xfnw/stagit
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
stagit/urmoms.c

642 lines
15 KiB
C
Raw Blame History

#include <sys/stat.h>
#include <err.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"
struct commitinfo {
const git_oid *id;
char oid[GIT_OID_HEXSZ + 1];
char parentoid[GIT_OID_HEXSZ + 1];
const git_signature *author;
const char *summary;
const char *msg;
git_diff_stats *stats;
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;
};
static git_repository *repo;
static const char *relpath = "";
static const char *repodir;
static char name[255];
static char description[255];
static int hasreadme, haslicense;
void
commitinfo_free(struct commitinfo *ci)
{
if (!ci)
return;
git_diff_stats_free(ci->stats);
git_diff_free(ci->diff);
git_commit_free(ci->commit);
}
struct commitinfo *
commitinfo_getbyoid(const git_oid *id)
{
struct commitinfo *ci;
int error;
if (!(ci = calloc(1, sizeof(struct commitinfo))))
err(1, "calloc");
ci->id = id;
if (git_commit_lookup(&(ci->commit), repo, id))
goto err;
/* TODO: show tags when commit has it */
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->summary = git_commit_summary(ci->commit);
ci->msg = git_commit_message(ci->commit);
if ((error = git_commit_tree(&(ci->commit_tree), ci->commit)))
goto err; /* TODO: handle error */
if (!(error = git_commit_parent(&(ci->parent), ci->commit, 0))) {
if ((error = git_commit_tree(&(ci->parent_tree), ci->parent)))
goto err;
} else {
ci->parent = NULL;
ci->parent_tree = NULL;
}
if ((error = git_diff_tree_to_tree(&(ci->diff), repo, ci->parent_tree, ci->commit_tree, NULL)))
goto err;
if (git_diff_get_stats(&(ci->stats), ci->diff))
goto err;
ci->addcount = git_diff_stats_insertions(ci->stats);
ci->delcount = git_diff_stats_deletions(ci->stats);
ci->filecount = git_diff_stats_files_changed(ci->stats);
/* TODO: show tag when commit has it */
return ci;
err:
commitinfo_free(ci);
free(ci);
return NULL;
}
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", fp);
fprintf(fp, "<title>%s%s%s</title>\n", name, description[0] ? " - " : "", description);
fprintf(fp, "<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
fprintf(fp, "<link rel=\"alternate\" type=\"application/atom+xml\" title=\"%s Atom Feed\" href=\"%satom.xml\" />\n",
name, relpath);
fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
fputs("</head>\n<body>\n\n", fp);
fprintf(fp, "<table><tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>"
"<td><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
relpath, name, description);
fprintf(fp, "<a href=\"%slog.html\">Log</a> | ", relpath);
fprintf(fp, "<a href=\"%sfiles.html\">Files</a>", relpath);
if (hasreadme)
fprintf(fp, " | <a href=\"%sreadme.html\">README</a>", relpath);
if (haslicense)
fprintf(fp, " | <a href=\"%slicense.html\">LICENSE</a>", relpath);
fputs("</td></tr></table>\n<hr/><div id=\"content\">\n", fp);
return 0;
}
int
writefooter(FILE *fp)
{
return !fputs("</div></body>\n</html>", fp);
}
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
printtimez(FILE *fp, const git_time *intime)
{
printtimeformat(fp, intime, "%Y-%m-%dT%H:%M:%SZ");
}
void
printtime(FILE *fp, const git_time *intime)
{
printtimeformat(fp, intime, "%a %b %e %T %Y");
}
void
printtimeshort(FILE *fp, const git_time *intime)
{
printtimeformat(fp, intime, "%Y-%m-%d %H:%M");
}
void
writeblobhtml(FILE *fp, const git_blob *blob)
{
xmlencode(fp, git_blob_rawcontent(blob), (size_t)git_blob_rawsize(blob));
}
void
printcommit(FILE *fp, struct commitinfo *ci)
{
/* TODO: show tag when commit has it */
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 0
if ((count = (int)git_commit_parentcount(commit)) > 1) {
fprintf(fp, "<b>Merge:</b>");
for (i = 0; i < count; i++) {
git_oid_tostr(buf, 8, git_commit_parent_id(commit, i));
fprintf(fp, " <a href=\"%scommit/%s.html\">%s</a>",
relpath, buf, buf);
}
fputc('\n', fp);
}
#endif
if (ci->author) {
fprintf(fp, "<b>Author:</b> ");
xmlencode(fp, ci->author->name, strlen(ci->author->name));
fprintf(fp, " &lt;<a href=\"mailto:");
xmlencode(fp, ci->author->email, strlen(ci->author->email));
fputs("\">", fp);
xmlencode(fp, ci->author->email, strlen(ci->author->email));
fputs("</a>&gt;\n<b>Date:</b> ", fp);
printtime(fp, &(ci->author->when));
fputc('\n', fp);
}
fputc('\n', fp);
if (ci->msg)
xmlencode(fp, ci->msg, strlen(ci->msg));
fputc('\n', fp);
}
void
printshowfile(struct commitinfo *ci)
{
const git_diff_delta *delta;
const git_diff_hunk *hunk;
const git_diff_line *line;
git_patch *patch;
git_buf statsbuf;
size_t ndeltas, nhunks, nhunklines;
FILE *fp;
size_t i, j, k;
char path[PATH_MAX];
snprintf(path, sizeof(path), "commit/%s.html", ci->oid);
/* check if file exists if so skip it */
if (!access(path, F_OK))
return;
fp = efopen(path, "w+b");
writeheader(fp);
fputs("<pre>\n", fp);
printcommit(fp, ci);
memset(&statsbuf, 0, sizeof(statsbuf));
/* diff stat */
if (ci->stats) {
if (!git_diff_stats_to_buf(&statsbuf, ci->stats,
GIT_DIFF_STATS_FULL | GIT_DIFF_STATS_SHORT, 80)) {
if (statsbuf.ptr && statsbuf.ptr[0]) {
fprintf(fp, "<b>Diffstat:</b>\n");
fputs(statsbuf.ptr, fp);
}
}
}
fputs("<hr/>", fp);
ndeltas = git_diff_num_deltas(ci->diff);
for (i = 0; i < ndeltas; i++) {
if (git_patch_from_diff(&patch, ci->diff, i)) {
git_patch_free(patch);
break; /* TODO: handle error */
}
delta = git_patch_get_delta(patch);
fprintf(fp, "<b>diff --git a/<a href=\"%sfile/%s\">%s</a> b/<a href=\"%sfile/%s\">%s</a></b>\n",
relpath, delta->old_file.path, delta->old_file.path,
relpath, delta->new_file.path, delta->new_file.path);
/* check binary data */
if (delta->flags & GIT_DIFF_FLAG_BINARY) {
fputs("Binary files differ\n", fp);
git_patch_free(patch);
continue;
}
nhunks = git_patch_num_hunks(patch);
for (j = 0; j < nhunks; j++) {
if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
break; /* TODO: handle error ? */
fprintf(fp, "<span class=\"h\">%s</span>\n", hunk->header);
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\" id=\"h%zu-%zu\" class=\"i\">+",
j, k, j, k);
else if (line->new_lineno == -1)
fprintf(fp, "<a href=\"#h%zu-%zu\" id=\"h%zu-%zu\" class=\"d\">-",
j, k, j, k);
else
fputc(' ', fp);
xmlencode(fp, line->content, line->content_len);
if (line->old_lineno == -1 || line->new_lineno == -1)
fputs("</a>", fp);
}
}
git_patch_free(patch);
}
git_buf_free(&statsbuf);
fputs( "</pre>\n", fp);
writefooter(fp);
fclose(fp);
return;
}
int
writelog(FILE *fp)
{
struct commitinfo *ci;
git_revwalk *w = NULL;
git_oid id;
size_t len;
int ret = 0;
mkdir("commit", 0755);
git_revwalk_new(&w, repo);
git_revwalk_push_head(w);
git_revwalk_sorting(w, GIT_SORT_TIME);
git_revwalk_simplify_first_parent(w);
/* TODO: also make "expanded" log ? (with message body) */
fputs("<table><thead>\n<tr><td>Age</td><td>Commit message</td><td>Author</td>"
"<td>Files</td><td>+</td><td>-</td></tr>\n</thead><tbody>\n", fp);
while (!git_revwalk_next(&id, w)) {
relpath = "";
if (!(ci = commitinfo_getbyoid(&id)))
break;
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);
if ((len = strlen(ci->summary)) > 79) {
xmlencode(fp, ci->summary, 76);
fputs("...", fp);
} else {
xmlencode(fp, ci->summary, len);
}
fputs("</a>", fp);
}
fputs("</td><td>", fp);
if (ci->author)
xmlencode(fp, ci->author->name, strlen(ci->author->name));
fputs("</td><td>", fp);
fprintf(fp, "%zu", ci->filecount);
fputs("</td><td>", fp);
fprintf(fp, "+%zu", ci->addcount);
fputs("</td><td>", fp);
fprintf(fp, "-%zu", ci->delcount);
fputs("</td></tr>\n", fp);
relpath = "../";
printshowfile(ci);
commitinfo_free(ci);
}
fprintf(fp, "</tbody></table>");
git_revwalk_free(w);
relpath = "";
return ret;
}
void
printcommitatom(FILE *fp, struct commitinfo *ci)
{
fputs("<entry>\n", fp);
fprintf(fp, "<id>%s</id>\n", ci->oid);
if (ci->author) {
fputs("<updated>", fp);
printtimez(fp, &(ci->author->when));
fputs("</updated>\n", fp);
}
if (ci->summary) {
fputs("<title type=\"text\">", fp);
xmlencode(fp, ci->summary, strlen(ci->summary));
fputs("</title>\n", fp);
}
fputs("<content type=\"text\">", fp);
fprintf(fp, "commit %s\n", ci->oid);
if (ci->parentoid[0])
fprintf(fp, "parent %s\n", ci->parentoid);
#if 0
if ((count = (int)git_commit_parentcount(commit)) > 1) {
fprintf(fp, "Merge:");
for (i = 0; i < count; i++) {
git_oid_tostr(buf, 8, git_commit_parent_id(commit, i));
fprintf(fp, " %s", buf);
}
fputc('\n', fp);
}
#endif
if (ci->author) {
fprintf(fp, "Author: ");
xmlencode(fp, ci->author->name, strlen(ci->author->name));
fprintf(fp, " &lt;");
xmlencode(fp, ci->author->email, strlen(ci->author->email));
fprintf(fp, "&gt;\nDate: ");
printtime(fp, &(ci->author->when));
}
fputc('\n', fp);
if (ci->msg)
xmlencode(fp, ci->msg, strlen(ci->msg));
fputs("\n</content>\n", fp);
if (ci->author) {
fputs("<author><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("</entry>\n", fp);
}
int
writeatom(FILE *fp)
{
struct commitinfo *ci;
git_revwalk *w = NULL;
git_oid id;
size_t i, m = 100; /* max */
fputs("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n", fp);
fputs("<feed xmlns=\"http://www.w3.org/2005/Atom\">\n<title>", fp);
xmlencode(fp, name, strlen(name));
fputs(", branch master</title>\n<subtitle>", fp);
xmlencode(fp, description, strlen(description));
fputs("</subtitle>\n", fp);
git_revwalk_new(&w, repo);
git_revwalk_push_head(w);
git_revwalk_sorting(w, GIT_SORT_TIME);
git_revwalk_simplify_first_parent(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);
fputs("</feed>", fp);
return 0;
}
int
writefiles(FILE *fp)
{
const git_index_entry *entry;
git_index *index;
size_t count, i;
fputs("<table><thead>\n"
"<tr><td>Mode</td><td>Name</td><td>Size</td></tr>\n"
"</thead><tbody>\n", fp);
git_repository_index(&index, repo);
count = git_index_entrycount(index);
for (i = 0; i < count; i++) {
entry = git_index_get_byindex(index, i);
fputs("<tr><td>", fp);
fprintf(fp, "%u", entry->mode); /* TODO: fancy print, like: "-rw-r--r--" */
fprintf(fp, "</td><td><a href=\"%sfile/", relpath);
xmlencode(fp, entry->path, strlen(entry->path));
fputs("\">", fp);
xmlencode(fp, entry->path, strlen(entry->path));
fputs("</a></td><td>", fp);
fprintf(fp, "%" PRIu64, entry->file_size);
fputs("</td></tr>\n", fp);
}
fputs("</tbody></table>", fp);
return 0;
}
int
main(int argc, char *argv[])
{
git_object *obj_license = NULL, *obj_readme = NULL;
const git_error *e = NULL;
FILE *fp, *fpread;
char path[PATH_MAX], *p;
int status;
if (argc != 2) {
fprintf(stderr, "%s <repodir>\n", argv[0]);
return 1;
}
repodir = argv[1];
git_libgit2_init();
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 */
snprintf(path, sizeof(path), "%s%s%s",
repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
if (!(fpread = fopen(path, "r+b"))) {
snprintf(path, sizeof(path), "%s%s%s",
repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
fpread = fopen(path, "r+b");
}
if (fpread) {
if (!fgets(description, sizeof(description), fpread))
description[0] = '\0';
fclose(fpread);
}
/* check LICENSE */
haslicense = !git_revparse_single(&obj_license, repo, "HEAD:LICENSE");
/* check README */
hasreadme = !git_revparse_single(&obj_readme, repo, "HEAD:README");
/* read LICENSE */
if (haslicense) {
fp = efopen("license.html", "w+b");
writeheader(fp);
fputs("<pre>\n", fp);
writeblobhtml(fp, (git_blob *)obj_license);
git_object_free(obj_license);
if (ferror(fp))
err(1, "fwrite");
fputs("</pre>\n", fp);
writefooter(fp);
fclose(fp);
}
/* read README */
if (hasreadme) {
fp = efopen("readme.html", "w+b");
writeheader(fp);
fputs("<pre>\n", fp);
writeblobhtml(fp, (git_blob *)obj_readme);
git_object_free(obj_readme);
if (ferror(fp))
err(1, "fwrite");
fputs("</pre>\n", fp);
writefooter(fp);
fclose(fp);
}
fp = efopen("log.html", "w+b");
writeheader(fp);
writelog(fp);
writefooter(fp);
fclose(fp);
fp = efopen("files.html", "w+b");
writeheader(fp);
writefiles(fp);
writefooter(fp);
fclose(fp);
/* Atom feed */
fp = efopen("atom.xml", "w+b");
writeatom(fp);
fclose(fp);
/* cleanup */
git_repository_free(repo);
git_libgit2_shutdown();
return 0;
}
Reference in a new issue View git blame Copy permalink