restructure explorer

Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>

ROADMAP

@@ -5,7 +5,8 @@ x Define how to get information from clients
 x Create configuration tree from manifest
    x write binaries, which create the tree when called from manifest (cdist_tree_wrapper)
 x Define configuration paths (doc/internal/config-layout)
-- Write at least one type
+- redo explorers (see manpage)
+/ Write at least one type
 - Parse configuration tree / generate code to be executed on client
    - types?
    - can/may types modify tree?

bin/cdist-deploy-to

@@ -23,13 +23,13 @@
 
 . cdist-config
 
-[ $# -eq 1 ] || __cdist_usage "target_host"
+[ $# -eq 1 ] || __cdist_usage "<target host>"
 
 set -e
 
 # Internal variables, usable by
 export __cdist_target_host="$1"
-export __cdist_intern_deploy_host="$(cdist_explore_hostname)"
+export __cdist_source_host="$(cdist_explore_hostname)"
 
 . cdist-build "$__cdist_intern_target_host"
 . cdist-remote-exec "$__cdist_intern_target_host"

conf/explorer/hostname

@@ -19,7 +19,4 @@
 #
 #
 
-cdist_explore_hostname()
-{
-   hostname
-}
+hostname

conf/explorer/os

@@ -22,18 +22,14 @@
 #
 #
 
-cdist_explore_os()
-{
-   # Ubuntu is also Debian, thus return if Ubuntu was found
-   if grep -q ^DISTRIB_ID=Ubuntu /etc/lsb-release 2>/dev/null; then
-      echo ubuntu
-      return
-   fi
+# Ubuntu is also Debian, thus return if Ubuntu was found
+if grep -q ^DISTRIB_ID=Ubuntu /etc/lsb-release 2>/dev/null; then
+   echo ubuntu
+   exit 0
+fi
 
-   [ -f /etc/arch-release ] && echo archlinux
+[ -f /etc/arch-release ] && echo archlinux
 
-   [ -f /etc/debian_version ] && echo debian
+[ -f /etc/debian_version ] && echo debian
 
-   [ -f /etc/redhat-release ] && echo redhat
-
-}
+[ -f /etc/redhat-release ] && echo redhat

doc/man/cdist-explorer.text

@@ -23,6 +23,9 @@ In case of significant errors, the shell script may exit
 non-zero and return an error message on stderr, which
 will cause the cdist run to abort.
 
+Explorers can reuse other explorers on the target system
+by calling $__cdist_explorer_path/<explorer_name>.
+
 SEE ALSO
 --------
 cdist(7)