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| 1 | +#!/bin/bash |
| 2 | +# |
| 3 | +# Copyright (c) 2018 nexB Inc. http://www.nexb.com/ - All rights reserved. |
| 4 | +# |
| 5 | + |
| 6 | +# A minimal shell wrapper to the CLI entry point fo DeltaCode |
| 7 | + |
| 8 | + |
| 9 | +################################################################################### |
| 10 | +# from https://raw.githubusercontent.com/mkropat/sh-realpath/58c03982cfd8accbcf0c4426a4adf0f120a8b2bb/realpath.sh |
| 11 | +# realpath emulation for portability on *nix |
| 12 | +# this allow running scancode from aribtrary locations and from symlinks |
| 13 | +# |
| 14 | +# Copyright (c) 2014 Michael Kropat |
| 15 | +# |
| 16 | +# Permission is hereby granted, free of charge, to any person obtaining a copy |
| 17 | +# of this software and associated documentation files (the "Software"), to deal |
| 18 | +# in the Software without restriction, including without limitation the rights |
| 19 | +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 20 | +# copies of the Software, and to permit persons to whom the Software is |
| 21 | +# furnished to do so, subject to the following conditions: |
| 22 | +# |
| 23 | +# The above copyright notice and this permission notice shall be included in |
| 24 | +# all copies or substantial portions of the Software. |
| 25 | +# |
| 26 | +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 27 | +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 28 | +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 29 | +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 30 | +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 31 | +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 32 | +# THE SOFTWARE. |
| 33 | + |
| 34 | +realpath() { |
| 35 | + canonicalize_path "$(resolve_symlinks "$1")" |
| 36 | +} |
| 37 | + |
| 38 | +resolve_symlinks() { |
| 39 | + _resolve_symlinks "$1" |
| 40 | +} |
| 41 | + |
| 42 | +_resolve_symlinks() { |
| 43 | + _assert_no_path_cycles "$@" || return |
| 44 | + |
| 45 | + local dir_context path |
| 46 | + path=$(readlink -- "$1") |
| 47 | + if [ $? -eq 0 ]; then |
| 48 | + dir_context=$(dirname -- "$1") |
| 49 | + _resolve_symlinks "$(_prepend_dir_context_if_necessary "$dir_context" "$path")" "$@" |
| 50 | + else |
| 51 | + printf '%s\n' "$1" |
| 52 | + fi |
| 53 | +} |
| 54 | + |
| 55 | +_prepend_dir_context_if_necessary() { |
| 56 | + if [ "$1" = . ]; then |
| 57 | + printf '%s\n' "$2" |
| 58 | + else |
| 59 | + _prepend_path_if_relative "$1" "$2" |
| 60 | + fi |
| 61 | +} |
| 62 | + |
| 63 | +_prepend_path_if_relative() { |
| 64 | + case "$2" in |
| 65 | + /* ) printf '%s\n' "$2" ;; |
| 66 | + * ) printf '%s\n' "$1/$2" ;; |
| 67 | + esac |
| 68 | +} |
| 69 | + |
| 70 | +_assert_no_path_cycles() { |
| 71 | + local target path |
| 72 | + |
| 73 | + target=$1 |
| 74 | + shift |
| 75 | + |
| 76 | + for path in "$@"; do |
| 77 | + if [ "$path" = "$target" ]; then |
| 78 | + return 1 |
| 79 | + fi |
| 80 | + done |
| 81 | +} |
| 82 | + |
| 83 | +canonicalize_path() { |
| 84 | + if [ -d "$1" ]; then |
| 85 | + _canonicalize_dir_path "$1" |
| 86 | + else |
| 87 | + _canonicalize_file_path "$1" |
| 88 | + fi |
| 89 | +} |
| 90 | + |
| 91 | +_canonicalize_dir_path() { |
| 92 | + (cd "$1" 2>/dev/null && pwd -P) |
| 93 | +} |
| 94 | + |
| 95 | +_canonicalize_file_path() { |
| 96 | + local dir file |
| 97 | + dir=$(dirname -- "$1") |
| 98 | + file=$(basename -- "$1") |
| 99 | + (cd "$dir" 2>/dev/null && printf '%s/%s\n' "$(pwd -P)" "$file") |
| 100 | +} |
| 101 | + |
| 102 | +################################################################################### |
| 103 | +# Now run scancode proper |
| 104 | + |
| 105 | +DELTACODE_BIN="$( realpath "${BASH_SOURCE[0]}" )" |
| 106 | +DELTACODE_ROOT_DIR="$( cd "$( dirname "${DELTACODE_BIN}" )" && pwd )" |
| 107 | + |
| 108 | +DELTACODE_CONFIGURED_PYTHON="$DELTACODE_ROOT_DIR/bin/python" |
| 109 | +if [ ! -f "$DELTACODE_CONFIGURED_PYTHON" ]; then |
| 110 | + echo "* Configuring DeltaCode for first use..." |
| 111 | + CONFIGURE_QUIET=1 "$DELTACODE_ROOT_DIR/configure" etc/conf |
| 112 | +fi |
| 113 | + |
| 114 | +"$DELTACODE_ROOT_DIR/bin/deltacode" "$@" |
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