diff options
Diffstat (limited to 'external/poky/meta/lib/oe/path.py')
| -rw-r--r-- | external/poky/meta/lib/oe/path.py | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/external/poky/meta/lib/oe/path.py b/external/poky/meta/lib/oe/path.py index 1e24d058..08297245 100644 --- a/external/poky/meta/lib/oe/path.py +++ b/external/poky/meta/lib/oe/path.py @@ -1,3 +1,7 @@ +# +# SPDX-License-Identifier: GPL-2.0-only +# + import errno import glob import shutil @@ -90,12 +94,27 @@ 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 - if (os.stat(src).st_dev == os.stat(dst).st_dev): + canhard = False + testfile = None + for root, dirs, files in os.walk(src): + if len(files): + testfile = os.path.join(root, files[0]) + break + + if testfile is not None: + try: + os.link(testfile, os.path.join(dst, 'testfile')) + os.unlink(os.path.join(dst, 'testfile')) + canhard = True + except Exception as e: + bb.debug(2, "Hardlink test failed with " + str(e)) + + if (canhard): # Need to copy directories only with tar first since cp will error if two # writers try and create a directory at the same time cmd = "cd %s; find . -type d -print | tar --xattrs --xattrs-include='*' -cf - -S -C %s -p --no-recursion --files-from - | tar --xattrs --xattrs-include='*' -xhf - -C %s" % (src, src, dst) @@ -114,6 +133,14 @@ def copyhardlinktree(src, dst): else: copytree(src, dst) +def copyhardlink(src, dst): + """Make a hard link when possible, otherwise copy.""" + + try: + os.link(src, dst) + except OSError: + shutil.copy(src, dst) + def remove(path, recurse=True): """ Equivalent to rm -f or rm -rf |