From fce9170f75d9bcc10699ff738948591bf637f28b Mon Sep 17 00:00:00 2001
From: Jeff Carr <jcarr@wit.com>
Date: Thu, 9 Oct 2025 01:03:37 -0500
Subject: zsh stuff

---
 Makefile | 16 +++++++++++-----
 shell.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index f27bc29..2f87593 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,8 @@
-# git remote add github git@github.com:wit-go/gui-debugger.git
+all: auto.pb.go goimports vet
+	@echo This GO code passes the compile checks
 
-all: generate goimports vet
-	@echo common init code for common packages
+auto.pb.go: auto.proto
+	make generate
 
 generate: clean
 	go mod init
@@ -22,5 +23,10 @@ clean:
 	-rm -f go.*
 	go-mod-clean purge
 
-auto.pb.go: auto.proto
-	autogenpb --proto auto.proto
+# fixes your numbers if you move things around
+# THIS TOTALLY BREAKS THE POINT OF PROTOBUF
+# To work around that breaking, you must change the version
+# also, all the wrapping code must support this. which it doesn't
+proto-renumber: clean
+	autogenpb --renumber --proto auto.proto
+	make goimports vet
diff --git a/shell.go b/shell.go
index 212c935..2602513 100644
--- a/shell.go
+++ b/shell.go
@@ -4,8 +4,16 @@ package prep
 
 import (
 	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
 )
 
+func makeCompletionText(argname string) string {
+	sh := getParentProcessName()
+	return fmt.Sprintf("# shell might be %s", sh)
+}
+
 func makeBashCompletionText(argname string) string {
 	var out string
 
@@ -74,6 +82,41 @@ func makeBashCompletionText2(argname string) string {
 	return out
 }
 
+func getParentProcessName() string {
+	ppid := os.Getppid()
+	// On Linux, the command name is in /proc/<pid>/comm
+	commPath := fmt.Sprintf("/proc/%d/comm", ppid)
+	content, err := ioutil.ReadFile(commPath)
+	if err != nil {
+		return "unknown"
+	}
+	// The file content has a trailing newline, so trim it.
+	return strings.TrimSpace(string(content))
+}
+
+/*
+
+  This script will be placed in a directory in your $fpath (e.g., ~/.zsh/completions/_my-app).
+
+#compdef my-app
+
+# This function will be called by Zsh to get the completions.
+_my_app_completions() {
+  local -a suggestions
+
+  # Here is the key part:
+  # We execute our Go program with the hidden flag and capture its output.
+    9   # The `(f)` flag splits the output by line into an array.
+   10   suggestions=( ${(f)"$(my-app --_generate_completions)"} )
+   11
+   12   # Pass the suggestions to the Zsh completion engine.
+   13   _describe 'command' suggestions
+   14 }
+   15
+   16 # Tell Zsh to call our function when completing for my-app
+   17 _my_app_completions "$@"
+*/
+
 // zsh:
 /*
 #compdef forge
-- 
cgit v1.2.3