add git secret cat filename [filename2] feature

src/commands/git_secret_cat.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+
+function cat {
+  local homedir=''
+  local passphrase=''
+  local force=0
+
+  OPTIND=1
+
+  while getopts 'hfd:p:' opt; do
+    case "$opt" in
+      h) _show_manual_for 'cat';;
+
+      f) force=1;;
+
+      p) passphrase=$OPTARG;;
+
+      d) homedir=$OPTARG;;
+
+      *) _invalid_option_for 'cat';;
+    esac
+  done
+
+  shift $((OPTIND-1))
+  [ "$1" = '--' ] && shift
+
+  _user_required
+
+  # Command logic:
+
+  local path_mappings
+  path_mappings=$(_get_secrets_dir_paths_mapping)
+
+  local counter=0 
+  for line in "$@"
+  do
+    local filename
+    local path
+    echo $line
+    filename=$(_get_record_filename "$line")
+    path=$(_append_root_path "$filename")
+
+    # The parameters are: filename, write-to-file, force, homedir, passphrase
+    _decrypt "$path" "0" "$force" "$homedir" "$passphrase"
+
+    counter=$((counter+1))
+  done
+
+  #echo "done. all $counter files are revealed."
+}

src/commands/git_secret_usage.sh

@@ -19,7 +19,7 @@ function usage {
   # to the old dynamic-loading version of this code.
   # thanks to @antmak it is now fixed, see:
   # https://github.com/sobolevn/git-secret/issues/47
-  local commands="add|changes|clean|hide|init|killperson|list|remove|reveal|tell|usage|whoknows"
+  local commands="add|cat|changes|clean|hide|init|killperson|list|remove|reveal|tell|usage|whoknows"
 
   echo "usage: git secret [$commands]"
 }