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scripts/package-metadata.pl: inhibit compile deps on missing build types 

When a package declares a PKG_BUILD_DEPENDENCY or HOST_BUILD_DEPENDENCY on
a not existing build type, the metadata script will emit a reference to an
unresolvable build target in tmp/.packagedeps, causing the make process to
fail hard in a way not catchable by the IGNORE_ERRORS mechanism.

In a situation where a package "test-a" declares a build dependency
"PKG_BUILD_DEPENDS:=test-b/host" while the Makefile of "test-b" does not
implement a HostBuild, make fails with an unrecoverable error in the form:

    make[1]: Entering directory '...'
    make[1]: *** No rule to make target 'package/test-b/host/compile',
                 needed by 'package/test-a/compile'.  Stop.
    make[1]: Leaving directory '...'
    .../toplevel.mk:200: recipe for target 'package/test-a/compile' failed
    make: *** [package/test-a/compile] Error 2

Extend the metadata generation script to catch such unresolved references
and emit a visable warning upon detection.

After this change, the script will emit a warning similar to:

    WARNING: Makefile "package/test-a/Makefile" has a build dependency on
    "test-b/host" but "package/test-b/Makefile" does not implement a
    "host" build type

Fixes a global build cluster outage which occured after the "python-cffi"
feed package removed its HostBuild which the "python-cryptography" package
build-depended on.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit bf5d32af2a)
This commit is contained in:
Jo-Philipp Wich 2017-07-27 00:18:12 +02:00
parent 2e1a87a3e1
commit b616aa6db7
1 changed files with 25 additions and 6 deletions
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31
scripts/package-metadata.pl
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@ -460,20 +460,27 @@ sub gen_package_mk() {
next unless $pkg->{"builddepends/$type"};
foreach my $dep (@{$pkg->{"builddepends/$type"}}) {
my $suffix = "";
my $deptype = "";
my $condition;
if ($dep =~ /^(.+):(.+)/) {
$condition = $1;
$dep = $2;
}
if ($dep =~ /^(.+)(\/.+)/) {
if ($dep =~ /^(.+)\/(.+)/) {
$dep = $1;
$suffix = $2;
$deptype = $2;
$suffix = "/$2";
}
my $idx = "";
my $pkg_dep = $package{$dep};
if (defined($pkg_dep) && defined($pkg_dep->{src})) {
unless (!$deptype || grep { $_ eq $deptype } @{$pkg_dep->{buildtypes}}) {
warn sprintf "WARNING: Makefile '%s' has a %s build dependency on '%s/%s' but '%s' does not implement a '%s' build type\n",
$pkg->{makefile}, $type, $pkg_dep->{src}, $deptype, $pkg_dep->{makefile}, $deptype;
next;
}
$idx = $pkg_dep->{subdir}.$pkg_dep->{src};
} elsif (defined($srcpackage{$dep})) {
$idx = $subdir{$dep}.$dep;
@ -499,14 +506,16 @@ sub gen_package_mk() {
my $condition;
my $prefix = "";
my $suffix = "";
my $deptype = "";
if ($deps =~ /^(.+):(.+)/) {
$condition = $1;
$deps = $2;
}
if ($deps =~ /^(.+)(\/.+)/) {
if ($deps =~ /^(.+)\/(.+)/) {
$deps = $1;
$suffix = $2;
$deptype = $2;
$suffix = "/$2";
}
my $pkg_dep = $package{$deps};
@ -521,7 +530,17 @@ sub gen_package_mk() {
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};
unless (!$deptype || grep { $_ eq $deptype } @{$pkg_dep->{buildtypes}}) {
warn sprintf "WARNING: Makefile '%s' has a build dependency on '%s/%s' but '%s' does not implement a '%s' build type\n",
$pkg->{makefile}, $pkg_dep->{src}, $deptype, $pkg_dep->{makefile}, $deptype;
next;
}
unless ($pkg->{src} ne $pkg_dep->{sec}.$suffix) {
warn sprintf "WARNING: Makefile '%s' has a build dependency on itself\n",
$pkg->{makefile};
next;
}
$idx = $pkg_dep->{subdir}.$pkg_dep->{src};
} elsif (defined($srcpackage{$dep})) {
$idx = $subdir{$dep}.$dep;
}
@ -573,7 +592,7 @@ ifndef DUMP_TARGET_DB
( \\
$cmds \\
) > \$@
ifneq (\$(IMAGEOPT)\$(CONFIG_IMAGEOPT),)
package/preconfig: \$(TARGET_DIR)/etc/uci-defaults/$preconfig
endif