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Check-in Number:
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1674 | |
| Date: |
2002-Jan-28 17:23:20 (local)
2002-Jan-28 16:23:20 (UTC) |
| User: | ms |
| Branch: | |
| Comment: |
still unfinished DUE example |
| Tickets: |
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| Inspections: |
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| Files: |
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ossp-pkg/rc/rc-sample.pod 1.1 -> 1.2
--- rc-sample.pod 2002/01/23 16:39:53 1.1
+++ rc-sample.pod 2002/01/28 16:23:20 1.2
@@ -155,15 +155,120 @@
=head1 USE CASE: Dynamic User Environment (DUE)
- ....
+=over 4
-# rc configuration for Dynamic User Environment (DUE)
-Dirs .:..//
-Name .duerc
-RequireUmask 022
-RequireOwner $USER
-RequireGroup %{GROUP}
+=item F<$HOME/.bashrc>
- ....
+ cd () {
+ eval `rc --eval --conf=$HOME/.duecf - leave`
+ builtin cd ${1+"$@"}
+ eval `rc --eval --conf=$HOME/.duecf - enter`
+ }
+
+=item F<$HOME/.duecf>
+
+ Dirs .:..// # current and all parent dirs
+ Name .duerc
+ NameGlobal $HOME/.dueglobal:/etc/dueglobal
+ RequireUmask 022
+ RequireOwner %{USER}
+ RequireGroup %{GROUP}
+ Functions $HOME/.duefunc
+
+=item F<$HOME/.duefunc>
+
+ # append (or optionally prepend) one or more directories (optionally
+ # have to be existing) to a colon-separated path variable. In case a
+ # directory already exists, it is first removed.
+ #
+ # Usage: duePathAdd [-p] [-e] <variable> <dir> [<dir> ...]
+ # Example: duePathAdd -e PATH /bin /sbin /usr/bin /usr/sbin /usr/ccs/bin
+ #
+ duePathAdd () {
+ _prepend=0
+ _exists=0
+ while [ $# -gt 0 ]; do
+ case $1 in
+ -p ) _prepend=1; shift ;;
+ -e ) _exists=1; shift ;;
+ * ) break ;;
+ esac
+ done
+ _var="$1"
+ shift
+ _edit_del=""
+ _edit_add=""
+ for _dir in "$@"; do
+ if [ ".${_exists}" = .1 ] && [ ! -d "${_dir}" ]; then
+ continue
+ fi
+ _edit_del="${_edit_del} -e 's;^${_dir}\$;;' -e 's;^${_dir}:;;'"
+ _edit_del="${_edit_del} -e 's;:${_dir}:;:;' -e 's;:${_dir}\$;;'"
+ if [ ".${_prepend}" = .0 ]; then
+ _edit_add="${_edit_add} -e 's;\$;:${_dir};'"
+ else
+ _edit_add="-e 's;^;${_dir}:;' ${_edit_add}"
+ fi
+ done
+ if [ ".${_edit_del}${_edit_add}" != . ]; then
+ eval "${_var}=\`echo \"\$${_var}\" | sed ${_edit_del} ${_edit_add}\`"
+ fi
+ unset _prepend _exists _var _edit_del _edit_add _dir
+ }
+
+ #
+ # remove one or more directories from a colon-separated path variable
+ #
+ # Usage: duePathDel <variable> <dir> [<dir> ...]
+ # Example: duePathDel PATH /bin /sbin /usr/bin /usr/sbin /usr/ccs/bin
+ #
+ duePathDel () {
+ _var="$1"
+ shift
+ _edit=""
+ for _dir in "$@"; do
+ _edit="${_edit} -e 's;^${_dir}\$;;' -e 's;^${_dir}:;;'"
+ _edit="${_edit} -e 's;:${_dir}:;:;' -e 's;:${_dir}\$;;'"
+ done
+ eval "${_var}=\`echo \"\$${_var}\" | sed ${_edit}\`"
+ unset _var _edit _dir
+ }
+
+
+=item F</cw/.duerc>
+
+ <event name=enter>
+ duePathAdd PATH $CWD/bin $CWD/sbin
+ duePathAdd MANPATH $CWD/man
+ duePathAdd INFOPATH $CWD/info
+ duePathAdd LD_LIBRARY_PATH $CWD/lib
+ </event>
+ <event name=leave>
+ duePathDel PATH $CWD/bin $CWD/sbin
+ duePathDel MANPATH $CWD/man
+ duePathDel INFOPATH $CWD/info
+ duePathDel LD_LIBRARY_PATH $CWD/lib
+ </event>
+
+=item F<$HOME/.dueglobal>
+
+ <directory path=/cw>
+ <event name=enter>
+ duePathAdd PATH /cw/bin /cw/sbin
+ duePathAdd MANPATH /cw/man
+ duePathAdd INFOPATH /cw/info
+ duePathAdd LD_LIBRARY_PATH /cw/lib
+ </event>
+ <event name=leave>
+ duePathDel PATH /cw/bin /cw/sbin
+ duePathDel MANPATH /cw/man
+ duePathDel INFOPATH /cw/info
+ duePathDel LD_LIBRARY_PATH /cw/lib
+ </event>
+ </directory>
+ <directory path=/usr/opkg>
+ ...
+ </directory>
=cut
+
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