[debhelper-devel] [Linux-ima-user] [RFC PATCH v1 2/3] Replace dh_md5sums debhelper with dh_checksums

Dmitry Kasatkin d.kasatkin at samsung.com
Tue Oct 21 09:00:41 UTC 2014


Hi,

It is actually very difficult to see the "diff", because patch removes
file and add new file..

You better do it in 2 steps...

1) rename dh_md5sums to dh_checksums
2) do changes.

Then it will be very clear what are your changes..

- Dmitry

On 20/10/14 15:57, Mimi Zohar wrote:
> The new dh_checksums debhelper extends the existing dh_md5sums to
> support larger file digests (eg. sha256, sha512).  The resulting
> checksums are stored in an algorithm specific filename
> DEBIAN/<algo sums>.
>
> This patch defines a new option "--algo=" to specify the hash
> algorithm.  For backwards compatability, the default hash
> algorithm is md5.
>
> Changelog v1:
> - Based on the mailing list discussion, replace the existing dh_md5sums
> script with a single debhelper script that supports larger hashes.
> ---
>  dh                |   2 +-
>  dh_checksums      | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  dh_md5sums        | 100 ---------------------------------------------
>  man/po4a/po4a.cfg |   2 +-
>  4 files changed, 120 insertions(+), 102 deletions(-)
>  create mode 100755 dh_checksums
>  delete mode 100755 dh_md5sums
>
> diff --git a/dh b/dh
> index 4f80f75..127f3d5 100755
> --- a/dh
> +++ b/dh
> @@ -408,7 +408,7 @@ if (! getpackages("arch")) {
>  my @b=qw{
>  	dh_installdeb
>  	dh_gencontrol
> -	dh_md5sums
> +	dh_checksums
>  	dh_builddeb
>  };
>  $sequences{clean} = [qw{
> diff --git a/dh_checksums b/dh_checksums
> new file mode 100755
> index 0000000..408e192
> --- /dev/null
> +++ b/dh_checksums
> @@ -0,0 +1,118 @@
> +#!/usr/bin/perl -w
> +
> +=head1 NAME
> +
> +dh_checksums - generate the DEBIAN/<algo sums> file
> +
> +=cut
> +
> +use strict;
> +use Cwd;
> +use Debian::Debhelper::Dh_Lib;
> +
> +=head1 SYNOPSIS
> +
> +B<dh_checksums> [S<I<debhelper options>>] [B<-x>] [B<-X>I<item>] [B<--include-conffiles>] [B<--alg=>I<algorithm>]
> +
> +=head1 DESCRIPTION
> +
> +B<dh_checksums> is a debhelper program that is responsible for generating
> +a checksums file, which lists the hashes of each file in the package.
> +These files are used by the B<debsums> package.
> +
> +All files in F<DEBIAN/> are omitted from the F<checksums> file, as are all
> +conffiles (unless you use the B<--include-conffiles> switch).
> +
> +The checksums file is installed with proper permissions and ownerships.
> +
> +=head1 OPTIONS
> +
> +=over 4
> +
> +=item B<-x>, B<--include-conffiles>
> +
> +Include conffiles in the checksums list. Note that this information is
> +redundant since it is included elsewhere in Debian packages.
> +
> +=item B<-X>I<item>, B<--exclude=>I<item>
> +
> +Exclude files that contain I<item> anywhere in their filename from
> +being listed in the checksums file.
> +
> +=item B<--alg=>I<algorithm>
> +
> +Used to override the default hash algorithm (md5).  The current set
> +of valid hash algorithms are: b<md5>, b<sha256>, b<sha512>
> +
> +=back
> +
> +=cut
> +
> +init(options => {
> +	"x" => \$dh{INCLUDE_CONFFILES}, # is -x for some unknown historical reason..
> +	"include-conffiles" => \$dh{INCLUDE_CONFFILES},
> +	"alg=s" => \$dh{ALG},
> +});
> +
> +if (defined $dh{ALG}) {
> +	my @algorithms = <md5 sha256 sha512>;
> +	use List::MoreUtils 'any';
> +	$dh{ALG}="sha256" unless any { /$dh{ALG}/ } @algorithms;
> +} else {
> +	$dh{ALG}="md5";
> +}
> +my $HASHCMD = $dh{ALG}."sum";
> +my $hashsums = $dh{ALG}."sums";
> +
> +foreach my $package (@{$dh{DOPACKAGES}}) {
> +	next if is_udeb($package);
> +
> +	my $tmp=tmpdir($package);
> +
> +	if (! -d "$tmp/DEBIAN") {
> +		doit("install","-d","$tmp/DEBIAN");
> +	}
> +
> +	# Check if we should exclude conffiles.
> +	my $exclude="";
> +	if (! $dh{INCLUDE_CONFFILES} && -r "$tmp/DEBIAN/conffiles") {
> +		# Generate exclude regexp.
> +		open (CONFF,"$tmp/DEBIAN/conffiles");
> +		while (<CONFF>) {
> +			chomp;
> +			s/^\///;
> +			$exclude.="! -path \"./$_\" ";
> +		}
> +		close CONFF;
> +	}
> +
> +	# See if we should exclude other files.
> +	if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
> +		$exclude.="! \\( $dh{EXCLUDE_FIND} \\) ";
> +	}
> +
> +	my $find="find . -type f $exclude ! -regex './DEBIAN/.*' -printf '%P\\0'";
> +	complex_doit("(cd $tmp >/dev/null ; $find | LC_ALL=C sort -z | xargs -r0 $HASHCMD > DEBIAN/$hashsums) >/dev/null");
> +	# If the file's empty, no reason to waste inodes on it.
> +	if (-z "$tmp/DEBIAN/$hashsums") {
> +		doit("rm","-f","$tmp/DEBIAN/$hashsums");
> +	}
> +	else {
> +		doit("chmod",644,"$tmp/DEBIAN/$hashsums");
> +		doit("chown","0:0","$tmp/DEBIAN/$hashsums");
> +	}
> +}
> +
> +=head1 SEE ALSO
> +
> +L<debhelper(7)>
> +
> +This program is a part of debhelper.
> +
> +=head1 AUTHOR
> +
> +Joey Hess <joeyh at debian.org>
> +
> +(Modified by Mimi Zohar <zohar at linux.vnet.ibm.com> to support other digests)
> +
> +=cut
> diff --git a/dh_md5sums b/dh_md5sums
> deleted file mode 100755
> index 4a1264b..0000000
> --- a/dh_md5sums
> +++ /dev/null
> @@ -1,100 +0,0 @@
> -#!/usr/bin/perl -w
> -
> -=head1 NAME
> -
> -dh_md5sums - generate DEBIAN/md5sums file
> -
> -=cut
> -
> -use strict;
> -use Cwd;
> -use Debian::Debhelper::Dh_Lib;
> -
> -=head1 SYNOPSIS
> -
> -B<dh_md5sums> [S<I<debhelper options>>] [B<-x>] [B<-X>I<item>] [B<--include-conffiles>]
> -
> -=head1 DESCRIPTION
> -
> -B<dh_md5sums> is a debhelper program that is responsible for generating
> -a F<DEBIAN/md5sums> file, which lists the md5sums of each file in the package.
> -These files are used by the B<debsums> package.
> -
> -All files in F<DEBIAN/> are omitted from the F<md5sums> file, as are all
> -conffiles (unless you use the B<--include-conffiles> switch).
> -
> -The md5sums file is installed with proper permissions and ownerships.
> -
> -=head1 OPTIONS
> -
> -=over 4
> -
> -=item B<-x>, B<--include-conffiles>
> -
> -Include conffiles in the md5sums list. Note that this information is
> -redundant since it is included elsewhere in Debian packages.
> -
> -=item B<-X>I<item>, B<--exclude=>I<item>
> -
> -Exclude files that contain I<item> anywhere in their filename from
> -being listed in the md5sums file.
> -
> -=back
> -
> -=cut
> -
> -init(options => {
> -	"x" => \$dh{INCLUDE_CONFFILES}, # is -x for some unknown historical reason..
> -	"include-conffiles" => \$dh{INCLUDE_CONFFILES},
> -});
> -
> -foreach my $package (@{$dh{DOPACKAGES}}) {
> -	next if is_udeb($package);
> -	
> -	my $tmp=tmpdir($package);
> -
> -	if (! -d "$tmp/DEBIAN") {
> -		doit("install","-d","$tmp/DEBIAN");
> -	}
> -
> -	# Check if we should exclude conffiles.
> -	my $exclude="";
> -	if (! $dh{INCLUDE_CONFFILES} && -r "$tmp/DEBIAN/conffiles") {
> -		# Generate exclude regexp.
> -		open (CONFF,"$tmp/DEBIAN/conffiles");
> -		while (<CONFF>) {
> -			chomp;
> -			s/^\///;
> -			$exclude.="! -path \"./$_\" ";
> -		}
> -		close CONFF;
> -	}
> -	
> -	# See if we should exclude other files.
> -	if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
> -		$exclude.="! \\( $dh{EXCLUDE_FIND} \\) ";
> -	}
> -	
> -	my $find="find . -type f $exclude ! -regex './DEBIAN/.*' -printf '%P\\0'";
> -	complex_doit("(cd $tmp >/dev/null ; $find | LC_ALL=C sort -z | xargs -r0 md5sum > DEBIAN/md5sums) >/dev/null");
> -	# If the file's empty, no reason to waste inodes on it.
> -	if (-z "$tmp/DEBIAN/md5sums") {
> -		doit("rm","-f","$tmp/DEBIAN/md5sums");
> -	}
> -	else {
> -		doit("chmod",644,"$tmp/DEBIAN/md5sums");
> -		doit("chown","0:0","$tmp/DEBIAN/md5sums");
> -	}
> -}
> -
> -=head1 SEE ALSO
> -
> -L<debhelper(7)>
> -
> -This program is a part of debhelper.
> -
> -=head1 AUTHOR
> -
> -Joey Hess <joeyh at debian.org>
> -
> -=cut
> diff --git a/man/po4a/po4a.cfg b/man/po4a/po4a.cfg
> index 311762f..b89ca37 100644
> --- a/man/po4a/po4a.cfg
> +++ b/man/po4a/po4a.cfg
> @@ -13,6 +13,7 @@
>  [type: pod] dh_auto_test	$lang:man/$lang/dh_auto_test.pod	add_fr:man/po4a/add.fr	add_es:man/po4a/add3.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_bugfiles		$lang:man/$lang/dh_bugfiles.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add3.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_builddeb 	$lang:man/$lang/dh_builddeb.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add1.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
> +[type: pod] dh_checksums	$lang:man/$lang/dh_checksums.pod	add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_clean 		$lang:man/$lang/dh_clean.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add1.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_compress 	$lang:man/$lang/dh_compress.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add1.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_desktop		$lang:man/$lang/dh_desktop.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add1.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
> @@ -49,7 +50,6 @@
>  [type: pod] dh_lintian		$lang:man/$lang/dh_lintian.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_listpackages	$lang:man/$lang/dh_listpackages.pod	add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_makeshlibs	$lang:man/$lang/dh_makeshlibs.pod	add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
> -[type: pod] dh_md5sums		$lang:man/$lang/dh_md5sums.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_movefiles	$lang:man/$lang/dh_movefiles.pod	add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_perl		$lang:man/$lang/dh_perl.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt
>  [type: pod] dh_prep		$lang:man/$lang/dh_prep.pod		add_fr:man/po4a/add.fr	add_es:man/po4a/add2.es  add_de:man/po4a/add.de  add_pt:man/po4a/add.pt




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