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author | Paul Barker <paul@betafive.co.uk> | 2019-05-03 11:54:47 +0000 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2019-05-04 10:46:04 +0100 |
commit | 5437efa16f9bec914e417c6c939a39c247084f52 (patch) | |
tree | e2ad39d2b8437136258fdcad2f6a90d7ee58e41c /meta/lib/oe | |
parent | 7ac6ac8eb8fc3c623eba0e245fd9049dc6e2dd86 (diff) | |
download | openembedded-core-contrib-5437efa16f9bec914e417c6c939a39c247084f52.tar.gz |
oe.path: Add copyhardlink() helper function
This function creates hard links if possible, falling back to copying
the file if the destination is on a different volume to the source.
The docstring for copyhardlinktree() is also updated to make the
difference between the two functions a little clearer.
Signed-off-by: Paul Barker <paul@betafive.co.uk>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/lib/oe')
-rw-r--r-- | meta/lib/oe/path.py | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/meta/lib/oe/path.py b/meta/lib/oe/path.py index 1e24d0586b..c09eda5c42 100644 --- a/meta/lib/oe/path.py +++ b/meta/lib/oe/path.py @@ -90,7 +90,7 @@ def copytree(src, dst): subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT) def copyhardlinktree(src, dst): - """ Make the hard link when possible, otherwise copy. """ + """Make a tree of hard links when possible, otherwise copy.""" bb.utils.mkdirhier(dst) if os.path.isdir(src) and not len(os.listdir(src)): return @@ -114,6 +114,17 @@ def copyhardlinktree(src, dst): else: copytree(src, dst) +def copyhardlink(src, dst): + """Make a hard link when possible, otherwise copy.""" + + # We need to stat the destination directory as the destination file probably + # doesn't exist yet. + dstdir = os.path.dirname(dst) + if os.stat(src).st_dev == os.stat(dstdir).st_dev: + os.link(src, dst) + else: + shutil.copy(src, dst) + def remove(path, recurse=True): """ Equivalent to rm -f or rm -rf |