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| #include <err.h>
#include <stdio.h>
#include <git2.h>
#include <string.h>
#include <sys/stat.h>
#include <stdbool.h>
#define PATH_MAX 4096
#define DOMAIN "https://git.alexw.nyc"
struct Config {
char *output_path;
char *files_path;
char *repo_name;
char *description;
};
const char header[] =
" <html lang='en'>\n"
" <head>\n"
" <meta charset='utf-8'>\n"
" <meta name='viewport' content='width=device-width'>\n"
" <meta name='author' content='Alex Wennerberg' />\n"
" <link rel='stylesheet' type='text/css' href='/style.css'>\n"
" <link rel='icon' type='image/png' href='/icon.png'>\n"
" <title>git.alexw.nyc</title>\n"
" <style>.line-num{text-decoration:none;color:#555;}.icon{width:16px;height:16px;image-rendering: pixelated;padding-right:4px;}.listing > div{margin-bottom:4px;}a.link{text-decoration:none;}.repo-name{padding-right:32px;}</style>\n"
" </head>\n"
" <body>\n"
" <header>\n"
" <table><tr><td><a href='/index.html'><img src='/icon.png' width=20 /></a></td>\n"
" <td>git.alexw.nyc</td>\n"
" <td><a href='//alexw.nyc/index.html'>home</a></td>\n"
" <td><a href='//alexw.nyc/about.html'>about</a></td>\n"
" <td><a href='//git.alexw.nyc'>git</a></td>\n"
" <td><a href='//alexw.nyc/garden.html'>garden</a></td>\n"
" </tr></table>\n"
" </header>";
const char footer[] =
" <hr><footer>\n"
" <a href='https://alexw.nyc/tech/infra.html'>live</a> from beautiful brooklyn, new york\n"
" <a href='mailto:alex@alexwennerberg.com'>email</a>\n"
" <a href='https://merveilles.town/@aw'>mastodon</a>\n"
" </footer>\n"
" </body>\n"
"</html>\n";
git_repository *repo;
char* basename(char *path)
{
char *base = strrchr(path, '/');
return base ? base + 1 : path;
}
int lines(const char *s) {
int lines = 0;
while (*s) {
if (*s == '\n') {
lines++;
}
s++;
}
return lines;
}
void join_paths(char* path, const char* path1, const char* path2) {
char tmp[PATH_MAX];
int n = snprintf(tmp, PATH_MAX, "%s%s%s", path1, path1[0] && path1[strlen(path1) - 1] != '/' ? "/" : "", path2);
if (n >= PATH_MAX) {
errx(1, "path truncated");
}
strcpy(path, tmp);
}
int html_encode(FILE *f, const char *s) {
while(*s) {
switch(*s) {
case '<': fputs("<", f); break;
case '>': fputs(">", f); break;
case '\'': fputs("'", f); break;
case '&': fputs("&", f); break;
case '"': fputs(""", f); break;
default: fputc(*s, f); break;
}
s++;
}
}
void intro(FILE *f, const char *repo_name, const char *desc) {
fprintf(f, "<table style='padding-bottom:16px'><tbody><tr><td><img src='/icons/image.png' style='width:32px;height:32px;image-rendering: pixelated'></td>");
fprintf(f, "<td><div><b>%s</b> - %s</div><div>git clone %s/%s.git</div></td></tr></tbody></table>\n", repo_name, desc, DOMAIN, repo_name);
}
void print_file(FILE *f, git_blob* blob, bool lines_number) {
const void *content = git_blob_rawcontent(blob);
fprintf(f, "<div style='overflow-x:scroll;'><table><tbody><tr>");
if (lines_number) {
fprintf(f, "<td><pre>");
for (int i = 1; i <= lines(content); i++) {
fprintf(f, "<a href='#L%d' class='line-num' id='L%d'>%5d</a>\n", i, i, i);
}
fprintf(f, "</pre></td>");
}
fprintf(f, "<td><pre style='padding-left:8px'>");
html_encode(f, (char *) content);
fprintf(f, "</pre></td></tr></tbody></table></div>");
}
int process_file(const git_tree_entry *file, const char *root, const char *name, const struct Config* conf) {
git_blob* blob = NULL;
if (git_blob_lookup(&blob, repo, git_tree_entry_id(file)) != 0) {
printf("cannot get blob\n");
}
char path[PATH_MAX];
sprintf(path, "%s/%s/%s.html", conf->files_path, root, name);
FILE *f = fopen(path, "w");
if (f == NULL) {
printf("couldnt open file %s\n", path);
return 0;
}
fprintf(f, "%s", header);
if (git_blob_is_binary(blob)) {
fputs("<p>binary file</p>", f);
} else {
print_file(f, blob, true);
}
fprintf(f, "%s", footer);
fclose(f);
git_blob_free(blob);
}
void root_readme(FILE* f, const git_tree* tree) {
fprintf(f, "<hr>");
const git_tree_entry* readme = git_tree_entry_byname(tree, "README");
if (readme != NULL) {
git_blob* blob = NULL;
if (git_blob_lookup(&blob, repo, git_tree_entry_id(readme)) != 0) {
printf("cannot get blob\n");
}
print_file(f, blob, false);
}
}
int process_tree(const git_tree* tree, const char* tree_path, const struct Config* conf, bool is_root)
{
char dir_path[PATH_MAX];
join_paths(dir_path, conf->files_path, tree_path);
mkdir(dir_path, 0755);
char index_path[PATH_MAX];
if (is_root) {
sprintf(index_path, "%s/index.html", conf->output_path);
} else {
join_paths(index_path, conf->files_path, tree_path);
strcat(index_path, ".html");
}
FILE *f = fopen(index_path, "w");
fprintf(f, "%s", header);
intro(f, conf->repo_name, conf->description);
fprintf(f, "<div class='listing'>");
size_t child_count = git_tree_entrycount(tree);
for (size_t i = 0; i < child_count; i++) {
const git_tree_entry* child = git_tree_entry_byindex(tree, i);
git_otype child_type = git_tree_entry_type(child);
if (child_type == GIT_OBJECT_TREE) {
const char *child_name = git_tree_entry_name(child);
char child_path[PATH_MAX];
join_paths(child_path, tree_path, child_name);
fprintf(f, "<div><img src='/icons/dir.png' class='icon'><a class='link' href='/%s/%s/%s.html'>%s</a></div>", conf->repo_name, "files", child_path, child_name);
git_tree *child_tree = NULL;
if (git_tree_lookup(&child_tree, repo, git_tree_entry_id(child))) {
printf("couldnt find tree for %s\n", child_path);
}
process_tree(child_tree, child_path, conf, false);
continue;
}
}
for (size_t i = 0; i < child_count; i++) {
const git_tree_entry* child = git_tree_entry_byindex(tree, i);
git_otype child_type = git_tree_entry_type(child);
if (child_type == GIT_OBJECT_BLOB) {
const char *child_name = git_tree_entry_name(child);
char child_path[PATH_MAX];
join_paths(child_path, tree_path, child_name);
fprintf(f, "<div><img src='/icons/text.png' class='icon'><a class='link' href='/%s/%s/%s.html'>%s</a></div>", conf->repo_name, "files", child_path, child_name);
process_file(child, tree_path, child_name, conf);
continue;
}
}
if (is_root) {
root_readme(f, tree);
}
fprintf(f, "</div>");
fprintf(f, "%s", footer);
return 0;
}
void remove_ext(char* repo_name) {
char *dot = strrchr(repo_name, '.');
if (dot) {
dot[0] = 0;
}
}
int main(int argc, char *argv[]) {
git_libgit2_init();
if (argc < 3) {
printf("usage: gituwa <repo_path> <output_path> <description>\n");
return 0;
}
char files_path[PATH_MAX];
join_paths(files_path, argv[2], "files");
char description[PATH_MAX] = "";
for (int i = 3; i < argc; i++) {
strncat(description, argv[i], PATH_MAX - strlen(description) - 1);
if (i < argc - 1) {
strncat(description, " ", PATH_MAX - strlen(description) - 1);
}
}
if (git_repository_open(&repo, argv[1])) {
printf("cannot open repository %s\n", git_error_last()->message);
}
struct Config conf = {
.output_path = argv[2],
.files_path = files_path,
.repo_name = basename(argv[1]),
.description = description
};
remove_ext(conf.repo_name);
printf("%s", conf.repo_name);
mkdir(conf.output_path, 0755);
mkdir(conf.files_path, 0755);
git_object *head;
git_revparse_single(&head, repo, "HEAD");
git_commit *commit = (git_commit*)head;
git_tree* tree = NULL;
if (git_commit_tree(&tree, commit) != 0) {
printf("cannot get tree\n");
}
process_tree(tree, "", &conf, true);
git_tree_free(tree);
git_libgit2_shutdown();
return 0;
}
|
