From 023ab78fb1078634680dda512a2b485b19e16c40 Mon Sep 17 00:00:00 2001
From: Andrew Benton <andrew@sqlc.dev>
Date: Wed, 3 Jan 2024 20:21:23 -0500
Subject: [PATCH] fix(scripts): Remove test output regeneration script (#3105)

Resolves https://github.com/sqlc-dev/sqlc/issues/3097
---
 Makefile                   |  5 +--
 docs/guides/development.md | 13 ------
 scripts/regenerate/main.go | 85 --------------------------------------
 3 files changed, 1 insertion(+), 102 deletions(-)
 delete mode 100644 scripts/regenerate/main.go

diff --git a/Makefile b/Makefile
index 3f1245147e..b4b7e80bcf 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-.PHONY: build build-endtoend test test-ci test-examples test-endtoend regen start psql mysqlsh proto
+.PHONY: build build-endtoend test test-ci test-examples test-endtoend start psql mysqlsh proto
 
 build:
 	go build ./...
@@ -20,9 +20,6 @@ build-endtoend:
 
 test-ci: test-examples build-endtoend vet
 
-regen: sqlc-dev sqlc-gen-json
-	go run ./scripts/regenerate/
-
 sqlc-dev:
 	go build -o ~/bin/sqlc-dev ./cmd/sqlc/
 
diff --git a/docs/guides/development.md b/docs/guides/development.md
index 7f03115837..f795c3ce61 100644
--- a/docs/guides/development.md
+++ b/docs/guides/development.md
@@ -53,16 +53,3 @@ MYSQL_USER      root
 MYSQL_ROOT_PASSWORD  mysecretpassword
 MYSQL_DATABASE  dinotest
 ```
-
-## Regenerate expected test output
-
-If you need to update a large number of expected test output in the
-`internal/endtoend/testdata` directory, run the `regenerate` script.
-
-```
-go build -o ~/go/bin/sqlc-dev ./cmd/sqlc
-go run scripts/regenerate/main.go
-```
-
-Note that this uses the `sqlc-dev` binary, not `sqlc` so make sure you have an
-up to date `sqlc-dev` binary.
diff --git a/scripts/regenerate/main.go b/scripts/regenerate/main.go
deleted file mode 100644
index c1a578b62d..0000000000
--- a/scripts/regenerate/main.go
+++ /dev/null
@@ -1,85 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"log"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-)
-
-func parseExecCommand(path string) (string, error) {
-	var exec = struct {
-		Command string `json:"command"`
-	}{
-		Command: "generate",
-	}
-
-	execJsonPath := filepath.Join(path, "exec.json")
-	if _, err := os.Stat(execJsonPath); !os.IsNotExist(err) {
-		blob, err := os.ReadFile(execJsonPath)
-		if err != nil {
-			return "", err
-		}
-		if err := json.Unmarshal(blob, &exec); err != nil {
-			return "", err
-		}
-	}
-
-	return exec.Command, nil
-}
-
-func regenerate(dir string) error {
-	return filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		if info.IsDir() {
-			return nil
-		}
-		if strings.HasSuffix(path, "sqlc.json") || strings.HasSuffix(path, "sqlc.yaml") || strings.HasSuffix(path, "sqlc.yml") {
-			cwd := filepath.Dir(path)
-			command, err := parseExecCommand(cwd)
-			if err != nil {
-				return fmt.Errorf("failed to parse exec.json: %w", err)
-			}
-
-			if command != "generate" {
-				return nil
-			}
-
-			var expectFailure bool
-			if _, err := os.Stat(filepath.Join(cwd, "stderr.txt")); !os.IsNotExist(err) {
-				expectFailure = true
-			}
-
-			cmd := exec.Command("sqlc-dev", "generate")
-			cmd.Env = append(cmd.Env, "SQLC_DUMMY_VALUE=true")
-			cmd.Dir = cwd
-			out, failed := cmd.CombinedOutput()
-			if failed != nil && !expectFailure {
-				return fmt.Errorf("%s: sqlc-dev generate failed\n%s", cwd, out)
-			}
-			if expectFailure {
-				if err := os.WriteFile(filepath.Join(cwd, "stderr.txt"), out, 0644); err != nil {
-					return fmt.Errorf("failed to update stderr.txt: %v", err)
-				}
-			}
-		}
-		return nil
-	})
-}
-
-func main() {
-	dirs := []string{
-		filepath.Join("internal", "endtoend", "testdata"),
-		filepath.Join("examples"),
-	}
-	for _, d := range dirs {
-		if err := regenerate(d); err != nil {
-			log.Fatal(err)
-		}
-	}
-}