Ricardo Carneiro
59cb2b5ddb
Replaces placeholder with full csharp@0.1.0 plugin. Adds helper/ package (locate, process, client, protocol) for JSON-RPC over stdio to ctx-roslyn-helper. project.go finds .sln (fallback: single .csproj), loads it, retrieves projectSummary, formats dense markdown with project details, reference graph, and multi-targeting section. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
87 lines
2.4 KiB
Go
87 lines
2.4 KiB
Go
package helper
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import (
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"errors"
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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)
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const helperBinary = "ctx-roslyn-helper"
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// ErrHelperNotFound is returned when the Roslyn helper binary cannot be located.
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var ErrHelperNotFound = errors.New("roslyn helper not found")
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// LocateHelper searches for the ctx-roslyn-helper binary using four strategies:
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// 1. CTX_ROSLYN_HELPER environment variable
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// 2. Same directory as the running ctx binary
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// 3. PATH
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// 4. tools/roslyn-helper/publish/ relative to working directory
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//
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// Returns the absolute path or ErrHelperNotFound with a diagnostic message.
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func LocateHelper() (string, error) {
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name := helperBinary
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if runtime.GOOS == "windows" {
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name += ".exe"
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}
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tried := []string{}
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// 1. Environment variable
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if env := os.Getenv("CTX_ROSLYN_HELPER"); env != "" {
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if fileExists(env) {
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return env, nil
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}
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tried = append(tried, fmt.Sprintf("$CTX_ROSLYN_HELPER = %s (not found)", env))
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} else {
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tried = append(tried, "$CTX_ROSLYN_HELPER (not set)")
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}
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// 2. Same directory as ctx binary
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if exePath, err := os.Executable(); err == nil {
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exeDir := filepath.Dir(exePath)
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candidate := filepath.Join(exeDir, name)
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if fileExists(candidate) {
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return candidate, nil
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}
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tried = append(tried, fmt.Sprintf("%s (not found)", exeDir))
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}
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// 3. PATH
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if found, err := exec.LookPath(name); err == nil {
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return found, nil
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}
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tried = append(tried, "PATH (not found)")
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// 4. Dev fallback: tools/roslyn-helper/publish/ relative to working dir
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if cwd, err := os.Getwd(); err == nil {
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candidate := filepath.Join(cwd, "tools", "roslyn-helper", "publish", name)
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if fileExists(candidate) {
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return candidate, nil
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}
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tried = append(tried, fmt.Sprintf("tools/roslyn-helper/publish/ (not found)"))
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}
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return "", fmt.Errorf("%w\n\nLooked in:\n - %s\n - %s\n - %s\n - %s\n\nTo build the helper, run:\n cd tools\\roslyn-helper\n dotnet publish src/RoslynHelper -c Release -r win-x64 --self-contained false -o publish/",
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ErrHelperNotFound,
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safeIdx(tried, 0, "$CTX_ROSLYN_HELPER (not set)"),
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safeIdx(tried, 1, "ctx.exe directory"),
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safeIdx(tried, 2, "PATH"),
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safeIdx(tried, 3, "tools/roslyn-helper/publish/"),
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)
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}
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func fileExists(path string) bool {
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info, err := os.Stat(path)
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return err == nil && !info.IsDir()
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}
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func safeIdx(s []string, i int, fallback string) string {
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if i < len(s) {
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return s[i]
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}
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return fallback
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}
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