Saving a session does not override the previous one

Close #7

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
 ### master
+- saving a new session does not remove the previous one
 
 ### v0.0.1, 2014-08-26
 - started a project

scripts/helpers.sh

@@ -1,3 +1,7 @@
+# constants
+SESSIONS_DIR="$HOME/.tmux/sessions"
+
+# helper functions
 get_tmux_option() {
 	local option="$1"
 	local default_value="$2"
@@ -33,3 +37,12 @@ display_message() {
 	# restores original 'display-time' value
 	tmux set-option -gq display-time "$saved_display_time"
 }
+
+session_path() {
+	local timestamp="$(date +"%Y-%m-%dT%H:%M:%S")"
+	echo "${SESSIONS_DIR}/tmux_session_${timestamp}.txt"
+}
+
+last_session_path() {
+	echo "${SESSIONS_DIR}/last"
+}

scripts/session_restorer.sh

@@ -70,7 +70,7 @@ restore_pane() {
 restore_all_sessions() {
 	while read line; do
 		restore_pane "$line"
-	done < $HOME/.tmux/session
+	done < $(last_session_path)
 	display_message "Restored all Tmux sessions!"
 }
 

scripts/session_saver.sh

@@ -22,8 +22,10 @@ dump() {
 }
 
 save_all_sessions() {
-	mkdir -p $HOME/.tmux
-	dump > $HOME/.tmux/session
+	local session_path="$(session_path)"
+	mkdir -p "$SESSIONS_DIR"
+	dump > $session_path
+	ln -fs "$session_path" "$(last_session_path)"
 	display_message "Saved all Tmux sessions!"
 }