Ignore subdirectories by pattern

[skettlitz]

Currently ignoring subdirectories by pattern is not possible.

What works is:

1. ignoring files by pattern by setting 'IGNORE_FILES = ["pattern1_","pattern2_","._","__"]'
2. ignoring specific directories by setting 'PATH_EXCLUDE = ["maindir1","maindir2/subdir"]'

What I'd suggest is another way to ignore subdirectories by pattern.

The following code adds a configuration variable 'IGNORE_SUBDIRS' analogous to 'IGNORE_FILES'.

diff --git a/pelican/generators.py b/pelican/generators.py
index 75bd6b2..20942ab 100644
--- a/pelican/generators.py
+++ b/pelican/generators.py
@@ -139,6 +139,11 @@ class Generator(object):
                     for e in exclusions_by_dirpath.get(dirpath, ()):
                         if e in dirs:
                             dirs.remove(e)
+                    for dir in dirs:
+                        #check IGNORE_SUBDIRS
+                        ignores = self.settings['IGNORE_SUBDIRS']
+                        if any(fnmatch.fnmatch(dir, ignore) for ignore in ignores):
+                            dirs.remove(dir)
                     reldir = os.path.relpath(dirpath, self.path)
                     for f in temp_files:
                         fp = os.path.join(reldir, f)

and

diff --git a/pelican/settings.py b/pelican/settings.py
index 0d69c08..c675f50 100644
--- a/pelican/settings.py
+++ b/pelican/settings.py
@@ -122,6 +122,7 @@ DEFAULT_CONFIG = {
     'PYGMENTS_RST_OPTIONS': {},
     'TEMPLATE_PAGES': {},
     'IGNORE_FILES': ['.#*'],
+    'IGNORE_SUBDIRS': [],
     'SLUG_SUBSTITUTIONS': (),
     'INTRASITE_LINK_REGEX': '[{|](?P<what>.*?)[|}]',
     'SLUGIFY_SOURCE': 'title',

[leotrs]

LGTM

[justinmayer]

@leotrs: Nothing to merge here, because it's not a pull request. 😉

If this were to be submitted as a pull request, replete with docs and tests, then we could certainly consider merging it.

[Scheirle]

Somewhat related to #1975