pkg-stats: add statistics about hash files

As discussed during the Buildroot meeting, this commit extends the
pkg-stats script to include statistics about the number of packages
having vs. not having the hash file.

As of today, we have 104 packages with the hash file, and 1274
packages without.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

support/scripts/pkg-stats

@@ -67,6 +67,7 @@ td.lotsofpatches {
 <td class=\"centered\">Infrastructure</td>
 <td class=\"centered\">License</td>
 <td class=\"centered\">License files</td>
+<td class=\"centered\">Hash file</td>
 </tr>
 "
 
@@ -82,6 +83,8 @@ packages_with_licence=0
 packages_without_licence=0
 packages_with_license_files=0
 packages_without_license_files=0
+packages_with_hash_file=0
+packages_without_hash_file=0
 total_patch_count=0
 cnt=0
 
@@ -191,6 +194,7 @@ for i in $(find boot/ linux/ package/ -name '*.mk' | sort) ; do
     fi
 
     pkg=$(basename $i)
+    dir=$(dirname $i)
     pkg=${pkg%.mk}
     pkgvariable=$(echo ${pkg} | tr "a-z-" "A-Z_")
 
@@ -231,6 +235,14 @@ for i in $(find boot/ linux/ package/ -name '*.mk' | sort) ; do
 	license_files=0
     fi
 
+    if test -f ${dir}/${pkg}.hash; then
+	packages_with_hash_file=$(($packages_with_hash_file+1))
+	hash_file=1
+    else
+	packages_without_hash_file=$(($packages_without_hash_file+1))
+	hash_file=0
+    fi
+
     echo "<tr>"
 
     echo "<td>$cnt</td>"
@@ -279,6 +291,12 @@ for i in $(find boot/ linux/ package/ -name '*.mk' | sort) ; do
 	echo "<td class=\"centered correct\">Yes</td>"
     fi
 
+    if [ ${hash_file} -eq 0 ] ; then
+	echo "<td class=\"centered wrong\">No</td>"
+    else
+	echo "<td class=\"centered correct\">Yes</td>"
+    fi
+
     echo "</tr>"
 
 done
@@ -335,6 +353,14 @@ echo "<td>Packages not having licence files information</td>"
 echo "<td>$packages_without_license_files</td>"
 echo "</tr>"
 echo "<tr>"
+echo "<td>Packages having hash file</td>"
+echo "<td>$packages_with_hash_file</td>"
+echo "</tr>"
+echo "<tr>"
+echo "<td>Packages not having hash file</td>"
+echo "<td>$packages_without_hash_file</td>"
+echo "</tr>"
+echo "<tr>"
 echo "<td>Number of patches in all packages</td>"
 echo "<td>$total_patch_count</td>"
 echo "</tr>"