#!/bin/bash

set -e

# Environment check

[ -z "$COVERITY_TOKEN" ] && echo "Need to set a coverity token" && exit 1

SOURCE_DIR=${SOURCE_DIR:-$( cd "$( dirname "${BASH_SOURCE[0]}" )" && dirname $( pwd ) )}

BUILD_DIR=$(pwd)

case $(uname -m) in

	i?86)				BITS=32 ;;

	amd64|x86_64)	BITS=64 ;;

esac

SCAN_TOOL=https://scan.coverity.com/download/cxx/linux${BITS}

TOOL_BASE=$(pwd)/_coverity-scan

# Install coverity tools

if [ ! -d "$TOOL_BASE" ]; then

	echo "Downloading coverity..."

	mkdir -p "$TOOL_BASE"

	pushd "$TOOL_BASE"

	wget -O coverity_tool.tgz $SCAN_TOOL \

		--post-data "project=libgit2&token=$COVERITY_TOKEN"

	tar xzf coverity_tool.tgz

	popd

	TOOL_DIR=$(find "$TOOL_BASE" -type d -name 'cov-analysis*')

	ln -s "$TOOL_DIR" "$TOOL_BASE"/cov-analysis

fi

cp "${SOURCE_DIR}/script/user_nodefs.h" "$TOOL_BASE"/cov-analysis/config/user_nodefs.h

COV_BUILD="$TOOL_BASE/cov-analysis/bin/cov-build"

# Configure and build

cmake ${SOURCE_DIR}

COVERITY_UNSUPPORTED=1 \

	$COV_BUILD --dir cov-int \

	cmake --build .

# Upload results

tar czf libgit2.tgz cov-int

SHA=$(cd ${SOURCE_DIR} && git rev-parse --short HEAD)

HTML="$(curl \

	--silent \

	--write-out "\n%{http_code}" \

	--form token="$COVERITY_TOKEN" \

	--form email=libgit2@gmail.com \

	--form file=@libgit2.tgz \

	--form version="$SHA" \

	--form description="libgit2 build" \

	https://scan.coverity.com/builds?project=libgit2)"

# Body is everything up to the last line

BODY="$(echo "$HTML" | head -n-1)"

# Status code is the last line

STATUS_CODE="$(echo "$HTML" | tail -n1)"

echo "${BODY}"

if [ "${STATUS_CODE}" != "200" -a "${STATUS_CODE}" != "201" ]; then

	echo "Received error code ${STATUS_CODE} from Coverity"

	exit 1

fi