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nix/src/libfetchers-tests/git-utils.cc
Leandro Reina b1663fa3fb Re-introduce git_attr_get_ext
2024-12-18 18:00:45 +01:00

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#include "git-utils.hh"
#include "file-system.hh"
#include "gmock/gmock.h"
#include <git2/global.h>
#include <git2/repository.h>
#include <git2/types.h>
#include <gtest/gtest.h>
#include "fs-sink.hh"
#include "serialise.hh"
#include "git-lfs-fetch.hh"
namespace nix {
class GitUtilsTest : public ::testing::Test
{
// We use a single repository for all tests.
Path tmpDir;
std::unique_ptr<AutoDelete> delTmpDir;
public:
void SetUp() override
{
tmpDir = createTempDir();
delTmpDir = std::make_unique<AutoDelete>(tmpDir, true);
// Create the repo with libgit2
git_libgit2_init();
git_repository * repo = nullptr;
auto r = git_repository_init(&repo, tmpDir.c_str(), 0);
ASSERT_EQ(r, 0);
git_repository_free(repo);
}
void TearDown() override
{
// Destroy the AutoDelete, triggering removal
// not AutoDelete::reset(), which would cancel the deletion.
delTmpDir.reset();
}
ref<GitRepo> openRepo()
{
return GitRepo::openRepo(tmpDir, true, false);
}
};
void writeString(CreateRegularFileSink & fileSink, std::string contents, bool executable)
{
if (executable)
fileSink.isExecutable();
fileSink.preallocateContents(contents.size());
fileSink(contents);
}
TEST_F(GitUtilsTest, sink_basic)
{
auto repo = openRepo();
auto sink = repo->getFileSystemObjectSink();
// TODO/Question: It seems a little odd that we use the tarball-like convention of requiring a top-level directory
// here
// The sync method does not document this behavior, should probably renamed because it's not very
// general, and I can't imagine that "non-conventional" archives or any other source to be handled by
// this sink.
sink->createDirectory(CanonPath("foo-1.1"));
sink->createRegularFile(CanonPath("foo-1.1/hello"), [](CreateRegularFileSink & fileSink) {
writeString(fileSink, "hello world", false);
});
sink->createRegularFile(CanonPath("foo-1.1/bye"), [](CreateRegularFileSink & fileSink) {
writeString(fileSink, "thanks for all the fish", false);
});
sink->createSymlink(CanonPath("foo-1.1/bye-link"), "bye");
sink->createDirectory(CanonPath("foo-1.1/empty"));
sink->createDirectory(CanonPath("foo-1.1/links"));
sink->createHardlink(CanonPath("foo-1.1/links/foo"), CanonPath("foo-1.1/hello"));
// sink->createHardlink("foo-1.1/links/foo-2", CanonPath("foo-1.1/hello"));
auto result = repo->dereferenceSingletonDirectory(sink->flush());
auto accessor = repo->getAccessor(result, false, false);
auto entries = accessor->readDirectory(CanonPath::root);
ASSERT_EQ(entries.size(), 5);
ASSERT_EQ(accessor->readFile(CanonPath("hello")), "hello world");
ASSERT_EQ(accessor->readFile(CanonPath("bye")), "thanks for all the fish");
ASSERT_EQ(accessor->readLink(CanonPath("bye-link")), "bye");
ASSERT_EQ(accessor->readDirectory(CanonPath("empty")).size(), 0);
ASSERT_EQ(accessor->readFile(CanonPath("links/foo")), "hello world");
};
TEST_F(GitUtilsTest, sink_hardlink)
{
auto repo = openRepo();
auto sink = repo->getFileSystemObjectSink();
sink->createDirectory(CanonPath("foo-1.1"));
sink->createRegularFile(CanonPath("foo-1.1/hello"), [](CreateRegularFileSink & fileSink) {
writeString(fileSink, "hello world", false);
});
try {
sink->createHardlink(CanonPath("foo-1.1/link"), CanonPath("hello"));
FAIL() << "Expected an exception";
} catch (const nix::Error & e) {
ASSERT_THAT(e.msg(), testing::HasSubstr("cannot find hard link target"));
ASSERT_THAT(e.msg(), testing::HasSubstr("/hello"));
ASSERT_THAT(e.msg(), testing::HasSubstr("foo-1.1/link"));
}
};
namespace lfs {
TEST_F(GitUtilsTest, parseGitRemoteUrl)
{
{
GitUrl result = parseGitUrl("git@example.com:path/repo.git");
EXPECT_EQ(result.protocol, "ssh");
EXPECT_EQ(result.user, "git");
EXPECT_EQ(result.host, "example.com");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "path/repo.git");
}
{
GitUrl result = parseGitUrl("example.com:/path/repo.git");
EXPECT_EQ(result.protocol, "ssh");
EXPECT_EQ(result.user, "");
EXPECT_EQ(result.host, "example.com");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "/path/repo.git");
}
{
GitUrl result = parseGitUrl("example.com:path/repo.git");
EXPECT_EQ(result.protocol, "ssh");
EXPECT_EQ(result.user, "");
EXPECT_EQ(result.host, "example.com");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "path/repo.git");
}
{
GitUrl result = parseGitUrl("https://example.com/path/repo.git");
EXPECT_EQ(result.protocol, "https");
EXPECT_EQ(result.user, "");
EXPECT_EQ(result.host, "example.com");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "path/repo.git");
}
{
GitUrl result = parseGitUrl("ssh://git@example.com/path/repo.git");
EXPECT_EQ(result.protocol, "ssh");
EXPECT_EQ(result.user, "git");
EXPECT_EQ(result.host, "example.com");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "path/repo.git");
}
{
GitUrl result = parseGitUrl("ssh://example/path/repo.git");
EXPECT_EQ(result.protocol, "ssh");
EXPECT_EQ(result.user, "");
EXPECT_EQ(result.host, "example");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "path/repo.git");
}
{
GitUrl result = parseGitUrl("http://example.com:8080/path/repo.git");
EXPECT_EQ(result.protocol, "http");
EXPECT_EQ(result.user, "");
EXPECT_EQ(result.host, "example.com");
EXPECT_EQ(result.port, "8080");
EXPECT_EQ(result.path, "path/repo.git");
}
{
GitUrl result = parseGitUrl("invalid-url");
EXPECT_EQ(result.protocol, "");
EXPECT_EQ(result.user, "");
EXPECT_EQ(result.host, "");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "");
}
{
GitUrl result = parseGitUrl("");
EXPECT_EQ(result.protocol, "");
EXPECT_EQ(result.user, "");
EXPECT_EQ(result.host, "");
EXPECT_EQ(result.port, "");
EXPECT_EQ(result.path, "");
}
}
TEST_F(GitUtilsTest, gitUrlToHttp)
{
{
const GitUrl url = parseGitUrl("git@github.com:user/repo.git");
EXPECT_EQ(url.toHttp(), "https://github.com/user/repo.git");
}
{
const GitUrl url = parseGitUrl("https://github.com/user/repo.git");
EXPECT_EQ(url.toHttp(), "https://github.com/user/repo.git");
}
{
const GitUrl url = parseGitUrl("http://github.com/user/repo.git");
EXPECT_EQ(url.toHttp(), "http://github.com/user/repo.git");
}
{
const GitUrl url = parseGitUrl("ssh://git@github.com:22/user/repo.git");
EXPECT_EQ(url.toHttp(), "https://github.com:22/user/repo.git");
}
{
const GitUrl url = parseGitUrl("invalid-url");
EXPECT_EQ(url.toHttp(), "");
}
}
TEST_F(GitUtilsTest, gitUrlToSsh)
{
{
const GitUrl url = parseGitUrl("https://example.com/user/repo.git");
const auto [host, path] = url.toSsh();
EXPECT_EQ(host, "example.com");
EXPECT_EQ(path, "user/repo.git");
}
{
const GitUrl url = parseGitUrl("git@example.com:user/repo.git");
const auto [host, path] = url.toSsh();
EXPECT_EQ(host, "git@example.com");
EXPECT_EQ(path, "user/repo.git");
}
}
} // namespace lfs
} // namespace nix
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