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build: allow openwrt.git packages to be replaced by feeds

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Currently, replacing a package available in openwrt.git requires
modifications in openwrt.git, or requires duplicating the package in a
feed but with a different name, which causes all kind of problems
related to dependencies (all packages selecting it would have to be
modified accordingly to select the new package).

With this change, if a package with the same name is present both in
feeds/ and package/ folders, the one in feeds/ can override the one
in package/, both in the menuconfig and during the build, by passing the
"-f" option to "./scripts/feeds install"

This mechanism is particularly useful for vendor tree, or in general for
application which needs to replace one particular package which exists
within openwrt.git by a custom/newer version.

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>

SVN-Revision: 44334
This commit is contained in:
John Crispin 2015-02-09 12:09:23 +00:00
parent 28353b3fc5
commit 2e2c04777b
3 changed files with 40 additions and 9 deletions
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17
include/scan.awk Normal file
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@ -0,0 +1,17 @@
BEGIN { FS="/" }
$1 ~ /^feeds/ { FEEDS[$NF]=$0 }
$1 !~ /^feeds/ { PKGS[$NF]=$0 }
END {
# Filter-out OpenWrt packages which have a feeds equivalent
for (pkg in PKGS)
if (pkg in FEEDS)
delete PKGS[pkg]
n = asort(PKGS)
for (i=1; i <= n; i++) {
print PKGS[i]
}
n = asort(FEEDS)
for (i=1; i <= n; i++){
print FEEDS[i]
}
}

2
include/scan.mk
View File

@ -43,7 +43,7 @@ endef
$(FILELIST):
rm -f $(TMP_DIR)/info/.files-$(SCAN_TARGET)-*
$(call FIND_L, $(SCAN_DIR)) $(SCAN_EXTRA) -mindepth 1 $(if $(SCAN_DEPTH),-maxdepth $(SCAN_DEPTH)) -name Makefile | xargs grep -HE 'call (Build/DefaultTargets|Build(Package|Target)|.+Package)' | sed -e 's#^$(SCAN_DIR)/##' -e 's#/Makefile:.*##' | uniq > $@
$(call FIND_L, $(SCAN_DIR)) $(SCAN_EXTRA) -mindepth 1 $(if $(SCAN_DEPTH),-maxdepth $(SCAN_DEPTH)) -name Makefile | xargs grep -HE 'call (Build/DefaultTargets|Build(Package|Target)|.+Package)' | sed -e 's#^$(SCAN_DIR)/##' -e 's#/Makefile:.*##' | uniq | awk -f include/scan.awk > $@
$(TMP_DIR)/info/.files-$(SCAN_TARGET).mk: $(FILELIST)
( \

30
scripts/feeds
View File

@ -358,6 +358,7 @@ sub is_core_package($) {
sub install_package {
my $feed = shift;
my $name = shift;
my $force = shift;
my $ret = 0;
$feed = lookup_package($feed, $name);
@ -382,14 +383,26 @@ sub install_package {
my $type = $feed->[0];
$src or $src = $name;
# If it's a core package and we don't want to override, just return
!$force and is_core_package($src) and return 0;
# previously installed packages set the runtime package
# newly installed packages set the source package
$installed{$src} and return 0;
# newly installed packages set the source package to 1
$installed{$src} and $installed{$src} == 1 and return 0;
# we'll trigger the override only with the 3 conditions below:
# - override is allowed by command line (-f)
# - a package with the same src exists in the core packages list
# - the package previously installed is not from a feed
my $override = 1 if ($force and is_core_package($src) and !$installed{$name}->{feed});
# check previously installed packages
$installed{$name} and return 0;
$installed{$name} and !$override and return 0;
$installed{$src} = 1;
warn "Installing package '$src'\n";
defined($override) and $override == 1
and warn "Overriding package '$src'\n"
or warn "Installing package '$src'\n";
$install_method{$type} or do {
warn "Unknown installation method: '$type'\n";
@ -409,7 +422,7 @@ sub install_package {
$dep =~ s/^.+://;
$dep =~ s/\/.+$//;
next unless $dep;
install_package($feed, $dep) == 0 or $ret = 1;
install_package($feed, $dep, 0) == 0 or $ret = 1;
}
}
@ -436,7 +449,7 @@ sub install {
my $feed;
my $ret = 0;
getopts('ap:d:h', \%opts);
getopts('ap:d:fh', \%opts);
if ($opts{h}) {
usage();
@ -462,7 +475,7 @@ sub install {
my $p = $feed_package->{$name};
next if $p->{vdepends};
if( $p->{name} ) {
install_package($feed, $p->{name}) == 0 or $ret = 1;
install_package($feed, $p->{name}, exists($opts{f})) == 0 or $ret = 1;
get_feed($f->[1]);
}
}
@ -470,7 +483,7 @@ sub install {
}
} else {
while ($name = shift @ARGV) {
install_package($feed, $name) == 0 or $ret = 1;
install_package($feed, $name, exists($opts{f})) == 0 or $ret = 1;
}
}
@ -638,6 +651,7 @@ Commands:
-a : Install all packages from all feeds or from the specified feed using the -p option.
-p <feedname>: Prefer this feed when installing packages.
-d <y|m|n>: Set default for newly installed packages.
-f : Install will be forced even if the package exists in core OpenWrt (override)
search [options] <substring>: Search for a package
Options: