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authorPaul Barker <paul@betafive.co.uk>2019-05-03 11:54:47 +0000
committerRichard Purdie <richard.purdie@linuxfoundation.org>2019-05-04 10:46:04 +0100
commit5437efa16f9bec914e417c6c939a39c247084f52 (patch)
treee2ad39d2b8437136258fdcad2f6a90d7ee58e41c /meta
parent7ac6ac8eb8fc3c623eba0e245fd9049dc6e2dd86 (diff)
downloadopenembedded-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')
-rw-r--r--meta/lib/oe/path.py13
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