Add deltacode script #58

* Add Unix deltacode entrypoint script
* Add Windows deltacode entrypoint script

Signed-off-by: Steven Esser <sesser@nexb.com>

deltacode

@@ -0,0 +1,114 @@
+#!/bin/bash
+#
+# Copyright (c) 2018 nexB Inc. http://www.nexb.com/ - All rights reserved.
+#
+
+# A minimal shell wrapper to the CLI entry point fo DeltaCode
+
+
+###################################################################################
+# from https://raw.githubusercontent.com/mkropat/sh-realpath/58c03982cfd8accbcf0c4426a4adf0f120a8b2bb/realpath.sh
+# realpath emulation for portability on *nix
+# this allow running scancode from aribtrary locations and from symlinks
+#
+# Copyright (c) 2014 Michael Kropat
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+realpath() {
+    canonicalize_path "$(resolve_symlinks "$1")"
+}
+
+resolve_symlinks() {
+    _resolve_symlinks "$1"
+}
+
+_resolve_symlinks() {
+    _assert_no_path_cycles "$@" || return
+
+    local dir_context path
+    path=$(readlink -- "$1")
+    if [ $? -eq 0 ]; then
+        dir_context=$(dirname -- "$1")
+        _resolve_symlinks "$(_prepend_dir_context_if_necessary "$dir_context" "$path")" "$@"
+    else
+        printf '%s\n' "$1"
+    fi
+}
+
+_prepend_dir_context_if_necessary() {
+    if [ "$1" = . ]; then
+        printf '%s\n' "$2"
+    else
+        _prepend_path_if_relative "$1" "$2"
+    fi
+}
+
+_prepend_path_if_relative() {
+    case "$2" in
+        /* ) printf '%s\n' "$2" ;;
+         * ) printf '%s\n' "$1/$2" ;;
+    esac
+}
+
+_assert_no_path_cycles() {
+    local target path
+
+    target=$1
+    shift
+
+    for path in "$@"; do
+        if [ "$path" = "$target" ]; then
+            return 1
+        fi
+    done
+}
+
+canonicalize_path() {
+    if [ -d "$1" ]; then
+        _canonicalize_dir_path "$1"
+    else
+        _canonicalize_file_path "$1"
+    fi
+}
+
+_canonicalize_dir_path() {
+    (cd "$1" 2>/dev/null && pwd -P)
+}
+
+_canonicalize_file_path() {
+    local dir file
+    dir=$(dirname -- "$1")
+    file=$(basename -- "$1")
+    (cd "$dir" 2>/dev/null && printf '%s/%s\n' "$(pwd -P)" "$file")
+}
+
+###################################################################################
+# Now run scancode proper
+
+DELTACODE_BIN="$( realpath "${BASH_SOURCE[0]}" )"
+DELTACODE_ROOT_DIR="$( cd "$( dirname "${DELTACODE_BIN}" )" && pwd )"
+
+DELTACODE_CONFIGURED_PYTHON="$DELTACODE_ROOT_DIR/bin/python"
+if [ ! -f "$DELTACODE_CONFIGURED_PYTHON" ]; then
+    echo "* Configuring DeltaCode for first use..."
+    CONFIGURE_QUIET=1 "$DELTACODE_ROOT_DIR/configure" etc/conf
+fi
+
+"$DELTACODE_ROOT_DIR/bin/deltacode" "$@"

deltacode.bat

@@ -0,0 +1,34 @@
+@echo OFF
+@rem Copyright (c) 2018 nexB Inc. http://www.nexb.com/ - All rights reserved.
+
+@rem  A minimal shell wrapper to the CLI entry point
+
+set DELTACODE_ROOT_DIR=%~dp0
+@rem Use a trailing space in the next line to set the variable to an empty string
+set DELTACODE_CMD_LINE_ARGS= 
+set DELTACODE_CONFIGURED_PYTHON=%DELTACODE_ROOT_DIR%\bin\python.exe
+
+@rem Collect all command line arguments in a variable
+:collectarg
+if ""%1""=="""" goto continue
+call set DELTACODE_CMD_LINE_ARGS=%DELTACODE_CMD_LINE_ARGS% %1
+shift
+goto collectarg
+
+:continue
+
+if not exist "%DELTACODE_CONFIGURED_PYTHON%" goto configure
+goto deltacode
+
+:configure
+echo * Configuring DeltaCode for first use...
+set CONFIGURE_QUIET=1
+call "%DELTACODE_ROOT_DIR%\configure" etc/conf
+if %errorlevel% neq 0 (
+   exit /b %errorlevel%
+)
+
+:deltacode
+"%DELTACODE_ROOT_DIR%\bin\deltacode" %DELTACODE_CMD_LINE_ARGS%
+
+:EOS