diff options
Diffstat (limited to 'pkgs/build-support/buildenv/builder.pl')
| -rwxr-xr-x | pkgs/build-support/buildenv/builder.pl | 158 |
1 files changed, 67 insertions, 91 deletions
diff --git a/pkgs/build-support/buildenv/builder.pl b/pkgs/build-support/buildenv/builder.pl index bb9e45b62ac..0514453d845 100755 --- a/pkgs/build-support/buildenv/builder.pl +++ b/pkgs/build-support/buildenv/builder.pl @@ -9,10 +9,6 @@ use File::Basename; STDOUT->autoflush(1); my $out = $ENV{"out"}; -mkdir "$out", 0755 || die "error creating $out"; - - -my $symlinks = 0; my @pathsToLink = split ' ', $ENV{"pathsToLink"}; @@ -27,95 +23,58 @@ sub isInPathsToLink { } -sub symLinkMkdir { - my $src = shift; - my $dst = shift; - my $dir = dirname $dst; - mkpath $dir; - symlink($src, $dst) || - die "error creating link `$dst': $!"; - $symlinks++; -} +# For each activated package, determine what symlinks to create. +my %symlinks; +$symlinks{""} = ""; # create root directory -# For each activated package, create symlinks. +sub findFiles; -sub createLinks { - my $relName = shift; - my $srcDir = shift; - my $dstDir = shift; - my $ignoreCollisions = shift; +sub findFilesInDir { + my ($relName, $target, $ignoreCollisions) = @_; - my @srcFiles = glob("$srcDir/*"); - - foreach my $srcFile (@srcFiles) { - my $baseName = $srcFile; - $baseName =~ s/^.*\///g; # strip directory - my $dstFile = "$dstDir/$baseName"; - my $relName2 = "$relName/$baseName"; - - # Urgh, hacky... - if ($srcFile =~ /\/propagated-build-inputs$/ || - $srcFile =~ /\/nix-support$/ || - $srcFile =~ /\/perllocal.pod$/ || - $srcFile =~ /\/info\/dir$/ || - ( $relName2 =~ /^\/share\/mime\// && !( $relName2 =~ /^\/share\/mime\/packages/ ) ) || - $srcFile =~ /\/log$/) - { - # Do nothing. - } - - elsif (-d $srcFile) { - - if (!isInPathsToLink($relName2)) { - # This path is not in the list of paths to link, but - # some of its children may be. - createLinks($relName2, $srcFile, $dstFile, $ignoreCollisions); - next; - } - - lstat $dstFile; - - if (-d _) { - createLinks($relName2, $srcFile, $dstFile, $ignoreCollisions); - } - - elsif (-l _) { - my $target = readlink $dstFile or die; - if (!-d $target) { - die "collission between directory `$srcFile' and non-directory `$target'"; - } - unlink $dstFile or die "error unlinking `$dstFile': $!"; - mkpath $dstFile; - createLinks($relName2, $target, $dstFile, $ignoreCollisions); - createLinks($relName2, $srcFile, $dstFile, $ignoreCollisions); - } - - else { - symLinkMkdir $srcFile, $dstFile; - } - } - - elsif (-l $dstFile) { - my $oldTarget = readlink $dstFile; - my $oldTargetReal = abs_path $oldTarget; - my $newTarget = $srcFile; - my $newTargetReal = abs_path $newTarget; - unless ($newTargetReal eq $oldTargetReal) { - if ($ignoreCollisions) { - warn "collision between `$newTarget' and `$oldTarget'\n"; - } - else { - die "collision between `$newTarget' and `$oldTarget'"; - } - } - } + opendir DIR, "$target" or die "cannot open `$target': $!"; + my @names = readdir DIR or die; + closedir DIR; + + foreach my $name (@names) { + next if $name eq "." || $name eq ".."; + findFiles("$relName/$name", "$target/$name", $name, $ignoreCollisions); + } +} + +sub findFiles { + my ($relName, $target, $baseName, $ignoreCollisions) = @_; + + # Urgh, hacky... + return if + $relName eq "/propagated-build-inputs" || + $relName eq "/nix-support" || + $relName =~ /info\/dir/ || + ( $relName =~ /^\/share\/mime\// && !( $relName =~ /^\/share\/mime\/packages/ ) ) || + $baseName eq "perllocal.pod" || + $baseName eq "log"; + + my $oldTarget = $symlinks{$relName}; + + if (!defined $oldTarget) { + $symlinks{$relName} = $target; + return; + } - else { - next unless isInPathsToLink($relName2); - symLinkMkdir $srcFile, $dstFile; + unless (-d $target && ($oldTarget eq "" || -d $oldTarget)) { + if ($ignoreCollisions) { + warn "collision between `$target' and `$oldTarget'"; + return; + } else { + die "collision between `$target' and `$oldTarget'"; } } + + findFilesInDir($relName, $oldTarget, $ignoreCollisions) unless $oldTarget eq ""; + findFilesInDir($relName, $target, $ignoreCollisions); + + $symlinks{$relName} = ""; # denotes directory } @@ -130,8 +89,7 @@ sub addPkg($;$) { return if (defined $done{$pkgDir}); $done{$pkgDir} = 1; -# print "symlinking $pkgDir\n"; - createLinks("", "$pkgDir", "$out", $ignoreCollisions); + findFiles("", "$pkgDir", "", $ignoreCollisions); my $propagatedFN = "$pkgDir/nix-support/propagated-user-env-packages"; if (-e $propagatedFN) { @@ -140,7 +98,6 @@ sub addPkg($;$) { close PROP; my @propagated = split ' ', $propagated; foreach my $p (@propagated) { - print "$pkgDir propagates $p\n"; $postponed{$p} = 1 unless defined $done{$p}; } } @@ -167,17 +124,36 @@ while (scalar(keys %postponed) > 0) { } } + +# Create the symlinks. +my $nrLinks = 0; +foreach my $relName (sort keys %symlinks) { + my $target = $symlinks{$relName}; + my $abs = "$out/$relName"; + next unless isInPathsToLink $relName; + if ($target eq "") { + #print "creating directory $relName\n"; + mkpath $abs or die "cannot create directory `$abs': $!"; + } else { + #print "creating symlink $relName to $target\n"; + symlink $target, $abs || + die "error creating link `$abs': $!"; + $nrLinks++; + } +} + + if (-x "$out/bin/update-mime-database" && -d "$out/share/mime/packages") { system("$out/bin/update-mime-database -V $out/share/mime") == 0 or die "Can't update mime-database"; } -print STDERR "created $symlinks symlinks in user environment\n"; +print STDERR "created $nrLinks symlinks in user environment\n"; my $manifest = $ENV{"manifest"}; -if ($manifest ne "") { +if ($manifest) { symlink($manifest, "$out/manifest") or die "cannot create manifest"; } |