Use PWD when scd --add has no arguments.

Make it consistent with the operation of `scd --unindex`.

Author: pavoljuhas

README.md

@@ -22,7 +22,7 @@ scd [options] [pattern1 pattern2 ...]
 
 <dl><dt>
 -a, --add</dt><dd>
-  add specified directories to the directory index.</dd><dt>
+  add current or specified directories to the directory index.</dd><dt>
 
 --unindex</dt><dd>
   remove current or specified directories from the index.</dd><dt>

bin/scd

@@ -15,7 +15,7 @@ recent or frequently visited directories as found in the directory index.
 Display a selection menu in case of multiple matches.
 
 Options:
-  -a, --add         add specified directories to the directory index.
+  -a, --add         add current or specified directories to the index.
   --unindex         remove current or specified directories from the index.
   -r, --recursive   apply options --add or --unindex recursively.
   --alias=ALIAS     create alias for the current or specified directory and
@@ -197,7 +197,7 @@ _scd_Y19oug_record() {
 }
 
 if [[ -n $opt_add ]]; then
-    m=( ${^argv}(N-/) )
+    m=( ${^${argv:-$PWD}}(N-/) )
     _scd_Y19oug_abspath m ${m}
     _scd_Y19oug_record $m
     if [[ -n $opt_recursive ]]; then
@@ -215,6 +215,7 @@ if [[ -n $opt_unindex ]]; then
     if [[ ! -s $SCD_HISTFILE ]]; then
         $EXIT
     fi
+    argv=( ${argv:-$PWD} )
     # expand existing directories in the argument list
     for i in {1..$#}; do
         if [[ -d ${argv[i]} ]]; then
@@ -239,7 +240,7 @@ if [[ -n $opt_unindex ]]; then
             }
         }
         { print $0 }
-        ' $SCD_HISTFILE ${*:-$PWD} )" || $EXIT $?
+        ' $SCD_HISTFILE $* )" || $EXIT $?
     : >| ${SCD_HISTFILE}
     [[ ${#m} == 0 ]] || print -r -- $m >> ${SCD_HISTFILE}
     $EXIT

ipython/ipy_scd.py

@@ -79,7 +79,7 @@ def do_scd(self, arg):
     Display a selection menu in case of multiple matches.
 
     Options:
-    -a, --add         add specified directories to the directory index.
+    -a, --add         add current or specified directories to the index.
     --unindex         remove current or specified directories from the index.
     -r, --recursive   apply options --add or --unindex recursively.
     --alias=ALIAS     create alias for the current or specified directory and