src/zlevis*: rename and add versioning

Renamed zlevis binaries for versioning capability with meson.

src/zlevis-decrypt.in

@@ -3,10 +3,13 @@
 # Exit immediately if a command exits with a non-zero status
 set -e
 
-# Summary of the script's functionality
+# Summary of the functionality of zlevis-decrypt
 summary="Decrypts a JWE using a TPM2.0 chip"
 
-# TPM2.0 owner hierarchy to be used by the Operating System
+# Version of zlevis
+version="@VERSION@"
+
+# TPM2.0 owner hierarchy to be used by the operating system
 auth="o"
 
 # Display summary if requested
@@ -15,6 +18,12 @@ if [ "$1" = "--summary" ]; then
     exit 0
 fi
 
+# Display version if requested
+if [ "$1" = "--version" ]; then
+    echo "$version"
+    exit 0
+fi
+
 # Display usage information if input is from a terminal
 if [ -t 0 ]; then
     exec >&2

src/zlevis-encrypt.in

@@ -3,9 +3,12 @@
 # Exit immediately if a command exits with a non-zero status
 set -e
 
-# Summary of the script's functionality
+# Summary of the functionality of zlevis-encrypt
 summary="Encrypts using a TPM2.0 chip binding policy"
 
+# Version of zlevis
+version="@VERSION@"
+
 # TPM2.0 owner hierarchy to be used by the Operating System
 auth="o"
 
@@ -18,6 +21,12 @@ if [ "$1" = "--summary" ]; then
     exit 0
 fi
 
+# Display version if requested
+if [ "$1" = "--version" ]; then
+    echo "$version"
+    exit 0
+fi
+
 # Display usage information if input is from a terminal
 if [ -t 0 ]; then
     exec >&2

src/zlevis.in

@@ -3,15 +3,24 @@
 # Exit immediately if a command exits with a non-zero status
 set -e
 
-# Summary of the script's functionality
+# Summary of the functionality of zlevis
 summary="A tool that enables automatic decryption of ZFS rpools with TPM2"
 
+# Version of zlevis
+version="@VERSION@"
+
 # Display summary if requested
 if [ "$1" = "--summary" ]; then
     echo "$summary"
     exit 0
 fi
 
+# Display version if requested
+if [ "$1" = "--version" ]; then
+    echo "$version"
+    exit 0
+fi
+
 # Function to display usage information of zlevis
 info() {
     exec >&2
@@ -48,4 +57,4 @@ else
 fi
 
 # Exit with the status of the last command
-exit $?
+exit $?