gsu: Remove check on bash version.

[gsu.git] / funcs / gsu

diff --git a/funcs/gsu b/funcs/gsu
index df25bf63c429ca9873024a2dd4e8283be161143c..e7a49feaf2a084def529e9ba95512922d050437a 100644 (file)
--- a/funcs/gsu
+++ b/funcs/gsu
@@ -1,6 +1,6 @@
 #!/bin/bash
 # gsu -- the global subcommand utility
-# (C) 2006-2009 Andre Noll
+# (C) 2006-2010 Andre Noll
 
 _gsu_init_errors()
 {
@@ -8,14 +8,13 @@ _gsu_init_errors()
 GSU_SUCCESS                    success
 E_GSU_BAD_COMMAND              invalid command
 E_GSU_NOT_A_NUMBER             not a number
-E_GSU_SOURCE                   error in config file
-E_GSU_CONFIG                   bad/missing config file option
 E_GSU_BAD_CONFIG_VAR           invalid config variable
 E_GSU_NEED_VALUE               value required but not given
 E_GSU_BAD_BOOL                 bad value for boolian option
 E_GSU_BAD_OPTION_TYPE          invalid option type
 E_GSU_BAD_ARG_COUNT            invalid number of arguments
-E_NO_DEFAULT                   missing default value
+E_GSU_EDITOR                   failed to execute editor
+E_GSU_MKDIR                    failed to create directory
 $gsu_errors
 "
        local a b i=0
@@ -171,13 +170,27 @@ export -f _gsu_print_available_commands
 export gsu_prefs_txt="
 Print the current preferences.
 
-Usage: prefs
+Usage: prefs [-e]
 
-Print out a list of all cmt config variables, together with their current value
-and the default value."
+If -e is given, the config file is opened with the default editor.  Without
+options, the command prints out a list of all cmt config variables, together
+with their current value and the default value."
 _com_prefs()
 {
-       local i
+       local i conf="${gsu_config_file:=$HOME/.$gsu_name.rc}"
+
+       if [[ "$1" = "-e" ]]; then
+               ret=-$E_GSU_MKDIR
+               result="${conf%/*}"
+               mkdir -p "$result"
+               [[ $? -ne 0 ]] && return
+               ret=-$E_GSU_EDITOR
+               result="${EDITOR:-vi}"
+               "$result" "$conf"
+               [[ $? -ne 0 ]] && return
+               ret=$GSU_SUCCESS
+               return
+       fi
 
        for ((i=0; i < ${#gsu_options[@]}; i++)); do
                local name= option_type= default_value= required=
@@ -387,17 +400,6 @@ export -f _gsu_check_options
 gsu()
 {
        local i
-
-       gsu_is_a_number "${BASH_VERSINFO[0]}"
-       if [[ $ret -lt 0 ]]; then
-               gsu_msg "fatal: failed to determine bash version"
-               exit 1
-       fi
-
-       if [[ "${BASH_VERSINFO[0]}" -lt 4 ]]; then
-               gsu_msg "fatal: This script requires at least bash 4.0"
-               exit 1
-       fi
        _gsu_self="$(basename $0)"
        gsu_name="${gsu_name:=$_gsu_self}"
        gsu_config_var_prefix="${gsu_config_var_prefix:=$gsu_name}"
@@ -432,7 +434,7 @@ gsu()
        for i in $gsu_cmds; do
                if test "$arg" = "$i"; then
                        com_$arg "$@"
-                       if test $ret -lt 0; then
+                       if [[ "$ret" -lt 0 ]]; then
                                gsu_err_msg
                                exit 1
                        fi