add support for streaming the file content

internal/resource/file.go

@@ -22,7 +22,11 @@ import (
 	"gitea.rosskeen.house/rosskeen.house/machine"
 	"decl/internal/codec"
 	"decl/internal/iofilter"
+	"decl/internal/data"
+	"decl/internal/folio"
+	"decl/internal/transport"
 	"strings"
+	"embed"
 )
 
 // Describes the type of file the resource represents
@@ -44,10 +48,22 @@ var ErrInvalidFileMode error = errors.New("Invalid Mode")
 var ErrInvalidFileOwner error = errors.New("Unknown User")
 var ErrInvalidFileGroup error = errors.New("Unknown Group")
 
+type FileMode string
+
 func init() {
-	ResourceTypes.Register([]string{"file"}, func(u *url.URL) Resource {
+	folio.DocumentRegistry.ResourceTypes.Register([]string{"file"}, func(u *url.URL) data.Resource {
 		f := NewFile()
+		f.parsedURI = u
+		//f.Uri.SetURL(u)
 		f.Path = filepath.Join(u.Hostname(), u.Path)
+		f.exttype, f.fileext = f.Uri.Extension()
+
+		slog.Info("folio.DocumentRegistry.ResourceTypes.Register()()", "url", u, "file", f)
+/*
+		if absPath, err := filepath.Abs(f.Path); err == nil {
+			f.Filesystem = os.DirFS(filepath.Dir(absPath))
+		}
+*/
 		return f
 	})
 }
@@ -62,27 +78,36 @@ The `SerializeContent` the flag allows forcing the content to be serialized in t
 
 */
 type File struct {
+	Uri folio.URI `json:"uri,omitempty" yaml:"uri,omitempty"`
+	parsedURI *url.URL `json:"-" yaml:"-"`
+	Filesystem fs.FS `json:"-" yaml:"-"`
+
+	exttype string `json:"-" yaml:"-"`
+	fileext string `json:"-" yaml:"-"`
 	stater machine.Stater `json:"-" yaml:"-"`
 	normalizePath bool `json:"-" yaml:"-"`
+	absPath string `json:"-" yaml:"-"`
+	basePath int `json:"-" yaml:"-"`
+
 	Path   string `json:"path" yaml:"path"`
 	Owner  string `json:"owner" yaml:"owner"`
 	Group  string `json:"group" yaml:"group"`
-	Mode   string `json:"mode" yaml:"mode"`
+	Mode   FileMode `json:"mode" yaml:"mode"`
 
 	Atime time.Time `json:"atime,omitempty" yaml:"atime,omitempty"`
 	Ctime time.Time `json:"ctime,omitempty" yaml:"ctime,omitempty"`
 	Mtime time.Time `json:"mtime,omitempty" yaml:"mtime,omitempty"`
 
 	Content  string   `json:"content,omitempty" yaml:"content,omitempty"`
-	ContentSourceRef  ResourceReference   `json:"sourceref,omitempty" yaml:"sourceref,omitempty"`
+	ContentSourceRef  folio.ResourceReference   `json:"sourceref,omitempty" yaml:"sourceref,omitempty"`
 	Sha256   string   `json:"sha256,omitempty" yaml:"sha256,omitempty"`
 	Size     int64    `json:"size,omitempty" yaml:"size,omitempty"`
 	Target   string   `json:"target,omitempty" yaml:"target,omitempty"`
 	FileType FileType `json:"filetype" yaml:"filetype"`
 	State    string   `json:"state,omitempty" yaml:"state,omitempty"`
 	SerializeContent bool `json:"serializecontent,omitempty" yaml:"serializecontent,omitempty"`
-	config ConfigurationValueGetter
-	Resources ResourceMapper `json:"-" yaml:"-"`
+	config data.ConfigurationValueGetter
+	Resources data.ResourceMapper `json:"-" yaml:"-"`
 }
 
 type ResourceFileInfo struct {
@@ -103,13 +128,25 @@ func NewNormalizedFile() *File {
 	return f
 }
 
-func (f *File) SetResourceMapper(resources ResourceMapper) {
+func (f *File) ContentType() string {
+	if f.parsedURI.Scheme != "file" {
+		return f.parsedURI.Scheme
+	}
+	return f.exttype
+}
+
+func (f *File) SetResourceMapper(resources data.ResourceMapper) {
 	f.Resources = resources
 }
 
-func (f *File) Clone() Resource {
+func (f *File) Clone() data.Resource {
 	return &File {
+		Uri: f.Uri,
+		parsedURI: f.parsedURI,
+		exttype: f.exttype,
+		fileext: f.fileext,
 		normalizePath: f.normalizePath,
+		absPath: f.absPath,
 		Path: f.Path,
 		Owner: f.Owner,
 		Group: f.Group,
@@ -181,26 +218,69 @@ func (f *File) Notify(m *machine.EventMessage) {
 	}
 }
 
+func (f *File) PathNormalization(flag bool) {
+	f.normalizePath = flag
+}
+
+func (f *File) FilePath() string {
+	return f.Path
+}
+
+func (f *File) SetFS(fsys fs.FS) {
+	f.Filesystem = fsys
+}
+
 func (f *File) URI() string {
 	return fmt.Sprintf("file://%s", f.Path)
 }
 
-func (f *File) SetURI(uri string) error {
-	resourceUri, e := url.Parse(uri)
-	if e == nil {
-		if resourceUri.Scheme == "file" {
-			f.Path = filepath.Join(resourceUri.Hostname(), resourceUri.Path)
-			if err := f.NormalizePath(); err != nil {
-				return err
-			}
-		} else {
-			e = fmt.Errorf("%w: %s is not a file", ErrInvalidResourceURI, uri)
-		}
-	}
-	return e
+func (f *File) RelativePath() string {
+	return f.Path[f.basePath:]
 }
 
-func (f *File) UseConfig(config ConfigurationValueGetter) {
+func (f *File) SetBasePath(index int) {
+	if index < len(f.Path) {
+		f.basePath = index
+	}
+}
+
+func (f *File) SetURI(uri string) (err error) {
+	slog.Info("File.SetURI()", "uri", uri, "file", f, "parsed", f.parsedURI)
+	f.SetURIFromString(uri)
+	err = f.SetParsedURI(f.Uri.Parse())
+	return
+}
+
+func (f *File) SetURIFromString(uri string) {
+	f.Uri = folio.URI(uri)
+	f.exttype, f.fileext = f.Uri.Extension()
+}
+
+func (f *File) SetParsedURI(u *url.URL) (err error) {
+	if u != nil {
+		if u.Scheme == "" {
+			u.Scheme = "file"
+			f.Uri = ""
+		}
+		if f.Uri.IsEmpty()  {
+			f.SetURIFromString(u.String())
+		}
+		slog.Info("File.SetParsedURI()", "parsed", u, "path", f.Path)
+		f.parsedURI = u
+		if f.parsedURI.Scheme == "file" {
+			f.Path = filepath.Join(f.parsedURI.Hostname(), f.parsedURI.Path)
+			slog.Info("File.SetParsedURI()", "path", f.Path)
+			if err = f.NormalizePath(); err != nil {
+				return
+			}
+			return
+		}
+	}
+	err = fmt.Errorf("%w: %s is not a file", ErrInvalidResourceURI, f.Uri)
+	return
+}
+
+func (f *File) UseConfig(config data.ConfigurationValueGetter) {
 	f.config = config
 }
 
@@ -229,15 +309,34 @@ func (f *File) Apply() error {
 	return nil
 }
 
-func (f *File) LoadDecl(yamlResourceDeclaration string) (err error) {
-	d := codec.NewYAMLStringDecoder(yamlResourceDeclaration)
-	err = d.Decode(f)
+func (f *File) Load(docData []byte, format codec.Format) (err error) {
+	err = format.StringDecoder(string(docData)).Decode(f)
 	if err == nil {
 		f.UpdateContentAttributes()
 	}
 	return
 }
 
+func (f *File) LoadReader(r io.ReadCloser, format codec.Format) (err error) {
+	err = format.Decoder(r).Decode(f)
+	if err == nil {
+		f.UpdateContentAttributes()
+	}
+	return
+}
+
+func (f *File) LoadString(docData string, format codec.Format) (err error) {
+	err = format.StringDecoder(docData).Decode(f)
+	if err == nil {
+		f.UpdateContentAttributes()
+	}
+	return
+}
+
+func (f *File) LoadDecl(yamlResourceDeclaration string) (err error) {
+	return f.LoadString(yamlResourceDeclaration, codec.FormatYaml)
+}
+
 func (f *File) ResolveId(ctx context.Context) string {
 	if e := f.NormalizePath(); e != nil {
 		panic(e)
@@ -245,20 +344,34 @@ func (f *File) ResolveId(ctx context.Context) string {
 	return f.Path
 }
 
-func (f *File) NormalizePath() error {
+func (f *File) NormalizePath() (err error) {
 	if f.config != nil {
 		if prefixPath, configErr := f.config.GetValue("prefix"); configErr == nil {
 			f.Path = filepath.Join(prefixPath.(string), f.Path)
 		}
 	}
-	if f.normalizePath {
-		filePath, fileAbsErr := filepath.Abs(f.Path)
-		if fileAbsErr == nil {
-			f.Path = filePath
-		}
-		return fileAbsErr
+	if f.absPath, err = filepath.Abs(f.Path); err == nil && f.normalizePath {
+		f.Path = f.absPath
 	}
-	return nil
+	return
+}
+
+func (f *File) GetContentSourceRef() string {
+	return string(f.ContentSourceRef)
+}
+
+func (f *File) SetContentSourceRef(uri string) {
+	f.Size = 0
+	f.ContentSourceRef = folio.ResourceReference(uri)
+}
+
+func (f *File) Stat() (info fs.FileInfo, err error) {
+	if _, ok := f.Filesystem.(embed.FS); ok {
+		info, err = fs.Stat(f.Filesystem, f.Path)
+	} else {
+		info, err = os.Lstat(f.absPath)
+	}
+	return
 }
 
 func (f *File) FileInfo() fs.FileInfo {
@@ -267,7 +380,7 @@ func (f *File) FileInfo() fs.FileInfo {
 
 func (f *ResourceFileInfo) Name() string {
 //	return filepath.Base(f.resource.Path)
-	return f.resource.Path
+	return f.resource.RelativePath()
 }
 
 func (f *ResourceFileInfo) Size() int64 {
@@ -275,8 +388,8 @@ func (f *ResourceFileInfo) Size() int64 {
 }
 
 func (f *ResourceFileInfo) Mode() (mode os.FileMode) {
-	if fileMode, fileModeErr := strconv.ParseInt(f.resource.Mode, 8, 64); fileModeErr == nil {
-		mode |= os.FileMode(fileMode)
+	if fileMode, fileModeErr := f.resource.Mode.GetMode(); fileModeErr == nil {
+		mode |= fileMode
 	} else {
 		panic(fileModeErr)
 	}
@@ -306,12 +419,12 @@ func (f *File) Create(ctx context.Context) error {
 	if gidErr != nil {
 		return gidErr
 	}
-	mode, modeErr := strconv.ParseInt(f.Mode, 8, 64)
+
+	mode, modeErr := f.Mode.GetMode()
 	if modeErr != nil {
-		return fmt.Errorf("%w: invalid mode %d", ErrInvalidFileMode, mode)
+		return modeErr
 	}
-	//e := os.Stat(f.path)
-	//if os.IsNotExist(e) {
+
 	switch f.FileType {
 	case SymbolicLinkFile:
 		linkErr := os.Symlink(f.Target, f.Path)
@@ -319,7 +432,7 @@ func (f *File) Create(ctx context.Context) error {
 			return linkErr
 		}
 	case DirectoryFile:
-		if mkdirErr := os.MkdirAll(f.Path, os.FileMode(mode)); mkdirErr != nil {
+		if mkdirErr := os.MkdirAll(f.Path, mode); mkdirErr != nil {
 			return mkdirErr
 		}
 	default:
@@ -351,19 +464,13 @@ func (f *File) Create(ctx context.Context) error {
 			return e
 		}
 		defer createdFile.Close()
-		if chmodErr := createdFile.Chmod(os.FileMode(mode)); chmodErr != nil {
+		if chmodErr := createdFile.Chmod(mode); chmodErr != nil {
 			return chmodErr
 		}
 		_, writeErr := io.CopyBuffer(createdFile, sumReadData, copyBuffer)
 		if writeErr != nil {
 			return fmt.Errorf("File.Create(): CopyBuffer failed %v %v: %w", createdFile, contentReader, writeErr)
 		}
-/*
-		_, writeErr := createdFile.Write([]byte(f.Content))
-		if writeErr != nil {
-			return writeErr
-		}
-*/
 
 		f.Sha256 = fmt.Sprintf("%x", hash.Sum(nil))
 		if !f.Mtime.IsZero() && !f.Atime.IsZero() {
@@ -380,6 +487,10 @@ func (f *File) Create(ctx context.Context) error {
 	return nil
 }
 
+func (f *File) Update(ctx context.Context) error {
+	return f.Create(ctx)
+}
+
 func (f *File) Delete(ctx context.Context) error {
 	return os.Remove(f.Path)
 }
@@ -389,6 +500,10 @@ func (f *File) UpdateContentAttributes() {
 	f.Sha256 = fmt.Sprintf("%x", sha256.Sum256([]byte(f.Content)))
 }
 
+func (f *File) SetFileInfo(info os.FileInfo) error {
+	return f.UpdateAttributesFromFileInfo(info)
+}
+
 func (f *File) UpdateAttributesFromFileInfo(info os.FileInfo) error {
 	if info != nil {
 		f.Mtime = info.ModTime()
@@ -414,21 +529,61 @@ func (f *File) UpdateAttributesFromFileInfo(info os.FileInfo) error {
 			}
 		}
 		f.Size = info.Size()
-		f.Mode = fmt.Sprintf("%04o", info.Mode().Perm())
+		f.Mode = FileMode(fmt.Sprintf("%04o", info.Mode().Perm()))
 		f.FileType.SetMode(info.Mode())
 		return nil
 	}
 	return ErrInvalidFileInfo
 }
 
-func (f *File) ReadStat() error {
-	info, e := os.Lstat(f.Path)
-	if e != nil {
-		f.State = "absent"
-		return e
+
+func (f *File) ContentSourceRefStat() (info fs.FileInfo) {
+	if len(f.ContentSourceRef) > 0 {
+		rs, _ := f.ContentReaderStream()
+		info, _ = rs.Stat()
+		rs.Close()
+	}
+	return
+}
+
+func (f *File) ReadStat() (err error) {
+	var info fs.FileInfo
+	slog.Info("ReadStat()", "filesystem", f.Filesystem, "path", f.Path)
+
+	info, err = f.Stat()
+
+	slog.Info("ReadStat()", "filesystem", f.Filesystem, "path", f.Path, "info", info, "error", err)
+
+	if err == nil {
+		_ = f.SetFileInfo(info)
+	} else {
+		if refStat := f.ContentSourceRefStat(); refStat != nil {
+			_ = f.SetFileInfo(refStat)
+			//f.Size = refStat.Size()
+			err = nil
+		}
+		// XXX compare the mod times and set state to outdated
 	}
 
-	return f.UpdateAttributesFromFileInfo(info)
+
+	slog.Info("ReadStat()", "stat", info, "path", f.Path)
+	if err != nil {
+		f.State = "absent"
+		return
+	}
+
+	return
+}
+
+func (f *File) open() (file fs.File, err error) {
+	slog.Info("open()", "file", f.Path, "fs", f.Filesystem)
+	if _, ok := f.Filesystem.(embed.FS); ok {
+		file, err = f.Filesystem.Open(f.Path)
+	} else {
+		file, err = os.Open(f.Path)
+	}
+	slog.Info("open()", "file", f.Path, "error", err)
+	return
 }
 
 func (f *File) Read(ctx context.Context) ([]byte, error) {
@@ -444,7 +599,8 @@ func (f *File) Read(ctx context.Context) ([]byte, error) {
 	switch f.FileType {
 	case RegularFile:
 		if len(f.ContentSourceRef) == 0 || f.SerializeContent {
-			file, fileErr := os.Open(f.Path)
+			//file, fileErr := os.Open(f.Path)
+			file, fileErr := f.open()
 			if fileErr != nil {
 				panic(fileErr)
 			}
@@ -467,13 +623,85 @@ func (f *File) Read(ctx context.Context) ([]byte, error) {
 	return yaml.Marshal(f)
 }
 
+// set up reader for source content
+func (f *File) readThru() (contentReader io.ReadCloser, err error) {
+	if len(f.ContentSourceRef) != 0 {
+		contentReader, err = f.ContentSourceRef.Lookup(nil).ContentReaderStream()
+		contentReader.(*transport.Reader).SetGzip(false)
+		slog.Info("File.readThru()", "reader", contentReader)
+	} else {
+		if len(f.Content) != 0 {
+			contentReader = io.NopCloser(strings.NewReader(f.Content))
+		} else {
+			//contentReader, err = os.Open(f.Path)
+			contentReader, err = f.open()
+		}
+	}
+	contentReader = f.UpdateContentAttributesFromReader(contentReader)
+	return
+}
+
+func (f *File) UpdateContentAttributesFromReader(reader io.ReadCloser) io.ReadCloser {
+	var content strings.Builder
+	hash := sha256.New()
+	f.Size = 0
+	f.Content = ""
+	f.Sha256 = ""
+	return iofilter.NewReader(reader, func(p []byte, readn int, readerr error) (n int, err error) {
+		hash.Write(p[:readn])
+		f.Sha256 = fmt.Sprintf("%x", hash.Sum(nil))
+		f.Size += int64(readn)
+		if len(f.ContentSourceRef) == 0 || f.SerializeContent {
+			content.Write(p[:readn])
+			f.Content = content.String()
+		}
+		return readn, readerr
+	})
+}
+
 func (f *File) SetContent(r io.Reader) error {
 	fileContent, ioErr := io.ReadAll(r)
 	f.Content = string(fileContent)
-	f.Sha256 = fmt.Sprintf("%x", sha256.Sum256(fileContent))
+	f.UpdateContentAttributes()
 	return ioErr
 }
 
+func (f *File) GetContent(w io.Writer) (contentReader io.ReadCloser, err error) {
+	slog.Info("File.GetContent()", "content", len(f.Content), "sourceref", f.ContentSourceRef)
+
+	switch f.FileType {
+	case RegularFile:
+		contentReader, err = f.readThru()
+
+		if w != nil {
+			copyBuffer := make([]byte, 32 * 1024)
+			_, writeErr := io.CopyBuffer(w, contentReader, copyBuffer)
+			if writeErr != nil {
+				return nil, fmt.Errorf("File.GetContent(): CopyBuffer failed %v %v: %w", w, contentReader, writeErr)
+			}
+			return nil, nil
+		}
+	}
+
+	return
+}
+
+func (f *File) ContentReaderStream() (*transport.Reader, error) {
+	if len(f.Content) == 0 && len(f.ContentSourceRef) != 0 {
+		return f.ContentSourceRef.Lookup(nil).ContentReaderStream()
+	}
+	return nil, fmt.Errorf("Cannot provide transport reader for string content")
+}
+
+// ContentWriterStream() would not provide a mechanism to keep the in-memory state up-to-date
+func (f *File) ContentWriterStream() (*transport.Writer, error) {
+	if len(f.Content) == 0 && len(f.ContentSourceRef) != 0 {
+		return f.ContentSourceRef.Lookup(nil).ContentWriterStream()
+	}
+	return nil, fmt.Errorf("Cannot provide transport writer for string content")
+}
+
+func (f *File) GetTarget() string { return f.Target }
 func (f *File) Type() string { return "file" }
 
 func (f *FileType) UnmarshalYAML(value *yaml.Node) error {
@@ -528,3 +756,11 @@ func (f *FileType) GetMode() (mode os.FileMode) {
 	}
 	return
 }
+
+func (f *FileMode) GetMode() (os.FileMode, error) {
+	if mode, modeErr := strconv.ParseInt(string(*f), 8, 64); modeErr != nil {
+		return os.FileMode(mode), fmt.Errorf("%w: %s invalid mode %d - %w", ErrInvalidFileMode, *f, mode, modeErr)
+	} else {
+		return os.FileMode(mode), nil
+	}
+}

internal/resource/file_test.go

@@ -8,19 +8,22 @@ import (
 	"fmt"
 	"github.com/stretchr/testify/assert"
 	"gopkg.in/yaml.v3"
-	_ "io"
+	"io"
 	_ "log"
 	_ "net/http"
 	_ "net/http/httptest"
 	_ "net/url"
 	"os"
 	"path/filepath"
-	_ "strings"
+	"strings"
 	"syscall"
 	"testing"
 	"time"
 	"os/user"
 	"io/fs"
+	"decl/internal/codec"
+	"decl/internal/data"
+	"log/slog"
 )
 
 func TestNewFileResource(t *testing.T) {
@@ -101,12 +104,29 @@ func TestReadFile(t *testing.T) {
 	assert.YAMLEq(t, expected, string(r))
 }
 
+func TestUseConfig(t *testing.T) {
+	
+	file, _ := filepath.Abs(filepath.Join(TempDir, "missingfile.txt"))
+
+	f := NewFile()
+	assert.NotNil(t, f)
+	f.UseConfig(MockConfig(func(key string) (any, error) {
+		if key == "prefix" {
+			return "/tmp", nil
+		}
+		return nil, data.ErrUnknownConfigurationKey
+	}))
+
+	assert.Nil(t, f.SetURI(fmt.Sprintf("file://%s", file)))
+	assert.Equal(t, filepath.Join("/tmp", file), f.FilePath())
+}
+
 func TestReadFileError(t *testing.T) {
 	ctx := context.Background()
 	file, _ := filepath.Abs(filepath.Join(TempDir, "missingfile.txt"))
 
 	f := NewFile()
-	assert.NotEqual(t, nil, f)
+	assert.NotNil(t, f)
 	f.Path = file
 	_, e := f.Read(ctx)
 	assert.ErrorIs(t, e, fs.ErrNotExist)
@@ -129,7 +149,7 @@ func TestCreateFile(t *testing.T) {
 
 	f := NewFile()
 	e := f.LoadDecl(decl)
-	assert.Equal(t, nil, e)
+	assert.Nil(t, e)
 	assert.Equal(t, ProcessTestUserName, f.Owner)
 
 	applyErr := f.Apply()
@@ -141,10 +161,44 @@ func TestCreateFile(t *testing.T) {
 	assert.Greater(t, s.Size(), int64(0))
 
 	f.State = "absent"
-	assert.Equal(t, nil, f.Apply())
+	assert.Nil(t, f.Apply())
 	assert.NoFileExists(t, file, nil)
 }
 
+func TestLoadFile(t *testing.T) {
+	file, _ := filepath.Abs(filepath.Join(TempDir, "foo.txt"))
+
+	decl := fmt.Sprintf(`
+  path: "%s"
+  owner: "%s"
+  group: "%s"
+  mode: "0600"
+  content: |-
+    test line 1
+    test line 2
+  state: present
+`, file, ProcessTestUserName, ProcessTestGroupName)
+
+	f := NewFile()
+	assert.Nil(t, f.Load([]byte(decl), codec.FormatYaml))
+	assert.Equal(t, ProcessTestUserName, f.Owner)
+	assert.Greater(t, f.Size, int64(0))
+
+	reader := io.NopCloser(strings.NewReader(decl))
+	fr := NewFile()
+	assert.Nil(t, fr.LoadReader(reader, codec.FormatYaml))
+	assert.Equal(t, ProcessTestUserName, f.Owner)
+	assert.Greater(t, f.Size, int64(0))
+
+	contentReaderTransport, trErr := fr.ContentReaderStream()
+	assert.ErrorContains(t, trErr, "Cannot provide transport reader for string content")
+	assert.Nil(t, contentReaderTransport)
+
+	contentWriterTransport, trErr := fr.ContentWriterStream()
+	assert.ErrorContains(t, trErr, "Cannot provide transport writer for string content")
+	assert.Nil(t, contentWriterTransport)
+}
+
 func TestFileType(t *testing.T) {
 	fileType := []byte(`
 filetype: "directory"
@@ -240,6 +294,9 @@ func TestFileUpdateAttributesFromFileInfo(t *testing.T) {
 	updateAttributesErr := f.UpdateAttributesFromFileInfo(info)
 	assert.Nil(t, updateAttributesErr)
 	assert.Equal(t, DirectoryFile, f.FileType)
+
+	assert.ErrorIs(t, f.SetFileInfo(nil), ErrInvalidFileInfo)
+	
 }
 
 func TestFileReadStat(t *testing.T) {
@@ -267,11 +324,14 @@ func TestFileReadStat(t *testing.T) {
 	l := NewFile()
 	assert.NotNil(t, l)
 
+	assert.Nil(t, l.NormalizePath())
 	l.FileType = SymbolicLinkFile
 	l.Path = link
 	l.Target = linkTargetFile
 	l.State = "present"
 
+	slog.Info("TestFileReadStat()", "file", f, "link", l)
+
 	applyErr := l.Apply()
 	assert.Nil(t, applyErr)
 	readStatErr := l.ReadStat()
@@ -292,6 +352,7 @@ func TestFileResourceFileInfo(t *testing.T) {
 
 	f.Path = testFile
 	f.Mode = "0600"
+	f.Content = "some test data"
 	f.State = "present"
 	assert.Nil(t, f.Apply())
 
@@ -300,6 +361,11 @@ func TestFileResourceFileInfo(t *testing.T) {
 
 	fi := f.FileInfo()
 	assert.Equal(t, os.FileMode(0600), fi.Mode().Perm())
+	assert.Equal(t, testFile, fi.Name())
+	assert.False(t, fi.IsDir())
+	assert.Nil(t, fi.Sys())
+	assert.Greater(t, time.Now(), fi.ModTime())
+	assert.Greater(t, fi.Size(), int64(0))
 }
 
 func TestFileClone(t *testing.T) {
@@ -352,13 +418,13 @@ func TestFileErrors(t *testing.T) {
 	readStater := read.StateMachine()
 	read.Path = testFile
 	assert.Nil(t, readStater.Trigger("read"))
-	assert.Equal(t, "0631", read.Mode)
+	assert.Equal(t, FileMode("0631"), read.Mode)
 
 	f.Mode = "900"
 	assert.ErrorAs(t, stater.Trigger("create"), &ErrInvalidFileMode, "Apply should fail with NumError when converting invalid octal")
 	
 	assert.Nil(t, readStater.Trigger("read"))
-	assert.Equal(t, "0631", read.Mode)
+	assert.Equal(t, FileMode("0631"), read.Mode)
 
 	f.Mode = "0631"
 	f.Owner = "bar"
@@ -466,7 +532,7 @@ func TestFilePathURI(t *testing.T) {
 	f := NewFile()
 	e := f.LoadDecl(decl)
 	assert.Nil(t, e)
-	assert.Equal(t, "", f.Path)
+	assert.Equal(t, "", f.FilePath())
 	assert.ErrorContains(t, f.Validate(), "path: String length must be greater than or equal to 1")
 }
 
@@ -484,7 +550,7 @@ func TestFileAbsent(t *testing.T) {
 	f := NewFile()
 	stater := f.StateMachine()
 	e := f.LoadDecl(decl)
-	assert.Equal(t, nil, e)
+	assert.Nil(t, e)
 	assert.Equal(t, ProcessTestUserName, f.Owner)
 
 	err := stater.Trigger("read")
@@ -493,3 +559,51 @@ func TestFileAbsent(t *testing.T) {
 	assert.Equal(t, "absent", f.State)
 
 }
+
+func TestFileReader(t *testing.T) {
+	expected := "datatoreadusinganio.readers"
+	dataReader := strings.NewReader(expected)
+	file, _ := filepath.Abs(filepath.Join(TempDir, "testabsentstate.txt"))
+	decl := fmt.Sprintf(`
+  path: "%s"
+  owner: "%s"
+  group: "%s"
+  mode: "0600"
+  content: "%s"
+  filetype: "regular"
+`, file, ProcessTestUserName, ProcessTestGroupName, expected)
+
+	f := NewFile()
+	assert.Nil(t, f.LoadString(decl, codec.FormatYaml))
+	assert.Nil(t, f.SetContent(dataReader))
+	reader, err := f.GetContent(nil)
+	assert.Nil(t, err)
+	value, ioErr := io.ReadAll(reader)
+	assert.Nil(t, ioErr)
+	assert.Equal(t, expected, string(value))
+
+	var writer strings.Builder
+	_, writerErr := f.GetContent(&writer)
+	assert.Nil(t, writerErr)
+	assert.Equal(t, expected, writer.String())
+}
+
+func TestFileSetURIError(t *testing.T) {
+	file := fmt.Sprintf("%s/%s", TempDir, "fooread.txt")
+	f := NewFile()
+	assert.NotNil(t, f)
+	e := f.SetURI("foo://" + file)
+	assert.NotNil(t, e)
+	assert.ErrorIs(t, e, ErrInvalidResourceURI)
+}
+
+func TestFileContentType(t *testing.T) {
+	file := fmt.Sprintf("%s/%s", TempDir, "fooread.txt")
+	f := NewFile()
+	assert.NotNil(t, f)
+	e := f.SetURI("file://" + file)
+	assert.Nil(t, e)
+	assert.Equal(t, "txt", f.ContentType())
+}
+
+