mirror of
https://github.com/zsh-users/zsh
synced 2024-09-06 08:25:56 +00:00
137 lines
3.8 KiB
Bash
Executable file
137 lines
3.8 KiB
Bash
Executable file
#! /bin/sh
|
|
#
|
|
# c2z - environment conversion tool
|
|
# Contributed by Bart Schaefer
|
|
# (Tweaked a bit by Paul Falstad)
|
|
# (Tweaked again by Bart Schaefer)
|
|
#
|
|
# This is a quick script to convert csh aliases to zsh aliases/functions.
|
|
# It also converts the csh environment and local variables to zsh. c2z
|
|
# uses the csh to parse its own dot-files, then processes csh output to
|
|
# convert the csh settings to zsh.
|
|
#
|
|
# When run as a zsh function, c2z runs csh as if it were an interactive
|
|
# shell whenever the parent zsh is interactive. When run as a shell
|
|
# script, the -i switch can be used to force this behavior.
|
|
#
|
|
# The -l (login) switch causes csh to run as if it were a login shell.
|
|
# This is done "properly" if c2z is used as a zsh function, otherwise
|
|
# it's faked by explicitly sourcing .login. Use with caution if your
|
|
# .login initializes an X server or does other one-time-only startup
|
|
# procedures.
|
|
#
|
|
# usage:
|
|
# c2z [-i | -l | filename]
|
|
#
|
|
# You can use this script in your .zshrc or .zlogin files to load your
|
|
# regular csh environment into zsh; for example, in .zlogin:
|
|
#
|
|
# . =(c2z -l)
|
|
#
|
|
# This is not perfect, but it gets most common aliases and variables.
|
|
# It's also rather time-consuming to do this every time you log in.
|
|
# However, if you're moving from csh to zsh for the first time, this
|
|
# can get you started with a familiar environment right away.
|
|
#
|
|
# In case your mailer eats tabs, $T is set to expand to a tab.
|
|
#
|
|
T="`echo x | tr x '\011'`"
|
|
|
|
# If we're zsh, we can run "- csh" to get the complete environment.
|
|
#
|
|
MINUS=""
|
|
LOADFILE=""
|
|
INTERACT=""
|
|
CSH=csh
|
|
case "$ZSH_NAME$ZSH_VERSION$VERSION" in
|
|
zsh*)
|
|
case $1 in
|
|
-l*) MINUS="-" ;;
|
|
-i*) INTERACT="-i" ;;
|
|
*) LOADFILE="source $1" CSH="csh -f";;
|
|
esac
|
|
if [[ -o INTERACTIVE ]]; then INTERACT="-i"; fi
|
|
setopt nobanghist
|
|
;;
|
|
*)
|
|
case $1 in
|
|
-l*) LOADFILE="source ~/.login" ;;
|
|
-i*) INTERACT="-i" ;;
|
|
*) LOADFILE="source $1" CSH="csh -f";;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
( eval $MINUS $CSH $INTERACT ) <<EOF 2>&1 >/dev/null
|
|
$LOADFILE
|
|
alias >! /tmp/cz$$.a
|
|
setenv >! /tmp/cz$$.e
|
|
set >! /tmp/cz$$.v
|
|
EOF
|
|
|
|
# save stdin
|
|
exec 9<&0
|
|
|
|
# First convert aliases
|
|
exec < /tmp/cz$$.a
|
|
|
|
# Taken straight from ctoz except for $T and "alias --"
|
|
sed -e 's/'"$T"'(\(.*\))/'"$T"'\1/' >/tmp/cz$$.1
|
|
grep ! /tmp/cz$$.1 >/tmp/cz$$.2
|
|
grep -v ! /tmp/cz$$.1 >/tmp/cz$$.3
|
|
sed -e "s/'/'"\\\\"''"/g \
|
|
-e 's/^\([^'"$T"']*\)'"$T"'\(.*\)$/alias -- \1='"'\2'/" \
|
|
/tmp/cz$$.3
|
|
sed -e 's/>\(&*\)!/>\1|/g' \
|
|
-e 's/!\*:q/"$@"/g' \
|
|
-e 's/\(![:#]*[^'"$T"']*\):q/"\1"/g' \
|
|
-e 's/!\([-0-9][0-9]*\)\(:x\)*/$\2(fc -nl \1)/g' \
|
|
-e 's/\$:x(fc/$=(fc/g' \
|
|
-e 's/![:#]*\([^'"$T"']\)/$==\1/g' \
|
|
-e 's/\$=\(=[^'"$T"']*\):x/$\1/g' \
|
|
-e 's/\$cwd/$PWD/' \
|
|
-e 's/^\([^'"$T"']*\)'"$T"'\(.*\)$/\1 () { \2 }/' \
|
|
/tmp/cz$$.2
|
|
|
|
# Next, convert environment variables
|
|
exec < /tmp/cz$$.e
|
|
|
|
# Would be nice to deal with embedded newlines, e.g. in TERMCAP, but ...
|
|
sed -e '/^SHLVL/d' \
|
|
-e '/^PWD/d' \
|
|
-e '/^_=/d' \
|
|
-e "s/'/'"\\\\"''"/g \
|
|
-e "s/^\([A-Za-z0-9_]*=\)/export \1'/" \
|
|
-e "s/$/'/"
|
|
|
|
# Finally, convert local variables
|
|
exec < /tmp/cz$$.v
|
|
|
|
sed -e 's/'"$T"'/=/' \
|
|
-e "s/'/'"\\\\"''"/g \
|
|
-e '/^[A-Za-z0-9_]*=[^(]/{
|
|
s/=/='"'/"'
|
|
s/$/'"'/"'
|
|
}' |
|
|
sed -e '/^argv=/d' -e '/^cwd=/d' -e '/^filec=/d' -e '/^status=/d' \
|
|
-e '/^autolist=/s/.*/setopt autolist/' \
|
|
-e '/^correct=all/s//setopt correctall/' \
|
|
-e '/^correct=/s//setopt correct/' \
|
|
-e '/^histchars=/s//HISTCHARS=/' \
|
|
-e '/^history=/s//HISTSIZE=/' \
|
|
-e '/^home=/s//HOME=/' \
|
|
-e '/^ignoreeof=/s/.*/setopt ignoreeof/' \
|
|
-e '/^noclobber=/s/.*/setopt noclobber/' \
|
|
-e '/^notify=/d' \
|
|
-e '/^prompt=/s/!/%h/' \
|
|
-e 's/^prompt/PROMPT/' \
|
|
-e '/^showdots=/s/.*/setopt globdots/' \
|
|
-e '/^savehist=/s//HISTFILE=\~\/.zhistory SAVEHIST=/' \
|
|
-e '/^who=/s//WATCHFMT=/'
|
|
|
|
|
|
exec 0<&9
|
|
|
|
rm /tmp/cz$$.?
|
|
exit
|