For the general case, appending values to variables is OK and also a
good practice, like this:
|PACKAGE_VAR = value1
|ifeq ...
|PACKAGE_VAR += value2
or this, when the above is not possible:
|PACKAGE_VAR = value1
|ifeq ...
|PACKAGE_VAR := $(PACKAGE_VAR), value2
But this override is an error:
|PACKAGE_VAR = value1
|PACKAGE_VAR = value2
as well this one:
|ifeq ...
|PACKAGE_VAR += value1
|endif
|PACKAGE_VAR = value2
And this override is error-prone:
|PACKAGE_VAR = value1
|ifeq ...
|PACKAGE_VAR = value2
Create a check function to warn about overridden variables.
Some variables are likely to have a default value that gets overridden
in a conditional, so ignore them. The name of such variables end in
_ARCH, _CPU, _SITE, _SOURCE or _VERSION.
After ignoring these variable names, there are a few exceptions to this
rule in the tree. For them use the comment that disables the check.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Simon Dawson <spdawson@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Titouan Christophe <titouan.christophe@railnova.eu>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Currently check-package only knows about ifeq/ifneq.
Add code to handle ifdef/ifndef as well.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This script currently uses "/usr/bin/env python" as shebang but it does
not really support Python3. Instead of limiting the script to Python2,
fix it to support both versions.
So change all imports to absolute imports because Python3 follows PEP328
and dropped implicit relative imports.
In order to avoid errors when decoding files with the default 'utf-8'
codec, use errors="surrogateescape" when opening files, the docs for
open() states: "This is useful for processing files in an unknown
encoding.". This argument is not compatible with Python2 open() so
import 'six' to use it only when running in Python3.
As a consequence the file handler becomes explicit, so use it to close()
the file after it got processed.
This "surrogateescape" is a simple alternative to the complete solution
of opening files with "rb" and changing all functions in the lib*.py
files to use bytes objects instead of strings. The only case we can have
non-ascii/non-utf-8 files being checked by the script are for patch
files when the upstream file to be patched is not ascii or utf-8. There
is currently one case in the tree:
package/urg/0002-urg-gcc6-fix-narrowing-conversion.patch.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Tested-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
And warn to use $() instead.
For examples see [1] and [2].
In the regexp, search for ${VARIABLE} but:
- ignore comments;
- ignore variables to be expanded by the shell "$${}".
[1] http://lists.busybox.net/pipermail/buildroot/2018-July/225211.html
[2] 36305380db
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The toolchain directory can benefit from this script to prevent common
mistakes when submitting patches.
In order to accomplish this:
Do not ignore anymore files from the toolchain/ directory.
Ignore this symbol:
- BR_LIBC: defined by the buildroot toolchain, used by gcc-final.mk.
Ignore toolchain/toolchain-external/pkg-toolchain-external.mk as it
declares a package infra and not a package itself.
Ignore toolchain/helpers.mk as it contains only helper functions.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This directory can benefit from this script to prevent common mistakes
when submitting patches.
In order to accomplish this:
Do not ignore anymore files from the linux/ directory.
Ignore missing LINUX_EXT_ prefix as the variables for linux extensions
do not use it.
Ignore this symbol:
- LINUX_EXTENSIONS: defined by each linux extension, used by
linux/linux.mk.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The filesystem types can benefit from this script to prevent common
mistakes when submitting patches.
In order to accomplish this:
Do not ignore anymore files from the fs/ directory.
Ignore fs/common.mk as it declares a package infra and not a package itself.
Register the ROOTFS_ as a valid prefix for variables.
Ignore these symbols:
- PACKAGES_PERMISSIONS_TABLE: defined either by packages through
pkg-generic or by filesystem types, used by fs/common.mk;
- SUMTOOL: defined by package mtd, used by filesystem jffs2;
- TARGETS_ROOTFS: defined by filesystem types, used in the main
Makefile.
Keep using loose checks that warn about common mistakes while keep the
code simple.
As a consequence the check functions do not differentiate between
packages and filesystems so the symbol PACKAGE_UBI would not generate a
warning for the ubi filesystem neither the symbol ROOTFS_MTD would
generate a warning for the mtd package. But those kind of mistakes are
not common and are obvious in the code review, unlike typos i.e.
ROOTFS_UBl or PACKAGE_MID that would be hard to see in the code review.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
check-package would flag tabs before a backslash ('\t\\'),
two spaces before a backslash (' \\') but would not flag a tab before space
before backslash ('\t \\'), allowing someone to bypass the check.
Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Reviewed-by: Ricardo Martincoski <ricardo.martincoski@datacom.ind.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Ignore these warnings:
F401 'lib.ConsecutiveEmptyLines' imported but unused
And remove comments that are not needed anymore.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Just AUTORECONF = NO is redundant.
Just HOST_AUTORECONF = NO is redundant.
But the combination of AUTORECONF = YES + HOST_AUTORECONF = NO is valid.
So basically for all variables that have inheritance between target and
host, having the host variant of the variable set the variable value
back to its default is correct if the target variable is set.
Instead of increasing complexity of the script to fully detect this
case, ignore the host flag set to its default value as it can be
overriding a non-default value inherited from the equivalent target
flag.
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Reported-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@datacom.ind.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
After some discussion, we found out that "tools" has the four first
letters identical to the "toolchain" subfolder, which makes it a bit
unpractical with tab-completion. So, this commit renames "tools" to
"utils", which is more tab-completion-friendly.
This has been discussed with Arnout and Yann.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
