Improve `irb` restore strategy

Fixes #21

CHANGELOG.md

@@ -5,6 +5,7 @@
   sure vim does not contain `-S` flag
 - enable restoring programs with arguments (e.g. "rails console") and also
   processes that contain program name
+- improve `irb` restore strategy
 
 ### v0.1.0, 2014-08-28
 - refactor checking if saved tmux session exists

scripts/process_restore_helpers.sh

@@ -1,20 +1,3 @@
-# default processes that are restored
-default_proc_list_option="@session-saver-default-processes"
-default_proc_list='vi vim emacs man less more tail top htop irssi irb pry "~rails console"'
-
-# User defined processes that are restored
-#  'false' - nothing is restored
-#  ':all:' - all processes are restored
-#
-# user defined list of programs that are restored:
-#  'my_program foo another_program'
-restore_processes_option="@session-saver-processes"
-restore_processes=""
-
-# Defines part of the user variable. Example usage:
-#   set -g @session-saver-strategy-vim "session"
-restore_process_strategy_option="@session-saver-strategy-"
-
 restore_pane_processes_enabled() {
 	local restore_processes="$(get_tmux_option "$restore_processes_option" "$restore_processes")"
 	if [ "$restore_processes" == "false" ]; then

scripts/session_restorer.sh

@@ -2,6 +2,7 @@
 
 CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
+source "$CURRENT_DIR/variables.sh"
 source "$CURRENT_DIR/helpers.sh"
 source "$CURRENT_DIR/process_restore_helpers.sh"
 source "$CURRENT_DIR/spinner_helpers.sh"

scripts/variables.sh

@@ -0,0 +1,23 @@
+# key bindings
+default_save_key="M-s"
+save_option="@session-saver-save"
+
+default_restore_key="M-r"
+restore_option="@session-saver-restore"
+
+# default processes that are restored
+default_proc_list_option="@session-saver-default-processes"
+default_proc_list='vi vim emacs man less more tail top htop irssi irb pry "~rails console"'
+
+# User defined processes that are restored
+#  'false' - nothing is restored
+#  ':all:' - all processes are restored
+#
+# user defined list of programs that are restored:
+#  'my_program foo another_program'
+restore_processes_option="@session-saver-processes"
+restore_processes=""
+
+# Defines part of the user variable. Example usage:
+#   set -g @session-saver-strategy-vim "session"
+restore_process_strategy_option="@session-saver-strategy-"

session_saver.tmux

@@ -2,14 +2,9 @@
 
 CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
+source "$CURRENT_DIR/scripts/variables.sh"
 source "$CURRENT_DIR/scripts/helpers.sh"
 
-default_save_key="M-s"
-save_option="@session-saver-save"
-
-default_restore_key="M-r"
-restore_option="@session-saver-restore"
-
 set_save_bindings() {
 	local key_bindings=$(get_tmux_option "$save_option" "$default_save_key")
 	local key
@@ -26,8 +21,13 @@ set_restore_bindings() {
 	done
 }
 
+set_default_strategies() {
+	tmux set-option -g "${restore_process_strategy_option}irb" "default_strategy"
+}
+
 main() {
 	set_save_bindings
 	set_restore_bindings
+	set_default_strategies
 }
 main

strategies/irb_default_strategy.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+# "irb default strategy"
+#
+# Example irb process with junk variables:
+#   irb RBENV_VERSION=1.9.3-p429 GREP_COLOR=34;47 TERM_PROGRAM=Apple_Terminal
+#
+# When executed, the above will fail. This strategy handles that.
+
+ORIGINAL_COMMAND="$1"
+DIRECTORY="$2"
+
+original_command_wo_junk_vars() {
+	echo "$ORIGINAL_COMMAND" |
+		sed 's/RBENV_VERSION[^ ]*//' |
+		sed 's/GREP_COLOR[^ ]*//'    |
+		sed 's/TERM_PROGRAM[^ ]*//'
+}
+
+main() {
+	echo "$(original_command_wo_junk_vars)"
+}
+main