Configure GitHub Actions for snapshot builds

.github/workflows/build.yml

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+name: Linux build
+
+on:
+  push:
+    branches: [ binutils-2_41-mintelf ]
+  pull_request:
+    branches: [ binutils-2_41-mintelf ]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        cross_tool: [ "m68k-atari-mintelf" ]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install SSH keys
+        if: ${{ github.event_name == 'push' }}
+        env:
+          SSH_ID: ${{ secrets.SSH_ID }}
+        run: ./.scripts/install_ssh_id.sh
+      - name: Setup environment
+        env:
+          PROJECT_VERSION: "2.41"
+          CROSS_TOOL: ${{ matrix.cross_tool }}
+        run: ./.scripts/setup_env.sh
+      - name: Install packages
+        run: |
+          sudo apt-get update
+          sudo apt-get install libzstd-dev liblzma-dev zlib1g-dev
+      - name: build
+        run: ./.scripts/build.sh
+      - name: deploy
+        if: ${{ github.event_name == 'push' }}
+        env:
+          COMMITER_NAME: ${{ github.event.commits[0].author.name }}
+          COMMITER_EMAIL: ${{ github.event.commits[0].author.email }}
+        run: ./.scripts/deploy.sh

.scripts/build.sh

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+#!/bin/bash -eux
+# -e: Exit immediately if a command exits with a non-zero status.
+# -u: Treat unset variables as an error when substituting.
+# -x: Display expanded script commands
+
+unset CDPATH
+unset LANG LANGUAGE LC_ALL LC_CTYPE LC_TIME LC_NUMERIC LC_COLLATE LC_MONETARY LC_MESSAGES
+
+VERSIONPATCH=-20230911
+REVISION="GNU Binutils for MiNT ${VERSIONPATCH#-}"
+
+TARGET=${CROSS_TOOL:-m68k-atari-mintelf}
+if test "$TARGET" = m68k-atari-mintelf; then
+REVISION="GNU Binutils for MiNT ELF ${VERSIONPATCH#-}"
+fi
+PREFIX=/usr
+
+TAR=${TAR-tar}
+TAR_OPTS=${TAR_OPTS---owner=0 --group=0}
+LN_S=ln
+BUILD_EXEEXT=
+MAKE=make
+
+here=`pwd`
+srcdir=`pwd`
+
+host=linux64
+if test -d /usr/lib64 -a $host = linux64; then
+	BUILD_LIBDIR=${PREFIX}/lib64
+else
+	BUILD_LIBDIR=${PREFIX}/lib
+fi
+
+enable_plugins=--disable-plugins
+enable_lto=--disable-lto
+
+case "${TARGET}" in
+    *-*-*elf* | *-*-linux* | *-*-darwin*)
+    	enable_lto=--enable-lto
+		enable_plugins=--enable-plugins
+		;;
+esac
+
+MINT_BUILD_DIR=$here/build
+
+rm -rf "$MINT_BUILD_DIR"
+mkdir -p "$MINT_BUILD_DIR"
+
+cd "$MINT_BUILD_DIR"
+
+# Note: gdb is explictly disabled here, because it is not needed for the cross-compiler
+../configure \
+	--target="${TARGET}" \
+	--prefix="${PREFIX}" \
+	--libdir="$BUILD_LIBDIR" \
+	--bindir="${PREFIX}/bin" \
+	--libexecdir='${libdir}' \
+	--with-pkgversion="$REVISION" \
+	--with-bugurl='https://github.com/freemint/m68k-atari-mint-binutils-gdb/issues' \
+	--with-gcc --with-gnu-as --with-gnu-ld \
+	--disable-gdb --disable-gdbserver --disable-sim \
+	--disable-werror \
+	--disable-threads \
+	--enable-new-dtags \
+	--enable-relro \
+	--enable-default-hash-style=both \
+	$enable_lto \
+	$enable_plugins \
+	--disable-nls \
+	--with-system-zlib \
+	--with-system-readline \
+	--disable-bracketed-paste-default \
+	--with-sysroot="${PREFIX}/${TARGET}/sys-root"
+
+${MAKE} || exit 1
+
+# INSTALL_DIR is set in setup_env.sh
+make DESTDIR="$INSTALL_DIR" install-strip >/dev/null || exit 1
+
+mkdir -p "${INSTALL_DIR}/${PREFIX}/${TARGET}/bin"
+
+cd "${INSTALL_DIR}/${PREFIX}/${TARGET}/bin"
+
+for i in addr2line ar as nm ld ld.bfd objcopy objdump ranlib strip readelf dlltool dllwrap size strings; do
+	if test -x ../../bin/${TARGET}-$i; then
+		rm -f ${i} ${i}${BUILD_EXEEXT}
+		$LN_S ../../bin/${TARGET}-$i${BUILD_EXEEXT} $i
+	fi
+done
+
+cd "${INSTALL_DIR}/${PREFIX}/bin"
+
+rm -f ${TARGET}-ld ${TARGET}-ld${BUILD_EXEEXT}
+$LN_S ${TARGET}-ld.bfd${BUILD_EXEEXT} ${TARGET}-ld${BUILD_EXEEXT}
+cd "${INSTALL_DIR}" || exit 1
+
+rm -f ${BUILD_LIBDIR#/}/libiberty.a
+
+# do not overwrite the system files
+rm -rf ${PREFIX#/}/share/info
+rm -rf ${PREFIX#/}/share/man
+rm -f ${BUILD_LIBDIR#/}/bfd-plugins/libdep.so
+rm -f ${BUILD_LIBDIR#/}/bfd-plugins/*dep.dll
+rmdir ${BUILD_LIBDIR#/}/bfd-plugins 2>/dev/null || :
+rmdir ${BUILD_LIBDIR#/} 2>/dev/null || :
+rm -f ${PREFIX#/}/${TARGET}/lib/ldscripts/m68kmintelf.{xbn,xe,xn,xr,xu}
+
+# remove gdb if it was build; we don't need it for the cross compiler
+rm -f ${PREFIX#/}/bin/${TARGET}-gdb*
+rm -rf "${PREFIX#/}/share/gdb"
+rmdir "${PREFIX#/}/share" || :
+rm -rf "${PREFIX#/}/include/gdb"
+rm -rf "${PREFIX#/}/include/sim"
+rmdir "${PREFIX#/}/include" || :
+
+# archive is created in deploy.sh
+# toolsuffix=${TARGET##*-}
+# TARNAME=${PROJECT_NAME}-${PROJECT_VERSION}-${toolsuffix}
+
+# ${TAR} ${TAR_OPTS} -jcf ${DEPLOY_DIR}/${TARNAME}-ubuntu-20.04.tar.bz2 ${PREFIX#/}

.scripts/deploy.sh

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+#!/bin/sh -x
+
+[email protected]
+UPLOAD_DIR=$SERVER:/home/www/snapshots
+
+if [ -z "${DEPLOY_ARCHIVE+x}" ]
+then
+	# zip is default
+	DEPLOY_ARCHIVE="zip"
+fi
+
+toolsuffix=${CROSS_TOOL##*-}
+
+ARCHIVE_NAME="${PROJECT_NAME}-${PROJECT_VERSION}-${SHORT_ID}-${toolsuffix}.${DEPLOY_ARCHIVE}"
+ARCHIVE_PATH="${DEPLOY_DIR}/${ARCHIVE_NAME}"
+
+mkdir -p "${DEPLOY_DIR}"
+
+if [ "${DEPLOY_ARCHIVE}" = "tar.bz2" ]
+then
+	cd ${INSTALL_DIR} && tar cjf ${ARCHIVE_PATH} *
+elif [ "${DEPLOY_ARCHIVE}" = "tar.xz" ]
+then
+	cd ${INSTALL_DIR} && tar cJf ${ARCHIVE_PATH} *
+elif [ "${DEPLOY_ARCHIVE}" = "tar.gz" ]
+then
+	cd ${INSTALL_DIR} && tar czf ${ARCHIVE_PATH} *
+else
+	cd $(dirname ${INSTALL_DIR}) && zip -r -9 ${ARCHIVE_PATH} $(basename ${INSTALL_DIR})
+fi
+
+cd -
+
+
+eval "$(ssh-agent -s)"
+
+PROJECT_DIR="$PROJECT_NAME"
+case $PROJECT_DIR in
+	m68k-atari-mint-gcc) PROJECT_DIR=gcc ;;
+	m68k-atari-mint-binutils-gdb) PROJECT_DIR=binutils ;;
+esac
+
+upload_file() {
+	local from="$1"
+	local to="$2"
+	for i in 1 2 3
+	do
+		scp -o "StrictHostKeyChecking no" "$from" "$to"
+		[ $? = 0 ] && return 0
+		sleep 1
+	done
+	exit 1
+}
+
+link_file() {
+	local from="$1"
+	local to="$2"
+	for i in 1 2 3
+	do
+		ssh -o "StrictHostKeyChecking no" $SERVER -- "cd www/snapshots/${PROJECT_DIR}; ln -sf $from $to"
+		[ $? = 0 ] && return 0
+		sleep 1
+	done
+	exit 1
+}
+
+upload_file "$ARCHIVE_PATH" "${UPLOAD_DIR}/${PROJECT_DIR}/${ARCHIVE_NAME}"
+
+#
+# *-latest links are currently not provided, because we dont
+# want to overwrite known-to-work versions that are used for
+# other projects with experimental ones
+#
+#if test -z "${CPU_TARGET}"
+#then
+#	link_file "$ARCHIVE_NAME" "${PROJECT_DIR}-${toolsuffix}-latest.${DEPLOY_ARCHIVE}"
+#	# traditionally, that link did not contain the cross toolchain suffix
+#	if test "$toolsuffix" = "mint"; then
+#		link_file "$ARCHIVE_NAME" "${PROJECT_DIR}-latest.${DEPLOY_ARCHIVE}"
+#	fi
+#fi
+
+echo ${PROJECT_NAME}-${PROJECT_VERSION}-${SHORT_ID} > .latest_version
+upload_file .latest_version "${UPLOAD_DIR}/${PROJECT_DIR}/.latest_version"

.scripts/install_ssh_id.sh

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+#!/bin/bash -eu
+# -e: Exit immediately if a command exits with a non-zero status.
+# -u: Treat unset variables as an error when substituting.
+
+# This installs an SSH private/public key pair on the build system,
+# so ssh can connect to remote servers without password.
+# Important: for passwordless connection to succeed, our public key must be
+# manually authorized on the remote server.
+
+# Our private key is the critical security component, it must remain secret.
+# We store it in the SSH_ID environment variable in Travis CI project settings.
+# As environment variables can only contain text, our key files are transformed
+# like this: tar, xz, base64. Then then can be decoded here. This is safe as
+# Travis CI never shows the contents of secure variables.
+
+# To generate the contents of the SSH_ID variable:
+# Be sure to be in an empty, temporary directory.
+#
+# mkdir .ssh
+# ssh-keygen -t rsa -b 4096 -C travis-ci.org/$USER/$PROJECT -N '' -f .ssh/id_rsa
+# tar Jcvf id.tar.xz .ssh
+# base64 -w 0 id.tar.xz
+#
+# Select the resulting encoded text (several lines) to copy it to the clipboard.
+# Then go to the Travis CI project settings:
+# https://travis-ci.org/$USER/$PROJECT/settings
+# Create a new environment variable named SSH_ID, and paste the value.
+# The script below will recreate the key files from that variable contents.
+
+if [ -z ${SSH_ID+x} ]
+then
+  echo "error: SSH_ID is undefined" >&2
+  exit 1
+fi
+
+echo $SSH_ID | base64 -d | tar -C ~ -Jx
+
+ls -l ~/.ssh

.scripts/setup_env.sh

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+#!/bin/sh
+# Use as: ". setup_env.sh"
+set -x
+
+PROJECT_REPO=$(echo "${GITHUB_REPOSITORY}" | cut -d '/' -f 1)
+echo "PROJECT_REPO=${PROJECT_REPO}" >> $GITHUB_ENV
+# PROJECT_NAME=$(echo "${GITHUB_REPOSITORY}" | cut -d '/' -f 2)
+PROJECT_NAME=binutils
+echo "PROJECT_NAME=${PROJECT_NAME}" >> $GITHUB_ENV
+INSTALL_DIR="/tmp/${PROJECT_NAME}"
+echo "INSTALL_DIR=${INSTALL_DIR}" >> $GITHUB_ENV
+DEPLOY_DIR="/tmp/${PROJECT_NAME}-deploy"
+echo "DEPLOY_DIR=${DEPLOY_DIR}" >> $GITHUB_ENV
+DEPLOY_ARCHIVE="tar.bz2"
+echo "DEPLOY_ARCHIVE=${DEPLOY_ARCHIVE}" >> $GITHUB_ENV
+
+SHORT_ID=$(echo ${GITHUB_SHA} | cut -c 1-3)
+echo "SHORT_ID=$SHORT_ID" >> $GITHUB_ENV
+LONG_ID=$(echo ${GITHUB_SHA} | cut -c 1-8)
+echo "LONG_ID=$LONG_ID" >> $GITHUB_ENV
+BRANCH=$(echo "${GITHUB_REF}" | cut -d '/' -f 3)
+
+# PROJECT_VERSION is defined in the action script
+# PROJECT_VERSION=`cat bfd/version.m4 | sed -n 's/.*\[\([0-9][0-9.]*\)\].*/\1/p'`
+echo "PROJECT_VERSION=${PROJECT_VERSION}" >> $GITHUB_ENV
+
+if test "$CPU_TARGET" != ""; then
+	echo "CPU_TARGET=$CPU_TARGET" >> $GITHUB_ENV
+fi
+if test "$CROSS_TOOL" != ""; then
+	echo "CROSS_TOOL=$CROSS_TOOL" >> $GITHUB_ENV
+fi
+
+# GITHUB_HEAD_REF is only set for pull requests
+if [ "${GITHUB_HEAD_REF}" = "" ]
+then
+    COMMIT_MESSAGE="[${PROJECT_NAME}] [${BRANCH}] Commit: https://github.com/${PROJECT_REPO}/${PROJECT_NAME}/commit/${GITHUB_SHA}"
+fi
+
+echo "COMMIT_MESSAGE=$COMMIT_MESSAGE" >> $GITHUB_ENV