epm play: add singularityapp (fix github issue 49)

play.d/singularityapp.sh

+#!/bin/sh
+
+PKGNAME=singularityapp
+SUPPORTEDARCHES="x86_64"
+VERSION="$2"
+DESCRIPTION="SingularityApp from the official site"
+URL="https://snapcraft.io/singularityapp"
+
+. $(dirname $0)/common.sh
+
+SNAPNAME="singularityapp"
+# https://api.snapcraft.io/api/v1/snaps/download/qc6MFRM433ZhI1XjVzErdHivhSOhlpf0_37.snap
+PKGURL="$(eget -O- -H Snap-Device-Series:16 https://api.snapcraft.io/v2/snaps/info/$SNAPNAME | epm --inscript tool json -b | grep '\["channel-map",0,"download","url"\]' | head -n1 | sed -e 's|.*"\(.*\)"$|\1|' )" || fatal "Can't get URL"
+
+epm install "$PKGURL"

repack.d/singularityapp.sh

+#!/bin/sh -x
+# It will run with two args: buildroot spec
+BUILDROOT="$1"
+
+SPEC="$2"
+
+. $(dirname $0)/common.sh
+
+add_bin_exec_command $PRODUCT
+cat <<EOF >$BUILDROOT/usr/bin/$PRODUCT
+#!/bin/sh
+LD_LIBRARY_PATH=$PRODUCTDIR/$PRODUCT/lib/x86_64-linux-gnu exec $PRODUCTDIR/$PRODUCT --disable-gpu --no-sandbox "\$@"
+EOF
+
+cd .$PRODUCTDIR || fatal
+
+for i in usr/lib/x86_64-linux-gnu/* ; do
+    move_file $PRODUCTDIR/$i $PRODUCTDIR/lib/x86_64-linux-gnu/$(basename $i)
+done
+
+for i in etc meta snap lib/dri usr/bin usr/lib usr/include usr/share/X11 usr/share/misc usr/share/doc usr/share/fonts ; do
+    remove_dir $PRODUCTDIR/$i
+done
+
+for i in libEGL.so.1 libdrm.so.2 libdrm_amdgpu.so.1 libva-drm.so.2 libva-x11.so.2 libva.so.2 ; do
+    remove_file $PRODUCTDIR/lib/x86_64-linux-gnu/$i
+done
+
+for i in libdbus-1.so.3 libexpat.so.1 libkeyutils.so.1 libXss.so.1 libXss.so.1.0.0 ; do
+    remove_file $PRODUCTDIR/lib/x86_64-linux-gnu/$i
+done
+
+cd >/dev/null
+
+add_libs_requires