Add $register_shell var, to (un)register shells at post-{inst,rm} for binpkgs.

Multiple shells can be (un)registered by a single package, like:

register_shell="/bin/zsh-foo /bin/zsh-blah"

--HG--
extra : convert_revision : 0172a74b41e26089da97fcdc8cc2d5cb6ae147f2

doc/TODO

@@ -11,7 +11,6 @@ Packages:
    in a package, to know when update it.
  * Create /etc/issue.
  * Create files in /etc/skel for new users.
- * Register shells in /etc/shells.
  
 xbps-bin:
  * Add support to handle conf_files and keep_dirs from package metadata.

shutils/metadata.sh

@@ -320,6 +320,15 @@ _EOF
 	else
 		rm -f $TMPINFOLIST
 	fi
+
+	# Register the shells into /etc/shells if requested.
+	if [ -n "${register_shell}" ]; then
+		triggers="$triggers register-shell"
+		for f in ${register_shell}; do
+			echo $f >> $metadir/shells
+		done
+	fi
+
 	$XBPS_REGPKGDB_CMD sanitize-plist $metadir/files.plist
 	$XBPS_REGPKGDB_CMD sanitize-plist $metadir/props.plist
 	chmod 644 $metadir/*

shutils/tmpl_funcs.sh

@@ -61,7 +61,7 @@ reset_tmpl_vars()
 	local TMPL_VARS="pkgname distfiles configure_args configure_env \
 			make_build_args make_install_args build_style	\
 			short_desc maintainer long_desc checksum wrksrc	\
-			patch_files make_cmd base_chroot \
+			patch_files make_cmd base_chroot register_shell \
 			make_build_target configure_script \
 			pre_configure pre_build pre_install post_install \
 			make_install_target version \

templates/bash/template

@@ -22,6 +22,7 @@ long_desc="
  modification."
 
 base_chroot=yes
+register_shell="/bin/bash"
 
 Add_dependency run	glibc
 Add_dependency full	ncurses

templates/dash/template

@@ -19,6 +19,7 @@ long_desc="
  dash in 2002."
 
 base_chroot=yes
+register_shell="/bin/sh"
 Add_dependency run glibc
 
 post_install()