[oe-commits] [openembedded-core] 01/19: oe.path: add which_wild function
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git at git.openembedded.org
Mon Jul 2 21:20:53 UTC 2018
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rpurdie pushed a commit to branch master-next
in repository openembedded-core.
commit ca276fe139129eec383d77768ba91b808c462b04
Author: Christopher Larson <chris_larson at mentor.com>
AuthorDate: Fri Jun 22 02:08:19 2018 +0500
oe.path: add which_wild function
This is a function much like shutil.which or bb.utils.which, retaining
shutil.which-like function semantics, bb.utils.which's support for
returning available candidates for signatures, and most importantly,
supports wildcards, returning only the first occurrance of each found
pathname in the search path.
Signed-off-by: Christopher Larson <chris_larson at mentor.com>
Signed-off-by: Ross Burton <ross.burton at intel.com>
---
meta/lib/oe/path.py | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/meta/lib/oe/path.py b/meta/lib/oe/path.py
index 76c58fa..be02218 100644
--- a/meta/lib/oe/path.py
+++ b/meta/lib/oe/path.py
@@ -259,3 +259,37 @@ def is_path_parent(possible_parent, *paths):
if not path_abs.startswith(possible_parent_abs):
return False
return True
+
+def which_wild(pathname, path=None, mode=os.F_OK, *, reverse=False, candidates=False):
+ """Search a search path for pathname, supporting wildcards.
+
+ Return all paths in the specific search path matching the wildcard pattern
+ in pathname, returning only the first encountered for each file. If
+ candidates is True, information on all potential candidate paths are
+ included.
+ """
+ paths = (path or os.environ.get('PATH', os.defpath)).split(':')
+ if reverse:
+ paths.reverse()
+
+ seen, files = set(), []
+ for index, element in enumerate(paths):
+ if not os.path.isabs(element):
+ element = os.path.abspath(element)
+
+ candidate = os.path.join(element, pathname)
+ globbed = glob.glob(candidate)
+ if globbed:
+ for found_path in sorted(globbed):
+ if not os.access(found_path, mode):
+ continue
+ rel = os.path.relpath(found_path, element)
+ if rel not in seen:
+ seen.add(rel)
+ if candidates:
+ files.append((found_path, [os.path.join(p, rel) for p in paths[:index+1]]))
+ else:
+ files.append(found_path)
+
+ return files
+
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