shells_path is now a directory of .shell files

Matches the existing units_path pattern — shells_path points to a
directory that is scanned for .shell files rather than a single
monolithic definitions file.

sample/rex.config

@@ -3,7 +3,7 @@
 	"project_root": 	"$HOME/development/internal/rex/sample",
   	"units_path":		"units/",
   	"logs_path": 		"logs/",
-	"shells_path":		"shells/shells.definitions",
+	"shells_path":		"shells/",
   	"config_version": "5"
   }
 }

sample/shells/bash.shell

@@ -5,12 +5,6 @@
 			"path": 		"/usr/bin/bash",
 			"execution_arg": 	"-c",
 			"source_cmd":		"source"
-		},
-		{
-			"name":			"ksh",
-			"path":			"/usr/bin/ksh",
-			"execution_arg":	"-c",
-			"source_cmd":		"source"
 		}
 	]
 }

sample/shells/ksh.shell

@@ -0,0 +1,10 @@
+{
+	"shells":	[
+		{
+			"name":			"ksh",
+			"path":			"/usr/bin/ksh",
+			"execution_arg":	"-c",
+			"source_cmd":		"source"
+		}
+	]
+}

src/config/Config.cpp

@@ -197,17 +197,34 @@ void Conf::checkPathExists( std::string keyname, const std::string &path ) {
  */
 void Conf::load_shells() {
     this->slog.log_task( E_DEBUG, "SHELLS", "Loading shells..." );
+
+    std::vector<std::string> shell_files;
+
+    if ( is_dir( this->shell_definitions_path ) )
+    {
+        get_shells_from_dir( &shell_files, this->shell_definitions_path );
+    }
+
+    if ( is_file( this->shell_definitions_path ) )
+    {
+        shell_files.push_back( this->shell_definitions_path );
+    }
+
+    this->slog.log_task( E_INFO, "SHELLS", "Shell files found: " + std::to_string( shell_files.size() ) );
+
+    for ( int i = 0; i < shell_files.size(); i++ )
+    {
         try {
-        // load the test file.
-        this->load_json_file( this->shell_definitions_path );
+            this->load_json_file( shell_files[i] );
         } catch (std::exception& e) {
-        this->slog.log_task( E_FATAL, "SHELLS", "Unable to load shell definition file: '" + this->shell_definitions_path + "'. Error: " + e.what());
+            this->slog.log_task( E_FATAL, "SHELLS", "Unable to load shell definition file: '" + shell_files[i] + "'. Error: " + e.what());
             throw ConfigLoadException("Parsing error in shell definitions file.");
         }
+
         Json::Value jbuff;
 
-    if ( this-> get_serialized( jbuff, "shells" ) != 0 ) {
-        this->slog.log_task( E_FATAL, "SHELLS", "Parsing error: '" + this->shell_definitions_path + "'. Error: 'shells' key not found." );
+        if ( this->get_serialized( jbuff, "shells" ) != 0 ) {
+            this->slog.log_task( E_FATAL, "SHELLS", "Parsing error: '" + shell_files[i] + "'. Error: 'shells' key not found." );
             throw ConfigLoadException("Parsing error in shell definitions file.");
         }
 
@@ -218,6 +235,7 @@ void Conf::load_shells() {
             this->shells.push_back( tmp_S );
             this->slog.log_task( E_DEBUG, "SHELLS", "Loaded shell: '" + tmp_S.name + "' (" + tmp_S.path + ")" );
         }
+    }
 }
 
 /**

src/shells/shells.cpp

@@ -62,3 +62,38 @@ int Shell::load_root( Json::Value loader_root )
     }
     return 0;
 }
+
+
+void get_shells_from_dir( std::vector<std::string> * files, std::string path )
+{
+    DIR* dirFile = opendir( path.c_str() );
+    if ( dirFile )
+    {
+        struct dirent* hFile;
+        errno = 0;
+        while (( hFile = readdir( dirFile )) != NULL )
+        {
+            if ( !strcmp( hFile->d_name, "."  ))
+            {
+                continue;
+            }
+            if ( !strcmp( hFile->d_name, ".." ))
+            {
+                continue;
+            }
+
+            // hidden files
+            if ( hFile->d_name[0] == '.' )
+            {
+                continue;
+            }
+
+            if ( strstr( hFile->d_name, ".shell" ))
+            {
+                std::string full_path = path + "/" + hFile->d_name;
+                files->push_back( full_path );
+            }
+        }
+        closedir( dirFile );
+    }
+}

src/shells/shells.h

@@ -2,7 +2,11 @@
 #define REX_SHELLS_H
 
 #include "../json_support/JSON.h"
+#include "../misc/helpers.h"
 #include <string>
+#include <string.h>
+#include <vector>
+#include <dirent.h>
 
 class Shell: public JSON_Loader {
     public:
@@ -23,4 +27,6 @@ class Shell: public JSON_Loader {
 
 };
 
+void get_shells_from_dir( std::vector<std::string> * files, std::string path );
+
 #endif //REX_SHELLS_H