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kubectl
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Checkpoint including new Loader class and minor fixes.

This commit is contained in:
Sean Sullivan 2018-02-14 14:52:33 -08:00
parent cc14158a3e
commit 01ea12b4fb
4 changed files with 54 additions and 45 deletions
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4
pkg/kinflate/commands/inflate.go
View File

@ -83,8 +83,8 @@ func (o *inflateOptions) Complete(cmd *cobra.Command, args []string) error {
// RunKinflate runs inflate command (do real work).
func (o *inflateOptions) RunKinflate(out, errOut io.Writer) error {
// Build a tree of ManifestData.
loader := tree.Loader{FS: fs.MakeRealFS(), Path: o.manifestPath}
root, err := loader.LoadManifestDataFromPath(o.manifestPath)
loader := tree.Loader{FS: fs.MakeRealFS(), InitialPath: o.manifestPath}
root, err := loader.LoadManifestDataFromPath()
if err != nil {
return err
}

69
pkg/kinflate/tree/builder.go
View File

@ -29,25 +29,43 @@ import (
)
type Loader struct {
// Allows unit tests with fake filesystem.
FS fs.FileSystem
Path string
// Unexpanded manifest directory or manifest filename.
// Examples: "." or "sean-manifest.yaml"
InitialPath string
// Full expanded manifest file path.
// Examples: "/usr/local/Kube-manifest.yaml" or "/home/seans/project/sean-manifest.yaml"
FullFilePath string
}
// LoadManifestDataFromPath takes a path to a Kube-manifest.yaml or a dir that has a Kube-manifest.yaml.
// It returns a tree of ManifestData.
func (l *Loader) LoadManifestDataFromPath(path string) (*ManifestData, error) {
return l.loadManifestDataFromPath(path)
}
// loadManifestDataFromPath make a ManifestData from path
func (l *Loader) loadManifestDataFromPath(path string) (*ManifestData, error) {
m, err := l.loadManifestFileFromPath(path)
func (l *Loader) LoadManifestDataFromPath() (*ManifestData, error) {
m, err := l.loadManifestFileFromPath()
if err != nil {
return nil, err
}
return l.manifestToManifestData(m)
}
// loadManifestFileFromPath loads a manifest object from file.
func (l *Loader) loadManifestFileFromPath() (*manifest.Manifest, error) {
mLoader := kutil.ManifestLoader{FS: l.FS}
// Expand the initial directory or file path into the full manifest file path.
fullFilepath, err := mLoader.MakeValidManifestPath(l.InitialPath)
if err != nil {
return nil, err
}
l.FullFilePath = fullFilepath
m, err := mLoader.Read(fullFilepath)
if err != nil {
return nil, err
}
mLoader.Validate(m)
return m, err
}
// manifestToManifestData make a ManifestData given an Manifest object
func (l *Loader) manifestToManifestData(m *manifest.Manifest) (*ManifestData, error) {
mdata, err := l.loadManifestDataFromManifestFileAndResources(m)
@ -57,7 +75,8 @@ func (l *Loader) manifestToManifestData(m *manifest.Manifest) (*ManifestData, er
pkgs := []*ManifestData{}
for _, pkg := range m.Packages {
pkgNode, err := l.LoadManifestDataFromPath(pkg)
loader := &Loader{FS: l.FS, InitialPath: pkg}
pkgNode, err := loader.LoadManifestDataFromPath()
if err != nil {
return nil, err
}
@ -67,22 +86,6 @@ func (l *Loader) manifestToManifestData(m *manifest.Manifest) (*ManifestData, er
return mdata, nil
}
// loadManifestFileFromPath loads a manifest object from file.
func (l *Loader) loadManifestFileFromPath(filename string) (*manifest.Manifest, error) {
var loader = kutil.ManifestLoader{FS: l.FS}
fullFilename, err := loader.MakeValidManifestPath(filename)
if err != nil {
return nil, err
}
l.Path = fullFilename
m, err := loader.Read(fullFilename)
if err != nil {
return nil, err
}
loader.Validate(m)
return m, err
}
func (l *Loader) loadManifestDataFromManifestFileAndResources(m *manifest.Manifest) (*ManifestData, error) {
mdata := &ManifestData{}
var err error
@ -91,15 +94,15 @@ func (l *Loader) loadManifestDataFromManifestFileAndResources(m *manifest.Manife
mdata.ObjectLabels = m.ObjectLabels
mdata.ObjectAnnotations = m.ObjectAnnotations
res, err := l.LoadKObjectFromPaths(m.Resources)
res, err := l.loadKObjectFromPaths(m.Resources)
if err != nil {
errorMsg := fmt.Sprintf("Resource from Manifest (%s) couldn't be loaded properly.\n%v\n"+
"Please check the Resource subsection in (%s).", l.Path, err, l.Path)
"Please check the Resource subsection in (%s).", l.FullFilePath, err, l.FullFilePath)
return nil, fmt.Errorf(errorMsg)
}
mdata.Resources = ResourcesType(res)
pat, err := l.LoadKObjectFromPaths(m.Patches)
pat, err := l.loadKObjectFromPaths(m.Patches)
if err != nil {
return nil, err
}
@ -125,10 +128,10 @@ func (l *Loader) loadManifestDataFromManifestFileAndResources(m *manifest.Manife
return mdata, nil
}
func (l *Loader) LoadKObjectFromPaths(paths []string) (types.KObject, error) {
func (l *Loader) loadKObjectFromPaths(paths []string) (types.KObject, error) {
res := types.KObject{}
for _, path := range paths {
err := l.LoadKObjectFromPath(path, res)
err := l.loadKObjectFromPath(path, res)
if err != nil {
return nil, err
}
@ -136,7 +139,7 @@ func (l *Loader) LoadKObjectFromPaths(paths []string) (types.KObject, error) {
return res, nil
}
func (l *Loader) LoadKObjectFromPath(path string, into types.KObject) error {
func (l *Loader) loadKObjectFromPath(path string, into types.KObject) error {
_, err := l.FS.Stat(path)
if err != nil {
return err
@ -156,13 +159,13 @@ func (l *Loader) LoadKObjectFromPath(path string, into types.KObject) error {
return nil
}
err = l.LoadKObjectFromFile(filepath, into)
err = l.loadKObjectFromFile(filepath, into)
return nil
})
return e
}
func (l *Loader) LoadKObjectFromFile(filename string, into types.KObject) error {
func (l *Loader) loadKObjectFromFile(filename string, into types.KObject) error {
f, err := l.FS.Stat(filename)
if err != nil {
return err

14
pkg/kinflate/tree/builder_test.go
View File

@ -130,11 +130,12 @@ func TestFileToMap(t *testing.T) {
},
}
// TODO: Convert to a fake filesystem instead of using test files.
loader := Loader{FS: fs.MakeRealFS()}
for _, tc := range testcases {
actual := types.KObject{}
err := loader.LoadKObjectFromFile(tc.filename, actual)
err := loader.loadKObjectFromFile(tc.filename, actual)
if err == nil {
if tc.expectErr {
t.Errorf("filename: %q, expect an error containing %q, but didn't get an error", tc.filename, tc.errorStr)
@ -182,11 +183,12 @@ func TestPathToMap(t *testing.T) {
},
}
// TODO: Convert to a fake filesystem instead of using test files.
loader := Loader{FS: fs.MakeRealFS()}
for _, tc := range testcases {
actual := types.KObject{}
err := loader.LoadKObjectFromPath(tc.filename, actual)
err := loader.loadKObjectFromPath(tc.filename, actual)
if err == nil {
if tc.expectErr {
t.Errorf("filename: %q, expect an error containing %q, but didn't get an error", tc.filename, tc.errorStr)
@ -245,10 +247,11 @@ func TestPathsToMap(t *testing.T) {
},
}
// TODO: Convert to a fake filesystem instead of using test files.
loader := Loader{FS: fs.MakeRealFS()}
for _, tc := range testcases {
actual, err := loader.LoadKObjectFromPaths(tc.filenames)
actual, err := loader.loadKObjectFromPaths(tc.filenames)
if err == nil {
if tc.expectErr {
t.Errorf("filenames: %q, expect an error containing %q, but didn't get an error", tc.filenames, tc.errorStr)
@ -308,6 +311,7 @@ func TestManifestToManifestData(t *testing.T) {
Secrets: SecretsType(types.KObject{}),
}
// TODO: Convert to a fake filesystem instead of using test files.
loader := Loader{FS: fs.MakeRealFS()}
actual, err := loader.loadManifestDataFromManifestFileAndResources(m)
if err != nil {
@ -329,9 +333,9 @@ func TestLoadManifestDataFromPath(t *testing.T) {
parent1.Packages = []*ManifestData{child1}
parent2.Packages = []*ManifestData{child2}
loader := Loader{FS: fs.MakeRealFS()}
loader := Loader{FS: fs.MakeRealFS(), InitialPath: "testdata/hierarchy"}
expected := grandparent
actual, err := loader.loadManifestDataFromPath("testdata/hierarchy")
actual, err := loader.LoadManifestDataFromPath()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}

10
pkg/kinflate/util/manifestloader.go
View File

@ -33,9 +33,11 @@ type ManifestLoader struct {
FS fs.FileSystem
}
//This is a placeholder for the ManifestErrors type
//TODO: Think about this struct and make is better
type ManifestErrors []string
// First pass to encapsulate fields for more informative error messages.
type ManifestErrors struct {
filepath string
errorMsg string
}
func (m *ManifestLoader) fs() fs.FileSystem {
if m.FS == nil {
@ -99,7 +101,7 @@ func (m *ManifestLoader) Write(filename string, manifest *manifest.Manifest) err
}
// Read must have already been called and we have a loaded manifest
func (m *ManifestLoader) Validate(manifest *manifest.Manifest) ManifestErrors {
func (m *ManifestLoader) Validate(manifest *manifest.Manifest) []ManifestErrors {
//TODO: implement this function
//// validate Packages
//merrors := m.validatePackages(manifest.Packages)