0])
 		fputs(" - ", fp);
 	xmlencode(fp, description, strlen(description));
 	fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
 	fputs("<link rel=\"alternate\" type=\"application/atom+xml\" title=\"", fp);
 	xmlencode(fp, name, strlen(name));
 	fprintf(fp, " Atom Feed\" href=\"%satom.xml\" />\n", relpath);
 	fputs("<link rel=\"alternate\" type=\"application/atom+xml\" title=\"", fp);
 	xmlencode(fp, name, strlen(name));
 	fprintf(fp, " Atom Feed (tags)\" href=\"%stags.xml\" />\n", relpath);
 	fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
 
 	/*
 	 * add font and script for syntax highlighting
 	 */
 
 	fputs("<link rel=\"preconnect\" href=\"https://fonts.googleapis.com\">\n", fp);
 
 	fputs("<link rel=\"preconnect\" href=\"https://fonts.gstatic.com\" crossorigin>\n", fp);
 
 	fputs("<link href=\"https://fonts.googleapis.com/css2?family=Source+Code+Pro:ital,wght@0,200..900;1,200..900&display=swap\" rel=\"stylesheet\">\n",fp);
 
 	/*
 	 * syntax highlight
 	 */
 	fputs("<script>\n"
     		"const prefersLightTheme = window.matchMedia('(prefers-color-scheme: light)');\n"
     			"if (prefersLightTheme.matches) {\n"
 				"var link = document.createElement('link');\n"
 				"link.rel = 'stylesheet';\n"
 				"link.href = 'https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/xcode.css'; // brown-paper, intellij-light.css\n"
 				"document.head.appendChild(link);\n"
 			"}\n"
 			"else {\n"
 				"var link = document.createElement('link');\n"
 				"link.rel = 'stylesheet';\n"
 				"link.href = 'https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/base16/tender.css';\n"
 				"document.head.appendChild(link);\n"
 			"}\n"
 		"</script>\n",fp);
 
 
 	fputs("<script src=\"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js\"></script>\n", fp);
 	fputs("<script src=\"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/go.min.js\"></script>\n", fp);
 	fputs("<script> hljs.highlightAll() ;</script>\n", fp);
 	
 
 	/*fix nextline code issue*/
 	fputs("<style>\n"
 		"pre code.hljs {\n"
 		"display: inline;\n"
 		"padding: 0;\n"
 		"font-family: \"Source Code Pro\", monospace;\n"
 		"font-optical-sizing: auto;\n"
 		"font-weight: 500;\n"
 		"font-style: normal;\n"
 		"}\n"
 		"code.hljs {padding: 0;}\n"
 		".hljs {background: initial;}\n"
 		"@media (prefers-color-scheme: dark) {\n"
 		".hljs-comment{color: rgb(100, 100, 100);}\n"
 		"}\n"
 	     "</style>\n",fp);
 
 
 	/*
 	 * add vim keybindings
 	 */
 //	fputs("<script src=\"https://cdnjs.cloudflare.com/ajax"
 //			"/libs/mousetrap/1.6.3/mousetrap.min.js\"></script>\n", fp);
 //	
 //	
 //	fputs("<script>\n"
 //			"Mousetrap.bind('j', function() {\n"
 //			"window.scrollBy(0, 100);\n"
 //			"return false;\n"
 //			"});\n"
 //			"Mousetrap.bind('k', function() {\n"
 //			"window.scrollBy(0, -100);\n"
 //			"return false;\n"
 //			"});\n"
 //		"</script>\n", fp);
 //
 
 	fputs("</head>\n<body>\n<table><tr><td>", fp);
 	fprintf(fp, "<a href=\"../%s\"><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></a>",
 	        relpath, relpath);
 	fputs("</td><td><h1>", fp);
 	xmlencode(fp, strippedname, strlen(strippedname));
 	fputs("</h1><span class=\"desc\">", fp);
 	xmlencode(fp, description, strlen(description));
 	fputs("</span></td></tr>", fp);
 	if (cloneurl[0]) {
 		fputs("<tr class=\"url\"><td></td><td>git clone <a href=\"", fp);
 		xmlencode(fp, cloneurl, strlen(cloneurl)); /* not percent-encoded */
 		fputs("\">", fp);
 		xmlencode(fp, cloneurl, strlen(cloneurl));
 		fputs("</a></td></tr>", fp);
 	}
 	fputs("<tr><td></td><td>\n", fp);
 	/*
 	 * more space before files, log etc.
 	 */
 	fputs("<br>\n", fp);
 	fprintf(fp, "<a href=\"%slog.html\">Log</a> | ", relpath);
 	fprintf(fp, "<a href=\"%sfiles.html\">Files</a> | ", relpath);
 	fprintf(fp, "<a href=\"%srefs.html\">Refs</a>", relpath);
 	if (submodules)
 		fprintf(fp, " | <a href=\"%sfile/%s.html\">Submodules</a>",
 		        relpath, submodules);
 	if (readme)
 		fprintf(fp, " | <a href=\"%sfile/%s.html\">README</a>",
 		        relpath, readme);
 	if (license)
 		fprintf(fp, " | <a href=\"%sfile/%s.html\">LICENSE</a>",
 		        relpath, license);
 	fputs("</td></tr></table>\n<hr/>\n<div id=\"content\">\n", fp);
 }
 
 void
 writefooter(FILE *fp)
 {
 	fputs("</div>\n</body>\n</html>\n", fp);
 }
 
 /*
  *  added parameter filename, so the <code class=?> can be determined
  */
 size_t
 writeblobhtml(FILE *fp, const git_blob *blob, const char* filename)
 {
 	size_t n = 0, i, len, prev;
 	const char *nfmt_old = "<a href=\"#l%zu\" class=\"line\" id=\"l%zu\">%7zu</a>"; //removed <code> here
 	const char *s = git_blob_rawcontent(blob);
 
 	len = git_blob_rawsize(blob);
 	fputs("<pre id=\"blob\">\n", fp);
 	
 	char code_opening[250];
 
 	char this_lang[200];
 	const char *ret = get_lang(filename);
 	if (!ret)
 		strcpy(this_lang, "plaintext");
 	else
 		strcpy(this_lang, ret);
 		
 	sprintf(code_opening, "<code class=\"language-%s\"> ", this_lang);
 	char *nfmt = (char *) malloc( strlen(nfmt_old) + strlen(code_opening) + 1);
 	strcpy(nfmt, nfmt_old);
 	strcat(nfmt, code_opening);
 
 	if (len > 0) {
 		for (i = 0, prev = 0; i < len; i++) {
 			if (s[i] != '\n')
 				continue;
 			n++;
 			fprintf(fp, nfmt, n, n, n);
 			xmlencodeline(fp, &s[prev], i - prev + 1);
 			/*
 			 * odd but maybe highlight.js inserts its own
 			 * newline, so we are not putting ours
 			 * that did'nt fix it
 			 */
 			fputs("</code>\n", fp);
 			prev = i + 1;
 		}
 		/* trailing data */
 		if ((len - prev) > 0) {
 			n++;
 			fprintf(fp, nfmt, n, n, n);
 			xmlencodeline(fp, &s[prev], len - prev);
 		}
 	}
 
 	fputs("</pre>\n", fp);
 
 	return n;
 }
 
 void
 printcommit(FILE *fp, struct commitinfo *ci)
 {
 	fprintf(fp, "<b>commit</b> <a href=\"%scommit/%s.html\">%s</a>\n",
 		relpath, ci->oid, ci->oid);
 
 	if (ci->parentoid[0])
 		fprintf(fp, "<b>parent</b> <a href=\"%scommit/%s.html\">%s</a>\n",
 			relpath, ci->parentoid, ci->parentoid);
 
 	if (ci->author) {
 		fputs("<b>Author:</b> ", fp);
 		xmlencode(fp, ci->author->name, strlen(ci->author->name));
 		fputs(" &lt;<a href=\"mailto:", fp);
 		xmlencode(fp, ci->author->email, strlen(ci->author->email)); /* not percent-encoded */
 		fputs("\">", fp);
 		xmlencode(fp, ci->author->email, strlen(ci->author->email));
 		fputs("</a>&gt;\n<b>Date:</b>   ", fp);
 		printtime(fp, &(ci->author->when));
 		putc('\n', fp);
 	}
 	if (ci->msg) {
 		putc('\n', fp);
 		xmlencode(fp, ci->msg, strlen(ci->msg));
 		putc('\n', fp);
 	}
 }
 
 void
 printshowfile(FILE *fp, struct commitinfo *ci)
 {
 	const git_diff_delta *delta;
 	const git_diff_hunk *hunk;
 	const git_diff_line *line;
 	git_patch *patch;
 	size_t nhunks, nhunklines, changed, add, del, total, i, j, k;
 	char linestr[80];
 	int c;
 
 	printcommit(fp, ci);
 
 	if (!ci->deltas)
 		return;
 
 	if (ci->filecount > 1000   ||
 	    ci->ndeltas   > 1000   ||
 	    ci->addcount  > 100000 ||
 	    ci->delcount  > 100000) {
 		fputs("Diff is too large, output suppressed.\n", fp);
 		return;
 	}
 
 	/* diff stat */
 	fputs("<b>Diffstat:</b>\n<table>", fp);
 	for (i = 0; i < ci->ndeltas; i++) {
 		delta = git_patch_get_delta(ci->deltas[i]->patch);
 
 		switch (delta->status) {
 		case GIT_DELTA_ADDED:      c = 'A'; break;
 		case GIT_DELTA_COPIED:     c = 'C'; break;
 		case GIT_DELTA_DELETED:    c = 'D'; break;
 		case GIT_DELTA_MODIFIED:   c = 'M'; break;
 		case GIT_DELTA_RENAMED:    c = 'R'; break;
 		case GIT_DELTA_TYPECHANGE: c = 'T'; break;
 		default:                   c = ' '; break;
 		}
 		if (c == ' ')
 			fprintf(fp, "<tr><td>%c", c);
 		else
 			fprintf(fp, "<tr><td class=\"%c\">%c", c, c);
 
 		fprintf(fp, "</td><td><a href=\"#h%zu\">", i);
 		xmlencode(fp, delta->old_file.path, strlen(delta->old_file.path));
 		if (strcmp(delta->old_file.path, delta->new_file.path)) {
 			fputs(" -&gt; ", fp);
 			xmlencode(fp, delta->new_file.path, strlen(delta->new_file.path));
 		}
 
 		add = ci->deltas[i]->addcount;
 		del = ci->deltas[i]->delcount;
 		changed = add + del;
 		total = sizeof(linestr) - 2;
 		if (changed > total) {
 			if (add)
 				add = ((float)total / changed * add) + 1;
 			if (del)
 				del = ((float)total / changed * del) + 1;
 		}
 		memset(&linestr, '+', add);
 		memset(&linestr[add], '-', del);
 
 		fprintf(fp, "</a></td><td> | </td><td class=\"num\">%zu</td><td><span class=\"i\">",
 		        ci->deltas[i]->addcount + ci->deltas[i]->delcount);
 		fwrite(&linestr, 1, add, fp);
 		fputs("</span><span class=\"d\">", fp);
 		fwrite(&linestr[add], 1, del, fp);
 		fputs("</span></td></tr>\n", fp);
 	}
 	fprintf(fp, "</table></pre><pre>%zu file%s changed, %zu insertion%s(+), %zu deletion%s(-)\n",
 		ci->filecount, ci->filecount == 1 ? "" : "s",
 	        ci->addcount,  ci->addcount  == 1 ? "" : "s",
 	        ci->delcount,  ci->delcount  == 1 ? "" : "s");
 
 	fputs("<hr/>", fp);
 
 	for (i = 0; i < ci->ndeltas; i++) {
 		patch = ci->deltas[i]->patch;
 		delta = git_patch_get_delta(patch);
 		fprintf(fp, "<b>diff --git a/<a id=\"h%zu\" href=\"%sfile/", i, relpath);
 		percentencode(fp, delta->old_file.path, strlen(delta->old_file.path));
 		fputs(".html\">", fp);
 		xmlencode(fp, delta->old_file.path, strlen(delta->old_file.path));
 		fprintf(fp, "</a> b/<a href=\"%sfile/", relpath);
 		percentencode(fp, delta->new_file.path, strlen(delta->new_file.path));
 		fprintf(fp, ".html\">");
 		xmlencode(fp, delta->new_file.path, strlen(delta->new_file.path));
 		fprintf(fp, "</a></b>\n");
 
 		/* check binary data */
 		if (delta->flags & GIT_DIFF_FLAG_BINARY) {
 			fputs("Binary files differ.\n", fp);
 			continue;
 		}
 
 		nhunks = git_patch_num_hunks(patch);
 		for (j = 0; j < nhunks; j++) {
 			if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
 				break;
 
 			fprintf(fp, "<a href=\"#h%zu-%zu\" id=\"h%zu-%zu\" class=\"h\">", i, j, i, j);
 			xmlencode(fp, hunk->header, hunk->header_len);
 			fputs("</a>", fp);
 
 			for (k = 0; ; k++) {
 				if (git_patch_get_line_in_hunk(&line, patch, j, k))
 					break;
 				if (line->old_lineno == -1)
 					fprintf(fp, "<a href=\"#h%zu-%zu-%zu\" id=\"h%zu-%zu-%zu\" class=\"i\">+",
 						i, j, k, i, j, k);
 				else if (line->new_lineno == -1)
 					fprintf(fp, "<a href=\"#h%zu-%zu-%zu\" id=\"h%zu-%zu-%zu\" class=\"d\">-",
 						i, j, k, i, j, k);
 				else
 					putc(' ', fp);
 				xmlencodeline(fp, line->content, line->content_len);
 				putc('\n', fp);
 				if (line->old_lineno == -1 || line->new_lineno == -1)
 					fputs("</a>", fp);
 			}
 		}
 	}
 }
 
 void
 writelogline(FILE *fp, struct commitinfo *ci)
 {
 	fputs("<tr><td>", fp);
 	if (ci->author)
 		printtimeshort(fp, &(ci->author->when));
 	fputs("</td><td>", fp);
 	if (ci->summary) {
 		fprintf(fp, "<a href=\"%scommit/%s.html\">", relpath, ci->oid);
 		xmlencode(fp, ci->summary, strlen(ci->summary));
 		fputs("</a>", fp);
 	}
 	fputs("</td><td>", fp);
 	if (ci->author)
 		xmlencode(fp, ci->author->name, strlen(ci->author->name));
 	fputs("</td><td class=\"num\" align=\"right\">", fp);
 	fprintf(fp, "%zu", ci->filecount);
 	fputs("</td><td class=\"num\" align=\"right\">", fp);
 	fprintf(fp, "+%zu", ci->addcount);
 	fputs("</td><td class=\"num\" align=\"right\">", fp);
 	fprintf(fp, "-%zu", ci->delcount);
 	fputs("</td></tr>\n", fp);
 }
 
 int
 writelog(FILE *fp, const git_oid *oid)
 {
 	struct commitinfo *ci;
 	git_revwalk *w = NULL;
 	git_oid id;
 	char path[PATH_MAX], oidstr[GIT_OID_HEXSZ + 1];
 	FILE *fpfile;
 	size_t remcommits = 0;
 	int r;
 
 	git_revwalk_new(&w, repo);
 	git_revwalk_push(w, oid);
 
 	while (!git_revwalk_next(&id, w)) {
 		relpath = "";
 
 		if (cachefile && !memcmp(&id, &lastoid, sizeof(id)))
 			break;
 
 		git_oid_tostr(oidstr, sizeof(oidstr), &id);
 		r = snprintf(path, sizeof(path), "commit/%s.html", oidstr);
 		if (r < 0 || (size_t)r >= sizeof(path))
 			errx(1, "path truncated: 'commit/%s.html'", oidstr);
 		r = access(path, F_OK);
 
 		/* optimization: if there are no log lines to write and
 		   the commit file already exists: skip the diffstat */
 		if (!nlogcommits) {
 			remcommits++;
 			if (!r)
 				continue;
 		}
 
 		if (!(ci = commitinfo_getbyoid(&id)))
 			break;
 		/* diffstat: for stagit HTML required for the log.html line */
 		if (commitinfo_getstats(ci) == -1)
 			goto err;
 
 		if (nlogcommits != 0) {
 			writelogline(fp, ci);
 			if (nlogcommits > 0)
 				nlogcommits--;
 		}
 
 		if (cachefile)
 			writelogline(wcachefp, ci);
 
 		/* check if file exists if so skip it */
 		if (r) {
 			relpath = "../";
 			fpfile = efopen(path, "w");
 			writeheader(fpfile, ci->summary);
 			fputs("<pre>", fpfile);
 			printshowfile(fpfile, ci);
 			fputs("</pre>\n", fpfile);
 			writefooter(fpfile);
 			checkfileerror(fpfile, path, 'w');
 			fclose(fpfile);
 		}
 err:
 		commitinfo_free(ci);
 	}
 	git_revwalk_free(w);
 
 	if (nlogcommits == 0 && remcommits != 0) {
 		fprintf(fp, "<tr><td></td><td colspan=\"5\">"
 		        "%zu more commits remaining, fetch the repository"
 		        "</td></tr>\n", remcommits);
 	}
 
 	relpath = "";
 
 	return 0;
 }
 
 void
 printcommitatom(FILE *fp, struct commitinfo *ci, const char *tag)
 {
 	fputs("<entry>\n", fp);
 
 	fprintf(fp, "<id>%s</id>\n", ci->oid);
 	if (ci->author) {
 		fputs("<published>", fp);
 		printtimez(fp, &(ci->author->when));
 		fputs("</published>\n", fp);
 	}
 	if (ci->committer) {
 		fputs("<updated>", fp);
 		printtimez(fp, &(ci->committer->when));
 		fputs("</updated>\n", fp);
 	}
 	if (ci->summary) {
 		fputs("<title>", fp);
 		if (tag && tag[0]) {
 			fputs("[", fp);
 			xmlencode(fp, tag, strlen(tag));
 			fputs("] ", fp);
 		}
 		xmlencode(fp, ci->summary, strlen(ci->summary));
 		fputs("</title>\n", fp);
 	}
 	fprintf(fp, "<link rel=\"alternate\" type=\"text/html\" href=\"%scommit/%s.html\" />\n",
 	        baseurl, ci->oid);
 
 	if (ci->author) {
 		fputs("<author>\n<name>", fp);
 		xmlencode(fp, ci->author->name, strlen(ci->author->name));
 		fputs("</name>\n<email>", fp);
 		xmlencode(fp, ci->author->email, strlen(ci->author->email));
 		fputs("</email>\n</author>\n", fp);
 	}
 
 	fputs("<content>", fp);
 	fprintf(fp, "commit %s\n", ci->oid);
 	if (ci->parentoid[0])
 		fprintf(fp, "parent %s\n", ci->parentoid);
 	if (ci->author) {
 		fputs("Author: ", fp);
 		xmlencode(fp, ci->author->name, strlen(ci->author->name));
 		fputs(" &lt;", fp);
 		xmlencode(fp, ci->author->email, strlen(ci->author->email));
 		fputs("&gt;\nDate:   ", fp);
 		printtime(fp, &(ci->author->when));
 		putc('\n', fp);
 	}
 	if (ci->msg) {
 		putc('\n', fp);
 		xmlencode(fp, ci->msg, strlen(ci->msg));
 	}
 	fputs("\n</content>\n</entry>\n", fp);
 }
 
 int
 writeatom(FILE *fp, int all)
 {
 	struct referenceinfo *ris = NULL;
 	size_t refcount = 0;
 	struct commitinfo *ci;
 	git_revwalk *w = NULL;
 	git_oid id;
 	size_t i, m = 100; /* last 'm' commits */
 
 	fputs("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 	      "<feed xmlns=\"http://www.w3.org/2005/Atom\">\n<title>", fp);
 	xmlencode(fp, strippedname, strlen(strippedname));
 	fputs(", branch HEAD</title>\n<subtitle>", fp);
 	xmlencode(fp, description, strlen(description));
 	fputs("</subtitle>\n", fp);
 
 	/* all commits or only tags? */
 	if (all) {
 		git_revwalk_new(&w, repo);
 		git_revwalk_push_head(w);
 		for (i = 0; i < m && !git_revwalk_next(&id, w); i++) {
 			if (!(ci = commitinfo_getbyoid(&id)))
 				break;
 			printcommitatom(fp, ci, "");
 			commitinfo_free(ci);
 		}
 		git_revwalk_free(w);
 	} else if (getrefs(&ris, &refcount) != -1) {
 		/* references: tags */
 		for (i = 0; i < refcount; i++) {
 			if (git_reference_is_tag(ris[i].ref))
 				printcommitatom(fp, ris[i].ci,
 				                git_reference_shorthand(ris[i].ref));
 
 			commitinfo_free(ris[i].ci);
 			git_reference_free(ris[i].ref);
 		}
 		free(ris);
 	}
 
 	fputs("</feed>\n", fp);
 
 	return 0;
 }
 
 size_t
 writeblob(git_object *obj, const char *fpath, const char *filename, size_t filesize)
 {
 	char tmp[PATH_MAX] = "", *d;
 	const char *p;
 	size_t lc = 0;
 	FILE *fp;
 
 	if (strlcpy(tmp, fpath, sizeof(tmp)) >= sizeof(tmp))
 		errx(1, "path truncated: '%s'", fpath);
 	if (!(d = dirname(tmp)))
 		err(1, "dirname");
 	if (mkdirp(d))
 		return -1;
 
 	for (p = fpath, tmp[0] = '\0'; *p; p++) {
 		if (*p == '/' && strlcat(tmp, "../", sizeof(tmp)) >= sizeof(tmp))
 			errx(1, "path truncated: '../%s'", tmp);
 	}
 	relpath = tmp;
 
 	fp = efopen(fpath, "w");
 	writeheader(fp, filename);
 	fputs("<p> ", fp);
 	xmlencode(fp, filename, strlen(filename));
 	fprintf(fp, " (%zuB)", filesize);
 	fputs("</p><hr/>", fp);
 
 	if (git_blob_is_binary((git_blob *)obj))
 		fputs("<p>Binary file.</p>\n", fp);
 	else
 		// passing parameter to be used by the code
 		lc = writeblobhtml(fp, (git_blob *)obj, filename);
 
 	writefooter(fp);
 	checkfileerror(fp, fpath, 'w');
 	fclose(fp);
 
 	relpath = "";
 
 	return lc;
 }
 
 const char *
 filemode(git_filemode_t m)
 {
 	static char mode[11];
 
 	memset(mode, '-', sizeof(mode) - 1);
 	mode[10] = '\0';
 
 	if (S_ISREG(m))
 		mode[0] = '-';
 	else if (S_ISBLK(m))
 		mode[0] = 'b';
 	else if (S_ISCHR(m))
 		mode[0] = 'c';
 	else if (S_ISDIR(m))
 		mode[0] = 'd';
 	else if (S_ISFIFO(m))
 		mode[0] = 'p';
 	else if (S_ISLNK(m))
 		mode[0] = 'l';
 	else if (S_ISSOCK(m))
 		mode[0] = 's';
 	else
 		mode[0] = '?';
 
 	if (m & S_IRUSR) mode[1] = 'r';
 	if (m & S_IWUSR) mode[2] = 'w';
 	if (m & S_IXUSR) mode[3] = 'x';
 	if (m & S_IRGRP) mode[4] = 'r';
 	if (m & S_IWGRP) mode[5] = 'w';
 	if (m & S_IXGRP) mode[6] = 'x';
 	if (m & S_IROTH) mode[7] = 'r';
 	if (m & S_IWOTH) mode[8] = 'w';
 	if (m & S_IXOTH) mode[9] = 'x';
 
 	if (m & S_ISUID) mode[3] = (mode[3] == 'x') ? 's' : 'S';
 	if (m & S_ISGID) mode[6] = (mode[6] == 'x') ? 's' : 'S';
 	if (m & S_ISVTX) mode[9] = (mode[9] == 'x') ? 't' : 'T';
 
 	return mode;
 }
 
 int
 writefilestree(FILE *fp, git_tree *tree, const char *path)
 {
 	const git_tree_entry *entry = NULL;
 	git_object *obj = NULL;
 	const char *entryname;
 	char filepath[PATH_MAX], entrypath[PATH_MAX], oid[8];
 	size_t count, i, lc, filesize;
 	int r, ret;
 
 	count = git_tree_entrycount(tree);
 	for (i = 0; i < count; i++) {
 		if (!(entry = git_tree_entry_byindex(tree, i)) ||
 		    !(entryname = git_tree_entry_name(entry)))
 			return -1;
 		joinpath(entrypath, sizeof(entrypath), path, entryname);
 
 		r = snprintf(filepath, sizeof(filepath), "file/%s.html",
 		         entrypath);
 		if (r < 0 || (size_t)r >= sizeof(filepath))
 			errx(1, "path truncated: 'file/%s.html'", entrypath);
 
 		if (!git_tree_entry_to_object(&obj, repo, entry)) {
 			switch (git_object_type(obj)) {
 			case GIT_OBJ_BLOB:
 				break;
 			case GIT_OBJ_TREE:
 				/* NOTE: recurses */
 				ret = writefilestree(fp, (git_tree *)obj,
 				                     entrypath);
 				git_object_free(obj);
 				if (ret)
 					return ret;
 				continue;
 			default:
 				git_object_free(obj);
 				continue;
 			}
 
 			filesize = git_blob_rawsize((git_blob *)obj);
 			lc = writeblob(obj, filepath, entryname, filesize);
 
 			fputs("<tr><td>", fp);
 			fputs(filemode(git_tree_entry_filemode(entry)), fp);
 			fprintf(fp, "</td><td><a href=\"%s", relpath);
 			percentencode(fp, filepath, strlen(filepath));
 			fputs("\">", fp);
 			xmlencode(fp, entrypath, strlen(entrypath));
 			fputs("</a></td><td class=\"num\" align=\"right\">", fp);
 			if (lc > 0)
 				fprintf(fp, "%zuL", lc);
 			else
 				fprintf(fp, "%zuB", filesize);
 			fputs("</td></tr>\n", fp);
 			git_object_free(obj);
 		} else if (git_tree_entry_type(entry) == GIT_OBJ_COMMIT) {
 			/* commit object in tree is a submodule */
 			fprintf(fp, "<tr><td>m---------</td><td><a href=\"%sfile/.gitmodules.html\">",
 				relpath);
 			xmlencode(fp, entrypath, strlen(entrypath));
 			fputs("</a> @ ", fp);
 			git_oid_tostr(oid, sizeof(oid), git_tree_entry_id(entry));
 			xmlencode(fp, oid, strlen(oid));
 			fputs("</td><td class=\"num\" align=\"right\"></td></tr>\n", fp);
 		}
 	}
 
 	return 0;
 }
 
 int
 writefiles(FILE *fp, const git_oid *id)
 {
 	git_tree *tree = NULL;
 	git_commit *commit = NULL;
 	int ret = -1;
 
 	fputs("<table id=\"files\"><thead>\n<tr>"
 	      "<td><b>Mode</b></td><td><b>Name</b></td>"
 	      "<td class=\"num\" align=\"right\"><b>Size</b></td>"
 	      "</tr>\n</thead><tbody>\n", fp);
 
 	if (!git_commit_lookup(&commit, repo, id) &&
 	    !git_commit_tree(&tree, commit))
 		ret = writefilestree(fp, tree, "");
 
 	fputs("</tbody></table>", fp);
 
 	git_commit_free(commit);
 	git_tree_free(tree);
 
 	return ret;
 }
 
 int
 writerefs(FILE *fp)
 {
 	struct referenceinfo *ris = NULL;
 	struct commitinfo *ci;
 	size_t count, i, j, refcount;
 	const char *titles[] = { "Branches", "Tags" };
 	const char *ids[] = { "branches", "tags" };
 	const char *s;
 
 	if (getrefs(&ris, &refcount) == -1)
 		return -1;
 
 	for (i = 0, j = 0, count = 0; i < refcount; i++) {
 		if (j == 0 && git_reference_is_tag(ris[i].ref)) {
 			if (count)
 				fputs("</tbody></table><br/>\n", fp);
 			count = 0;
 			j = 1;
 		}
 
 		/* print header if it has an entry (first). */
 		if (++count == 1) {
 			fprintf(fp, "<h2>%s</h2><table id=\"%s\">"
 		                "<thead>\n<tr><td><b>Name</b></td>"
 			        "<td><b>Last commit date</b></td>"
 			        "<td><b>Author</b></td>\n</tr>\n"
 			        "</thead><tbody>\n",
 			         titles[j], ids[j]);
 		}
 
 		ci = ris[i].ci;
 		s = git_reference_shorthand(ris[i].ref);
 
 		fputs("<tr><td>", fp);
 		xmlencode(fp, s, strlen(s));
 		fputs("</td><td>", fp);
 		if (ci->author)
 			printtimeshort(fp, &(ci->author->when));
 		fputs("</td><td>", fp);
 		if (ci->author)
 			xmlencode(fp, ci->author->name, strlen(ci->author->name));
 		fputs("</td></tr>\n", fp);
 	}
 	/* table footer */
 	if (count)
 		fputs("</tbody></table><br/>\n", fp);
 
 	for (i = 0; i < refcount; i++) {
 		commitinfo_free(ris[i].ci);
 		git_reference_free(ris[i].ref);
 	}
 	free(ris);
 
 	return 0;
 }
 
 void
 usage(char *argv0)
 {
 	fprintf(stderr, "usage: %s [-c cachefile | -l commits] "
 	        "[-u baseurl] repodir\n", argv0);
 	exit(1);
 }
 
 int
 main(int argc, char *argv[])
 {
 	git_object *obj = NULL;
 	const git_oid *head = NULL;
 	mode_t mask;
 	FILE *fp, *fpread;
 	char path[PATH_MAX], repodirabs[PATH_MAX + 1], *p;
 	char tmppath[64] = "cache.XXXXXXXXXXXX", buf[BUFSIZ];
 	size_t n;
 	int i, fd;
 
 	for (i = 1; i < argc; i++) {
 		if (argv[i][0] != '-') {
 			if (repodir)
 				usage(argv[0]);
 			repodir = argv[i];
 		} else if (argv[i][1] == 'c') {
 			if (nlogcommits > 0 || i + 1 >= argc)
 				usage(argv[0]);
 			cachefile = argv[++i];
 		} else if (argv[i][1] == 'l') {
 			if (cachefile || i + 1 >= argc)
 				usage(argv[0]);
 			errno = 0;
 			nlogcommits = strtoll(argv[++i], &p, 10);
 			if (argv[i][0] == '\0' || *p != '\0' ||
 			    nlogcommits <= 0 || errno)
 				usage(argv[0]);
 		} else if (argv[i][1] == 'u') {
 			if (i + 1 >= argc)
 				usage(argv[0]);
 			baseurl = argv[++i];
 		}
 	}
 	if (!repodir)
 		usage(argv[0]);
 
 	if (!realpath(repodir, repodirabs))
 		err(1, "realpath");
 
 	/* do not search outside the git repository:
 	   GIT_CONFIG_LEVEL_APP is the highest level currently */
 	git_libgit2_init();
 	for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++)
 		git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, "");
 	/* do not require the git repository to be owned by the current user */
 	git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0);
 
 #ifdef __OpenBSD__
 	if (unveil(repodir, "r") == -1)
 		err(1, "unveil: %s", repodir);
 	if (unveil(".", "rwc") == -1)
 		err(1, "unveil: .");
 	if (cachefile && unveil(cachefile, "rwc") == -1)
 		err(1, "unveil: %s", cachefile);
 
 	if (cachefile) {
 		if (pledge("stdio rpath wpath cpath fattr", NULL) == -1)
 			err(1, "pledge");
 	} else {
 		if (pledge("stdio rpath wpath cpath", NULL) == -1)
 			err(1, "pledge");
 	}
 #endif
 
 	if (git_repository_open_ext(&repo, repodir,
 		GIT_REPOSITORY_OPEN_NO_SEARCH, NULL) < 0) {
 		fprintf(stderr, "%s: cannot open repository\n", argv[0]);
 		return 1;
 	}
 
 	/* find HEAD */
 	if (!git_revparse_single(&obj, repo, "HEAD"))
 		head = git_object_id(obj);
 	git_object_free(obj);
 
 	/* use directory name as name */
 	if ((name = strrchr(repodirabs, '/')))
 		name++;
 	else
 		name = "";
 
 	/* strip .git suffix */
 	if (!(strippedname = strdup(name)))
 		err(1, "strdup");
 	if ((p = strrchr(strippedname, '.')))
 		if (!strcmp(p, ".git"))
 			*p = '\0';
 
 	/* read description or .git/description */
 	joinpath(path, sizeof(path), repodir, "description");
 	if (!(fpread = fopen(path, "r"))) {
 		joinpath(path, sizeof(path), repodir, ".git/description");
 		fpread = fopen(path, "r");
 	}
 	if (fpread) {
 		if (!fgets(description, sizeof(description), fpread))
 			description[0] = '\0';
 		checkfileerror(fpread, path, 'r');
 		fclose(fpread);
 	}
 
 	/* read url or .git/url */
 	joinpath(path, sizeof(path), repodir, "url");
 	if (!(fpread = fopen(path, "r"))) {
 		joinpath(path, sizeof(path), repodir, ".git/url");
 		fpread = fopen(path, "r");
 	}
 	if (fpread) {
 		if (!fgets(cloneurl, sizeof(cloneurl), fpread))
 			cloneurl[0] = '\0';
 		checkfileerror(fpread, path, 'r');
 		fclose(fpread);
 		cloneurl[strcspn(cloneurl, "\n")] = '\0';
 	}
 
 	/* check LICENSE */
 	for (i = 0; i < LEN(licensefiles) && !license; i++) {
 		if (!git_revparse_single(&obj, repo, licensefiles[i]) &&
 		    git_object_type(obj) == GIT_OBJ_BLOB)
 			license = licensefiles[i] + strlen("HEAD:");
 		git_object_free(obj);
 	}
 
 	/* check README */
 	for (i = 0; i < LEN(readmefiles) && !readme; i++) {
 		if (!git_revparse_single(&obj, repo, readmefiles[i]) &&
 		    git_object_type(obj) == GIT_OBJ_BLOB)
 			readme = readmefiles[i] + strlen("HEAD:");
 		git_object_free(obj);
 	}
 
 	if (!git_revparse_single(&obj, repo, "HEAD:.gitmodules") &&
 	    git_object_type(obj) == GIT_OBJ_BLOB)
 		submodules = ".gitmodules";
 	git_object_free(obj);
 
 	/* log for HEAD */
 	fp = efopen("log.html", "w");
 	relpath = "";
 	mkdir("commit", S_IRWXU | S_IRWXG | S_IRWXO);
 	writeheader(fp, "Log");
 	fputs("<table id=\"log\"><thead>\n<tr><td><b>Date</b></td>"
 	      "<td><b>Commit message</b></td>"
 	      "<td><b>Author</b></td><td class=\"num\" align=\"right\"><b>Files</b></td>"
 	      "<td class=\"num\" align=\"right\"><b>+</b></td>"
 	      "<td class=\"num\" align=\"right\"><b>-</b></td></tr>\n</thead><tbody>\n", fp);
 
 	if (cachefile && head) {
 		/* read from cache file (does not need to exist) */
 		if ((rcachefp = fopen(cachefile, "r"))) {
 			if (!fgets(lastoidstr, sizeof(lastoidstr), rcachefp))
 				errx(1, "%s: no object id", cachefile);
 			if (git_oid_fromstr(&lastoid, lastoidstr))
 				errx(1, "%s: invalid object id", cachefile);
 		}
 
 		/* write log to (temporary) cache */
 		if ((fd = mkstemp(tmppath)) == -1)
 			err(1, "mkstemp");
 		if (!(wcachefp = fdopen(fd, "w")))
 			err(1, "fdopen: '%s'", tmppath);
 		/* write last commit id (HEAD) */
 		git_oid_tostr(buf, sizeof(buf), head);
 		fprintf(wcachefp, "%s\n", buf);
 
 		writelog(fp, head);
 
 		if (rcachefp) {
 			/* append previous log to log.html and the new cache */
 			while (!feof(rcachefp)) {
 				n = fread(buf, 1, sizeof(buf), rcachefp);
 				if (ferror(rcachefp))
 					break;
 				if (fwrite(buf, 1, n, fp) != n ||
 				    fwrite(buf, 1, n, wcachefp) != n)
 					    break;
 			}
 			checkfileerror(rcachefp, cachefile, 'r');
 			fclose(rcachefp);
 		}
 		checkfileerror(wcachefp, tmppath, 'w');
 		fclose(wcachefp);
 	} else {
 		if (head)
 			writelog(fp, head);
 	}
 
 	fputs("</tbody></table>", fp);
 	writefooter(fp);
 	checkfileerror(fp, "log.html", 'w');
 	fclose(fp);
 
 	/* files for HEAD */
 	fp = efopen("files.html", "w");
 	writeheader(fp, "Files");
 	if (head)
 		writefiles(fp, head);
 	writefooter(fp);
 	checkfileerror(fp, "files.html", 'w');
 	fclose(fp);
 
 	/* summary page with branches and tags */
 	fp = efopen("refs.html", "w");
 	writeheader(fp, "Refs");
 	writerefs(fp);
 	writefooter(fp);
 	checkfileerror(fp, "refs.html", 'w');
 	fclose(fp);
 
 	/* Atom feed */
 	fp = efopen("atom.xml", "w");
 	writeatom(fp, 1);
 	checkfileerror(fp, "atom.xml", 'w');
 	fclose(fp);
 
 	/* Atom feed for tags / releases */
 	fp = efopen("tags.xml", "w");
 	writeatom(fp, 0);
 	checkfileerror(fp, "tags.xml", 'w');
 	fclose(fp);
 
 	/* rename new cache file on success */
 	if (cachefile && head) {
 		if (rename(tmppath, cachefile))
 			err(1, "rename: '%s' to '%s'", tmppath, cachefile);
 		umask((mask = umask(0)));
 		if (chmod(cachefile,
 		    (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) & ~mask))
 			err(1, "chmod: '%s'", cachefile);
 	}
 
 	/* cleanup */
 	git_repository_free(repo);
 	git_libgit2_shutdown();
 
 	return 0;
 }