Check for readthedocs file with yaml extension

docs/spec.rst

@@ -12,8 +12,8 @@ Creating a build works like this:
 
 ``rtd-build`` will then perform the following actions:
 
-- it searches for all ``readthedocs.yml`` files below the current directory
-  and merges all found files into a list of configurations
+- it searches for all ``readthedocs.yml``, ``.readthedocs.yml``, or ``readthedocs.yaml`` files below the current
+  directory and merges all found files into a list of configurations
 - it iterates over all configurations (order is not garuanteed) and performs
   the following actions for each:
 

integration_tests/minimal_project/readthedocs.yaml

@@ -0,0 +1,2 @@
+name: docs
+type: sphinx

readthedocs_build/config/config.py

@@ -14,7 +14,7 @@
     'load', 'BuildConfig', 'ConfigError', 'InvalidConfig', 'ProjectConfig')
 
 
-CONFIG_FILENAMES = ('readthedocs.yml', '.readthedocs.yml')
+CONFIG_FILENAME_REGEX = r'\.?readthedocs.ya?ml'
 
 
 BASE_INVALID = 'base-invalid'
@@ -29,7 +29,7 @@
 
 DOCKER_DEFAULT_IMAGE = 'readthedocs/build'
 DOCKER_DEFAULT_VERSION = '2.0'
-# These map to coordisponding settings in the .org,
+# These map to corresponding settings in the .org,
 # so they haven't been renamed.
 DOCKER_IMAGE = '{}:{}'.format(DOCKER_DEFAULT_IMAGE, DOCKER_DEFAULT_VERSION)
 DOCKER_IMAGE_SETTINGS = {
@@ -433,14 +433,10 @@ def load(path, env_config):
     The config will be validated.
     """
 
-    filename = find_one(path, CONFIG_FILENAMES)
+    filename = find_one(path, CONFIG_FILENAME_REGEX)
 
     if not filename:
-        files = '{}'.format(', '.join(map(repr, CONFIG_FILENAMES[:-1])))
-        if files:
-            files += ' or '
-        files += '{!r}'.format(CONFIG_FILENAMES[-1])
-        raise ConfigError('No files {} found'.format(files),
+        raise ConfigError('No files with regex \'{}\' found'.format(CONFIG_FILENAME_REGEX),
                           code=CONFIG_REQUIRED)
     build_configs = []
     with open(filename, 'r') as file:

readthedocs_build/config/find.py

@@ -1,16 +1,17 @@
 import os
+import re
 
 
-def find_all(path, filenames):
+def find_all(path, filename_regex):
     path = os.path.abspath(path)
     for root, dirs, files in os.walk(path, topdown=True):
         dirs.sort()
-        for filename in filenames:
-            if filename in files:
+        for filename in files:
+            if re.match(filename_regex, filename):
                 yield os.path.abspath(os.path.join(root, filename))
 
 
-def find_one(path, filenames):
-    for _path in find_all(path, filenames):
+def find_one(path, filename_regex):
+    for _path in find_all(path, filename_regex):
         return _path
     return ''

readthedocs_build/config/test_config.py

@@ -48,6 +48,13 @@
 '''
 }
 
+yaml_extension_config_dir = {
+    'readthedocs.yaml': '''\
+name: docs
+type: sphinx
+'''
+}
+
 
 multiple_config_dir = {
     'readthedocs.yml': '''
@@ -95,6 +102,14 @@ def test_minimal_config(tmpdir):
     assert isinstance(build, BuildConfig)
 
 
+def test_yaml_extension(tmpdir):
+    """ Make sure it's capable of loading the 'readthedocs' file with a 'yaml' extension. """
+    apply_fs(tmpdir, yaml_extension_config_dir)
+    base = str(tmpdir)
+    config = load(base, env_config)
+    assert len(config) == 1
+
+
 def test_build_config_has_source_file(tmpdir):
     base = str(apply_fs(tmpdir, minimal_config_dir))
     build = load(base, env_config)[0]

readthedocs_build/config/test_find.py

@@ -9,15 +9,15 @@
 
 def test_find_no_files(tmpdir):
     with tmpdir.as_cwd():
-        paths = list(find_all(os.getcwd(), ('readthedocs.yml',)))
+        paths = list(find_all(os.getcwd(), r'readthedocs.yml'))
     assert len(paths) == 0
 
 
 def test_find_at_root(tmpdir):
     apply_fs(tmpdir, {'readthedocs.yml': '', 'otherfile.txt': ''})
 
     base = str(tmpdir)
-    paths = list(find_all(base, ('readthedocs.yml',)))
+    paths = list(find_all(base, r'readthedocs\.yml'))
     assert paths == [
         os.path.abspath(os.path.join(base, 'readthedocs.yml'))
     ]
@@ -39,11 +39,11 @@ def test_find_nested(tmpdir):
     apply_fs(tmpdir, {'first/readthedocs.yml': ''})
 
     base = str(tmpdir)
-    paths = list(find_all(base, ('readthedocs.yml',)))
-    assert set(paths) == set([
+    paths = set(list(find_all(base, r'readthedocs\.yml')))
+    assert paths == {
         str(tmpdir.join('first', 'readthedocs.yml')),
         str(tmpdir.join('third', 'readthedocs.yml')),
-    ])
+    }
 
 
 def test_find_multiple_files(tmpdir):
@@ -63,21 +63,12 @@ def test_find_multiple_files(tmpdir):
     apply_fs(tmpdir, {'first/readthedocs.yml': ''})
 
     base = str(tmpdir)
-    paths = list(find_all(base, ('readthedocs.yml',
-                                 '.readthedocs.yml')))
-    assert paths == [
+    paths = set(list(find_all(base, r'\.?readthedocs\.yml')))
+    assert paths == {
         str(tmpdir.join('first', 'readthedocs.yml')),
         str(tmpdir.join('first', '.readthedocs.yml')),
         str(tmpdir.join('third', 'readthedocs.yml')),
-    ]
-
-    paths = list(find_all(base, ('.readthedocs.yml',
-                                 'readthedocs.yml')))
-    assert paths == [
-        str(tmpdir.join('first', '.readthedocs.yml')),
-        str(tmpdir.join('first', 'readthedocs.yml')),
-        str(tmpdir.join('third', 'readthedocs.yml')),
-    ]
+    }
 
 
 @pytest.mark.skipif(not six.PY2, reason='Only for python2')
@@ -87,6 +78,6 @@ def test_find_unicode_path(tmpdir):
     assert isinstance(base_path, str)
     unicode_base_path = base_path.decode('utf-8')
     assert isinstance(unicode_base_path, unicode)
-    path = find_one(unicode_base_path, ('readthedocs.yml',))
+    path = find_one(unicode_base_path, r'readthedocs\.yml')
     assert path == ''
     assert False, 'The UnicodeDecodeError was not raised'