add variabletostring processor

SharedProcessors/VariableToString.py

@@ -0,0 +1,52 @@
+#!/usr/local/autopkg/python
+#
+# James Stewart @JGStew - 2023
+#
+"""See docstring for VariableToString class"""
+
+from autopkglib import (  # pylint: disable=import-error,wrong-import-position,unused-import
+    Processor,
+    ProcessorError,
+)
+
+__all__ = ["VariableToString"]
+
+
+class VariableToString(Processor):
+    """Reads a variable and returns it as a string."""
+
+    description = __doc__
+
+    input_variables = {
+        "input_variable": {
+            "required": True,
+            "description": "The variable to read from.",
+        },
+        "output_variable": {
+            "required": False,
+            "description": "Name of the output variable to store the value.",
+        },
+    }
+    output_variables = {}
+
+    __doc__ = description
+
+    def main(self):
+        """Execution starts here"""
+        input_variable = self.env.get("input_variable", "")
+        output_variable = self.env.get("output_variable", input_variable)
+
+        value = str(self.env.get(input_variable))
+
+        if value is not None:
+            self.env[output_variable] = value
+            self.output_variables[output_variable] = {
+                "description": "the custom output"
+            }
+        else:
+            raise ProcessorError(f"Variable not found.")
+
+
+if __name__ == "__main__":
+    PROCESSOR = VariableToString()
+    PROCESSOR.execute_shell()

Test-Recipes/VariableToString.test.recipe.yaml

@@ -0,0 +1,26 @@
+---
+Description: Test VariableToString Processor
+Identifier: com.github.jgstew.test.VariableToString
+Input:
+  NAME: VariableToStringTest
+  float: 1.2
+  int: 1
+MinimumVersion: "2.3"
+Process:
+  - Processor: com.github.jgstew.SharedProcessors/VariableToString
+    Arguments:
+      input_variable: float
+
+  - Processor: com.github.jgstew.SharedProcessors/AssertInputContainsString
+    Arguments:
+      input_string: "%float%"
+      assert_string: 1.2
+
+  - Processor: com.github.jgstew.SharedProcessors/VariableToString
+    Arguments:
+      input_variable: int
+
+  - Processor: com.github.jgstew.SharedProcessors/AssertInputContainsString
+    Arguments:
+      input_string: "%int%"
+      assert_string: 1