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internal/filesystem: Integrate spf13/afero (#249)
* internal/filesystem: Integrate spf13/afero * go mod vendor
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| // Package filesystem implements a virtual filesystem which reflects | ||
| // the needs of both the language server and the HCL parser. | ||
| // | ||
| // - creates in-memory files based on data received from the language client | ||
| // - allows updating in-memory files via diffs received from the language client | ||
| // - maintains file metadata (e.g. version, or whether it's open by the client) | ||
| package filesystem |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package filesystem | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "io/ioutil" | ||
| "path/filepath" | ||
|
|
||
| "github.com/hashicorp/terraform-ls/internal/source" | ||
| "github.com/spf13/afero" | ||
| ) | ||
|
|
||
| type fileOpener interface { | ||
| Open(name string) (afero.File, error) | ||
| } | ||
|
|
||
| type document struct { | ||
| meta *documentMetadata | ||
| fo fileOpener | ||
| } | ||
|
|
||
| func (d *document) Text() ([]byte, error) { | ||
| f, err := d.fo.Open(d.meta.dh.FullPath()) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return ioutil.ReadAll(f) | ||
| } | ||
|
|
||
| func (d *document) FullPath() string { | ||
| return d.meta.dh.FullPath() | ||
| } | ||
|
|
||
| func (d *document) Dir() string { | ||
| return filepath.Dir(d.meta.dh.FullPath()) | ||
| } | ||
|
|
||
| func (d *document) Filename() string { | ||
| return filepath.Base(d.meta.dh.FullPath()) | ||
| } | ||
|
|
||
| func (d *document) URI() string { | ||
| return URIFromPath(d.meta.dh.FullPath()) | ||
| } | ||
|
|
||
| func (d *document) Lines() source.Lines { | ||
| return d.meta.Lines() | ||
| } | ||
|
|
||
| func (d *document) Version() int { | ||
| return d.meta.Version() | ||
| } | ||
|
|
||
| func (d *document) IsOpen() bool { | ||
| return d.meta.IsOpen() | ||
| } | ||
|
|
||
| func (d *document) Equal(doc *document) bool { | ||
| if d.URI() != doc.URI() { | ||
| return false | ||
| } | ||
| if d.IsOpen() != doc.IsOpen() { | ||
| return false | ||
| } | ||
| if d.Version() != doc.Version() { | ||
| return false | ||
| } | ||
|
|
||
| leftB, err := d.Text() | ||
| if err != nil { | ||
| return false | ||
| } | ||
| rightB, err := doc.Text() | ||
| if err != nil { | ||
| return false | ||
| } | ||
| return bytes.Equal(leftB, rightB) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| package filesystem | ||
|
|
||
| import ( | ||
| "sync" | ||
|
|
||
| "github.com/hashicorp/terraform-ls/internal/source" | ||
| ) | ||
|
|
||
| type documentMetadata struct { | ||
| dh DocumentHandler | ||
|
|
||
| mu *sync.RWMutex | ||
| isOpen bool | ||
| version int | ||
| lines source.Lines | ||
| } | ||
|
|
||
| func NewDocumentMetadata(dh DocumentHandler, content []byte) *documentMetadata { | ||
| return &documentMetadata{ | ||
| dh: dh, | ||
| mu: &sync.RWMutex{}, | ||
| lines: source.MakeSourceLines(dh.Filename(), content), | ||
| } | ||
| } | ||
|
|
||
| func (d *documentMetadata) setOpen(isOpen bool) { | ||
| d.mu.Lock() | ||
| defer d.mu.Unlock() | ||
| d.isOpen = isOpen | ||
| } | ||
|
|
||
| func (d *documentMetadata) setVersion(version int) { | ||
| d.mu.Lock() | ||
| defer d.mu.Unlock() | ||
| d.version = version | ||
| } | ||
|
|
||
| func (d *documentMetadata) updateLines(content []byte) { | ||
| d.mu.Lock() | ||
| defer d.mu.Unlock() | ||
| d.lines = source.MakeSourceLines(d.dh.Filename(), content) | ||
| } | ||
|
|
||
| func (d *documentMetadata) Lines() source.Lines { | ||
| d.mu.RLock() | ||
| defer d.mu.RUnlock() | ||
| return d.lines | ||
| } | ||
|
|
||
| func (d *documentMetadata) Version() int { | ||
| d.mu.RLock() | ||
| defer d.mu.RUnlock() | ||
| return d.version | ||
| } | ||
|
|
||
| func (d *documentMetadata) IsOpen() bool { | ||
| d.mu.RLock() | ||
| defer d.mu.RUnlock() | ||
| return d.isOpen | ||
| } |
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