From da8aa52b5ce6d948a346d7dbf1254ca3faaeac80 Mon Sep 17 00:00:00 2001
From: Ben Burwell <ben@benburwell.com>
Date: Sat, 6 Jun 2020 17:02:38 -0400
Subject: Add status subcommand

---
 apply.go  | 25 +------------------------
 conf.go   | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 main.go   | 29 ++++++-----------------------
 status.go | 30 ++++++++++++++++++++++++++++++
 4 files changed, 88 insertions(+), 47 deletions(-)
 create mode 100644 conf.go
 create mode 100644 status.go

diff --git a/apply.go b/apply.go
index ddf12a5..904ffef 100644
--- a/apply.go
+++ b/apply.go
@@ -11,7 +11,7 @@ func apply(conf *Conf, args []string) error {
 	if len(args) != 0 {
 		return applyFiles(conf, args)
 	}
-	names, err := getFileNames(conf)
+	names, err := conf.FileNames()
 	if err != nil {
 		return err
 	}
@@ -56,26 +56,3 @@ func applyFile(conf *Conf, name string) error {
 	}
 	return nil
 }
-
-func getFileNames(c *Conf) ([]string, error) {
-	var names []string
-	dir := filepath.Join(c.Source, "templates")
-	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		if info.IsDir() {
-			return nil
-		}
-		name, err := filepath.Rel(dir, path)
-		if err != nil {
-			return err
-		}
-		names = append(names, name)
-		return nil
-	})
-	if err != nil {
-		return nil, err
-	}
-	return names, nil
-}
diff --git a/conf.go b/conf.go
new file mode 100644
index 0000000..71b2919
--- /dev/null
+++ b/conf.go
@@ -0,0 +1,51 @@
+package main
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+)
+
+type Conf struct {
+	Source string
+	Dest   string
+}
+
+func loadConf() (*Conf, error) {
+	source := os.Getenv("CONF_SOURCE")
+	info, err := os.Stat(source)
+	if err != nil {
+		return nil, err
+	}
+	if !info.IsDir() {
+		return nil, errors.New("CONF_SOURCE is not a directory")
+	}
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return nil, err
+	}
+	return &Conf{Source: source, Dest: home}, nil
+}
+
+func (c *Conf) FileNames() ([]string, error) {
+	var names []string
+	dir := filepath.Join(c.Source, "templates")
+	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		name, err := filepath.Rel(dir, path)
+		if err != nil {
+			return err
+		}
+		names = append(names, name)
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return names, nil
+}
diff --git a/main.go b/main.go
index 8c49ce3..52a47ba 100644
--- a/main.go
+++ b/main.go
@@ -1,16 +1,10 @@
 package main
 
 import (
-	"errors"
 	"fmt"
 	"os"
 )
 
-type Conf struct {
-	Source string
-	Dest   string
-}
-
 func main() {
 	conf, err := loadConf()
 	if err != nil {
@@ -18,7 +12,7 @@ func main() {
 		os.Exit(1)
 	}
 	if len(os.Args) < 2 {
-		fmt.Printf("usage: conf <adopt|apply> [files...]\n")
+		fmt.Printf("usage: conf <adopt|apply|status> [files...]\n")
 		os.Exit(1)
 	}
 	switch os.Args[1] {
@@ -32,24 +26,13 @@ func main() {
 			fmt.Printf("%v\n", err)
 			os.Exit(1)
 		}
+	case "status":
+		if err := status(conf, os.Args[2:]); err != nil {
+			fmt.Printf("%v\n", err)
+			os.Exit(1)
+		}
 	default:
 		fmt.Printf("unrecognized command: %s\n", os.Args[1])
 		os.Exit(1)
 	}
 }
-
-func loadConf() (*Conf, error) {
-	source := os.Getenv("CONF_SOURCE")
-	info, err := os.Stat(source)
-	if err != nil {
-		return nil, err
-	}
-	if !info.IsDir() {
-		return nil, errors.New("CONF_SOURCE is not a directory")
-	}
-	home, err := os.UserHomeDir()
-	if err != nil {
-		return nil, err
-	}
-	return &Conf{Source: source, Dest: home}, nil
-}
diff --git a/status.go b/status.go
new file mode 100644
index 0000000..b9c7aa1
--- /dev/null
+++ b/status.go
@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+)
+
+func status(conf *Conf, args []string) error {
+	if len(args) != 0 {
+		return statusFiles(conf, args)
+	}
+	names, err := conf.FileNames()
+	if err != nil {
+		return err
+	}
+	return statusFiles(conf, names)
+}
+
+func statusFiles(conf *Conf, names []string) error {
+	for _, name := range names {
+		if err := statusFile(conf, name); err != nil {
+			return fmt.Errorf("could not check status of %s: %v", name, err)
+		}
+	}
+	return nil
+}
+
+func statusFile(conf *Conf, name string) error {
+	fmt.Printf("%s: OK\n", name)
+	return nil
+}
-- 
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