diff options
Diffstat (limited to 'Functions/Newuser/zsh-newuser-install')
| -rw-r--r-- | Functions/Newuser/zsh-newuser-install | 135 |
1 files changed, 103 insertions, 32 deletions
diff --git a/Functions/Newuser/zsh-newuser-install b/Functions/Newuser/zsh-newuser-install index 6304a8dd4..6e0e30c65 100644 --- a/Functions/Newuser/zsh-newuser-install +++ b/Functions/Newuser/zsh-newuser-install @@ -9,6 +9,16 @@ setopt extendedglob nonomatch warncreateglobal # How the function will be referred to. local myname=zsh-newuser-install + +# Quick test not requiring any setting up. +# Don't run if we're root. (These variables are provided by the shell.) +if (( EUID == 0 || UID == 0 )); then + if [[ $1 = -f ]]; then + print -r "$myname: won't run as root. Read the manual." >&2 + fi + return 1 +fi + # The directory in which to look for and save .zshrc. local zd=${ZDOTDIR:-$HOME} # The same directory in a user friendly form, i.e. with ~ replacement. @@ -32,6 +42,8 @@ local -A install_state local -A parsed_parameters parsed_options parsed_bindings parsed_keymaps # Corresponding state in a user-readable form. local -A state_parameters state_options state_bindings state_keymaps +# Indicate whether an option defaults on or off. +local -A default_options # Lines read in from between $startline and $endline which were # not understood. These are retained but moved out of that section # with a message. @@ -52,6 +64,8 @@ local -a completion_lines local -a reply match mbegin mend # Key read from user, used all over the place. local key +# For default replies from read +local REPLY integer save lines_found install_state[history]=Recommended @@ -68,6 +82,17 @@ else zdmsg=$zd fi +# Don't run if we can't write to $zd. +# Assume this is a temporary condition and exit silently--- +# if this really is a new user this probably isn't the right +# time for screeds of explanation. +if [[ ! -w $zd ]]; then + if [[ $1 = -f ]]; then + print -r "$myname: can't write to $zdmsg." >&2 + fi + return 1 +fi + # Don't run unless we can talk to the user. if [[ ! -t 0 || ! -t 1 ]]; then if [[ $1 = -f ]]; then @@ -93,7 +118,6 @@ Use the argument -f if you want to force the function to be run again." >&2 fi fi - # start of try block for tidy-up in always block { @@ -204,6 +228,9 @@ which will be retained but not edited." # ... # -o option_name default=on|off description # ... +# Options on by default should begin !, e.g. !nomatch. They +# will still appear under the base option but with an indication that +# the default is on. The default applies to the base option. Hack, sorry. # -b bindkey_string default_value description # ... # -B default_keymap=emacs|vi|none description @@ -223,7 +250,7 @@ which will be retained but not edited." # This operation transfers some subset of settings from the parsed_* # and state_* variables to the *_lines variables for editing. __zni_apply_defaults() { - local un + local un suf # Reset the lines to be edited. state_lines=() @@ -258,6 +285,12 @@ __zni_apply_defaults() { shift while [[ $# -gt 0 && $1 != -* ]]; do # skip default if there was a setting + if [[ $1 != ${1##!} ]]; then + argv[1]=${1##!} + default_options[$1]=on + else + default_options[$1]=off + fi if [[ -z $state_options[$1] ]]; then parsed_options[$1]=$2 if [[ -n $2 ]]; then @@ -265,16 +298,22 @@ __zni_apply_defaults() { else state_options[$1]="no value set" fi - elif [[ $state_parameters[$1] = saved ]]; then + elif [[ $state_options[$1] = saved ]]; then (( lines_read++ )) fi if [[ $parsed_options[$1] = on ]]; then un= + suf= + elif [[ -z $parsed_options[$1] && $default_options[$1] = on ]] + then + un= + suf=", default on" else # display as unsetopt even if no value to save yet un=un + suf= fi - state_lines+=($state_options[$1]) + state_lines+=("$state_options[$1]$suf") display_lines+=("$3") output_lines+=("${un}setopt $1") @@ -363,8 +402,8 @@ __zni_display_and_edit() { # Output each setting with a description and state. for (( i = 1; i <= ${#output_lines}; i++ )); do - default=$states[$i] - if [[ $default = ("no value set"|"not to be saved") ]]; then + default=${states[$i]%%,*} + if [[ $default = ("no value set"|"not to be saved"*) ]]; then ldisp="# $outputs[$i]" else ldisp=$outputs[$i] @@ -391,15 +430,31 @@ $ldisp${(l.$COLUMNS-${#ldisp}-${#rdisp}-1.):-}$rdisp" (( i = key )) case $outputs[$i] in ((#b)(|un)setopt' '(*)) + # Try to locate the appropriate section in the manual. + # I personally have no wish whatsoever to make this + # use sed or awk. Suggestions welcome. + if [[ -s $tmpfile-man-options ]]; then + perl -ne 's/^(\s*)([A-Z]+)_?([A-Z]*)_?([A-Z]*)(\s*\(.+\)|\s*\<.+\>)*\s*$/\L$1$2$3$4\n/ and "'$match[2]'" =~ /^(|no)\L$2$3$4$/ and $print = 1 and next; next unless $print; exit if /^\s*$/; print; ' <$tmpfile-man-options >$tmpfile-man 2>/dev/null + else + rm -f $tmpfile-man + fi while true; do clear - print "Option $match[2]: $displays[$i] -The option is currently ${match[1]:+un}set. + if [[ -s $tmpfile-man ]]; then + read <$tmpfile-man + print "Option $match[2]:" + cat $tmpfile-man + print + else + print "Option $match[2]: $displays[$i]" + fi + print "The option $match[2] is currently ${match[1]:+un}set. Type: - (s) to set it - (u) to unset it - (n) not to set or unset it (use shell default) - (k) to keep the current setting:" + (s) to set it (turn it on) + (u) to unset it (turn it off) + (n) neither to set or unset it (use shell default: \ +$default_options[$match[2]]) + (k) or (q) to keep the current setting:" read -k key$shortprompt print @@ -410,7 +465,7 @@ Type: states[$i]="set but not saved" ;; - (s) + (u) (( changes++ )) outputs[$i]="unsetopt $match[2]" states[$i]="set but not saved" @@ -422,7 +477,7 @@ Type: states[$i]="no value set" ;; - (k) + ([kq]) ;; (*) @@ -434,8 +489,19 @@ Type: ;; ((#b)([^=]##)=(*)) - print -r "Variable ${match[1]}: $displays[$i] -Edit a value. If it is left blank, nothing will be saved:" + if [[ -s $tmpfile-man-param ]]; then + perl -ne 's/^(\s*)([A-Z]+)(\s*\<.+\>)*\s*$/$1$2\n/ and "$2" eq "'$match[1]'" and $print = 1; next unless $print; exit if /^\s*$/; print;' <$tmpfile-man-param >$tmpfile-man 2>/dev/null + else + rm -f $tmpfile-man + fi + if [[ -s $tmpfile-man ]]; then + print -n Variable + cat $tmpfile-man + print + else + print -r "Variable ${match[1]}: $displays[$i]" + fi + print -r "Edit a value. If it is left blank, nothing will be saved:" edval=$match[2] if vared -p "$match[1]> " -h edval; then # check this assignment doesn't produce multiple words @@ -478,7 +544,7 @@ Type: (v) for Vi keymap (n) not to set a keymap (allow shell to choose) (k) to keep the current setting, " - if [[ $state_lines[$i] = ("no value set"|"not to be saved") ]] + if [[ ${state_lines[$i]%%,*} = ("no value set"|"not to be saved") ]] then print -r "(n):" elif [[ $output_lines[$i] = *-v ]]; then @@ -537,10 +603,10 @@ Type: # Also save any lines suitably marked to parsed_* and state_* # by rerunning __zni_parse_lines on each such line. for (( i = 1; i <= ${#output_lines}; i++ )); do - if [[ $state_lines[$i] = \ + if [[ ${state_lines[$i]%%,*} = \ ("set but not saved"|"not to be saved"|"not yet saved") ]] then - __zni_parse_lines $state_lines[$i] $output_lines[$i] + __zni_parse_lines ${state_lines[$i]%%,*} $output_lines[$i] fi done @@ -642,7 +708,7 @@ __zni_save() { done # Construct lines of options to turn off, keeping them short. - optline="unsetopt " + optline="unsetopt" for (( i = 1; i <= ${#off_opts}; i++ )); do newline="$optline $off_opts[$i]" if [[ ${#newline} -ge 72 ]]; then @@ -715,9 +781,9 @@ ${(F)unparsed} __zni_history_config() { __zni_apply_defaults -p \ - HISTORY 1000 "Number of lines of history kept within shell" \ - HISTFILE $zdmsg/.histfile "File where history is saved" \ - SAVEHIST 1000 "Number of lines of history to save to \$HISTFILE" + HISTSIZE 1000 "Number of lines of history kept within the shell." \ + HISTFILE $zdmsg/.histfile "File where history is saved." \ + SAVEHIST 1000 "Number of lines of history to save to \$HISTFILE." if __zni_display_and_edit "History configuration"; then install_state[history]="Unsaved changes" @@ -822,12 +888,12 @@ __zni_options_config() { # This is deliberately just a tiny selection. # Feel free to extend it, but if you do, consider using __zni_submenu. # The "no" prefix is used to indicate options on by default. - __zni_apply_defaults -o autocd '' "Change directory given just path" \ - extendedglob '' "Use additional pattern matching features" \ - appendhistory '' "Append new history lines instead of overwriting" \ - nonomatch '' "Pass unmatched patterns to command instead of error" \ - nobeep '' "Don't beep on errors" \ - notify '' "Immediately report changes in background job status" + __zni_apply_defaults -o autocd '' "Change directory given just path." \ + extendedglob '' "Use additional pattern matching features." \ + appendhistory '' "Append new history lines instead of overwriting." \ + '!nomatch' '' "Unmatched patterns cause an error." \ + '!beep' '' "Beep on errors." \ + notify '' "Immediately report changes in background job status." if __zni_display_and_edit "Common shell options" \ "The following are some of the shell options that are most often used." \ @@ -876,7 +942,7 @@ You can: That will prevent this function being run again." fi print -r " -(1) Continue to main menu. +(1) Continue to the main menu. " read -k key$longprompt @@ -907,6 +973,11 @@ The function will be run again next time. To prevent this, execute: esac fi + +print -r "Attempting to extract information from manual pages..." +(man zshoptions | col -b > $tmpfile-man-options; + man zshparam | col -b > $tmpfile-man-param) 2>/dev/null + while true; do clear print -nr "Please pick one of the following options: @@ -927,8 +998,8 @@ ${install_state[completion]:+ ($install_state[completion].)} (3) Configure how keys behave when editing command lines.\ ${install_state[bindkey]:+ ($install_state[bindkey].)} -(4) Pick some of the more common shell options. These are simple on - or off switches controlling the shell's features. \ +(4) Pick some of the more common shell options. These are simple \"on\" + or \"off\" switches controlling the shell's features. \ ${install_state[options]:+ ($install_state[options].)} " print -nr "(0) Exit, " |