refactored project structure

src/modules/shell.c

@@ -0,0 +1,25 @@
+#include "fastfetch.h"
+
+#include <string.h>
+
+void ffPrintShell(FFstate* state)
+{
+    if(ffPrintCachedValue(state, "Shell"))
+        return;
+
+    char* shellPath = getenv("SHELL");
+    if(shellPath == NULL)
+    {
+        ffPrintError(state, "Shell", "getenv(\"SHELL\") == NULL");
+        return;
+    }
+
+    char* shellName = strrchr(shellPath, '/');
+
+    if(shellName == NULL)
+        shellName = shellPath;
+    else if(shellName[0] == '/')
+        ++shellName;
+
+    ffPrintAndSaveCachedValue(state, "Shell", shellName);
+}