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scancode
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scancode
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#!/bin/bash
#
# Copyright (c) 2017 nexB Inc. http://www.nexb.com/ - All rights reserved.
#
# A minimal shell wrapper to the CLI entry point fo ScanCode
###################################################################################
# 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
SCANCODE_BIN="$( realpath "${BASH_SOURCE[0]}" )"
SCANCODE_ROOT_DIR="$( cd "$( dirname "${SCANCODE_BIN}" )" && pwd )"
SCANCODE_CONFIG_DIR="etc/conf"
GIT_STATUS=$(git -C "$SCANCODE_ROOT_DIR" status --porcelain 2> /dev/null)
if [ $? -eq 0 ]; then
# This is a Git working tree, check whether it is clean.
if [ -z "$GIT_STATUS" ]; then
# This is a clean working tree, check whether configure has been run
# before for this commit.
GIT_COMMIT_CONFIGURED=$(cat "$SCANCODE_ROOT_DIR/SCANCODE_GIT_MODE" 2> /dev/null)
GIT_COMMIT_HEAD=$(git -C "$SCANCODE_ROOT_DIR" rev-parse HEAD)
if [ "$GIT_COMMIT_CONFIGURED" != "$GIT_COMMIT_HEAD" ]; then
echo "* (Re-)Configuring ScanCode because Git commits have changed..."
CONFIGURE_QUIET=1 $SCANCODE_ROOT_DIR/configure $SCANCODE_CONFIG_DIR
fi
echo $GIT_COMMIT_HEAD > "$SCANCODE_ROOT_DIR/SCANCODE_GIT_MODE"
else
echo "* (Re-)Configuring ScanCode because Git working tree is not clean..."
CONFIGURE_QUIET=1 $SCANCODE_ROOT_DIR/configure $SCANCODE_CONFIG_DIR
fi
else
rm -f "$SCANCODE_ROOT_DIR/SCANCODE_GIT_MODE"
fi
SCANCODE_CONFIGURED_PYTHON=$SCANCODE_ROOT_DIR/bin/python
if [ ! -f "$SCANCODE_CONFIGURED_PYTHON" ]; then
echo "* Configuring ScanCode for first use..."
CONFIGURE_QUIET=1 $SCANCODE_ROOT_DIR/configure $SCANCODE_CONFIG_DIR
fi
$SCANCODE_ROOT_DIR/bin/scancode "$@"