def as_staging(input_path, always_stage=False):
"""Convert an input path to a staging path.
example input: android/frameworks/base/...
example staging: STAGING_ROOT/android/frameworks/base/...
"""
if always_stage or is_in_staging(input_path):
return os.path.join(build_common.get_staging_root(), input_path)
else:
return input_path
def as_staging(input_path, always_stage=False):
"""Convert an input path to a staging path.
example input: android/frameworks/base/...
example staging: STAGING_ROOT/android/frameworks/base/...
"""
if always_stage or is_in_staging(input_path):
return os.path.join(build_common.get_staging_root(), input_path)
else:
return input_path
def get_composite_paths(staging_path):
if not staging_path.startswith(build_common.get_staging_root()):
return None, None
rel_path = os.path.relpath(staging_path, build_common.get_staging_root())
return (os.path.join('third_party',
rel_path), os.path.join('mods', rel_path))
def create_staging():
timer = build_common.SimpleTimer()
timer.start('Staging source files', True)
staging_root = build_common.get_staging_root()
# Store where all the old staging links pointed so we can compare after.
old_staging_links = _get_link_targets(staging_root)
if os.path.lexists(staging_root):
file_util.rmtree(staging_root)
_create_symlink_tree(_MODS_DIR, _THIRD_PARTY_DIR, staging_root)
# internal/ is an optional checkout
if build_options.OPTIONS.internal_apks_source_is_internal():
assert build_common.has_internal_checkout()
for name in os.listdir(_INTERNAL_THIRD_PARTY_PATH):
if os.path.exists(os.path.join(_THIRD_PARTY_DIR, name)):
raise Exception(
'Name conflict between internal/third_party and '
'third_party: ' + name)
_create_symlink_tree(_INTERNAL_MODS_PATH, _INTERNAL_THIRD_PARTY_PATH,
staging_root)
subprocess.check_call('internal/build/fix_staging.py')
# src/ is not overlaid on any directory.
_create_symlink_tree(_SRC_DIR, None, os.path.join(staging_root, 'src'))
# Update modification time for files that do not point to the same location
# that they pointed to in the previous tree to make sure they are built.
if old_staging_links:
new_staging_links = _get_link_targets(staging_root)
# Every file (not directory) under staging is in either one of following
# two states:
#
# F. The file itself is a symbolic link to a file under third_party or
# mods.
# D. Some ancestor directory is a symbolic link to a directory under
# third_party. (It is important that we do not create symbolic links to
# directories under mods)
#
# Let us say a file falls under "X-Y" case if it was in state X before
# re-staging and now in state Y. For all 4 possible cases, we can check if
# the actual destination of the file changed or not in the following way:
#
# F-F: We can just compare the target of the link.
# F-D, D-F: The target may have changed, but it needs some complicated
# computation to check. We treat them as changed to be conservative.
# D-D: We can leave it as-is since both point third_party.
#
# So we want to visit all files in state F either in old staging or new
# staging. For this purpose we can iterate through |*_staging_links| as
# they contain all files in state F.
#
# Note that |*_staging_links| may contain directory symbolic links, but
# it is okay to visit them too because directory timestamps do not matter.
# Actually excluding directory symbolic links from |old_staging_links| is
# difficult because link targets might be already removed.
for path in set(list(old_staging_links) + list(new_staging_links)):
if path in old_staging_links and path in new_staging_links:
should_touch = old_staging_links[path] != new_staging_links[
path]
else:
should_touch = True
if should_touch and os.path.exists(path):
os.utime(path, None)
timer.done()
return True
def get_composite_paths(staging_path):
if not staging_path.startswith(build_common.get_staging_root()):
return None, None
rel_path = os.path.relpath(staging_path, build_common.get_staging_root())
return (os.path.join('third_party', rel_path),
os.path.join('mods', rel_path))
def create_staging():
timer = build_common.SimpleTimer()
timer.start('Staging source files', True)
staging_root = build_common.get_staging_root()
# Store where all the old staging links pointed so we can compare after.
old_staging_links = _get_link_targets(staging_root)
if os.path.lexists(staging_root):
file_util.rmtree(staging_root)
_create_symlink_tree(_MODS_DIR, _THIRD_PARTY_DIR, staging_root)
# internal/ is an optional checkout
if build_options.OPTIONS.internal_apks_source_is_internal():
assert build_common.has_internal_checkout()
for name in os.listdir(_INTERNAL_THIRD_PARTY_PATH):
if os.path.exists(os.path.join(_THIRD_PARTY_DIR, name)):
raise Exception('Name conflict between internal/third_party and '
'third_party: ' + name)
_create_symlink_tree(_INTERNAL_MODS_PATH, _INTERNAL_THIRD_PARTY_PATH,
staging_root)
subprocess.check_call('internal/build/fix_staging.py')
# src/ is not overlaid on any directory.
_create_symlink_tree(_SRC_DIR, None, os.path.join(staging_root, 'src'))
# Update modification time for files that do not point to the same location
# that they pointed to in the previous tree to make sure they are built.
if old_staging_links:
new_staging_links = _get_link_targets(staging_root)
# Every file (not directory) under staging is in either one of following
# two states:
#
# F. The file itself is a symbolic link to a file under third_party or
# mods.
# D. Some ancestor directory is a symbolic link to a directory under
# third_party. (It is important that we do not create symbolic links to
# directories under mods)
#
# Let us say a file falls under "X-Y" case if it was in state X before
# re-staging and now in state Y. For all 4 possible cases, we can check if
# the actual destination of the file changed or not in the following way:
#
# F-F: We can just compare the target of the link.
# F-D, D-F: The target may have changed, but it needs some complicated
# computation to check. We treat them as changed to be conservative.
# D-D: We can leave it as-is since both point third_party.
#
# So we want to visit all files in state F either in old staging or new
# staging. For this purpose we can iterate through |*_staging_links| as
# they contain all files in state F.
#
# Note that |*_staging_links| may contain directory symbolic links, but
# it is okay to visit them too because directory timestamps do not matter.
# Actually excluding directory symbolic links from |old_staging_links| is
# difficult because link targets might be already removed.
for path in set(list(old_staging_links) + list(new_staging_links)):
if path in old_staging_links and path in new_staging_links:
should_touch = old_staging_links[path] != new_staging_links[path]
else:
should_touch = True
if should_touch and os.path.exists(path):
os.utime(path, None)
timer.done()
return True
