ensure that a dot is a dot in the hook

As we deal with regex matchers here the dots are treated as wildcards if
we don't take care of escaping them. Not very likely that this could be
a real-world problem, but just to be sure.

debian/apt.auto-removal.sh

@@ -63,13 +63,10 @@ then
 	previous_version=
 fi
 
-kernels=$(sort -u <<EOF
-$latest_version
+kernels="$(echo "$latest_version
 $installed_version
 $running_version
-$previous_version
-EOF
-)
+$previous_version" | sort -u | sed -e 's#\.#\\.#g' )"
 
 generateconfig() {
 	cat <<EOF

test/integration/test-kernel-helper-autoremove

@@ -20,8 +20,10 @@ CURRENTKERNEL="linux-image-$(uname -r)"
 insertinstalledpackage "$CURRENTKERNEL" 'amd64' '1'
 insertinstalledpackage 'linux-image-1.0.0-2-generic' 'amd64' '1.0.0-2'
 insertinstalledpackage 'linux-image-100.0.0-1-generic' 'amd64' '100.0.0-1'
+# ensure that the '.' is really a dot and not a wildcard
+insertinstalledpackage 'linux-headers-1000000-1-generic' 'amd64' '100.0.0-1'
 
-testsuccess aptmark auto "$CURRENTKERNEL" 'linux-image-1.0.0-2-generic' 'linux-image-100.0.0-1-generic'
+testsuccess aptmark auto "$CURRENTKERNEL" 'linux-image-1.0.0-2-generic' 'linux-image-100.0.0-1-generic' 'linux-headers-1000000-1-generic'
 
 cat > ./fake-dpkg <<EOF
 #!/bin/sh
@@ -53,40 +55,46 @@ testprotected() {
 	grep -q '^[A-Z]: ' protected.list && catfail || msgpass
 
 	msgtest 'Check kernel autoremoval protection list includes' 'most recent kernel'
-	grep -q '^\^linux-image-100\.0\.0-1-generic\$$' protected.list && msgpass || catfail
+	grep -q '^\^linux-image-100\\\.0\\\.0-1-generic\$$' protected.list && msgpass || catfail
 
 	msgtest 'Check kernel autoremoval protection list includes' 'running kernel'
-	grep -q "^\\^linux-image-$(uname -r)\\\$\$" protected.list && msgpass || catfail
+	grep -q "^\\^linux-image-$(uname -r | sed -e 's#\.#\\\\.#g')\\\$\$" protected.list && msgpass || catfail
 }
 
 testequal "Reading package lists...
 Building dependency tree...
 Reading state information...
 The following packages will be REMOVED:
+   linux-headers-1000000-1-generic (100.0.0-1)
    linux-image-1.0.0-2-generic (1.0.0-2)
    linux-image-100.0.0-1-generic (100.0.0-1)
    $CURRENTKERNEL (1)
-0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
+0 upgraded, 0 newly installed, 4 to remove and 0 not upgraded.
+Remv linux-headers-1000000-1-generic [100.0.0-1]
 Remv linux-image-1.0.0-2-generic [1.0.0-2]
 Remv linux-image-100.0.0-1-generic [100.0.0-1]
 Remv $CURRENTKERNEL [1]" aptget autoremove -sV
 
 testprotected
 msgtest 'Check kernel autoremoval protection list does not include' 'old kernel'
-grep -q '^\^linux-image-1\.0\.0-2-generic\$$' protected.list && catfail || msgpass
+grep -q '^\^linux-image-1\\\.0\\\.0-2-generic\$$' protected.list && catfail || msgpass
 
 testequal 'Reading package lists...
 Building dependency tree...
 Reading state information...
 The following packages will be REMOVED:
-  linux-image-1.0.0-2-generic
-0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
+  linux-headers-1000000-1-generic linux-image-1.0.0-2-generic
+0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
+Remv linux-headers-1000000-1-generic [100.0.0-1]
 Remv linux-image-1.0.0-2-generic [1.0.0-2]' aptget autoremove -s
 
 testprotected 1.0.0-2-generic
 msgtest 'Check kernel autoremoval protection list includes' 'installed kernel'
-grep -q '^\^linux-image-1\.0\.0-2-generic\$$' protected.list && msgpass || catfail
+grep -q '^\^linux-image-1\\\.0\\\.0-2-generic\$$' protected.list && msgpass || catfail
 testequal 'Reading package lists...
 Building dependency tree...
 Reading state information...
-0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.' aptget autoremove -s
+The following packages will be REMOVED:
+  linux-headers-1000000-1-generic
+0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
+Remv linux-headers-1000000-1-generic [100.0.0-1]' aptget autoremove -s