From b6d52b504fc7eefc3f405f75463d9e818471ee99 Mon Sep 17 00:00:00 2001
From: Kairui Song <kasong@redhat.com>
Date: Mon, 11 Mar 2019 19:46:19 +0800
Subject: [PATCH] squash: fix and simplify required_in_root

If required target is a symbol link, create the link then following the
link. If it's a directory, create new directory, else just move it.

Signed-off-by: Kairui Song <kasong@redhat.com>
(cherry picked from commit 11ce69e4bd9172cf54251ea62bb4a5ead1700fd6)

Resolves: #1691705
---
 dracut.sh | 42 +++++++++++++++++++-----------------------
 1 file changed, 19 insertions(+), 23 deletions(-)

diff --git a/dracut.sh b/dracut.sh
index a0158f22..6de88b3e 100755
--- a/dracut.sh
+++ b/dracut.sh
@@ -1811,30 +1811,26 @@ if dracut_module_included "squash"; then
             required_in_root $(dirname $file)
         fi
 
-        if [[ -d $_sqsh_file ]]; then
-            if [[ -L $_sqsh_file ]]; then
-                cp --preserve=all -P $_sqsh_file $_init_file
-            else
-                mkdir $_init_file
-            fi
+        if [[ -L $_sqsh_file ]]; then
+          cp --preserve=all -P $_sqsh_file $_init_file
+          _sqsh_file=$(realpath $_sqsh_file 2>/dev/null)
+          if [[ -e $_sqsh_file ]] && [[ "$_sqsh_file" == "$squash_dir"* ]]; then
+            # Relative symlink
+            required_in_root ${_sqsh_file#$squash_dir/}
+            return
+          fi
+          if [[ -e $squash_dir$_sqsh_file ]]; then
+            # Absolute symlink
+            required_in_root ${_sqsh_file#/}
+            return
+          fi
+          required_in_root ${module_spec#$squash_dir/}
         else
-            if [[ -L $_sqsh_file ]]; then
-                cp --preserve=all -P $_sqsh_file $_init_file
-                _sqsh_file=$(realpath $_sqsh_file 2>/dev/null)
-                if [[ -e $_sqsh_file ]] && [[ "$_sqsh_file" == "$squash_dir"* ]]; then
-                    # Relative symlink
-                    required_in_root ${_sqsh_file#$squash_dir/}
-                    return
-                fi
-                if [[ -e $squash_dir$_sqsh_file ]]; then
-                    # Absolute symlink
-                    required_in_root ${_sqsh_file#/}
-                    return
-                fi
-                required_in_root ${module_spec#$squash_dir/}
-            else
-                mv $_sqsh_file $_init_file
-            fi
+          if [[ -d $_sqsh_file ]]; then
+            mkdir $_init_file
+          else
+            mv $_sqsh_file $_init_file
+          fi
         fi
     }