Implement context cloning.

The user can copy a given context into the newly
allocated one, rather than switch to a given context.

* cdlog.sh (cdlog.init): Allow the user to input a context
number prefixed by c. In that case, we copy the specified
context file into the $cdlog_dirs file, leaving that
variable alone.

1 files changed, 15 insertions, 3 deletions

diff --git a/cdlog.sh b/cdlog.sh
index c909d65..99c3338 100644
--- a/cdlog.sh
+++ b/cdlog.sh
@@ -84,14 +84,19 @@ cdlog.init()
 
   if [ $# -gt 0 -a $1 != ~/.cdlog.'*'.dirs ] ; then
     printf "These cdlog contexts exist:\n"
-    i=1
+    i=0
     for dir in "$@"; do
-      printf "[%d]: %s\n" $((i++)) "$(date -r "$dir")"
+      printf "[%d]: %s\n" $((++i)) "$(date -r "$dir")"
       sed -e '/^$/d' "$dir"
     done
 
     while true; do
-      printf "Make a selection or press Enter for new context: "
+      if [ $i -eq 1 ] ; then
+        printf "Use 1 to select context, c1 to clone,\n"
+      else
+        printf "Use 1-%s to select context, c1-c%s to clone,\n" $i $i
+      fi
+      printf "or Enter for new blank ontext: "
       read sel
       case $sel in
       ( [1-9] )
@@ -101,6 +106,13 @@ cdlog.init()
           break
         fi
         ;;
+      ( c[1-9] )
+        sel=$(cdlog.get_param ${sel#c} "$@")
+        if [ -n "$sel" ] ; then
+          cp "$sel" "$cdlog_dirs"
+          break
+        fi
+        ;;
       ( "" )
         break
         ;;