Initial commit

Not a lot of stuff, hard coded paths, tests against /usr/portage

1 files changed, 174 insertions, 0 deletions

diff --git a/src/repo.cpp b/src/repo.cpp
new file mode 100644
index 0000000..299f2ce
--- /dev/null
+++ b/src/repo.cpp
@@ -0,0 +1,174 @@
+#include <Ice/ObjectAdapter.h>
+#include <sys/stat.h>
+#include "repo.h"
+#include "blob.h"
+#include "dir.h"
+
+GitFS::Repo::Repo() :
+	repo(Git::RepositoryOpenBare("/usr/portage/.git")),
+	commit(Git::CommitLookup(repo, Git::OidParse("97a435f30472eb941f96234d274b3aeb492e2793"))),
+	tree(Git::TreeLookup(repo, *git_commit_tree_id(commit.get())))
+{
+}
+
+void
+GitFS::Repo::disconnect(const ::Ice::Current& current)
+{
+	current.adapter->remove(current.id);
+}
+
+
+NetFS::DirectoryPrxPtr
+GitFS::Repo::opendir(ReqEnv, ::std::string path, const ::Ice::Current& ice)
+{
+	return Ice::uncheckedCast<NetFS::DirectoryV2Prx>(ice.adapter->addWithUUID(
+				std::make_shared<Directory>(tree, path)));
+}
+
+
+NetFS::VFS
+GitFS::Repo::statfs(ReqEnv, ::std::string, const ::Ice::Current&)
+{
+	return {};
+}
+
+
+int
+GitFS::Repo::access(ReqEnv, ::std::string path, int mode, const ::Ice::Current&)
+{
+	if (mode & W_OK) return EACCES;
+	if (path.empty()) return EINVAL;
+	if (path == "/") return 0;
+
+	try {
+		auto e = Git::TreeEntryByPath(tree, path);
+		const auto emode = git_tree_entry_filemode(e.get());
+
+		if (S_ISDIR(emode)) return 0;
+		if (mode & R_OK && !(S_IRUSR & emode)) return EACCES;
+		if (mode & X_OK && !(S_IXUSR & emode)) return EACCES;
+
+		return 0;
+	}
+	catch (const Git::Error & e) {
+		if (e.err == GIT_ENOTFOUND) {
+			return ENOENT;
+		}
+		throw NetFS::SystemError(EIO);
+	}
+}
+
+
+NetFS::Attr
+GitFS::Repo::getattr(ReqEnv, ::std::string path, const ::Ice::Current&)
+{
+	NetFS::Attr a {};
+	(void)path;
+	a.ctime = a.atime = a.mtime = git_commit_time(commit.get());
+	return a;
+}
+
+
+::std::string
+GitFS::Repo::readlink(ReqEnv, ::std::string path, const ::Ice::Current&)
+{
+	auto e = Git::TreeEntryByPath(tree, path);
+	if (!e) throw NetFS::SystemError(ENOENT);
+	const auto emode = git_tree_entry_filemode(e.get());
+	if (!S_ISLNK(emode)) throw NetFS::SystemError(EINVAL);
+	return {};
+}
+
+
+NetFS::FilePrxPtr
+GitFS::Repo::open(ReqEnv, ::std::string path, int, const ::Ice::Current& ice)
+{
+	return Ice::uncheckedCast<NetFS::FilePrx>(ice.adapter->addWithUUID(
+				std::make_shared<Blob>(repo, Git::TreeEntryByPath(tree, path))));
+}
+
+
+NetFS::FilePrxPtr
+GitFS::Repo::create(ReqEnv, ::std::string, int, int, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::truncate(ReqEnv, ::std::string, long long int, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::unlink(ReqEnv, ::std::string, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::mkdir(ReqEnv, ::std::string, int, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::rmdir(ReqEnv, ::std::string, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::mknod(ReqEnv, ::std::string, int, int, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::symlink(ReqEnv, ::std::string, ::std::string, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::link(ReqEnv, ::std::string, ::std::string, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::rename(ReqEnv, ::std::string, ::std::string, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::chmod(ReqEnv, ::std::string, int, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::chown(ReqEnv, ::std::string, int, int, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+
+void
+GitFS::Repo::utimens(ReqEnv, ::std::string, long long int, long long int, long long int, long long int, const ::Ice::Current&)
+{
+	throw NetFS::SystemError(EROFS);
+}
+
+