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buildrootschalter/package/python/python.mk
Thomas De Schampheleire f268f7131b .mk files: bulk aligment and whitespace cleanup of assignments 
The Buildroot coding style defines one space around make assignments and
does not align the assignment symbols.

This patch does a bulk fix of offending packages. The package
infrastructures (or more in general assignments to calculated variable
names, like $(2)_FOO) are not touched.

Alignment of line continuation characters (\) is kept as-is.

The sed command used to do this replacement is:
find * -name "*.mk" | xargs sed -i \
    -e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\s*$#\1 \2#'
    -e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\s*\([^\\]\+\)$#\1 \2 \3#'
    -e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\s*\([^\\ \t]\+\s*\\\)\s*$#\1 \2 \3#'
    -e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\(\s*\\\)#\1 \2\3#'

Brief explanation of this command:
    ^\([A-Z0-9a-z_]\+\)     a regular variable at the beginning of the line
    \([?:+]\?=\)            any assignment character =, :=, ?=, +=
    \([^\\]\+\)             any string not containing a line continuation
    \([^\\ \t]\+\s*\\\)     string, optional whitespace, followed by a
                            line continuation character
    \(\s*\\\)               optional whitespace, followed by a line
                            continuation character

Hence, the first subexpression handles empty assignments, the second
handles regular assignments, the third handles regular assignments with
line continuation, and the fourth empty assignments with line
continuation.

This expression was tested on following test text: (initial tab not
included)

	FOO     = spaces before
	FOO     =   spaces before and after
	FOO	= tab before
	FOO	  = tab and spaces before
	FOO =	tab after
	FOO =	   tab and spaces after
	FOO =   	spaces and tab after
	FOO =    \
	FOO = bar \
	FOO = bar space    \
	FOO   =		   \
	GENIMAGE_DEPENDENCIES   = host-pkgconf libconfuse
	FOO     += spaces before
	FOO     ?=   spaces before and after
	FOO     :=
	FOO     =
	FOO	=
	FOO	  =
	FOO =
	   $(MAKE1) CROSS_COMPILE=$(TARGET_CROSS) -C
	AT91BOOTSTRAP3_DEFCONFIG = \
	AXEL_DISABLE_I18N=--i18n=0

After this bulk change, following manual fixups were done:
- fix line continuation alignment in cegui06 and spice (the sed
  expression leaves the number of whitespace between the value and line
  continuation character intact, but the whitespace before that could have
  changed, causing misalignment.
- qt5base was reverted, as this package uses extensive alignment which
  actually makes the code more readable.

Finally, the end result was manually reviewed.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Cc: Yann E. Morin <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2014-10-07 15:00:28 +02:00

225 lines
6.2 KiB
Makefile
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################################################################################
#
# python
#
################################################################################
PYTHON_VERSION_MAJOR = 2.7
PYTHON_VERSION = $(PYTHON_VERSION_MAJOR).8
PYTHON_SOURCE = Python-$(PYTHON_VERSION).tar.xz
PYTHON_SITE = http://python.org/ftp/python/$(PYTHON_VERSION)
PYTHON_LICENSE = Python software foundation license v2, others
PYTHON_LICENSE_FILES = LICENSE
# Python needs itself to be built, so in order to cross-compile
# Python, we need to build a host Python first. This host Python is
# also installed in $(HOST_DIR), as it is needed when cross-compiling
# third-party Python modules.
HOST_PYTHON_CONF_OPTS += \
--enable-static \
--without-cxx-main \
--disable-sqlite3 \
--disable-tk \
--with-expat=system \
--disable-curses \
--disable-codecs-cjk \
--disable-nis \
--enable-unicodedata \
--disable-dbm \
--disable-gdbm \
--disable-bsddb \
--disable-test-modules \
--disable-bz2 \
--disable-ssl \
--disable-pyo-build
# Make sure that LD_LIBRARY_PATH overrides -rpath.
# This is needed because libpython may be installed at the same time that
# python is called.
HOST_PYTHON_CONF_ENV += \
LDFLAGS="$(HOST_LDFLAGS) -Wl,--enable-new-dtags"
# Building host python in parallel sometimes triggers a "Bus error"
# during the execution of "./python setup.py build" in the
# installation step. It is probably due to the installation of a
# shared library taking place in parallel to the execution of
# ./python, causing spurious Bus error. Building host-python with
# MAKE1 has shown to workaround the problem.
HOST_PYTHON_MAKE = $(MAKE1)
PYTHON_DEPENDENCIES = host-python libffi
HOST_PYTHON_DEPENDENCIES = host-expat host-zlib
PYTHON_INSTALL_STAGING = YES
ifeq ($(BR2_PACKAGE_PYTHON_READLINE),y)
PYTHON_DEPENDENCIES += readline
endif
ifeq ($(BR2_PACKAGE_PYTHON_CURSES),y)
PYTHON_DEPENDENCIES += ncurses
else
PYTHON_CONF_OPTS += --disable-curses
endif
ifeq ($(BR2_PACKAGE_PYTHON_PYEXPAT),y)
PYTHON_DEPENDENCIES += expat
PYTHON_CONF_OPTS += --with-expat=system
else
PYTHON_CONF_OPTS += --with-expat=none
endif
ifeq ($(BR2_PACKAGE_PYTHON_BSDDB),y)
PYTHON_DEPENDENCIES += berkeleydb
else
PYTHON_CONF_OPTS += --disable-bsddb
endif
ifeq ($(BR2_PACKAGE_PYTHON_SQLITE),y)
PYTHON_DEPENDENCIES += sqlite
else
PYTHON_CONF_OPTS += --disable-sqlite3
endif
ifeq ($(BR2_PACKAGE_PYTHON_SSL),y)
PYTHON_DEPENDENCIES += openssl
else
PYTHON_CONF_OPTS += --disable-ssl
endif
ifneq ($(BR2_PACKAGE_PYTHON_CODECSCJK),y)
PYTHON_CONF_OPTS += --disable-codecs-cjk
endif
ifneq ($(BR2_PACKAGE_PYTHON_UNICODEDATA),y)
PYTHON_CONF_OPTS += --disable-unicodedata
endif
# Default is UCS2 w/o a conf opt
ifeq ($(BR2_PACKAGE_PYTHON_UCS4),y)
PYTHON_CONF_OPTS += --enable-unicode=ucs4
endif
ifeq ($(BR2_PACKAGE_PYTHON_BZIP2),y)
PYTHON_DEPENDENCIES += bzip2
else
PYTHON_CONF_OPTS += --disable-bz2
endif
ifeq ($(BR2_PACKAGE_PYTHON_ZLIB),y)
PYTHON_DEPENDENCIES += zlib
else
PYTHON_CONF_OPTS += --disable-zlib
endif
ifeq ($(BR2_PACKAGE_PYTHON_HASHLIB),y)
PYTHON_DEPENDENCIES += openssl
endif
PYTHON_CONF_ENV += \
ac_cv_have_long_long_format=yes \
ac_cv_file__dev_ptmx=yes \
ac_cv_file__dev_ptc=yes \
ac_cv_working_tzset=yes
PYTHON_CONF_OPTS += \
--without-cxx-main \
--without-doc-strings \
--with-system-ffi \
--disable-pydoc \
--disable-test-modules \
--disable-lib2to3 \
--disable-gdbm \
--disable-tk \
--disable-nis \
--disable-dbm \
--disable-pyo-build
# This is needed to make sure the Python build process doesn't try to
# regenerate those files with the pgen program. Otherwise, it builds
# pgen for the target, and tries to run it on the host.
define PYTHON_TOUCH_GRAMMAR_FILES
touch $(@D)/Include/graminit.h $(@D)/Python/graminit.c
endef
PYTHON_POST_PATCH_HOOKS += PYTHON_TOUCH_GRAMMAR_FILES
#
# Remove useless files. In the config/ directory, only the Makefile
# and the pyconfig.h files are needed at runtime.
#
# idle & smtpd.py have bad shebangs and are mostly samples
#
define PYTHON_REMOVE_USELESS_FILES
rm -f $(TARGET_DIR)/usr/bin/python$(PYTHON_VERSION_MAJOR)-config
rm -f $(TARGET_DIR)/usr/bin/python2-config
rm -f $(TARGET_DIR)/usr/bin/python-config
rm -f $(TARGET_DIR)/usr/bin/smtpd.py
for i in `find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/config/ \
-type f -not -name pyconfig.h -a -not -name Makefile` ; do \
rm -f $$i ; \
done
endef
PYTHON_POST_INSTALL_TARGET_HOOKS += PYTHON_REMOVE_USELESS_FILES
#
# Make sure libpython gets stripped out on target
#
define PYTHON_ENSURE_LIBPYTHON_STRIPPED
chmod u+w $(TARGET_DIR)/usr/lib/libpython$(PYTHON_VERSION_MAJOR)*.so
endef
PYTHON_POST_INSTALL_TARGET_HOOKS += PYTHON_ENSURE_LIBPYTHON_STRIPPED
# Always install the python symlink in the target tree
define PYTHON_INSTALL_TARGET_PYTHON_SYMLINK
ln -sf python2 $(TARGET_DIR)/usr/bin/python
endef
PYTHON_POST_INSTALL_TARGET_HOOKS += PYTHON_INSTALL_TARGET_PYTHON_SYMLINK
# Always install the python-config symlink in the staging tree
define PYTHON_INSTALL_STAGING_PYTHON_CONFIG_SYMLINK
ln -sf python2-config $(STAGING_DIR)/usr/bin/python-config
endef
PYTHON_POST_INSTALL_STAGING_HOOKS += PYTHON_INSTALL_STAGING_PYTHON_CONFIG_SYMLINK
PYTHON_AUTORECONF = YES
# Some packages may have build scripts requiring python2.
# Only install the python symlink in the host tree if python3 is not enabled
# for the target, otherwise the default python program may be missing.
ifneq ($(BR2_PACKAGE_PYTHON3),y)
define HOST_PYTHON_INSTALL_PYTHON_SYMLINK
ln -sf python2 $(HOST_DIR)/usr/bin/python
ln -sf python2-config $(HOST_DIR)/usr/bin/python-config
endef
HOST_PYTHON_POST_INSTALL_HOOKS += HOST_PYTHON_INSTALL_PYTHON_SYMLINK
endif
# Provided to other packages
PYTHON_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/sysconfigdata/:$(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/site-packages/
$(eval $(autotools-package))
$(eval $(host-autotools-package))
ifeq ($(BR2_PACKAGE_PYTHON_PYC_ONLY),y)
define PYTHON_FINALIZE_TARGET
find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) -name '*.py' -print0 | xargs -0 rm -f
endef
endif
ifeq ($(BR2_PACKAGE_PYTHON_PY_ONLY),y)
define PYTHON_FINALIZE_TARGET
find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) -name '*.pyc' -print0 | xargs -0 rm -f
endef
endif
TARGET_FINALIZE_HOOKS += PYTHON_FINALIZE_TARGET
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