buildrootschalter/fs
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
..
cloop Normalize separator size to 80 2013-06-07 10:54:54 +02:00
cpio uboot-tools: factor out common mkimage infrastructure 2013-11-11 00:37:03 +01:00
cramfs package: fix white spaces 2014-01-16 13:31:09 +01:00
ext2 .mk files: bulk aligment and whitespace cleanup of assignments 2014-10-07 15:00:28 +02:00
initramfs linux: remove support of linux26-* targets 2014-07-29 23:47:03 +02:00
iso9660 filesystems: also chown symlinks 2014-06-09 11:28:57 +02:00
jffs2 Remove redundant dollar signs in Config.in files 2013-10-26 19:58:30 +02:00
romfs .mk files: bulk aligment and whitespace cleanup of assignments 2014-10-07 15:00:28 +02:00
squashfs fs/squashfs: add lz4 compression support 2014-05-18 23:48:28 +02:00
tar fs/tar: use qstrip to clean up build output 2014-05-28 21:19:58 +02:00
ubifs fs/ubi: add option to use custom ubinize config file 2014-02-08 22:57:31 +01:00
yaffs2 yaffs2: new filesystem type 2014-04-20 18:07:11 +02:00
Config.in yaffs2: new filesystem type 2014-04-20 18:07:11 +02:00
common.mk infra: consistently use double dollar signs inside inner-xxx-targets 2014-06-14 19:09:54 +02:00