From c8270461097c012be3398154fdd6588307d92097 Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Thu, 31 Jan 2019 20:02:25 -0800
Subject: [PATCH] Add Mutator.Stat

---
 lib/chezmoi/any_mutator.go     | 9 +++++++--
 lib/chezmoi/logging_mutator.go | 5 +++++
 lib/chezmoi/mutator.go         | 1 +
 lib/chezmoi/null_mutator.go    | 5 +++++
 4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/lib/chezmoi/any_mutator.go b/lib/chezmoi/any_mutator.go
index 182840a0447..cc7eb120f3e 100644
--- a/lib/chezmoi/any_mutator.go
+++ b/lib/chezmoi/any_mutator.go
@@ -2,8 +2,8 @@ package chezmoi
 
 import "os"
 
-// An AnyMutator wraps another Mutator and records if any of its methods are
-// called.
+// An AnyMutator wraps another Mutator and records if any of its mutating
+// methods are called.
 type AnyMutator struct {
 	m       Mutator
 	mutated bool
@@ -46,6 +46,11 @@ func (m *AnyMutator) Rename(oldpath, newpath string) error {
 	return m.m.Rename(oldpath, newpath)
 }
 
+// Stat implements Mutator.Stat.
+func (m *AnyMutator) Stat(path string) (os.FileInfo, error) {
+	return m.m.Stat(path)
+}
+
 // WriteFile implements Mutator.WriteFile.
 func (m *AnyMutator) WriteFile(name string, data []byte, perm os.FileMode, currData []byte) error {
 	m.mutated = true
diff --git a/lib/chezmoi/logging_mutator.go b/lib/chezmoi/logging_mutator.go
index 844d36628cc..4c47fda02f4 100644
--- a/lib/chezmoi/logging_mutator.go
+++ b/lib/chezmoi/logging_mutator.go
@@ -71,6 +71,11 @@ func (m *LoggingMutator) Rename(oldpath, newpath string) error {
 	return err
 }
 
+// Stat implements Mutator.Stat.
+func (m *LoggingMutator) Stat(name string) (os.FileInfo, error) {
+	return m.m.Stat(name)
+}
+
 // WriteFile implements Mutator.WriteFile.
 func (m *LoggingMutator) WriteFile(name string, data []byte, perm os.FileMode, currData []byte) error {
 	action := fmt.Sprintf("install -m %o /dev/null %s", perm, name)
diff --git a/lib/chezmoi/mutator.go b/lib/chezmoi/mutator.go
index e2bd29213e9..45bd67385f5 100644
--- a/lib/chezmoi/mutator.go
+++ b/lib/chezmoi/mutator.go
@@ -8,6 +8,7 @@ type Mutator interface {
 	Mkdir(name string, perm os.FileMode) error
 	RemoveAll(name string) error
 	Rename(oldpath, newpath string) error
+	Stat(name string) (os.FileInfo, error)
 	WriteFile(filename string, data []byte, perm os.FileMode, currData []byte) error
 	WriteSymlink(oldname, newname string) error
 }
diff --git a/lib/chezmoi/null_mutator.go b/lib/chezmoi/null_mutator.go
index 4f8d231cf96..c2d58b90277 100644
--- a/lib/chezmoi/null_mutator.go
+++ b/lib/chezmoi/null_mutator.go
@@ -27,6 +27,11 @@ func (nullMutator) Rename(string, string) error {
 	return nil
 }
 
+// Stat implements Mutator.Stat.
+func (nullMutator) Stat(string) (os.FileInfo, error) {
+	return nil, nil
+}
+
 // WriteFile implements Mutator.WriteFile.
 func (nullMutator) WriteFile(string, []byte, os.FileMode, []byte) error {
 	return nil