[LEDE-DEV] [PATCH v2] scripts: metadata: always resolve dependencies through provides list

Matthias Schiffer mschiffer at universe-factory.net
Sat Jul 8 13:07:27 PDT 2017


On 07/08/2017 09:18 PM, Matthias Schiffer wrote:
> Instead of adding virtual packages to the normal package list, keep a
> separate list for provides, make each package provide itself, and resolve
> all dependencies through this list. This allows to use PROVIDES to replace
> existing packages.
> 
> A side effect of the changes in the makefile dependency logic is that
> build dependencies are now always interpreted as source package names,
> instead of putting build and runtime dependencies into the same list.
> 
> Fixes FS#837.
> 
> Signed-off-by: Matthias Schiffer <mschiffer at universe-factory.net>
> ---
> 
> v2: Fixed an issue that caused syntax errors in .config-package.in for
> dependencies on on-existing packages (the new version will generate an
I meant to write *non-existing*.

> unsatisfiable dependency, which is probably the best way we can handle
> this)
> 
> 
>  scripts/feeds               |   3 --
>  scripts/metadata.pm         |  17 +++----
>  scripts/package-metadata.pl | 121 +++++++++++++++++++++-----------------------
>  3 files changed, 67 insertions(+), 74 deletions(-)
> 
> diff --git a/scripts/feeds b/scripts/feeds
> index 55c294ad0a..a38eb45458 100755
> --- a/scripts/feeds
> +++ b/scripts/feeds
> @@ -252,7 +252,6 @@ sub search_feed {
>  		my $substr;
>  		my $pkgmatch = 1;
>  
> -		next if $pkg->{vdepends};
>  		foreach my $substr (@substr) {
>  			my $match;
>  			foreach my $key (qw(name title description src)) {
> @@ -306,7 +305,6 @@ sub list_feed {
>  	get_feed($feed);
>  	foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_package) {
>  		my $pkg = $feed_package->{$name};
> -		next if $pkg->{vdepends};
>  		if($pkg->{name}) {
>  			printf "\%-32s\t\%s\n", $pkg->{name}, $pkg->{title};
>  		}
> @@ -588,7 +586,6 @@ sub install {
>  				get_feed($f->[1]);
>  				foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_package) {
>  					my $p = $feed_package->{$name};
> -					next if $p->{vdepends};
>  					if( $p->{name} ) {
>  						install_package($feed, $p->{name}, exists($opts{f})) == 0 or $ret = 1;
>  						get_feed($f->[1]);
> diff --git a/scripts/metadata.pm b/scripts/metadata.pm
> index d446892e2b..8f5af40f14 100644
> --- a/scripts/metadata.pm
> +++ b/scripts/metadata.pm
> @@ -2,9 +2,10 @@ package metadata;
>  use base 'Exporter';
>  use strict;
>  use warnings;
> -our @EXPORT = qw(%package %srcpackage %category %subdir %preconfig %features %overrides clear_packages parse_package_metadata parse_target_metadata get_multiline @ignore %usernames %groupnames);
> +our @EXPORT = qw(%package %vpackage %srcpackage %category %subdir %preconfig %features %overrides clear_packages parse_package_metadata parse_target_metadata get_multiline @ignore %usernames %groupnames);
>  
>  our %package;
> +our %vpackage;
>  our %preconfig;
>  our %srcpackage;
>  our %category;
> @@ -181,6 +182,7 @@ sub clear_packages() {
>  	%subdir = ();
>  	%preconfig = ();
>  	%package = ();
> +	%vpackage = ();
>  	%srcpackage = ();
>  	%category = ();
>  	%features = ();
> @@ -238,6 +240,9 @@ sub parse_package_metadata($) {
>  			$pkg->{override} = $override;
>  			$package{$1} = $pkg;
>  			push @{$srcpackage{$src}}, $pkg;
> +
> +			$vpackage{$1} or $vpackage{$1} = [];
> +			unshift @{$vpackage{$1}}, $1;
>  		};
>  		/^Feature:\s*(.+?)\s*$/ and do {
>  			undef $pkg;
> @@ -269,14 +274,8 @@ sub parse_package_metadata($) {
>  		/^Provides: \s*(.+)\s*$/ and do {
>  			my @vpkg = split /\s+/, $1;
>  			foreach my $vpkg (@vpkg) {
> -				$package{$vpkg} or $package{$vpkg} = {
> -					name => $vpkg,
> -					vdepends => [],
> -					src => $src,
> -					subdir => $subdir,
> -					makefile => $makefile
> -				};
> -				push @{$package{$vpkg}->{vdepends}}, $pkg->{name};
> +				$vpackage{$vpkg} or $vpackage{$vpkg} = [];
> +				push @{$vpackage{$vpkg}}, $pkg->{name};
>  			}
>  		};
>  		/^Menu-Depends: \s*(.+)\s*$/ and $pkg->{mdepends} = [ split /\s+/, $1 ];
> diff --git a/scripts/package-metadata.pl b/scripts/package-metadata.pl
> index d4100c1726..902f7807bd 100755
> --- a/scripts/package-metadata.pl
> +++ b/scripts/package-metadata.pl
> @@ -101,14 +101,16 @@ my %dep_check;
>  sub __find_package_dep($$) {
>  	my $pkg = shift;
>  	my $name = shift;
> -	my $deps = ($pkg->{vdepends} or $pkg->{depends});
> +	my $deps = $pkg->{depends};
>  
>  	return 0 unless defined $deps;
> -	foreach my $dep (@{$deps}) {
> -		next if $dep_check{$dep};
> -		$dep_check{$dep} = 1;
> -		return 1 if $dep eq $name;
> -		return 1 if ($package{$dep} and (__find_package_dep($package{$dep},$name) == 1));
> +	foreach my $vpkg (@{$deps}) {
> +		foreach my $dep (@{$vpackage{$vpkg}}) {
> +			next if $dep_check{$dep};
> +			$dep_check{$dep} = 1;
> +			return 1 if $dep eq $name;
> +			return 1 if ($package{$dep} and (__find_package_dep($package{$dep},$name) == 1));
> +		}
>  	}
>  	return 0;
>  }
> @@ -156,7 +158,6 @@ sub mconf_depends {
>  		my $m = "depends on";
>  		my $flags = "";
>  		$depend =~ s/^([@\+]+)// and $flags = $1;
> -		my $vdep;
>  		my $condition = $parent_condition;
>  
>  		next if $condition eq $depend;
> @@ -173,9 +174,9 @@ sub mconf_depends {
>  			}
>  			$depend = $2;
>  		}
> -		next if $package{$depend} and $package{$depend}->{buildonly};
>  		if ($flags =~ /\+/) {
> -			if ($vdep = $package{$depend}->{vdepends}) {
> +			my $vdep = $vpackage{$depend};
> +			if ($vdep and @$vdep > 0) {
>  				my @vdeps;
>  				$depend = undef;
>  
> @@ -209,7 +210,8 @@ sub mconf_depends {
>  
>  			$flags =~ /@/ or $depend = "PACKAGE_$depend";
>  		} else {
> -			if ($vdep = $package{$depend}->{vdepends}) {
> +			my $vdep = $vpackage{$depend};
> +			if ($vdep and @$vdep > 0) {
>  				$depend = join("||", map { "PACKAGE_".$_ } @$vdep);
>  			} else {
>  				$flags =~ /@/ or $depend = "PACKAGE_$depend";
> @@ -413,7 +415,6 @@ sub get_conditional_dep($$) {
>  
>  sub gen_package_mk() {
>  	my %conf;
> -	my %dep;
>  	my %done;
>  	my $line;
>  
> @@ -423,8 +424,6 @@ sub gen_package_mk() {
>  		my $pkg = $package{$name};
>  		my @srcdeps;
>  
> -		next if defined $pkg->{vdepends};
> -
>  		$config = "\$(CONFIG_PACKAGE_$name)";
>  		if ($config) {
>  			$pkg->{buildonly} and $config = "";
> @@ -445,16 +444,7 @@ sub gen_package_mk() {
>  			print "buildtypes-$pkg->{subdir}$pkg->{src} = ".join(' ', @{$pkg->{buildtypes}})."\n";
>  		}
>  
> -		foreach my $spkg (@{$srcpackage{$pkg->{src}}}) {
> -			foreach my $dep (@{$spkg->{depends}}, @{$spkg->{builddepends}}) {
> -				$dep =~ /@/ or do {
> -					$dep =~ s/\+//g;
> -					push @srcdeps, $dep;
> -				};
> -			}
> -		}
>  		foreach my $type (@{$pkg->{buildtypes}}) {
> -			my @extra_deps;
>  			my %deplines;
>  
>  			next unless $pkg->{"builddepends/$type"};
> @@ -492,63 +482,70 @@ sub gen_package_mk() {
>  			}
>  		}
>  
> -		my $hasdeps = 0;
>  		my %deplines;
> -		foreach my $deps (@srcdeps) {
> -			my $idx;
> -			my $condition;
> -			my $prefix = "";
> -			my $suffix = "";
> -
> -			if ($deps =~ /^(.+):(.+)/) {
> -				$condition = $1;
> -				$deps = $2;
> -			}
> -			if ($deps =~ /^(.+)(\/.+)/) {
> -				$deps = $1;
> -				$suffix = $2;
> -			}
> +		foreach my $spkg (@{$srcpackage{$pkg->{src}}}) {
> +			foreach my $bdep (@{$spkg->{builddepends}}) {
> +				my $condition;
> +				my $suffix = "";
>  
> -			my $pkg_dep = $package{$deps};
> -			my @deps;
> +				if ($bdep =~ /^(.+):(.+)/) {
> +					$condition = $1;
> +					$bdep = $2;
> +				}
> +				if ($bdep =~ /^(.+)(\/.+)/) {
> +					$bdep = $1;
> +					$suffix = $2;
> +				}
>  
> -			if ($pkg_dep->{vdepends}) {
> -				@deps = @{$pkg_dep->{vdepends}};
> -			} else {
> -				@deps = ($deps);
> +				next unless $subdir{$bdep};
> +				my $idx = $subdir{$bdep}.$bdep.$suffix;
> +
> +				my $depline = get_conditional_dep($condition, "\$(curdir)/$idx/compile");
> +				if ($depline) {
> +					$deplines{$depline}++;
> +				}
>  			}
>  
> -			foreach my $dep (@deps) {
> -				$pkg_dep = $package{$deps};
> -				if (defined $pkg_dep->{src}) {
> -					($pkg->{src} ne $pkg_dep->{src}.$suffix) and $idx = $pkg_dep->{subdir}.$pkg_dep->{src};
> -				} elsif (defined($srcpackage{$dep})) {
> -					$idx = $subdir{$dep}.$dep;
> +			foreach my $dep (@{$spkg->{depends}}) {
> +				my $condition;
> +				my $suffix = "";
> +
> +				next if $dep =~ /@/;
> +				$dep =~ s/\+//g;
> +
> +				if ($dep =~ /^(.+):(.+)/) {
> +					$condition = $1;
> +					$dep = $2;
>  				}
> -				undef $idx if $idx eq 'base-files';
> -				if ($idx) {
> -					$idx .= $suffix;
> +				if ($dep =~ /^(.+)(\/.+)/) {
> +					$dep = $1;
> +					$suffix = $2;
> +				}
> +
> +				next unless $vpackage{$dep};
> +
> +				my @vdeps = @{$vpackage{$dep}};
> +				foreach my $vdep (@vdeps) {
> +					my $pkg_dep = $package{$vdep};
>  
> -					my $depline;
> +					next unless $pkg_dep;
>  					next if $pkg->{src} eq $pkg_dep->{src}.$suffix;
> -					next if $dep{$condition.":".$pkg->{src}."->".$idx};
> -					next if $dep{$pkg->{src}."->($dep)".$idx} and $pkg_dep->{vdepends};
> -					my $depstr;
>  
> -					if ($pkg_dep->{vdepends}) {
> -						$depstr = "\$(if \$(CONFIG_PACKAGE_$dep),\$(curdir)/$idx/compile)";
> -						$dep{$pkg->{src}."->($dep)".$idx} = 1;
> +					my $idx = $pkg_dep->{subdir}.$pkg_dep->{src}.$suffix;
> +					my $depstr;
> +					if (@vdeps > 1) {
> +						$depstr = "\$(if \$(CONFIG_PACKAGE_$vdep),\$(curdir)/$idx/compile)";
>  					} else {
>  						$depstr = "\$(curdir)/$idx/compile";
> -						$dep{$pkg->{src}."->".$idx} = 1;
>  					}
> -					$depline = get_conditional_dep($condition, $depstr);
> +					my $depline = get_conditional_dep($condition, $depstr);
>  					if ($depline) {
>  						$deplines{$depline}++;
>  					}
>  				}
>  			}
>  		}
> +
>  		my $depline = join(" ", sort keys %deplines);
>  		if ($depline) {
>  			$line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/compile += $depline\n";
> @@ -573,7 +570,7 @@ ifndef DUMP_TARGET_DB
>  	( \\
>  $cmds \\
>  	) > \$@
> -	
> +
>  ifneq (\$(IMAGEOPT)\$(CONFIG_IMAGEOPT),)
>    package/preconfig: \$(TARGET_DIR)/etc/uci-defaults/$preconfig
>  endif
> 


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