diff options
Diffstat (limited to 'meta/lib/oe/path.py')
| -rw-r--r-- | meta/lib/oe/path.py | 120 |
1 files changed, 110 insertions, 10 deletions
diff --git a/meta/lib/oe/path.py b/meta/lib/oe/path.py index 06a5af2659..fa209b9795 100644 --- a/meta/lib/oe/path.py +++ b/meta/lib/oe/path.py @@ -1,3 +1,7 @@ +# +# SPDX-License-Identifier: GPL-2.0-only +# + import errno import glob import shutil @@ -50,9 +54,30 @@ def make_relative_symlink(path): os.remove(path) os.symlink(base, path) +def replace_absolute_symlinks(basedir, d): + """ + Walk basedir looking for absolute symlinks and replacing them with relative ones. + The absolute links are assumed to be relative to basedir + (compared to make_relative_symlink above which tries to compute common ancestors + using pattern matching instead) + """ + for walkroot, dirs, files in os.walk(basedir): + for file in files + dirs: + path = os.path.join(walkroot, file) + if not os.path.islink(path): + continue + link = os.readlink(path) + if not os.path.isabs(link): + continue + walkdir = os.path.dirname(path.rpartition(basedir)[2]) + base = os.path.relpath(link, walkdir) + bb.debug(2, "Replacing absolute path %s with relative path %s" % (link, base)) + os.remove(path) + os.symlink(base, path) + def format_display(path, metadata): """ Prepare a path for display to the user. """ - rel = relative(metadata.getVar("TOPDIR", True), path) + rel = relative(metadata.getVar("TOPDIR"), path) if len(rel) > len(path): return path else: @@ -65,11 +90,11 @@ def copytree(src, dst): # This way we also preserve hardlinks between files in the tree. bb.utils.mkdirhier(dst) - cmd = "tar --xattrs --xattrs-include='*' -cf - -C %s -p . | tar --xattrs --xattrs-include='*' -xf - -C %s" % (src, dst) + cmd = "tar --xattrs --xattrs-include='*' -cf - -S -C %s -p . | tar --xattrs --xattrs-include='*' -xf - -C %s" % (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 @@ -77,23 +102,42 @@ def copyhardlinktree(src, dst): if (os.stat(src).st_dev == os.stat(dst).st_dev): # 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 - -C %s -p --no-recursion --files-from - | tar --xattrs --xattrs-include='*' -xf - -C %s" % (src, src, dst) + 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) subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT) source = '' if os.path.isdir(src): - import glob if len(glob.glob('%s/.??*' % src)) > 0: - source = '%s/.??* ' % src - source = source + '%s/*' % src + source = './.??* ' + source += './*' + s_dir = src else: source = src - cmd = 'cp -afl --preserve=xattr %s %s' % (source, dst) - subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT) + s_dir = os.getcwd() + cmd = 'cp -afl --preserve=xattr %s %s' % (source, os.path.realpath(dst)) + subprocess.check_output(cmd, shell=True, cwd=s_dir, stderr=subprocess.STDOUT) 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""" + """ + Equivalent to rm -f or rm -rf + NOTE: be careful about passing paths that may contain filenames with + wildcards in them (as opposed to passing an actual wildcarded path) - + since we use glob.glob() to expand the path. Filenames containing + square brackets are particularly problematic since the they may not + actually expand to match the original filename. + """ for name in glob.glob(path): try: os.unlink(name) @@ -208,3 +252,59 @@ def realpath(file, root, use_physdir = True, loop_cnt = 100, assume_dir = False) raise return file + +def is_path_parent(possible_parent, *paths): + """ + Return True if a path is the parent of another, False otherwise. + Multiple paths to test can be specified in which case all + specified test paths must be under the parent in order to + return True. + """ + def abs_path_trailing(pth): + pth_abs = os.path.abspath(pth) + if not pth_abs.endswith(os.sep): + pth_abs += os.sep + return pth_abs + + possible_parent_abs = abs_path_trailing(possible_parent) + if not paths: + return False + for path in paths: + path_abs = abs_path_trailing(path) + if not path_abs.startswith(possible_parent_abs): + return False + return True + +def which_wild(pathname, path=None, mode=os.F_OK, *, reverse=False, candidates=False): + """Search a search path for pathname, supporting wildcards. + + Return all paths in the specific search path matching the wildcard pattern + in pathname, returning only the first encountered for each file. If + candidates is True, information on all potential candidate paths are + included. + """ + paths = (path or os.environ.get('PATH', os.defpath)).split(':') + if reverse: + paths.reverse() + + seen, files = set(), [] + for index, element in enumerate(paths): + if not os.path.isabs(element): + element = os.path.abspath(element) + + candidate = os.path.join(element, pathname) + globbed = glob.glob(candidate) + if globbed: + for found_path in sorted(globbed): + if not os.access(found_path, mode): + continue + rel = os.path.relpath(found_path, element) + if rel not in seen: + seen.add(rel) + if candidates: + files.append((found_path, [os.path.join(p, rel) for p in paths[:index+1]])) + else: + files.append(found_path) + + return files + |