meson.build: add versioning

Added versioning to the binaries with configuration file in meson.

meson.build

@@ -1,14 +1,8 @@
 # Project definition
-project('zlevis', license: 'GPL3')
+project('zlevis', license: 'GPL3', version: '2.3')
 
-# Define bindir
-bindir = join_paths(get_option('prefix'), get_option('bindir'))
-
-# Define bins list
-bins = []
+# Define bin dir
+bin_dir = join_paths(get_option('prefix'), get_option('bindir'))
 
 # Define subdir with bins
 subdir('src')
-
-# Install bins in bindir
-install_data(bins, install_dir: bindir)

src/meson.build

@@ -1,14 +1,14 @@
-# Find scripts
-main = find_program('zlevis')
-encrypt = find_program('zlevis-encrypt')
-decrypt = find_program('zlevis-decrypt')
+# Find the scripts
+frontend = find_program('zlevis.in')
+encrypt = find_program('zlevis-encrypt.in')
+decrypt = find_program('zlevis-decrypt.in')
 
 # Test the scripts
-test('zlevis', main, args: '--summary')
+test('zlevis', frontend, args: '--summary')
 test('zlevis-encrypt', encrypt, args: '--summary')
 test('zlevis-decrypt', decrypt, args: '--summary')
 
-# Add paths of scripts to bins
-bins += join_paths(meson.current_source_dir(), 'zlevis')
-bins += join_paths(meson.current_source_dir(), 'zlevis-encrypt')
-bins += join_paths(meson.current_source_dir(), 'zlevis-decrypt')
+# Configure the scripts
+configure_file(input: 'zlevis.in', output: 'zlevis', configuration: {'VERSION': meson.project_version()}, install: true, install_dir: bin_dir)
+configure_file(input: 'zlevis-encrypt.in', output: 'zlevis-encrypt', configuration: {'VERSION': meson.project_version()}, install: true, install_dir: bin_dir)
+configure_file(input: 'zlevis-decrypt.in', output: 'zlevis-decrypt', configuration: {'VERSION': meson.project_version()}, install: true, install_dir: bin_dir)

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 $?