filelist/*: support comment lines starting with # (MR 41)

doc/mkinitfs.1.scd

@@ -100,6 +100,9 @@ create/manage. mkinitfs reads configuration from */usr/share/mkinitfs* first, an
 	path(s) under the relevant directory in */etc/mkinitfs*, and changing
 	the destination path.
 
+	Any lines in these files that start with *#* are considered comments, and
+	skipped.
+
 ## /usr/share/mkinitfs/hooks, /etc/mkinitfs/hooks
 ## /usr/share/mkinitfs/hooks-extra*, /etc/mkinitfs/hooks-extra
 
@@ -121,12 +124,18 @@ create/manage. mkinitfs reads configuration from */usr/share/mkinitfs* first, an
 	Modules are installed in the initramfs archive under the same path they
 	exist on the system where mkinitfs is executed.
 
+	Any lines in these files that start with *#* are considered comments, and
+	skipped.
+
 ## /usr/share/mkinitfs/dirs, /etc/mkinitfs/dirs
 
 	Files with the *.dirs* extension in these directories are lists of
 	directories to create within the initramfs. There is no *-extra* variant,
 	since directories are of negligible size.
 
+	Any lines in these files that start with *#* are considered comments, and
+	skipped.
+
 # BOOT-DEPLOY
 
 After generating archives, mkinitfs will execute *boot-deploy*, using *$PATH* to

internal/filelist/hookdirs/hookdirs.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"gitlab.com/postmarketOS/postmarketos-mkinitfs/internal/filelist"
 )
@@ -44,7 +45,7 @@ func (h *HookDirs) List() (*filelist.FileList, error) {
 		s := bufio.NewScanner(f)
 		for s.Scan() {
 			dir := s.Text()
-			if len(dir) == 0 {
+			if len(dir) == 0 || strings.HasPrefix(dir, "#") {
 				continue
 			}
 

internal/filelist/hookfiles/hookfiles.go

@@ -59,7 +59,7 @@ func slurpFiles(fd io.Reader) (*filelist.FileList, error) {
 	s := bufio.NewScanner(fd)
 	for s.Scan() {
 		line := s.Text()
-		if len(line) == 0 {
+		if len(line) == 0 || strings.HasPrefix(line, "#") {
 			continue
 		}
 

internal/filelist/modules/modules.go

@@ -95,10 +95,9 @@ func slurpModules(fd io.Reader, modDir string) (*filelist.FileList, error) {
 	s := bufio.NewScanner(fd)
 	for s.Scan() {
 		line := s.Text()
-		if len(line) == 0 {
+		if len(line) == 0 || strings.HasPrefix(line, "#") {
 			continue
 		}
-
 		dir, file := filepath.Split(line)
 		if file == "" {
 			// item is a directory
@@ -199,7 +198,7 @@ func getModuleDeps(modName string, modulesDep io.Reader) ([]string, error) {
 	s := bufio.NewScanner(modulesDep)
 	for s.Scan() {
 		line := s.Text()
-		if len(line) == 0 {
+		if len(line) == 0 || strings.HasPrefix(line, "#") {
 			continue
 		}