Add script to convert i?86 packages to compat32

convert32pkg.sh

@@ -0,0 +1,56 @@
+#!/bin/sh -e
+
+pkginfodir='/var/log/packages/'
+pkgscriptdir='/var/log/scripts/'
+
+if [ "$#" -lt 1 ]; then
+    echo "Usage: $0 <package>" 1>&2
+    exit 1
+fi
+
+pkg="$1"
+
+temp="$(mktemp -d)"
+trap "rm -rf '$temp'" EXIT
+
+tar xf "$pkg" -C "$temp"
+
+# Extract all package info
+# See /sbin/installpkg
+pkgbase="$(echo "$pkg" | sed -e 's?.*/??;s/\.t[bglx]z$//')"
+pkgext="$(echo "$pkg" | sed -e 's?.*/??;s/.*\.\(t[bglx]z\)$/\1/')"
+pkgname="$(echo "$pkgbase" | sed -e 's?-[^-]*-[^-]*-[^-]*$??')"
+pkgver="$(echo "$pkgbase" | sed -e 's?.*-\([^-]*\)-[^-]*-[^-]*$?\1?')"
+pkgarch="$(echo "$pkgbase" | sed -e 's?.*-[^-]*-\([^-]*\)-[^-]*$?\1?')"
+pkgbuild="$(echo "$pkgbase" | sed -e 's?.*-[^-]*-[^-]*-\([^-]*\)$?\1?')"
+
+pkginfo="$pkginfodir/$pkgname-$pkgver-x86_64-$pkgbuild"
+pkgscript="$pkgscriptdir/$pkgname-$pkgver-x86_64-$pkgbuild"
+if [ ! -f "$pkginfo" ]; then
+    echo "Package $pkgname-$pkgver-x86_64-$pkgbuild is not installed. Can't proceed." 1>&2
+    exit 1
+fi
+
+# See /sbin/removepkg
+if fgrep "./" "$pkginfo" 1> /dev/null 2>&1; then
+    TRIGGER="^\.\/"
+else
+    TRIGGER="FILE LIST:"
+fi
+
+# Remove all files present in the x86_64 package
+sed -n "/$TRIGGER/,/^$/p" "$pkginfo" | fgrep -v "FILE LIST:" | grep -v "^install/" | sort -u | while read -r file; do
+    rm -vf "$temp/$file" 2> /dev/null || true
+done
+find "$temp" -mindepth 1 -type d -empty -delete
+
+# Remove all symlinks present in the x86_64 package
+# See /sbin/removepkg
+sed -n -e 's,^[ ]*( [ ]*cd[ ]* .* [ ]*; [ ]*\(rm\|ln\) [ ]*-\(rf\|sf\)[ ]* .* [ ]*)[ ]*$,&,p' -e 's,^[ ]*config .*[ ]*,&,p' "$pkgscript" > "$temp/install/doinst"
+fgrep -vxf "$temp/install/doinst" "$temp/install/doinst.sh" > "$temp/install/doinst.sh.new"
+mv "$temp/install/doinst.sh.new" "$temp/install/doinst.sh"
+rm -f "$temp/install/doinst"
+
+( cd "$temp"
+    makepkg -l y -c n "$OLDPWD/$pkgname-compat32-$pkgver-x86_64-$pkgbuild.$pkgext"
+)