From 57fa14056d6f3380ed6d8c52fd3167b24cc55ff7 Mon Sep 17 00:00:00 2001 From: Rick Wieman Date: Thu, 12 Mar 2015 15:16:16 +0100 Subject: [PATCH] Makes directory pkg compilable on Windows. Also makes the test cases platform independent. Signed-off-by: Rick Wieman --- .../{directory.go => directory_linux.go} | 0 directory/directory_test.go | 55 ++++++++++++------- directory/directory_windows.go | 28 ++++++++++ 3 files changed, 64 insertions(+), 19 deletions(-) rename directory/{directory.go => directory_linux.go} (100%) create mode 100644 directory/directory_windows.go diff --git a/directory/directory.go b/directory/directory_linux.go similarity index 100% rename from directory/directory.go rename to directory/directory_linux.go diff --git a/directory/directory_test.go b/directory/directory_test.go index a137c59..a8da1ac 100644 --- a/directory/directory_test.go +++ b/directory/directory_test.go @@ -1,49 +1,54 @@ package directory import ( + "io/ioutil" "os" "testing" ) // Size of an empty directory should be 0 func TestSizeEmpty(t *testing.T) { + var dir string var err error - if err = os.Mkdir("/tmp/testSizeEmptyDirectory", 0777); err != nil { + if dir, err = ioutil.TempDir(os.TempDir(), "testSizeEmptyDirectory"); err != nil { t.Fatalf("failed to create directory: %s", err) } var size int64 - if size, _ = Size("/tmp/testSizeEmptyDirectory"); size != 0 { + if size, _ = Size(dir); size != 0 { t.Fatalf("empty directory has size: %d", size) } } // Size of a directory with one empty file should be 0 func TestSizeEmptyFile(t *testing.T) { + var dir string var err error - if err = os.Mkdir("/tmp/testSizeEmptyFile", 0777); err != nil { + if dir, err = ioutil.TempDir(os.TempDir(), "testSizeEmptyFile"); err != nil { t.Fatalf("failed to create directory: %s", err) } - if _, err = os.Create("/tmp/testSizeEmptyFile/file"); err != nil { + var file *os.File + if file, err = ioutil.TempFile(dir, "file"); err != nil { t.Fatalf("failed to create file: %s", err) } var size int64 - if size, _ = Size("/tmp/testSizeEmptyFile"); size != 0 { + if size, _ = Size(file.Name()); size != 0 { t.Fatalf("directory with one file has size: %d", size) } } // Size of a directory with one 5-byte file should be 5 func TestSizeNonemptyFile(t *testing.T) { + var dir string var err error - if err = os.Mkdir("/tmp/testSizeNonemptyFile", 0777); err != nil { + if dir, err = ioutil.TempDir(os.TempDir(), "testSizeNonemptyFile"); err != nil { t.Fatalf("failed to create directory: %s", err) } var file *os.File - if file, err = os.Create("/tmp/testSizeNonemptyFile/file"); err != nil { + if file, err = ioutil.TempFile(dir, "file"); err != nil { t.Fatalf("failed to create file: %s", err) } @@ -51,33 +56,41 @@ func TestSizeNonemptyFile(t *testing.T) { file.Write(d) var size int64 - if size, _ = Size("/tmp/testSizeNonemptyFile"); size != 5 { + if size, _ = Size(file.Name()); size != 5 { t.Fatalf("directory with one 5-byte file has size: %d", size) } } // Size of a directory with one empty directory should be 0 func TestSizeNestedDirectoryEmpty(t *testing.T) { + var dir string var err error - if err = os.MkdirAll("/tmp/testSizeNestedDirectoryEmpty/nested", 0777); err != nil { + if dir, err = ioutil.TempDir(os.TempDir(), "testSizeNestedDirectoryEmpty"); err != nil { t.Fatalf("failed to create directory: %s", err) } + if dir, err = ioutil.TempDir(dir, "nested"); err != nil { + t.Fatalf("failed to create nested directory: %s", err) + } var size int64 - if size, _ = Size("/tmp/testSizeNestedDirectoryEmpty"); size != 0 { + if size, _ = Size(dir); size != 0 { t.Fatalf("directory with one empty directory has size: %d", size) } } // Test directory with 1 file and 1 empty directory func TestSizeFileAndNestedDirectoryEmpty(t *testing.T) { + var dir string var err error - if err = os.MkdirAll("/tmp/testSizeFileAndNestedDirectoryEmpty/nested", 0777); err != nil { + if dir, err = ioutil.TempDir(os.TempDir(), "testSizeFileAndNestedDirectoryEmpty"); err != nil { t.Fatalf("failed to create directory: %s", err) } + if dir, err = ioutil.TempDir(dir, "nested"); err != nil { + t.Fatalf("failed to create nested directory: %s", err) + } var file *os.File - if file, err = os.Create("/tmp/testSizeFileAndNestedDirectoryEmpty/file"); err != nil { + if file, err = ioutil.TempFile(dir, "file"); err != nil { t.Fatalf("failed to create file: %s", err) } @@ -85,20 +98,24 @@ func TestSizeFileAndNestedDirectoryEmpty(t *testing.T) { file.Write(d) var size int64 - if size, _ = Size("/tmp/testSizeFileAndNestedDirectoryEmpty"); size != 6 { + if size, _ = Size(dir); size != 6 { t.Fatalf("directory with 6-byte file and empty directory has size: %d", size) } } // Test directory with 1 file and 1 non-empty directory func TestSizeFileAndNestedDirectoryNonempty(t *testing.T) { + var dir, dirNested string var err error - if err = os.MkdirAll("/tmp/testSizeFileAndNestedDirectoryEmpty/nested", 0777); err != nil { + if dir, err = ioutil.TempDir(os.TempDir(), "TestSizeFileAndNestedDirectoryNonempty"); err != nil { t.Fatalf("failed to create directory: %s", err) } + if dirNested, err = ioutil.TempDir(dir, "nested"); err != nil { + t.Fatalf("failed to create nested directory: %s", err) + } var file *os.File - if file, err = os.Create("/tmp/testSizeFileAndNestedDirectoryEmpty/file"); err != nil { + if file, err = ioutil.TempFile(dir, "file"); err != nil { t.Fatalf("failed to create file: %s", err) } @@ -106,15 +123,15 @@ func TestSizeFileAndNestedDirectoryNonempty(t *testing.T) { file.Write(data) var nestedFile *os.File - if nestedFile, err = os.Create("/tmp/testSizeFileAndNestedDirectoryEmpty/nested/file"); err != nil { - t.Fatalf("failed to create file: %s", err) + if nestedFile, err = ioutil.TempFile(dirNested, "file"); err != nil { + t.Fatalf("failed to create file in nested directory: %s", err) } nestedData := []byte{100, 111, 99, 107, 101, 114} nestedFile.Write(nestedData) var size int64 - if size, _ = Size("/tmp/testSizeFileAndNestedDirectoryEmpty"); size != 12 { - t.Fatalf("directory with 6-byte file and empty directory has size: %d", size) + if size, _ = Size(dir); size != 12 { + t.Fatalf("directory with 6-byte file and nested directory with 6-byte file has size: %d", size) } } diff --git a/directory/directory_windows.go b/directory/directory_windows.go new file mode 100644 index 0000000..7a9f8cb --- /dev/null +++ b/directory/directory_windows.go @@ -0,0 +1,28 @@ +// +build windows + +package directory + +import ( + "os" + "path/filepath" +) + +// Size walks a directory tree and returns its total size in bytes. +func Size(dir string) (size int64, err error) { + err = filepath.Walk(dir, func(d string, fileInfo os.FileInfo, e error) error { + // Ignore directory sizes + if fileInfo == nil { + return nil + } + + s := fileInfo.Size() + if fileInfo.IsDir() || s == 0 { + return nil + } + + size += s + + return nil + }) + return +}