zshrc: Move minimal-shell to its own file

Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>

diff --git a/doc/grmlzshrc.t2t b/doc/grmlzshrc.t2t
index c058db9..d10e0db 100644 (file)
--- a/doc/grmlzshrc.t2t
+++ b/doc/grmlzshrc.t2t
@@ -569,10 +569,6 @@ Returns true, if run within an utf environment, else false.
 Creates directory including parent directories, if necessary. Then changes
 current working directory to it.
 
 Creates directory including parent directories, if necessary. Then changes
 current working directory to it.
 

-: **minimal-shell()**
-Spawns a minimally set up MirBSD Korn shell. It references no files in /usr,
-so that file system can be unmounted.
-

 : **modified()**
 Lists files in current directory, which have been modified within the
 last N days. N is an integer to be passed as first and only argument.
 : **modified()**
 Lists files in current directory, which have been modified within the
 last N days. N is an integer to be passed as first and only argument.

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index 7c71ff4..ef4b3a9 100644 (file)
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -2149,19 +2149,6 @@ deswap() {
     print 'Finished, running "swapoff -a; swapon -a" may also be useful.'
 }
 
     print 'Finished, running "swapoff -a; swapon -a" may also be useful.'
 }
 

-# spawn a minimally set up mksh - useful if you want to umount /usr/.
-minimal-shell() {
-    emulate -L zsh
-    local shell="/bin/mksh"
-
-    if [[ ! -x ${shell} ]]; then
-        printf '`%s'\'' not available, giving up.\n' ${shell} >&2
-        return 1
-    fi
-
-    exec env -i ENV="/etc/minimal-shellrc" HOME="$HOME" TERM="$TERM" ${shell}
-}
-

 # a wrapper for vim, that deals with title setting
 #   VIM_OPTIONS
 #       set this array to a set of options to vim you always want
 # a wrapper for vim, that deals with title setting
 #   VIM_OPTIONS
 #       set this array to a set of options to vim you always want

diff --git a/usr_share_grml/zsh/functions/minimal-shell b/usr_share_grml/zsh/functions/minimal-shell
new file mode 100644 (file)
index 0000000..dd72cff
--- /dev/null
+++ b/usr_share_grml/zsh/functions/minimal-shell
@@ -0,0 +1,15 @@
+# spawn a minimally set up mksh - useful if you want to umount /usr/.
+emulate -L zsh
+
+local shell="/bin/mksh"
+local env_file="/etc/minimal-shellrc"
+
+if [[ ! -x ${shell} ]]; then
+    printf '`%s'\'' not available, giving up.\n' ${shell} >&2
+    return 1
+elif [[ ! -f ${env_file} ]]; then
+    printf 'minimal-shell: Configuration missing: `%s'\''\n' ${shell} >&2
+    return 2
+fi
+
+exec env -i ENV="$env_file" HOME="$HOME" TERM="$TERM" ${shell}