From: Peter Kjellerstedt <peter.kjellerst...@axis.com>
oe.path.canonicalize() is used to canonicalize paths (i.e., remove
symbolic links and "..", and make them absolute). It takes a string
with paths separated by commas, and returns the canonicalized path in
the same format.
Signed-off-by: Peter Kjellerstedt <peter.kjellerst...@axis.com>
Signed-off-by: Richard Purdie <richard.pur...@linuxfoundation.org>
(cherry picked from commit 282b19c0e27488ec119f00fb2542ffdc1af54e2a)
Signed-off-by: Steve Sakoman <st...@sakoman.com>
---
meta/lib/oe/path.py | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/meta/lib/oe/path.py b/meta/lib/oe/path.py
index 082972457b..c8d8ad05b9 100644
--- a/meta/lib/oe/path.py
+++ b/meta/lib/oe/path.py
@@ -320,3 +320,24 @@ def which_wild(pathname, path=None, mode=os.F_OK, *,
reverse=False, candidates=F
return files
+def canonicalize(paths, sep=','):
+ """Given a string with paths (separated by commas by default), expand
+ each path using os.path.realpath() and return the resulting paths as a
+ string (separated using the same separator a the original string).
+ """
+ # Ignore paths containing "$" as they are assumed to be unexpanded bitbake
+ # variables. Normally they would be ignored, e.g., when passing the paths
+ # through the shell they would expand to empty strings. However, when they
+ # are passed through os.path.realpath(), it will cause them to be prefixed
+ # with the absolute path to the current directory and thus not be empty
+ # anymore.
+ #
+ # Also maintain trailing slashes, as the paths may actually be used as
+ # prefixes in sting compares later on, where the slashes then are
important.
+ canonical_paths = []
+ for path in (paths or '').split(sep):
+ if '$' not in path:
+ trailing_slash = path.endswith('/') and '/' or ''
+ canonical_paths.append(os.path.realpath(path) + trailing_slash)
+
+ return sep.join(canonical_paths)
--
2.25.1
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