From ca276fe139129eec383d77768ba91b808c462b04 Mon Sep 17 00:00:00 2001 From: Christopher Larson Date: Fri, 22 Jun 2018 02:08:19 +0500 Subject: 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 Signed-off-by: Ross Burton --- 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 76c58fa760..be02218c31 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 + -- cgit v1.2.3