first attempt to install protoc on linux

// `autogen:go.mod`

module go.wit.com/lib/fhelp

go 1.22

toolchain go1.23.6

require (
	github.com/google/uuid v1.6.0
	go.wit.com/lib/gui/shell v0.22.26
	go.wit.com/log v0.22.16
	golang.org/x/text v0.22.0
)

require github.com/go-cmd/cmd v1.4.3 // indirect

// `autogen:go.sum`

github.com/go-cmd/cmd v1.4.3 h1:6y3G+3UqPerXvPcXvj+5QNPHT02BUw7p6PsqRxLNA7Y=
github.com/go-cmd/cmd v1.4.3/go.mod h1:u3hxg/ry+D5kwh8WvUkHLAMe2zQCaXd00t35WfQaOFk=
github.com/go-test/deep v1.1.0 h1:WOcxcdHcvdgThNXjw0t76K42FXTU7HpNQWHpA2HHNlg=
github.com/go-test/deep v1.1.0/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
go.wit.com/lib/gui/shell v0.22.26 h1:F+7aadEujsTgyBEs5ptKGL6N72reDkGd/7b0Ju4HeTU=
go.wit.com/lib/gui/shell v0.22.26/go.mod h1:Km5o+DLU5up5jvTEum9wiTdsZZG/EUNERVzn2wJ6DBE=
go.wit.com/log v0.22.16 h1:E0Vd0Z2ILtfjhs7J/CQ4g13DK1jtQiYl6l5KOBGsZoA=
go.wit.com/log v0.22.16/go.mod h1:/c5Uj30sWRQ4B5ei2ElB6Q8Si/cK6v+KbxnH208KD84=
golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=

// `autogen:`

human.go

@@ -4,19 +4,44 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"runtime"
 
 	"go.wit.com/log"
 )
 
 func CheckProtoc() bool {
-	if checkCmdSimple("protoc") {
+	if !checkCmdSimple("protoc") {
 		userInstructions()
-		log.Sleep(2)
+		switch runtime.GOOS {
+		case "linux":
+			linuxInstall("protoc")
+		case "macos":
+			log.Info("todo: print instructions here for installing protoc on macos. brew install?")
+		case "windows":
+			log.Info("todo: print instructions here for installing protoc on windows")
+		default:
+			log.Info("todo: print instructions here for installing protoc on", runtime.GOOS)
+		}
 		return false
 	}
-	if checkCmdSimple("protoc-gen-go") {
+	if !checkCmdSimple("protoc") {
+		return false
+	}
+
+	if !checkCmdSimple("protoc-gen-go") {
 		userInstructions()
-		log.Sleep(2)
+		switch runtime.GOOS {
+		case "linux":
+			linuxInstall("protoc-gen-go")
+		case "macos":
+			log.Info("todo: print instructions here for installing protoc on macos. brew install?")
+		case "windows":
+			log.Info("todo: print instructions here for installing protoc on windows")
+		default:
+			log.Info("todo: print instructions here for installing protoc on", runtime.GOOS)
+		}
+	}
+	if !checkCmdSimple("protoc-gen-go") {
 		return false
 	}
 	return true
@@ -43,6 +68,8 @@ func checkCmd(cmd string) (string, error) {
 	return path, err
 }
 
+/*
+
 func oldcheckCmd(cmd string) {
 	// path, err := exec.LookPath(cmd)
 	_, err := exec.LookPath(cmd)
@@ -54,6 +81,7 @@ func oldcheckCmd(cmd string) {
 		// fmt.Printf("%s is available at %s\n", cmd, path)
 	}
 }
+*/
 
 // todo: figure out how to determine, in a package, what the program name is
 func okExit(s string) {

linux.go

@@ -0,0 +1,34 @@
+package fhelp
+
+// auto run protoc with the correct args
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"go.wit.com/lib/gui/shell"
+	"go.wit.com/log"
+)
+
+func linuxInstall(pkg string) {
+	cmd := []string{"apt", "install", "-y", pkg}
+	if pkg == "protoc" {
+		cmd = []string{"apt", "install", "-y", "protobuf-compiler"}
+	}
+	log.Info("Would you like to run", "sudo", cmd, "now?")
+	fmt.Fprintf(os.Stdout, "(y)es or (n)o ? ")
+
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		line := scanner.Text()
+		line = strings.TrimSpace(line)
+		line = strings.ToLower(line)
+		switch line {
+		case "y":
+			shell.Sudo(cmd)
+		default:
+		}
+	}
+}