fix: improve umask tests and documentation

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

files/files.go

@@ -144,7 +144,6 @@ func (c *Content) WithFileInfoDefaults(umask fs.FileMode) *Content {
 				cc.FileInfo.MTime = info.ModTime()
 			}
 			if cc.FileInfo.Mode == 0 {
-				fmt.Println("files.go:147", info.Mode().String(), (info.Mode() & ^umask).String())
 				cc.FileInfo.Mode = info.Mode() &^ umask
 			}
 			cc.FileInfo.Size = info.Size()
@@ -463,7 +462,6 @@ func addTree(all map[string]*Content, tree *Content, umask os.FileMode) error {
 
 			c.Type = TypeDir
 			c.Destination = NormalizeAbsoluteDirPath(destination)
-			fmt.Println("files.go:446", info.Mode().String(), (info.Mode() &^ umask).String())
 			c.FileInfo = &ContentFileInfo{
 				Owner: "root",
 				Group: "root",
@@ -483,7 +481,6 @@ func addTree(all map[string]*Content, tree *Content, umask os.FileMode) error {
 			c.Source = path
 			c.Destination = NormalizeAbsoluteFilePath(destination)
 			c.Type = TypeFile
-			fmt.Println("files.go:486", d.Type().String(), (d.Type() &^ umask).String())
 			c.FileInfo = &ContentFileInfo{
 				Mode: d.Type() &^ umask,
 			}

files/files_test.go

@@ -2,6 +2,7 @@ package files_test
 
 import (
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"sync"
@@ -44,6 +45,10 @@ contents:
 }
 
 func TestDeepPathsWithGlobAndUmask(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "foo", "bar", "zaz", "file.txt")
+	// create a bunch of files with bad permissions
+	require.NoError(t, os.MkdirAll(filepath.Dir(path), 0o777))
+	require.NoError(t, os.WriteFile(path, nil, 0o777))
 	var config testStruct
 	dec := yaml.NewDecoder(strings.NewReader(`---
 contents:
@@ -53,12 +58,14 @@ contents:
     mode: 0644
     mtime: 2008-01-02T15:04:05Z
 - src: testdata/deep-paths/
-  dst: /bla
+  dst: /bar
+- src: ` + path + `
+  dst: /foo/file.txt
 `))
 	dec.KnownFields(true)
 	err := dec.Decode(&config)
 	require.NoError(t, err)
-	require.Len(t, config.Contents, 2)
+	require.Len(t, config.Contents, 3)
 	parsedContents, err := files.PrepareForPackager(config.Contents, 0o113, "", false)
 	require.NoError(t, err)
 	for _, c := range parsedContents {
@@ -70,7 +77,10 @@ contents:
 			require.Equal(t, "/bla/multi-nested/subdir/c.txt", c.Destination)
 			require.Equal(t, "-rw-r--r--", c.Mode().String())
 		case "testdata/deep-paths/nested1/nested2/a.txt":
-			require.Equal(t, "/bla/nested1/nested2/a.txt", c.Destination)
+			require.Equal(t, "/bar/nested1/nested2/a.txt", c.Destination)
+			require.Equal(t, "-rw-rw-r--", c.Mode().String())
+		case path:
+			require.Equal(t, "/foo/file.txt", c.Destination)
 			require.Equal(t, "-rw-rw-r--", c.Mode().String())
 		}
 	}

nfpm.go

@@ -75,9 +75,7 @@ func ParseWithEnvMapping(in io.Reader, mapping func(string) string) (config Conf
 	}
 
 	config.expandEnvVars()
-
-	WithDefaults(&config.Info)
-
+	config.Info = WithDefaults(config.Info)
 	return config, nil
 }
 
@@ -471,7 +469,7 @@ func Validate(info *Info) (err error) {
 }
 
 // WithDefaults set some sane defaults into the given Info.
-func WithDefaults(info *Info) *Info {
+func WithDefaults(info Info) Info {
 	if info.Platform == "" {
 		info.Platform = "linux"
 	}
@@ -484,6 +482,9 @@ func WithDefaults(info *Info) *Info {
 	if info.Version == "" {
 		info.Version = "v0.0.0-rc0"
 	}
+	if info.Umask == 0 {
+		info.Umask = 0o02
+	}
 
 	switch info.VersionSchema {
 	case "none":

nfpm_test.go

@@ -37,81 +37,95 @@ func TestGet(t *testing.T) {
 }
 
 func TestDefaultsVersion(t *testing.T) {
-	info := &nfpm.Info{
+	info := nfpm.WithDefaults(nfpm.Info{
 		Version:       "v1.0.0",
 		VersionSchema: "semver",
-	}
-	info = nfpm.WithDefaults(info)
+	})
 	require.NotEmpty(t, info.Platform)
 	require.Equal(t, "1.0.0", info.Version)
 	require.Equal(t, "", info.Release)
 	require.Equal(t, "", info.Prerelease)
 
-	info = &nfpm.Info{
+	info = nfpm.WithDefaults(nfpm.Info{
 		Version: "v1.0.0-rc1",
-	}
-	info = nfpm.WithDefaults(info)
+	})
 	require.Equal(t, "1.0.0", info.Version)
 	require.Equal(t, "", info.Release)
 	require.Equal(t, "rc1", info.Prerelease)
 
-	info = &nfpm.Info{
+	info = nfpm.WithDefaults(nfpm.Info{
 		Version: "v1.0.0-beta1",
-	}
-	info = nfpm.WithDefaults(info)
+	})
 	require.Equal(t, "1.0.0", info.Version)
 	require.Equal(t, "", info.Release)
 	require.Equal(t, "beta1", info.Prerelease)
 
-	info = &nfpm.Info{
+	info = nfpm.WithDefaults(nfpm.Info{
 		Version:    "v1.0.0-1",
 		Release:    "2",
 		Prerelease: "beta1",
-	}
-	info = nfpm.WithDefaults(info)
+	})
 	require.Equal(t, "1.0.0", info.Version)
 	require.Equal(t, "2", info.Release)
 	require.Equal(t, "beta1", info.Prerelease)
 
-	info = &nfpm.Info{
+	info = nfpm.WithDefaults(nfpm.Info{
 		Version:    "v1.0.0-1+xdg2",
 		Release:    "2",
 		Prerelease: "beta1",
-	}
-	info = nfpm.WithDefaults(info)
+	})
 	require.Equal(t, "1.0.0", info.Version)
 	require.Equal(t, "2", info.Release)
 	require.Equal(t, "beta1", info.Prerelease)
 
-	info = &nfpm.Info{
+	info = nfpm.WithDefaults(nfpm.Info{
 		Version:       "this.is.my.version",
 		VersionSchema: "none",
 		Release:       "2",
 		Prerelease:    "beta1",
-	}
-	info = nfpm.WithDefaults(info)
+	})
 	require.Equal(t, "this.is.my.version", info.Version)
 	require.Equal(t, "2", info.Release)
 	require.Equal(t, "beta1", info.Prerelease)
 }
 
 func TestDefaults(t *testing.T) {
-	info := &nfpm.Info{
-		Platform:    "darwin",
-		Version:     "2.4.1",
-		Description: "no description given",
-	}
-	got := nfpm.WithDefaults(info)
-	require.Equal(t, info, got)
+	t.Run("all given", func(t *testing.T) {
+		info := nfpm.Info{
+			Platform:    "darwin",
+			Version:     "2.4.1",
+			Description: "no description given",
+			Arch:        "arm64",
+			Overridables: nfpm.Overridables{
+				Umask: 0o112,
+			},
+		}
+		got := nfpm.WithDefaults(info)
+		require.Equal(t, info, got)
+	})
+	t.Run("none given", func(t *testing.T) {
+		got := nfpm.WithDefaults(nfpm.Info{})
+		require.Equal(t, nfpm.Info{
+			Platform:    "linux",
+			Arch:        "amd64",
+			Version:     "0.0.0",
+			Prerelease:  "rc0",
+			Description: "no description given",
+			Overridables: nfpm.Overridables{
+				Umask: 0o002,
+			},
+		}, got)
+	})
 }
 
 func TestPrepareForPackager(t *testing.T) {
 	t.Run("dirs", func(t *testing.T) {
-		info := nfpm.Info{
+		info := nfpm.WithDefaults(nfpm.Info{
 			Name:    "as",
 			Arch:    "asd",
 			Version: "1.2.3",
 			Overridables: nfpm.Overridables{
+				Umask: 0o032,
 				Contents: []*files.Content{
 					{
 						Destination: "/usr/share/test",
@@ -127,7 +141,7 @@ func TestPrepareForPackager(t *testing.T) {
 					},
 				},
 			},
-		}
+		})
 		require.NoError(t, nfpm.PrepareForPackager(&info, ""))
 		require.Len(t, info.Overridables.Contents, 5)
 		asdFile := info.Overridables.Contents[0]

www/docs/configuration.md

@@ -195,15 +195,6 @@ contents:
     dst: /etc/bar.conf
     type: config|noreplace
 
-# Umask to be used on files without explicit mode set.
-#
-# By default, nFPM will use the mode of the original file in the file system.
-# This may lead to issues if these files are checkout out in Git, for example,
-# as it won't keep all the permissions on fresh checkouts.
-#
-# 0o002 would remove the world-writable permission, for example.
-umask: 0o002
-
   # These files are not actually present in the package, but the file names
   # are added to the package header. From the RPM directives documentation:
   #
@@ -261,6 +252,20 @@ umask: 0o002
     file_info:
       mode: 0700
 
+# Umask to be used on files without explicit mode set.
+#
+# By default, nFPM will inherit the mode of the original file that's being
+# added.
+# This may lead to issues if these files are checkout out in Git, for example,
+# as it won't keep all the permissions on fresh checkouts, or if the local
+# system has a problematic umask setting.
+#
+# This setting allows to set the umask for all files that are added to the
+# package without a specific file_info.mode set.
+#
+# Default: 0o002 (will remove world-writable permissions)
+umask: 0o002
+
 # Scripts to run at specific stages. (overridable)
 scripts:
   preinstall: ./scripts/preinstall.sh