ollie/tools/lsp/main.go

492 lines
12 KiB
Go

// Multicall binary for LSP tools.
// Invoked via symlinks: lsp_hover, lsp_definition, lsp_references,
// lsp_completion, lsp_diagnostics, lsp_symbols, lsp_rename.
package main
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"sort"
"strconv"
"strings"
"ollie/tools/lsp/internal/lsp"
"ollie/tools/lsp/internal/cmdutil"
)
func main() {
name := filepath.Base(os.Args[0])
switch name {
case "lsp_hover":
cmdHover()
case "lsp_definition":
cmdDefinition()
case "lsp_references":
cmdReferences()
case "lsp_completion":
cmdCompletion()
case "lsp_diagnostics":
cmdDiagnostics()
case "lsp_symbols":
cmdSymbols()
case "lsp_rename":
cmdRename()
default:
fmt.Fprintf(os.Stderr, "lsp: unknown tool %q\n", name)
os.Exit(1)
}
}
// --- lsp_hover ---
func cmdHover() {
cmdutil.Run("hover", func(result json.RawMessage) {
var hover struct {
Contents struct {
Kind string `json:"kind"`
Value string `json:"value"`
} `json:"contents"`
}
if err := json.Unmarshal(result, &hover); err != nil {
var plain struct {
Contents string `json:"contents"`
}
if json.Unmarshal(result, &plain) == nil {
fmt.Println(plain.Contents)
return
}
fmt.Println("(no hover information)")
return
}
fmt.Println(hover.Contents.Value)
})
}
// --- lsp_definition ---
func cmdDefinition() {
cmdutil.Run("definition", func(result json.RawMessage) {
type position struct {
Line int `json:"line"`
Character int `json:"character"`
}
type rang struct {
Start position `json:"start"`
}
var locations []struct {
URI string `json:"uri"`
TargetURI string `json:"targetUri"`
Range *rang `json:"range"`
TargetRange *rang `json:"targetRange"`
}
if err := json.Unmarshal(result, &locations); err != nil {
var single struct {
URI string `json:"uri"`
TargetURI string `json:"targetUri"`
Range *rang `json:"range"`
TargetRange *rang `json:"targetRange"`
}
if err := json.Unmarshal(result, &single); err != nil {
fmt.Println("(no definition found)")
return
}
locations = append(locations, single)
}
for _, loc := range locations {
uri := loc.URI
if uri == "" {
uri = loc.TargetURI
}
path := lsp.URIToPath(uri)
r := loc.Range
if r == nil {
r = loc.TargetRange
}
if r == nil {
fmt.Println(path)
continue
}
fmt.Printf("%s:%d:%d\n", path, r.Start.Line+1, r.Start.Character+1)
}
})
}
// --- lsp_references ---
func cmdReferences() {
cmdutil.Run("references", func(result json.RawMessage) {
var locations []struct {
URI string `json:"uri"`
Range struct {
Start struct {
Line int `json:"line"`
Character int `json:"character"`
} `json:"start"`
} `json:"range"`
}
if err := json.Unmarshal(result, &locations); err != nil {
fmt.Println("(no references found)")
return
}
fmt.Printf("STATUS=ok MATCH_COUNT=%d\n", len(locations))
for _, loc := range locations {
path := lsp.URIToPath(loc.URI)
fmt.Printf("%s:%d:%d\n", path, loc.Range.Start.Line+1, loc.Range.Start.Character+1)
}
})
}
// --- lsp_completion ---
func cmdCompletion() {
cmdutil.Run("completion", func(result json.RawMessage) {
type completionItem struct {
Label string `json:"label"`
Kind int `json:"kind"`
Detail string `json:"detail"`
}
printItem := func(item completionItem) {
kind := completionKind(item.Kind)
if item.Detail != "" {
fmt.Printf("%s %s [%s]\n", item.Label, item.Detail, kind)
} else {
fmt.Printf("%s [%s]\n", item.Label, kind)
}
}
var list struct {
Items []completionItem `json:"items"`
}
if json.Unmarshal(result, &list) == nil && len(list.Items) > 0 {
for _, item := range list.Items {
printItem(item)
}
return
}
var items []completionItem
if json.Unmarshal(result, &items) == nil {
for _, item := range items {
printItem(item)
}
return
}
fmt.Println("(no completions)")
})
}
// --- lsp_diagnostics ---
func cmdDiagnostics() {
cmdutil.RunCustom(func() {
var args struct {
Path string `json:"path"`
}
if err := json.NewDecoder(os.Stdin).Decode(&args); err != nil {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
os.Exit(1)
}
file, _ := filepath.Abs(args.Path)
result, err := lsp.ClientRequest(&lsp.BridgeRequest{
Method: "diagnostics",
File: file,
})
if err != nil {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
os.Exit(1)
}
if result == nil || string(result) == "null" || string(result) == "[]" {
fmt.Println("(no diagnostics)")
return
}
type diagnostic struct {
Range struct {
Start struct {
Line int `json:"line"`
Character int `json:"character"`
} `json:"start"`
} `json:"range"`
Severity int `json:"severity"`
Message string `json:"message"`
}
var diags []diagnostic
if err := json.Unmarshal(result, &diags); err != nil {
fmt.Println("(no diagnostics)")
return
}
for _, d := range diags {
sev := severity(d.Severity)
line := d.Range.Start.Line + 1
col := d.Range.Start.Character + 1
fmt.Printf("%s:%d:%d: %s: %s\n", file, line, col, sev, d.Message)
}
})
}
// --- lsp_symbols ---
func cmdSymbols() {
cmdutil.RunCustom(func() {
var args struct {
Path string `json:"path"`
Query string `json:"query"`
}
if err := json.NewDecoder(os.Stdin).Decode(&args); err != nil {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
os.Exit(1)
}
file, _ := filepath.Abs(args.Path)
workspace := args.Query != ""
result, err := lsp.ClientRequest(&lsp.BridgeRequest{
Method: "symbols",
File: file,
Query: args.Query,
Workspace: workspace,
})
if err != nil {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
os.Exit(1)
}
if result == nil || string(result) == "null" {
fmt.Println("(no symbols found)")
return
}
type rang struct {
Start struct {
Line int `json:"line"`
} `json:"start"`
}
type documentSymbol struct {
Name string `json:"name"`
Kind int `json:"kind"`
Range rang `json:"range"`
Children []documentSymbol `json:"children"`
}
type workspaceSymbol struct {
Name string `json:"name"`
Kind int `json:"kind"`
Location struct {
URI string `json:"uri"`
Range rang `json:"range"`
} `json:"location"`
}
var docSymbols []documentSymbol
if json.Unmarshal(result, &docSymbols) == nil && len(docSymbols) > 0 {
var printDoc func([]documentSymbol, int)
printDoc = func(symbols []documentSymbol, indent int) {
prefix := strings.Repeat(" ", indent)
for _, s := range symbols {
line := s.Range.Start.Line + 1
fmt.Printf("%s%s L%d [%s]\n", prefix, s.Name, line, symbolKind(s.Kind))
if len(s.Children) > 0 {
printDoc(s.Children, indent+1)
}
}
}
printDoc(docSymbols, 0)
return
}
var wsSymbols []workspaceSymbol
if json.Unmarshal(result, &wsSymbols) == nil && len(wsSymbols) > 0 {
for _, s := range wsSymbols {
path := lsp.URIToPath(s.Location.URI)
line := s.Location.Range.Start.Line + 1
fmt.Printf("%s:%d %s [%s]\n", path, line, s.Name, symbolKind(s.Kind))
}
return
}
fmt.Println("(no symbols found)")
})
}
// --- lsp_rename ---
func cmdRename() {
cmdutil.RunCustom(func() {
var args struct {
Path string `json:"path"`
Line string `json:"line"`
Col string `json:"col"`
NewName string `json:"new_name"`
}
if err := json.NewDecoder(os.Stdin).Decode(&args); err != nil {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
os.Exit(1)
}
file, _ := filepath.Abs(args.Path)
line, _ := strconv.Atoi(args.Line)
col, _ := strconv.Atoi(args.Col)
result, err := lsp.ClientRequest(&lsp.BridgeRequest{
Method: "rename",
File: file,
Line: line - 1,
Col: col - 1,
NewName: args.NewName,
})
if err != nil {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
os.Exit(1)
}
if result == nil || string(result) == "null" {
fmt.Println("(rename produced no changes)")
return
}
summary := applyWorkspaceEdit(result)
if summary == "" {
fmt.Println("(rename produced no changes)")
} else {
fmt.Print(summary)
}
})
}
// --- helpers ---
func applyWorkspaceEdit(raw json.RawMessage) string {
type textEdit struct {
Range struct {
Start struct {
Line int `json:"line"`
Character int `json:"character"`
} `json:"start"`
End struct {
Line int `json:"line"`
Character int `json:"character"`
} `json:"end"`
} `json:"range"`
NewText string `json:"newText"`
}
var edit struct {
Changes map[string][]textEdit `json:"changes"`
DocumentChanges []struct {
TextDocument struct {
URI string `json:"uri"`
} `json:"textDocument"`
Edits []textEdit `json:"edits"`
} `json:"documentChanges"`
}
if err := json.Unmarshal(raw, &edit); err != nil {
return ""
}
changes := make(map[string][]textEdit)
if len(edit.DocumentChanges) > 0 {
for _, dc := range edit.DocumentChanges {
path := lsp.URIToPath(dc.TextDocument.URI)
changes[path] = append(changes[path], dc.Edits...)
}
} else {
for uri, edits := range edit.Changes {
path := lsp.URIToPath(uri)
changes[path] = edits
}
}
var sb strings.Builder
totalEdits := 0
for path, edits := range changes {
data, err := os.ReadFile(path)
if err != nil {
continue
}
lines := strings.SplitAfter(string(data), "\n")
sort.Slice(edits, func(i, j int) bool {
if edits[i].Range.Start.Line != edits[j].Range.Start.Line {
return edits[i].Range.Start.Line > edits[j].Range.Start.Line
}
return edits[i].Range.Start.Character > edits[j].Range.Start.Character
})
for _, e := range edits {
sl, sc := e.Range.Start.Line, e.Range.Start.Character
el, ec := e.Range.End.Line, e.Range.End.Character
if sl >= len(lines) {
continue
}
before := strings.Join(lines[:sl], "") + lines[sl][:min(sc, len(lines[sl]))]
var after string
if el < len(lines) {
after = lines[el][min(ec, len(lines[el])):] + strings.Join(lines[el+1:], "")
}
content := before + e.NewText + after
lines = strings.SplitAfter(content, "\n")
}
os.WriteFile(path, []byte(strings.Join(lines, "")), 0644)
totalEdits += len(edits)
fmt.Fprintf(&sb, "%s: %d edit(s)\n", path, len(edits))
}
fmt.Fprintf(&sb, "total: %d file(s), %d edit(s)\n", len(changes), totalEdits)
return sb.String()
}
func completionKind(k int) string {
kinds := map[int]string{
1: "Text", 2: "Method", 3: "Function", 4: "Constructor",
5: "Field", 6: "Variable", 7: "Class", 8: "Interface",
9: "Module", 10: "Property", 11: "Unit", 12: "Value",
13: "Enum", 14: "Keyword", 15: "Snippet", 16: "Color",
17: "File", 18: "Reference", 19: "Folder", 20: "EnumMember",
21: "Constant", 22: "Struct", 23: "Event", 24: "Operator",
25: "TypeParameter",
}
if name, ok := kinds[k]; ok {
return name
}
return "Unknown"
}
func symbolKind(k int) string {
kinds := map[int]string{
1: "File", 2: "Module", 3: "Namespace", 4: "Package",
5: "Class", 6: "Method", 7: "Property", 8: "Field",
9: "Constructor", 10: "Enum", 11: "Interface", 12: "Function",
13: "Variable", 14: "Constant", 15: "String", 16: "Number",
17: "Boolean", 18: "Array", 19: "Object", 20: "Key",
21: "Null", 22: "EnumMember", 23: "Struct", 24: "Event",
25: "Operator", 26: "TypeParameter",
}
if name, ok := kinds[k]; ok {
return name
}
return fmt.Sprintf("Kind(%d)", k)
}
func severity(s int) string {
switch s {
case 1:
return "error"
case 2:
return "warning"
case 3:
return "info"
case 4:
return "hint"
default:
return "diagnostic"
}
}