Restore documentation section explaining talks.

[techtalk-pse.git] / examples / simple / functions

diff --git a/examples/simple/functions b/examples/simple/functions
index 903777a..c8df6e7 100644 (file)
--- a/examples/simple/functions
+++ b/examples/simple/functions
@@ -1,4 +1,33 @@
+# -*- shell-script -*-
+
+# Place any local environment variables required in 'local'.
+if [ -f local ]; then source local; fi
+
 export PS1="$ "
-export HISTFILE=/tmp/history
 
-TERMINAL="gnome-terminal --window --geometry=+100+100 --hide-menubar --title='Tech Talk PSE Simple example' -e '/bin/bash --norc'"
+export HISTFILE=$talkdir/history
+
+rm -f $HISTFILE
+touch $HISTFILE
+
+add_history ()
+{
+    echo "$@" >> $HISTFILE
+}
+
+terminal ()
+{
+    # Make $HISTFILE unwritable so the shell won't update it
+    # when it exits.
+    chmod -w $HISTFILE
+
+    # Run gnome-terminal.
+    exec \
+        gnome-terminal \
+        --window \
+        --geometry=+100+100 \
+        --hide-menubar \
+        --disable-factory \
+        -e '/bin/bash --norc' \
+        "$@"
+}