Merge pull request '[I164] check for perl module dependencies' (#203) from I164_check-for-perl-module-dependencies into main

Reviewed-on: #203

GETTING_STARTED.md

@@ -41,8 +41,9 @@ apt install libconfig-std-perl \
 ## Using CPAN to install the modules
 
 A cross platform method to install the needed modules is the Perl CPAN application. 
-Make sure both the [make](https://www.gnu.org/software/make/manual/make.html) 
+Make sure that the [gcc](https://www.gnu.org/software/gcc/), 
-command and the [cpan](https://perldoc.perl.org/CPAN) command are available. 
+[make](https://www.gnu.org/software/make/manual/make.html), 
+and [cpan](https://perldoc.perl.org/CPAN) commands are available. 
 Install them using the operating system's package manager, or from source.
 
 Run commands:
@@ -51,9 +52,21 @@ Run commands:
 cpan Config::Std
 cpan Template
 cpan Template::Plugin::DBI
+cpan Template::Plugin::HTML::Strip
 cpan DBD::SQLite
 cpan Date::Calc
 cpan Tie::DBI
+cpan Text:CSV_XS
+```
+
+## Testing for Perl module dependencies
+
+A bash script is included in the utils directory that will list the Perl modules used by the site-generator and report whether the modules are installed on the current OS.
+
+It can be run from any directory. To run from the utils directory:
+
+```
+./check-dependencies.sh
 ```
 
 # Create the HPR database

README.md

@@ -25,7 +25,7 @@ Static web page generator for the Hacker Public Radio website.
 		- ``GRANT SELECT ON hpr_hpr.* TO 'hpr-generator'@'localhost';``
 		- ``GRANT EXECUTE ON `hpr_hpr`.* TO 'hpr-generator'@'localhost';``
 * Install the needed Perl modules using preferred method (distribution packages, CPAN, etc.)
-    * GetOpt
+    * Getopt::Long
     * Pod::Usage
     * Config::Std
     * Template
@@ -35,7 +35,7 @@ Static web page generator for the Hacker Public Radio website.
     * Template::Plugin::HTML::Strip
     * DBI
     * Tie::DBI
-    * DBD::SQLite or DBD:mysql
+    * DBD::SQLite or DBD::mysql
     * Date::Calc
     * Text::CSV_XS
     * HTML::Entities

site-generator

@@ -122,7 +122,6 @@ use Text::CSV_XS;
 use HTML::Entities qw(encode_entities);
 use Date::Calc;
 use DBI;
-use DBD::SQLite;
 use Tie::DBI;
 use Template;
 use Template::Plugin::Date;

utils/check-dependencies.sh

@@ -0,0 +1,73 @@
+#!/bin/bash - 
+#===============================================================================
+#
+#          FILE: check-dependencies.sh
+# 
+#         USAGE: ./check-dependencies.sh 
+# 
+#   DESCRIPTION: Check that Perl module dependencies for the hpr_generator 
+#		  are installed.
+# 
+#       OPTIONS: ---
+#  REQUIREMENTS: ---
+#          BUGS: ---
+#         NOTES: ---
+#        AUTHOR: Roan "Rho`n" Horning (roan.horning@gmail.com)
+#  ORGANIZATION: 
+#       CREATED: 09/05/2024 09:55:00 PM
+#      REVISION:  ---
+#===============================================================================
+
+set -o nounset                              # Treat unset variables as an error
+
+#---  FUNCTION  ----------------------------------------------------------------
+#          NAME: is_module_installed 
+#   DESCRIPTION: Tests if the supplied module is found on the system 
+#    PARAMETERS: Name of the denpendent Perl module
+#       RETURNS: 0 if not found, 1 if found
+#-------------------------------------------------------------------------------
+function is_module_installed {
+	HR="----------------------"
+	perl -e "use ${1} " 
+	if  [ $? -ne 0 ]
+	then
+		echo ${HR}
+	else
+		echo "Found module ${1}"
+		echo ${HR}
+	fi
+}
+
+MODULES=( \
+	 "Getopt::Long" \
+	 "Pod::Usage" \
+	 "Config::Std" \
+	 "Template" \
+	 "Template::Plugin::File" \
+	 "Template::Plugin::DBI" \
+	 "Template::Plugin::HTML::Strip" \
+	 "DBI" \
+	 "Tie::DBI" \
+	 "DBD::SQLite" \
+	 "DBD::mysql" \
+	 "Date::Calc" \
+	 "Text::CSV_XS" \
+)
+
+echo "The following modules must be installed for the site-generator to function: "
+for module in "${MODULES[@]}"
+do
+	echo "* ${module}"
+done
+echo "When MySQL is used, the DBD:mysql module is required (otherwise it is optional)"
+echo "When SQLite is used, then the DBD:SQLite module is required (otherwise it is optional)"
+
+echo "Scanning for modules ..."
+echo "----------------------"
+
+for module in "${MODULES[@]}"
+do
+	is_module_installed "${module}"
+done
+
+echo "Finished scanning."