Added test utility for building files quickly.

And made use of it in test_egg_info.

1 files changed, 32 insertions, 0 deletions

diff --git a/setuptools/tests/files.py b/setuptools/tests/files.py
new file mode 100644
index 00000000..4364241b
--- /dev/null
+++ b/setuptools/tests/files.py
@@ -0,0 +1,32 @@
+import os
+
+
+def build_files(file_defs, prefix=""):
+    """
+    Build a set of files/directories, as described by the file_defs dictionary.
+
+    Each key/value pair in the dictionary is interpreted as a filename/contents
+    pair. If the contents value is a dictionary, a directory is created, and the
+    dictionary interpreted as the files within it, recursively.
+
+    For example:
+
+    {"README.txt": "A README file",
+     "foo": {
+        "__init__.py": "",
+        "bar": {
+            "__init__.py": "",
+        },
+        "baz.py": "# Some code",
+     }
+    }
+    """
+    for name, contents in file_defs.items():
+        full_name = os.path.join(prefix, name)
+        if isinstance(contents, dict):
+            if not os.path.exists(full_name):
+                os.makedirs(full_name)
+            build_files(contents, prefix=full_name)
+        else:
+            with open(full_name, 'w') as f:
+                f.write(contents)