Move creating a frozen recipe into recipes.py

Also adds .package_names and .module_names properties. Call
recipe.freeze with a list of NEVRA dependencies and it will return a new
Recipe object with all of the packages and modules set to the depsolved
version.

src/pylorax/api/recipes.py

@@ -25,6 +25,7 @@ import os
 import pytoml as toml
 import semantic_version as semver
 
+from pylorax.api.projects import dep_evra
 from pylorax.base import DataHolder
 from pylorax.sysutils import joinpaths
 
@@ -62,6 +63,16 @@ class Recipe(dict):
                             modules=modules,
                             packages=packages)
 
+    @property
+    def package_names(self):
+        """Return the names of the packages"""
+        return map(lambda p: p["name"], self["packages"] or [])
+
+    @property
+    def module_names(self):
+        """Return the names of the modules"""
+        return map(lambda m: m["name"], self["modules"] or [])
+
     @property
     def filename(self):
         """Return the Recipe's filename
@@ -108,6 +119,28 @@ class Recipe(dict):
         # Return the new version
         return str(semver.Version(self["version"]))
 
+    def freeze(self, deps):
+        """ Return a new Recipe with full module and package NEVRA
+
+        :param deps: A list of dependency NEVRA to use to fill in the modules and packages
+        :type deps: list(
+        :returns: A new Recipe object
+        :rtype: Recipe
+        """
+        module_names = self.module_names
+        package_names = self.package_names
+
+        new_modules = []
+        new_packages = []
+        for dep in deps:
+            if dep["name"] in package_names:
+                new_packages.append(RecipePackage(dep["name"], dep_evra(dep)))
+            elif dep["name"] in module_names:
+                new_modules.append(RecipeModule(dep["name"], dep_evra(dep)))
+
+        return Recipe(self["name"], self["description"], self["version"],
+                      new_modules, new_packages)
+
 class RecipeModule(dict):
     def __init__(self, name, version):
         dict.__init__(self, name=name, version=version)

src/pylorax/api/v0.py

@@ -620,11 +620,11 @@ from flask import jsonify, request
 
 from pylorax.api.compose import start_build, compose_types
 from pylorax.api.crossdomain import crossdomain
-from pylorax.api.projects import projects_list, projects_info, projects_depsolve, dep_evra
+from pylorax.api.projects import projects_list, projects_info, projects_depsolve
 from pylorax.api.projects import modules_list, modules_info, ProjectsError
 from pylorax.api.recipes import list_branch_files, read_recipe_commit, recipe_filename, list_commits
 from pylorax.api.recipes import recipe_from_dict, recipe_from_toml, commit_recipe, delete_recipe, revert_recipe
-from pylorax.api.recipes import tag_recipe_commit, recipe_diff, Recipe, RecipePackage, RecipeModule
+from pylorax.api.recipes import tag_recipe_commit, recipe_diff
 from pylorax.api.workspace import workspace_read, workspace_write, workspace_delete
 
 # The API functions don't actually get called by any code here
@@ -918,8 +918,8 @@ def v0_api(api):
 
             # Combine modules and packages and depsolve the list
             # TODO include the version/glob in the depsolving
-            module_names = map(lambda m: m["name"], recipe["modules"] or [])
-            package_names = map(lambda p: p["name"], recipe["packages"] or [])
+            module_names = recipe.module_names
+            package_names = recipe.package_names
             projects = sorted(set(module_names+package_names), key=lambda n: n.lower())
             deps = []
             try:
@@ -929,20 +929,7 @@ def v0_api(api):
                 errors.append({"recipe":recipe_name, "msg":str(e)})
                 log.error("(v0_recipes_freeze) %s", str(e))
 
-            # Change the recipe's modules and packages to use the depsolved version
-            new_modules = []
-            new_packages = []
-            for dep in deps:
-                if dep["name"] in package_names:
-                    new_packages.append(RecipePackage(dep["name"], dep_evra(dep)))
-                elif dep["name"] in module_names:
-                    new_modules.append(RecipeModule(dep["name"], dep_evra(dep)))
-
-            recipes.append({"recipe":Recipe(recipe["name"],
-                                            recipe["description"],
-                                            recipe["version"],
-                                            new_modules,
-                                            new_packages)})
+            recipes.append({"recipe": recipe.freeze(deps)})
 
         return jsonify(recipes=recipes, errors=errors)