stagit

diff --git a/Makefile b/Makefile
@@ -0,0 +1,110 @@
+.POSIX:
+
+NAME = stagit
+VERSION = 1.2
+
+# paths
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/man
+DOCPREFIX = ${PREFIX}/share/doc/${NAME}
+
+LIB_INC = -I/usr/local/include
+LIB_LIB = -L/usr/local/lib -lgit2 -lmd4c-html
+
+# use system flags.
+STAGIT_CFLAGS = ${LIB_INC} ${CFLAGS}
+STAGIT_LDFLAGS = ${LIB_LIB} ${LDFLAGS}
+STAGIT_CPPFLAGS = -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_BSD_SOURCE
+
+# Uncomment to enable workaround for older libgit2 which don't support this
+# option. This workaround will be removed in the future *pinky promise*.
+#STAGIT_CFLAGS += -DGIT_OPT_SET_OWNER_VALIDATION=-1
+
+SRC = \
+	stagit.c\
+	stagit-index.c
+COMPATSRC = \
+	reallocarray.c\
+	strlcat.c\
+	strlcpy.c
+BIN = \
+	stagit\
+	stagit-index
+MAN1 = \
+	stagit.1\
+	stagit-index.1
+DOC = \
+	LICENSE\
+	README.md
+HDR = compat.h
+
+COMPATOBJ = \
+	reallocarray.o\
+	strlcat.o\
+	strlcpy.o
+
+OBJ = ${SRC:.c=.o} ${COMPATOBJ}
+
+all: ${BIN}
+
+.o:
+	${CC} -o $@ ${LDFLAGS}
+
+.c.o:
+	${CC} -o $@ -c $< ${STAGIT_CFLAGS} ${STAGIT_CPPFLAGS}
+
+dist:
+	rm -rf ${NAME}-${VERSION}
+	mkdir -p ${NAME}-${VERSION}
+	cp -f ${MAN1} ${HDR} ${SRC} ${COMPATSRC} ${DOC} \
+		Makefile assets/favicon.png assets/logo.png assets/style.css assets/helper ${NAME}-${VERSION}
+	# make tarball
+	tar -cf - ${NAME}-${VERSION} | \
+		gzip -c > ${NAME}-${VERSION}.tar.gz
+	rm -rf ${NAME}-${VERSION}
+
+${OBJ}: ${HDR}
+
+stagit: stagit.o ${COMPATOBJ}
+	${CC} -o $@ stagit.o ${COMPATOBJ} ${STAGIT_LDFLAGS}
+
+stagit-index: stagit-index.o ${COMPATOBJ}
+	${CC} -o $@ stagit-index.o ${COMPATOBJ} ${STAGIT_LDFLAGS}
+
+clean:
+	rm -f ${BIN} ${OBJ} ${NAME}-${VERSION}.tar.gz
+
+install: all
+	# installing executable files.
+	mkdir -p ${DESTDIR}${PREFIX}/bin
+	cp -f ${BIN} ${DESTDIR}${PREFIX}/bin
+	for f in ${BIN}; do chmod 755 ${DESTDIR}${PREFIX}/bin/$$f; done
+	# installing example files.
+	mkdir -p ${DESTDIR}${DOCPREFIX}
+	cp -f assets/style.css\
+		assets/favicon.png\
+		assets/logo.png\
+		assets/helper\
+		README.md\
+		${DESTDIR}${DOCPREFIX}
+	# installing manual pages.
+	mkdir -p ${DESTDIR}${MANPREFIX}/man1
+	cp -f ${MAN1} ${DESTDIR}${MANPREFIX}/man1
+	for m in ${MAN1}; do chmod 644 ${DESTDIR}${MANPREFIX}/man1/$$m; done
+
+uninstall:
+	# removing executable files.
+	for f in ${BIN}; do rm -f ${DESTDIR}${PREFIX}/bin/$$f; done
+	# removing example files.
+	rm -f \
+		${DESTDIR}${DOCPREFIX}/style.css\
+		${DESTDIR}${DOCPREFIX}/favicon.png\
+		${DESTDIR}${DOCPREFIX}/logo.png\
+		${DESTDIR}${DOCPREFIX}/example_create.sh\
+		${DESTDIR}${DOCPREFIX}/example_post-receive.sh\
+		${DESTDIR}${DOCPREFIX}/README.md
+	-rmdir ${DESTDIR}${DOCPREFIX}
+	# removing manual pages.
+	for m in ${MAN1}; do rm -f ${DESTDIR}${MANPREFIX}/man1/$$m; done
+
+.PHONY: all clean dist install uninstall

diff --git a/README.md b/README.md
@@ -0,0 +1,31 @@
+# stagit
+> static git page generator
+
+## Information
+This is my personal fork of [stagit](https://codemadness.org/stagit.html) which is running [git.acid.vegas](https://git.acid.vegas/)
+
+## Dependencies
+- C compiler *(C99)*
+- libc *(tested with OpenBSD, FreeBSD, NetBSD, Linux: glibc and musl)*
+- [libgit2](https://github.com/libgit2/libgit2) *(v0.22+)*
+- [md4c](https://github.com/mity/md4c) *(v0.4.4+)* 
+- POSIX make *(optional)*
+
+## Setup
+```shell
+cd stagit
+make
+sudo make install
+```
+
+###### New Features
+- Markdown rendering to HTML for README files
+- Syntax hilighting
+- Repository categories
+- Direct download to repository tar.gz
+- Style changes
+
+###### Props
+- Hiltjo Posthuma *(orignal author of [stagit](https://codemadness.org/git/stagit/))*
+- Larry Burns *([stagit-md](https://github.com/lmburns/stagit-md))*
+- Oscar Benedito *([md4c implementation](https://oscarbenedito.com/blog/2020/08/adding-about-pages-to-stagit/))*
+\ No newline at end of file

diff --git a/assets/acidvegas.png b/assets/acidvegas.png
Binary files differ.

diff --git a/assets/favicon.png b/assets/favicon.png
Binary files differ.

diff --git a/assets/helper b/assets/helper
@@ -0,0 +1,62 @@
+#!/bin/sh
+# stagit setup helper - developed by acidevegas (https://git.acid.vegas/stagit)
+# sudo apt-get install libgit2-1.1  libmd4c*
+
+URL="git.acid.vegas"
+PROTO="https"
+CLONE_URL="git://$URL"
+COMMIT_LIMIT=100
+HTML_DIR="$HOME/dev/git/acidvegas/git.acid.vegas"
+REPOS_DIR="$HOME/dev/git"
+REPO_EXCLUDE="git.acid.vegas"
+REPOS="$(find $REPOS_DIR -type d -name mirror -prune -o -type d -name $REPO_EXCLUDE -prune -o -type d -name .git -printf "%h\\n " | sort | xargs echo)"
+
+prepair() {
+	[ -d $HTML_DIR ] && rm -rf $HTML_DIR/*
+	mkdir -p $HTML_DIR/assets
+	cp acidvegas.png favicon.png logo.png mostdangerous.png style.css $HTML_DIR/assets
+	echo $URL > $HTML_DIR/CNAME
+}
+
+make_index() {
+	echo "[~] creating index..."
+	args=""
+	for dir in $(ls $REPOS_DIR | grep -v 'mirror'); do
+		echo "[~] indexing '$dir' repositories..."
+		DIR_REPOS="$(find $REPOS_DIR/$dir -type d -name mirror -prune -o -type d -name $REPO_EXCLUDE -prune -o -type d -name .git -printf "%h\\n " | sort | xargs echo)"
+		args="$args -c \"$dir\" $DIR_REPOS"
+	done
+    echo "$args" | xargs stagit-index > $HTML_DIR/index.html
+	echo "[+] finished"
+}
+
+make_repos() {
+	for dir in $(echo $REPOS); do
+		USER=$(basename $(dirname $dir))
+		REPO=$(basename $dir)
+		if [ -f $dir/.git/description ]; then
+			if [ "$(cat $dir/.git/description)" = "Unnamed repository; edit this file 'description' to name the repository." ]; then
+				read -p "description for '$USER/$REPO':" desc
+				echo "$desc" > $dir/.git/description
+				echo "[+] updated default 'description' file for '$REPO'"
+			fi
+		else
+			read -p "description for '$USER/$REPO':" desc
+			echo "$desc" > $dir/.git/description
+			echo "[+] added missing 'description' file for '$REPO'"
+		fi
+		if [ ! -f $dir/.git/url ]; then
+	        echo "$CLONE_URL/$REPO.git" > $dir/.git/url
+			echo "[+] added missing 'url' file for '$REPO'"
+		fi
+		echo "[~] processing '$REPO' repository..."
+		mkdir -p $HTML_DIR/$REPO && cd $HTML_DIR/$REPO && stagit -l $COMMIT_LIMIT -u "$PROTO://$URL/$REPO" $dir
+		ln -sf log.html index.html
+		#git --git-dir $dir/.git archive --format=tar.gz -o "$HTML_DIR/$REPO/$REPO.tar.gz" --prefix="$REPO/" HEAD
+	done
+}
+
+# Main
+prepair
+make_repos
+make_index
+\ No newline at end of file

diff --git a/assets/logo.png b/assets/logo.png
Binary files differ.

diff --git a/assets/mostdangerous.png b/assets/mostdangerous.png
Binary files differ.

diff --git a/assets/post-recieve b/assets/post-recieve
@@ -0,0 +1,40 @@
+#!/bin/sh
+# stagit setup helper - developed by acidevegas (https://git.acid.vegas/stagit)
+# sudo apt-get install libgit2-1.1  libmd4c*
+
+BASE_URL="https://git.acid.vegas"
+CLONE_URL="git://git.acid.vegas"
+HTML_DIR="/home/acidvegas/dev/html/stagit/out"
+REPOS="$(find $HOME/dev/git -type d -name mirror -prune -o -type d -name .git -print | sort | xargs echo)"
+
+mkdir -p $HTML_DIR
+cp favicon.png logo.png style.css $HTML_DIR
+for dir in $(echo $REPOS); do
+	OWNER=$(basename $(dirname $(dirname $dir)))
+	REPO=$(basename $(dirname $dir))
+	if [ -f $dir/description ]; then
+		REPO_DESC=$(cat $dir/description)
+		if [ "$REPO_DESC" = "Unnamed repository; edit this file 'description' to name the repository." ]; then
+			nano $dir/description
+			echo "[+] updated default 'description' file for '$REPO'"
+		fi
+	else
+		nano $dir/description
+		echo "[+] added missing 'description' file for '$REPO'"
+	fi
+	if [ ! -f $dir/owner ]; then
+		echo $OWNER > $dir/owner
+		echo "[+] added missing 'owner' file for '$REPO'"
+	fi
+	if [ ! -f $dir/url ]; then
+        echo "$CLONE_URL/$REPO.git" > $dir/url
+		echo "[+] added missing 'url' file for '$REPO'"
+	fi
+	echo "[~] processing '$REPO' repository..."
+	mkdir -p $HTML_DIR/$REPO && cd $HTML_DIR/$REPO && stagit -c ".cache" -u "$BASE_URL/$REPO" $dir
+	ln -sf log.html index.html && ln -sf ../style.css style.css && ln -sf ../logo.png logo.png && ln -sf ../favicon.png favicon.png
+	git --git-dir $dir archive HEAD -o "$HTML_DIR/$REPO/$REPO.zip" # TODO: can we do this with libgit2?
+done
+echo "[~] creating index..."
+stagit-index "$REPOS" > $HTML_DIR/index.html
+echo "[+] finished"
+\ No newline at end of file

diff --git a/assets/style.css b/assets/style.css
@@ -0,0 +1,42 @@
+*{font-family:monospace}
+a{color:#8dc;text-decoration:none}
+a:hover{color:#8dc}
+a:target {background-color:#222;}
+body{background-color:#000;color:#bdbdbd;font-size:14px;}
+h1{display:inline;}
+table thead td{font-weight:bold;}
+table td{padding:0 0.3em;}
+table tr{margin:0px;}
+img{max-width:800px}
+.border-bottom{border-bottom:1px solid #222;}
+.container{border:1px solid #222;border-radius:5px;padding-top:10px;padding-bottom:10px;overflow-x:auto;}
+.desc{color:#aaa;}
+td.num{text-align:right;}
+#blob{text-align:left;}
+#blob a{color:#555;}
+#blob a:hover{color:#56c8ff;text-decoration:none;}
+#blob a:target{color:#eee;}
+#content table td{vertical-align:top;white-space:nowrap;}
+#index .category td {font-style: italic;}
+#index .item-repo td:first-child{padding-left:1.5em;}
+#footer{font-size:smaller;padding-top:10px;}
+#files tbody tr:hover td, #index .item-repo:hover td, #log tbody tr:hover td{background-color:#111}
+#files tr td:nth-child(2), #index .item-repo td:nth-child(2), #log tr td:nth-child(2){white-space:normal;}
+.container, #container, #content, #footer, #index, #log{width:100%;max-width:800px;}
+
+a.d, a.h, a.i, a.line {text-decoration:none;}
+h1, h2, h3, h4, h5, h6{font-size:1em;margin:0;}
+img, h1, h2{vertical-align middle;}
+#branches tr td:nth-child(3),
+#branches tr:hover td, #tags tr:hover td{background-color:#111;}
+#tags tr td:nth-child(3){white-space:normal;}
+.A, span.i, pre a.i{color:#00cd00;}
+.D, span.d, pre a.d {color:#cd0000;}
+.md{text-align:left;}
+.md h1{font-size:1.5em;}
+.md h2{font-size:1.25em;}
+.md table{border-collapse:collapse;margin:1em 1em;border:1px solid var(--border);}
+.md table td, .md table th{padding:0.25em 1em;border:1px solid var(--border);}
+pre a.h{color:#00cdcd;}
+pre a.h:hover, pre a.i:hover, pre a.d:hover{text-decoration:none;}
+pre:not(#readme){overflow-x:auto;border:1px solid var(--code-border);border-radius:4px;}

diff --git a/compat.h b/compat.h
@@ -0,0 +1,6 @@
+#undef strlcat
+size_t strlcat(char *, const char *, size_t);
+#undef strlcpy
+size_t strlcpy(char *, const char *, size_t);
+#undef reallocarray
+void *reallocarray(void *, size_t, size_t);

diff --git a/reallocarray.c b/reallocarray.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "compat.h"
+
+/*
+ * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
+ * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
+ */
+#define MUL_NO_OVERFLOW	(1UL << (sizeof(size_t) * 4))
+
+void *
+reallocarray(void *optr, size_t nmemb, size_t size)
+{
+	if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+	    nmemb > 0 && SIZE_MAX / nmemb < size) {
+		errno = ENOMEM;
+		return NULL;
+	}
+	return realloc(optr, size * nmemb);
+}

diff --git a/stagit-index.1 b/stagit-index.1
@@ -0,0 +1,47 @@
+.Dd August 2, 2021
+.Dt STAGIT-INDEX 1
+.Os
+.Sh NAME
+.Nm stagit-index
+.Nd static git index page generator
+.Sh SYNOPSIS
+.Nm
+.Op Ar repodir...
+.Sh DESCRIPTION
+.Nm
+will create an index HTML page for the repositories specified and writes
+the HTML data to stdout.
+The repos in the index are in the same order as the arguments
+.Ar repodir
+specified.
+.Pp
+The basename of the directory is used as the repository name.
+The suffix ".git" is removed from the basename, this suffix is commonly used
+for "bare" repos.
+.Pp
+The content of the follow files specifies the meta data for each repository:
+.Bl -tag -width Ds
+.It .git/description or description (bare repos).
+description
+.It .git/owner or owner (bare repo).
+owner of repository
+.El
+.Pp
+For changing the style of the page you can use the following files:
+.Bl -tag -width Ds
+.It favicon.png
+favicon image.
+.It logo.png
+32x32 logo.
+.It style.css
+CSS stylesheet.
+.El
+.Sh EXAMPLES
+.Bd -literal
+cd htmlroot
+stagit-index path/to/gitrepo1 path/to/gitrepo2 > index.html
+.Ed
+.Sh SEE ALSO
+.Xr stagit 1
+.Sh AUTHORS
+.An Hiltjo Posthuma Aq Mt hiltjo@codemadness.org

diff --git a/stagit-index.c b/stagit-index.c
@@ -0,0 +1,216 @@
+#include <err.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <git2.h>
+
+static git_repository *repo;
+static const char *relpath = "";
+static char description[255] = "Acidvegas Repositories";
+static char *name = "";
+static char category[255];
+
+/* 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);
+}
+
+/* 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);
+		}
+	}
+}
+
+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", intm);
+	fputs(out, fp);
+}
+
+void writeheader(FILE *fp) {
+	fputs("<!DOCTYPE html>\n<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n<title>", fp);
+	xmlencode(fp, description, strlen(description));
+	fputs("</title>\n<meta name=\"description\" content=\"acidvegas repositories\">\n"
+		"<meta name=\"keywords\" content=\"git, repositories, supernets, irc, python, stagit\">\n"
+		"<meta name=\"author\" content=\"acidvegas\">\n", fp);
+	fputs("<link rel=\"icon\" type=\"image/png\" href=\"/assets/favicon.png\">\n"
+		"<link rel=\"stylesheet\" type=\"text/css\" href=\"/assets/style.css\">\n", fp);
+	fputs("<center>\n<img src=\"/assets/acidvegas.png\"><br>\n<img src=\"/assets/mostdangerous.png\"><br><br>\n"
+		"<div id=\"content\">\n\t<table id=\"index\">\n\t\t<thead>\n\t\t\t<tr><td>Name</td><td>Description</td><td>Last commit</td></tr>\n\t\t</thead>\n\t\t<tbody>", fp);
+}
+
+void writefooter(FILE *fp) {
+	fputs("\n\t\t</tbody>\n\t</table>\n</div>\n<div id=\"footer\">\n"
+		"\t&copy; 2023 acidvegas, inc &bull; generated with stagit\n"
+		"</div>\n</center>", fp);
+}
+
+int writelog(FILE *fp) {
+	git_commit *commit = NULL;
+	const git_signature *author;
+	git_revwalk *w = NULL;
+	git_oid id;
+	char *stripped_name = NULL, *p;
+	int ret = 0;
+
+	git_revwalk_new(&w, repo);
+	git_revwalk_push_head(w);
+
+	if (git_revwalk_next(&id, w) ||
+	    git_commit_lookup(&commit, repo, &id)) {
+		ret = -1;
+		goto err;
+	}
+
+	author = git_commit_author(commit);
+
+	/* strip .git suffix */
+	if (!(stripped_name = strdup(name)))
+		err(1, "strdup");
+	if ((p = strrchr(stripped_name, '.')))
+		if (!strcmp(p, ".git"))
+			*p = '\0';
+
+	fputs("\n\t\t\t<tr class=\"item-repo\"><td><a href=\"", fp);
+	percentencode(fp, stripped_name, strlen(stripped_name));
+	fputs("/log.html\">", fp);
+	xmlencode(fp, stripped_name, strlen(stripped_name));
+	fputs("</a></td><td>", fp);
+	xmlencode(fp, description, strlen(description));
+	fputs("</td><td>", fp);
+	if (author)
+		printtimeshort(fp, &(author->when));
+	fputs("</td></tr>", fp);
+
+	git_commit_free(commit);
+err:
+	git_revwalk_free(w);
+	free(stripped_name);
+
+	return ret;
+}
+
+int main(int argc, char *argv[]) {
+	FILE *fp;
+	char path[PATH_MAX], repodirabs[PATH_MAX + 1];
+	const char *repodir;
+	int i, ret = 0;
+
+	if (argc < 2) {
+		fprintf(stderr, "usage: %s [repodir...]\n", argv[0]);
+		return 1;
+	}
+
+	/* 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 (pledge("stdio rpath", NULL) == -1)
+		err(1, "pledge");
+#endif
+
+	writeheader(stdout);
+
+	for (i = 1; i < argc; i++) {
+		if (!strcmp(argv[i], "-c")) {
+			i++;
+			if (i == argc)
+				err(1, "missing argument");
+			repodir = argv[i];
+			fputs("\n\t\t\t<tr class=\"category\"><td colspan=\"3\">", stdout);
+			xmlencode(stdout, repodir, strlen(repodir));
+			fputs("</td></tr>", stdout);
+			continue;
+		}
+
+		repodir = argv[i];
+		if (!realpath(repodir, repodirabs))
+			err(1, "realpath");
+
+		if (git_repository_open_ext(&repo, repodir, GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
+			fprintf(stderr, "%s: cannot open repository\n", argv[0]);
+			ret = 1;
+			continue;
+		}
+
+		/* use directory name as name */
+		if ((name = strrchr(repodirabs, '/')))
+			name++;
+		else
+			name = "";
+
+		/* read description or .git/description */
+		joinpath(path, sizeof(path), repodir, "description");
+		if (!(fp = fopen(path, "r"))) {
+			joinpath(path, sizeof(path), repodir, ".git/description");
+			fp = fopen(path, "r");
+		}
+		description[0] = '\0';
+		if (fp) {
+			if (!fgets(description, sizeof(description), fp))
+				description[0] = '\0';
+			checkfileerror(fp, "description", 'r');
+			fclose(fp);
+		}
+		writelog(stdout);
+	}
+	writefooter(stdout);
+
+	/* cleanup */
+	git_repository_free(repo);
+	git_libgit2_shutdown();
+
+	checkfileerror(stdout, "<stdout>", 'w');
+
+	return ret;
+}

diff --git a/stagit.1 b/stagit.1
@@ -0,0 +1,125 @@
+.Dd August 2, 2021
+.Dt STAGIT 1
+.Os
+.Sh NAME
+.Nm stagit
+.Nd static git page generator
+.Sh SYNOPSIS
+.Nm
+.Op Fl c Ar cachefile
+.Op Fl l Ar commits
+.Op Fl u Ar baseurl
+.Ar repodir
+.Sh DESCRIPTION
+.Nm
+writes HTML pages for the repository
+.Ar repodir
+to the current directory.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl c Ar cachefile
+Cache the entries of the log page up to the point of
+the last commit.
+The
+.Ar cachefile
+will store the last commit id and the entries in the HTML table.
+It is up to the user to make sure the state of the
+.Ar cachefile
+is in sync with the history of the repository.
+.It Fl l Ar commits
+Write a maximum number of
+.Ar commits
+to the log.html file only.
+However the commit files are written as usual.
+.It Fl u Ar baseurl
+Base URL to make links in the Atom feeds absolute.
+For example: "https://git.codemadness.org/stagit/".
+.El
+.Pp
+The options
+.Fl c
+and
+.Fl l
+cannot be used at the same time.
+.Pp
+The following files will be written:
+.Bl -tag -width Ds
+.It atom.xml
+Atom XML feed of the last 100 commits.
+.It tags.xml
+Atom XML feed of the tags.
+.It files.html
+List of files in the latest tree, linking to the file.
+.It log.html
+List of commits in reverse chronological applied commit order, each commit
+links to a page with a diffstat and diff of the commit.
+.It refs.html
+Lists references of the repository such as branches and tags.
+.El
+.Pp
+For each entry in HEAD a file will be written in the format:
+file/filepath.html.
+This file will contain the textual data of the file prefixed by line numbers.
+The file will have the string "Binary file" if the data is considered to be
+non-textual.
+.Pp
+For each commit a file will be written in the format:
+commit/commitid.html.
+This file will contain the diffstat and diff of the commit.
+It will write the string "Binary files differ" if the data is considered to
+be non-textual.
+Too large diffs will be suppressed and a string
+"Diff is too large, output suppressed" will be written.
+.Pp
+When a commit HTML file exists it won't be overwritten again, note that if
+you've changed
+.Nm
+or changed one of the metadata files of the repository it is recommended to
+recreate all the output files because it will contain old data.
+To do this remove the output directory and
+.Ar cachefile ,
+then recreate the files.
+.Pp
+The basename of the directory is used as the repository name.
+The suffix ".git" is removed from the basename, this suffix is commonly used
+for "bare" repos.
+.Pp
+The content of the follow files specifies the metadata for each repository:
+.Bl -tag -width Ds
+.It .git/description or description (bare repo).
+description
+.It .git/owner or owner (bare repo).
+owner of repository
+.It .git/url or url (bare repo).
+primary clone URL of the repository, for example:
+git://git.codemadness.org/stagit
+.El
+.Pp
+When a README or LICENSE file exists in HEAD or a .gitmodules submodules file
+exists in HEAD a direct link in the menu is made.
+.Pp
+For changing the style of the page you can use the following files:
+.Bl -tag -width Ds
+.It favicon.png
+favicon image.
+.It logo.png
+32x32 logo.
+.It style.css
+CSS stylesheet.
+.El
+.Sh EXIT STATUS
+.Ex -std
+.Sh EXAMPLES
+.Bd -literal
+mkdir -p htmlroot/htmlrepo1 && cd htmlroot/htmlrepo1
+stagit path/to/gitrepo1
+# repeat for other repositories.
+.Ed
+.Pp
+To update the HTML files when the repository is changed a git post-receive hook
+can be used, see the file example_post-receive.sh for an example.
+.Sh SEE ALSO
+.Xr stagit-index 1
+.Sh AUTHORS
+.An Hiltjo Posthuma Aq Mt hiltjo@codemadness.org

diff --git a/stagit.c b/stagit.c
@@ -0,0 +1,1404 @@
+#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 <md4c-html.h>
+
+#include "compat.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", intm);
+	fputs(out, fp);
+}
+
+void writeheader(FILE *fp, const char *title) {
+	fputs("<!DOCTYPE html>\n<meta 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));
+	fputs("</title>\n<meta name=\"description\" content=\"acidvegas repositories\">\n"
+		"<meta name=\"keywords\" content=\"git, repositories, supernets, irc, python, stagit\">\n"
+		"<meta name=\"author\" content=\"acidvegas\">\n", fp);
+	fputs("<link rel=\"icon\" type=\"image/png\" href=\"/assets/favicon.png\">\n"
+		"<link rel=\"stylesheet\" type=\"text/css\" href=\"/assets/style.css\">\n"
+		"<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);
+	fputs("<center>\n<a href=\"/index.html\">\n<img src=\"/assets/acidvegas.png\"><br>\n<img src=\"/assets/mostdangerous.png\"></a><br><br>\n<div id=\"content\">\n<div class=\"container\">\n\t<table id=\"container\">\n\t\t<tr><td><h1>", fp);
+	xmlencode(fp, strippedname, strlen(strippedname));
+	fputs("</h1><span class=\"desc\"> - ", fp);
+	xmlencode(fp, description, strlen(description));
+	fputs("</span></td></tr>\n", fp);
+	if (cloneurl[0]) {
+		fputs("\t\t<tr><td><i>git clone <a href=\"", fp);
+		xmlencode(fp, cloneurl, strlen(cloneurl)); /* not percent-encoded */
+		fputs("\">", fp);
+		xmlencode(fp, cloneurl, strlen(cloneurl));
+		fputs("</a></i></td></tr>", fp);
+	}
+	fputs("\t\t<tr><td>\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);
+		fprintf(fp, " | <a href=\"%sREADME.html\">README</a>", relpath);
+	if (license)
+		fprintf(fp, " | <a href=\"%sfile/%s.html\">LICENSE</a>",
+		        relpath, license);
+	fputs("</td></tr>\n\t</table>\n</div>\n<br>\n", fp);
+}
+
+void writefooter(FILE *fp) {
+	fputs("</div>\n</table>\n</div>\n<div id=\"footer\">\n"
+		"\t&copy; 2023 acidvegas, inc &bull; generated with stagit\n"
+		"</div>\n</center>", fp);
+}
+
+size_t writeblobhtml(FILE *fp, const git_blob *blob) {
+	size_t n = 0, i, len, prev;
+	const char *nfmt = "<a href=\"#l%zu\" class=\"line\" id=\"l%zu\">%7zu</a> ";
+	const char *s = git_blob_rawcontent(blob);
+
+	len = git_blob_rawsize(blob);
+	fputs("<pre id=\"blob\">\n", fp);
+
+	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);
+			putc('\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, "<br><b>parent</b> <a href=\"%scommit/%s.html\">%s</a>\n", relpath, ci->parentoid, ci->parentoid);
+	if (ci->author) {
+		fputs("<br><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<br><b>Date:</b>   ", fp);
+		printtime(fp, &(ci->author->when));
+		putc('\n', fp);
+	}
+	if (ci->msg) {
+		putc('\n', fp);
+		fputs("<br><br>", 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("<br><br><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></table></div><br><div class=\"container\"><table id=\"container\"><tr><td class=\"border-bottom\">%zu file%s changed, %zu insertion%s(+), %zu deletion%s(-)<br><br></td></tr>\n",
+		ci->filecount, ci->filecount == 1 ? "" : "s",
+	        ci->addcount,  ci->addcount  == 1 ? "" : "s",
+	        ci->delcount,  ci->delcount  == 1 ? "" : "s");
+
+	for (i = 0; i < ci->ndeltas; i++) {
+		patch = ci->deltas[i]->patch;
+		delta = git_patch_get_delta(patch);
+		fprintf(fp, "<tr><td><pre><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>", fp);
+	//if (ci->author)
+	//	xmlencode(fp, ci->author->name, strlen(ci->author->name));
+	fputs("<td class=\"num\">", fp);
+	fprintf(fp, "%zu", ci->filecount);
+	fputs("</td><td class=\"num\">", fp);
+	fprintf(fp, "+%zu", ci->addcount);
+	fputs("</td><td class=\"num\">", 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("<div class=\"container\"><table id=\"container\"><tr><td>", fpfile);
+			printshowfile(fpfile, ci);
+			fputs("</pre></td></tr></table></div>\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("<div class=\"container\"><p>", fp);
+	xmlencode(fp, filename, strlen(filename));
+	fprintf(fp, " <span class=\"desc\">(%zuB)</span>", filesize);
+	fputs("</p></div>", fp);
+
+	if (git_blob_is_binary((git_blob *)obj))
+		fputs("<p>Binary file.</p>\n", fp);
+	else
+		lc = writeblobhtml(fp, (git_blob *)obj);
+
+	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\">", 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\"></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\"><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);
+}
+
+void
+process_output_md(const char* text, unsigned int size, void* fp)
+{
+	fprintf((FILE *)fp, "%.*s", size, text);
+}
+
+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, r;
+
+	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:");
+			r = i;
+		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);
+
+	/* README page */
+	if (readme) {
+		fp = efopen("README.html", "w");
+		writeheader(fp, "README");
+		git_revparse_single(&obj, repo, readmefiles[r]);
+		const char *s = git_blob_rawcontent((git_blob *)obj);
+		if (r == 1) {
+			git_off_t len = git_blob_rawsize((git_blob *)obj);
+			fputs("<div class=\"md\">", fp);
+			if (md_html(s, len, process_output_md, fp, MD_FLAG_TABLES | MD_FLAG_TASKLISTS |
+			    MD_FLAG_PERMISSIVEEMAILAUTOLINKS | MD_FLAG_PERMISSIVEURLAUTOLINKS, 0))
+				fprintf(stderr, "Error parsing markdown\n");
+			fputs("</div>\n", fp);
+		} else {
+			fputs("<pre id=\"readme\">", fp);
+			xmlencode(fp, s, strlen(s));
+			fputs("</pre>\n", fp);
+		}
+		writefooter(fp);
+		fclose(fp);
+	}
+
+	/* 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 class=\"num\"><b>Files</b></td><td class=\"num\"><b>+</b></td>"
+	      "<td class=\"num\"><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;
+}

diff --git a/strlcat.c b/strlcat.c
@@ -0,0 +1,57 @@
+/*	$OpenBSD: strlcat.c,v 1.15 2015/03/02 21:41:08 millert Exp $	*/
+
+/*
+ * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "compat.h"
+
+/*
+ * Appends src to string dst of size dsize (unlike strncat, dsize is the
+ * full size of dst, not space left).  At most dsize-1 characters
+ * will be copied.  Always NUL terminates (unless dsize <= strlen(dst)).
+ * Returns strlen(src) + MIN(dsize, strlen(initial dst)).
+ * If retval >= dsize, truncation occurred.
+ */
+size_t
+strlcat(char *dst, const char *src, size_t dsize)
+{
+	const char *odst = dst;
+	const char *osrc = src;
+	size_t n = dsize;
+	size_t dlen;
+
+	/* Find the end of dst and adjust bytes left but don't go past end. */
+	while (n-- != 0 && *dst != '\0')
+		dst++;
+	dlen = dst - odst;
+	n = dsize - dlen;
+
+	if (n-- == 0)
+		return(dlen + strlen(src));
+	while (*src != '\0') {
+		if (n != 0) {
+			*dst++ = *src;
+			n--;
+		}
+		src++;
+	}
+	*dst = '\0';
+
+	return(dlen + (src - osrc));	/* count does not include NUL */
+}

diff --git a/strlcpy.c b/strlcpy.c
@@ -0,0 +1,52 @@
+/*	$OpenBSD: strlcpy.c,v 1.12 2015/01/15 03:54:12 millert Exp $	*/
+
+/*
+ * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "compat.h"
+
+/*
+ * Copy string src to buffer dst of size dsize.  At most dsize-1
+ * chars will be copied.  Always NUL terminates (unless dsize == 0).
+ * Returns strlen(src); if retval >= dsize, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t dsize)
+{
+	const char *osrc = src;
+	size_t nleft = dsize;
+
+	/* Copy as many bytes as will fit. */
+	if (nleft != 0) {
+		while (--nleft != 0) {
+			if ((*dst++ = *src++) == '\0')
+				break;
+		}
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src. */
+	if (nleft == 0) {
+		if (dsize != 0)
+			*dst = '\0';		/* NUL-terminate dst */
+		while (*src++)
+			;
+	}
+
+	return(src - osrc - 1);	/* count does not include NUL */
+}