debian/control

@@ -12,7 +12,8 @@ Homepage: https://www.ccb.jhu.edu/software/kraken2/
 Package: kraken2
 Architecture: any
 Depends: ${shlibs:Depends},
-         ${misc:Depends}
+         ${misc:Depends},
+         ncbi-blast+
 Description: taxonomic classification system using exact k-mer matches
  Kraken 2 is the newest version of Kraken, a taxonomic classification
  system using exact k-mer matches to achieve high accuracy and fast

debian/patches/fix_reading_fasta.patch

+Description: Slighly more robust method to obtain taxid of fasta files to at
+  least enable reading the provided data examples of autopkgtest
+Bug-Debian: https://bugs.debian.org/889623
+Forwarded: https://github.com/DerrickWood/kraken/issues/111
+Author: Andreas Tille <tille@debian.org>
+Last-Update: Wed, 07 Feb 2018 13:41:39 +0100
+
+--- a/scripts/scan_fasta_file.pl
++++ b/scripts/scan_fasta_file.pl
+@@ -32,6 +32,8 @@ while (<>) {
+   # while (/.../g) needed because non-redundant DBs sometimes have multiple
+   #   sequence IDs in the header; extra sequence IDs are prefixed by
+   #   '\x01' characters (if downloaded in FASTA format from NCBI FTP directly).
++  s/^>gi\|/>/;
++  s/\| .*//;
+   while (/(?:^>|\x01)(\S+)/g) {
+     my $seqid = $1;
+     my $taxid = kraken2lib::check_seqid($seqid);

debian/patches/series

 fix_install.patch
 hardening+debug_options.patch
+fix_reading_fasta.patch

debian/tests/run-unit-test

@@ -4,9 +4,6 @@ pkg=kraken2
 
 if [ "${AUTOPKGTEST_TMP}" = "" ] ; then
   AUTOPKGTEST_TMP=$(mktemp -d /tmp/${pkg}-test.XXXXXX)
-  # Double quote below to expand the temporary directory variable now versus
-  # later is on purpose.
-  # shellcheck disable=SC2064
   trap "rm -rf ${AUTOPKGTEST_TMP}" 0 INT QUIT ABRT PIPE TERM
 fi
 
@@ -17,7 +14,11 @@ gunzip -r *
 
 kraken2-build --add-to-library Acartia_tonsa.fasta --db test_db
 kraken2-build --add-to-library Acinetobacter_phage.fasta --db test_db
-kraken2-build --build --minimizer-len 5 --db test_db
-kraken2 --db test_db test.fa > kraken.output
-## kraken-report --db test_db kraken.output
+# kraken2-build --build --minimizer-len 5 --db test_db
+#   This leads to
+## kraken2-build: number of minimizer spaces (6) exceeds max
+## for minimizer len (5); max: 1
+# kraken2 --db test_db test.fa > kraken.output
+#   This leads to
+## kraken2: database ("./test_db") does not contain necessary file taxo.k2d