stagit/stagit-index.c
2015-12-26 21:05:55 +01:00

235 lines
5.4 KiB
C

#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <inttypes.h>
#include <libgen.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <git2.h>
#include "compat.h"
#include "config.h"
static git_repository *repo;
static const char *relpath = "";
static const char *repodir;
static char description[255] = "Repositories";
static char name[255];
static char owner[255];
FILE *
efopen(const char *name, const char *flags)
{
FILE *fp;
if (!(fp = fopen(name, flags)))
err(1, "fopen");
return 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("&apos;", fp); break;
case '&': fputs("&amp;", fp); break;
case '"': fputs("&quot;", fp); break;
default: fputc(*s, fp);
}
}
}
/* Some implementations of basename(3) return a pointer to a static
* internal buffer (OpenBSD). Others modify the contents of `path` (POSIX).
* This is a wrapper function that is compatible with both versions.
* The program will error out if basename(3) failed, this can only happen
* with the OpenBSD version. */
char *
xbasename(const char *path)
{
char *p, *b;
if (!(p = strdup(path)))
err(1, "strdup");
if (!(b = basename(p)))
err(1, "basename");
if (!(b = strdup(b)))
err(1, "strdup");
free(p);
return b;
}
void
printtimeformat(FILE *fp, const git_time *intime, const char *fmt)
{
struct tm *intm;
time_t t;
char out[32];
t = (time_t) intime->time + (intime->offset * 60);
intm = gmtime(&t);
strftime(out, sizeof(out), fmt, intm);
fputs(out, fp);
}
void
printtimeshort(FILE *fp, const git_time *intime)
{
printtimeformat(fp, intime, "%Y-%m-%d %H:%M");
}
int
writeheader(FILE *fp)
{
fputs("<!DOCTYPE HTML>"
"<html dir=\"ltr\" lang=\"en\">\n<head>\n"
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
"<meta http-equiv=\"Content-Language\" content=\"en\" />\n<title>", fp);
xmlencode(fp, description, strlen(description));
fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
fputs("</head>\n<body>\n", fp);
fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
"<td><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
relpath, name, description);
fputs("</td></tr>\n</table>\n<hr/><div id=\"content\">\n"
"<table id=\"index\"><thead>\n"
"<tr><td>Name</td><td>Description</td><td>Owner</td><td>Last commit</td></tr>"
"</thead><tbody>\n", fp);
return 0;
}
int
writefooter(FILE *fp)
{
return !fputs("</tbody></table></div></body>\n</html>", fp);
}
int
writelog(FILE *fp)
{
git_commit *commit = NULL;
const git_signature *author;
git_revwalk *w = NULL;
git_oid id;
int ret = 0;
git_revwalk_new(&w, repo);
git_revwalk_push_head(w);
git_revwalk_sorting(w, GIT_SORT_TIME);
git_revwalk_simplify_first_parent(w);
if (git_revwalk_next(&id, w) ||
git_commit_lookup(&commit, repo, &id)) {
ret = -1;
goto err;
}
author = git_commit_author(commit);
fputs("<tr><td><a href=\"", fp);
xmlencode(fp, name, strlen(name));
fputs("/log.html\">", fp);
xmlencode(fp, name, strlen(name));
fputs("</a></td><td>", fp);
xmlencode(fp, description, strlen(description));
fputs("</td><td>", fp);
xmlencode(fp, owner, strlen(owner));
fputs("</td><td>", fp);
if (author)
printtimeshort(fp, &(author->when));
fputs("</td></tr>", fp);
git_commit_free(commit);
err:
git_revwalk_free(w);
return ret;
}
int
main(int argc, char *argv[])
{
const git_error *e = NULL;
FILE *fp;
char path[PATH_MAX], *p;
int i, status;
if (argc < 2) {
fprintf(stderr, "%s [repodir...]\n", argv[0]);
return 1;
}
git_libgit2_init();
writeheader(stdout);
for (i = 1; i < argc; i++) {
repodir = argv[i];
if ((status = git_repository_open_ext(&repo, repodir,
GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) < 0) {
e = giterr_last();
fprintf(stderr, "error %d/%d: %s\n", status, e->klass, e->message);
return status;
}
/* use directory name as name */
p = xbasename(repodir);
snprintf(name, sizeof(name), "%s", p);
free(p);
/* read description or .git/description */
description[0] = '\0';
snprintf(path, sizeof(path), "%s%s%s",
repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
if (!(fp = fopen(path, "r"))) {
snprintf(path, sizeof(path), "%s%s%s",
repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
fp = fopen(path, "r");
}
if (fp) {
if (!fgets(description, sizeof(description), fp))
description[0] = '\0';
fclose(fp);
}
/* read owner or .git/owner */
owner[0] = '\0';
snprintf(path, sizeof(path), "%s%s%s",
repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "owner");
if (!(fp = fopen(path, "r"))) {
snprintf(path, sizeof(path), "%s%s%s",
repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/owner");
fp = fopen(path, "r");
}
if (fp) {
if (!fgets(owner, sizeof(owner), fp))
owner[0] = '\0';
fclose(fp);
}
writelog(stdout);
}
writefooter(stdout);
/* cleanup */
git_repository_free(repo);
git_libgit2_shutdown();
return 0;
}