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wic/rootfs.py: allow --exclude-path option to exclude symlinks

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Currently, if we specify a symbolic link in --exclude-path option,
we will get the following error in do_image_wic:

ERROR: --exclude-path: Must point inside the rootfs: usr/bin/hello.link

This is because it uses os.path.realpath to eliminate symbolic links. To
exclude symbolic links, use os.path.abspath instead of os.path.realpath.

(From OE-Core rev: 42e829ac1e9d74646b6dfb327b18b15f6b0df60b)

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Yi Zhao 2024-10-11 17:19:35 +08:00 committed by Richard Purdie
parent f8d8f08f50
commit 8028c989cc
1 changed files with 1 additions and 1 deletions
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2
scripts/lib/wic/plugins/source/rootfs.py
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@ -41,7 +41,7 @@ class RootfsPlugin(SourcePlugin):
# Disallow climbing outside of parent directory using '..',
# because doing so could be quite disastrous (we will delete the
# directory, or modify a directory outside OpenEmbedded).
full_path = os.path.realpath(os.path.join(rootfs_dir, path))
full_path = os.path.abspath(os.path.join(rootfs_dir, path))
if not full_path.startswith(os.path.realpath(rootfs_dir)):
logger.error("%s: Must point inside the rootfs: %s" % (cmd, path))
sys.exit(1)