feat: inital commit

- added template subcmd which generates frc project templates

cmd/template/template.go

@@ -0,0 +1,143 @@
+package template
+
+import (
+	"context"
+	"encoding/json"
+	"io/fs"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"regexp"
+	"rph/state"
+)
+
+type TemplateOptions struct {
+	Lang string
+	ProjectType string
+	Dir string
+	Team uint64
+	DesktopSupport *bool
+}
+
+type wpilibPreferences struct {
+	CppIntellisense bool `json:"enableCppIntellisense"`
+	Lang string `json:"currentLanguage"`
+	Year string `json:"projectYear"`
+	Team int `json:"teamNumber"`
+}
+
+// Fetch fetch the latest template zip that's distributed by vscode-wpilib
+func Fetch(force bool, version string) {
+	os.MkdirAll(filepath.Join(state.CachePath), 0755)
+	getTemplateArchive(zipFile, force, version);
+}
+
+func GenerateProject(opts TemplateOptions) {
+	opts, err := openConfigUi(opts)
+	if err != nil {
+		slog.Error("Failed to run interactive ui", "error", err)
+		return
+	}
+
+	err = os.Mkdir(opts.Dir, 0755)
+	if err != nil {
+		slog.Error("Failed to create directory", "path", opts.Dir, "error", err)
+		// TODO: how should we handle if the directory already exists?
+	}
+
+	fsys, err := OpenArchive(context.Background())
+	if err != nil {
+		slog.Error("Failed to open archive", "err", err)
+		return
+	}
+
+	subFS, err := fs.Sub(fsys, filepath.Join(opts.Lang, opts.ProjectType))
+	if err != nil {
+		slog.Error("Unable to find project template", "template", opts.ProjectType, "error", err)
+	}
+
+	err = os.CopyFS(opts.Dir, subFS)
+	if err != nil {
+		slog.Error("Failed to copy template to destination", "template",
+			opts.ProjectType, "destination", opts.Dir, "error", err)
+		os.Exit(1)
+	}
+
+	// Configure the project
+
+	err = os.Chmod(filepath.Join(opts.Dir, "gradlew"), 0755)
+	if err != nil {
+		slog.Error("Unable to make gradlew executable", "error", err)
+	}
+
+	{
+		jsonFile := filepath.Join(opts.Dir, ".wpilib", "wpilib_preferences.json")
+		file, err := os.Open(jsonFile)
+		if err != nil {
+			slog.Error(
+				"Failed to open wpilib preferences file\n\nYou need to put your team number into " +
+				opts.Dir + "/.wpilib/wpilib_preferences.json",
+				"error",
+				err,
+				)
+			goto PostJson
+		}
+		defer file.Close()
+
+		{ // scope it so I can jump over it
+			var p wpilibPreferences
+			decoder := json.NewDecoder(file)
+			err = decoder.Decode(&p)
+			if err != nil {
+				slog.Error("Failed to decode json", "error", err)
+				goto PostJson
+			}
+
+			p.Team = int(opts.Team)
+
+			jsonData, err := json.MarshalIndent(p, "", "  ")
+			if err != nil {
+				slog.Error("Error marshaling JSON:", "error", err)
+				goto PostJson
+			}
+
+			err = os.WriteFile(jsonFile, jsonData, 0644)
+			if err != nil {
+				slog.Error("Error writing to file:", "error", err)
+				goto PostJson
+			}
+		}
+
+		PostJson:
+	}
+
+	// This is a big one
+	{
+		buildGradleFile := filepath.Join(opts.Dir, "build.gradle")
+    in, err := os.ReadFile(buildGradleFile)
+		if err != nil {
+			slog.Error("Failed to open gradle build file", "error", err)
+			goto PostGradle
+		}
+
+		{ // scope it so I can jump over it
+			value := "false"
+			if *opts.DesktopSupport {
+				value = "true"
+			}
+
+			// this regex was translated from:
+			// https://github.com/wpilibsuite/vscode-wpilib/blob/df7fc8bb9db453cbc9ccc32d3c5f81ef53f5e93a/vscode-wpilib/src/shared/generator.ts#L390
+			re := regexp.MustCompile(`(?m)^(\s*def\s+includeDesktopSupport\s*=\s*)(true|false)\b`)
+			out := re.ReplaceAllString(string(in), "${1}" + value)
+
+			err = os.WriteFile(buildGradleFile, []byte(out), 0644)
+			if err != nil {
+				slog.Error("failed to write to gradle build file", "error", err)
+				goto PostGradle
+			}
+		}
+
+		PostGradle:
+	}
+}