build-emacs-rc.sh

#!/usr/bin/env bash

# Written and placed in public domain by Jeffrey Walton
# This script builds Emacs and its dependencies from sources.

EMACS_VER=28.0
EMACS_TAR=emacs-${EMACS_VER}-rc1.tar.gz
EMACS_DIR=emacs-${EMACS_VER}
PKG_NAME=emacs-rc

###############################################################################

# Get the environment as needed.
if [[ "${SETUP_ENVIRON_DONE}" != "yes" ]]; then
    if ! source ./setup-environ.sh
    then
        echo "Failed to set environment"
        exit 1
    fi
fi

# The password should die when this subshell goes out of scope
if [[ "${SUDO_PASSWORD_DONE}" != "yes" ]]; then
    if ! source ./setup-password.sh
    then
        echo "Failed to process password"
        exit 1
    fi
fi

###############################################################################

if ! ./build-cacert.sh
then
    echo "Failed to install CA Certs"
    exit 1
fi

###############################################################################

if ! ./build-zlib.sh
then
    echo "Failed to build zLib"
    exit 1
fi

###############################################################################

if ! ./build-ncurses-readline.sh
then
    echo "Failed to build Ncurses and Readline"
    exit 1
fi

###############################################################################

if ! ./build-libxml2.sh
then
    echo "Failed to build libxml2"
    exit 1
fi

###############################################################################

if ! ./build-gmp.sh
then
    echo "Failed to build GMP"
    exit 1
fi

###############################################################################

if ! ./build-libgcrypt.sh
then
    echo "Failed to build Libgcrypt"
    exit 1
fi

###############################################################################

echo ""
echo "========================================"
echo "================ Emacs ================="
echo "========================================"

echo ""
echo "**********************"
echo "Downloading package"
echo "**********************"

echo ""
echo "Emacs ${EMACS_VER}..."

if ! "${WGET}" -q -O "$EMACS_TAR" --ca-certificate="${LETS_ENCRYPT_ROOT}" \
     "https://alpha.gnu.org/gnu/emacs/pretest/$EMACS_TAR"
then
    echo "Failed to download Emacs"
    exit 1
fi

rm -rf "$EMACS_DIR" &>/dev/null
gzip -d < "$EMACS_TAR" | tar xf -
cd "$EMACS_DIR"

# Fix sys_lib_dlsearch_path_spec
bash "${INSTX_TOPDIR}/fix-configure.sh"

echo ""
echo "**********************"
echo "Configuring package"
echo "**********************"

if [[ "${INSTX_DEBUG_MAP}" -eq 1 ]]; then
    emacs_cflags="${INSTX_CFLAGS} -fdebug-prefix-map=${PWD}=${INSTX_SRCDIR}/${EMACS_DIR}"
    emacs_cxxflags="${INSTX_CXXFLAGS} -fdebug-prefix-map=${PWD}=${INSTX_SRCDIR}/${EMACS_DIR}"
else
    emacs_cflags="${INSTX_CFLAGS}"
    emacs_cxxflags="${INSTX_CXXFLAGS}"
fi

CONFIG_OPTS=()
CONFIG_OPTS+=("--without-all")
CONFIG_OPTS+=("--with-xml2")
CONFIG_OPTS+=("--with-json")
CONFIG_OPTS+=("--with-libgmp")
CONFIG_OPTS+=("--with-zlib")

if [[ "${IS_DARWIN}" -eq 1 ]]; then
    # Disable NextStep app
    CONFIG_OPTS+=('--without-ns')
fi
if [[ $(command -v gnutls-cli 2>/dev/null) ]]; then
    CONFIG_OPTS+=('--with-gnutls')
else
    CONFIG_OPTS+=('--without-gnutls')
fi
if [[ -e "/usr/include/selinux/context.h" ]]; then
    CONFIG_OPTS+=('--with-selinux')
else
    CONFIG_OPTS+=('--without-selinux')
fi

    PKG_CONFIG_PATH="${INSTX_PKGCONFIG}" \
    CPPFLAGS="${INSTX_CPPFLAGS}" \
    ASFLAGS="${INSTX_ASFLAGS}" \
    CFLAGS="${emacs_cflags}" \
    CXXFLAGS="${emacs_cxxflags}" \
    LDFLAGS="${INSTX_LDFLAGS}" \
    LIBS="${INSTX_LDLIBS}" \
./configure \
    --build="${AUTOCONF_BUILD}" \
    --prefix="${INSTX_PREFIX}" \
    --libdir="${INSTX_LIBDIR}" \
    "${CONFIG_OPTS[@]}"

if [[ "$?" -ne 0 ]]; then
    echo ""
    echo "*************************"
    echo "Failed to configure Emacs"
    echo "*************************"

    bash "${INSTX_TOPDIR}/collect-logs.sh" "${PKG_NAME}"
    exit 1
fi

# I'm not sure why we need to set DO_CODESIGN=yes.
if [[ "${IS_DARWIN}" -eq 1 ]]; then
    file=src/Makefile
    sed 's/DO_CODESIGN=.*/DO_CODESIGN=yes/g' "${file}" > "${file}.fixed"
    mv "${file}.fixed" "${file}"
    chmod u=rw,go=r "${file}"
fi

# Escape dollar sign for $ORIGIN in makefiles. Required so
# $ORIGIN works in both configure tests and makefiles.
bash "${INSTX_TOPDIR}/fix-makefiles.sh"

echo ""
echo "**********************"
echo "Building package"
echo "**********************"

MAKE_FLAGS=("V=1")
if ! "${MAKE}" "${MAKE_FLAGS[@]}"
then
    echo ""
    echo "*************************"
    echo "Failed to build Emacs"
    echo "*************************"

    bash "${INSTX_TOPDIR}/collect-logs.sh" "${PKG_NAME}"
    exit 1
fi

# Fix flags in *.pc files
bash "${INSTX_TOPDIR}/fix-pkgconfig.sh"

# Fix runpaths
bash "${INSTX_TOPDIR}/fix-runpath.sh"

echo ""
echo "**********************"
echo "Testing package"
echo "**********************"

MAKE_FLAGS=("check" "-k" "V=1")
if ! "${MAKE}" "${MAKE_FLAGS[@]}"
then
    echo ""
    echo "*************************"
    echo "Failed to test Emacs"
    echo "*************************"

    bash "${INSTX_TOPDIR}/collect-logs.sh" "${PKG_NAME}"
    # exit 1

    echo ""
    echo "*************************"
    echo "Installing anyways..."
    echo "*************************"
fi

# Its a RC. Just bail.
exit 0

# Fix runpaths again
bash "${INSTX_TOPDIR}/fix-runpath.sh"

echo ""
echo "**********************"
echo "Installing package"
echo "**********************"

MAKE_FLAGS=("install")
if [[ -n "${SUDO_PASSWORD}" ]]; then
    printf "%s\n" "${SUDO_PASSWORD}" | sudo ${SUDO_ENV_OPT} -S "${MAKE}" "${MAKE_FLAGS[@]}"
    printf "%s\n" "${SUDO_PASSWORD}" | sudo ${SUDO_ENV_OPT} -S bash "${INSTX_TOPDIR}/fix-permissions.sh" "${INSTX_PREFIX}"
    printf "%s\n" "${SUDO_PASSWORD}" | sudo ${SUDO_ENV_OPT} -S bash "${INSTX_TOPDIR}/copy-sources.sh" "${PWD}" "${INSTX_SRCDIR}/${EMACS_DIR}"
else
    "${MAKE}" "${MAKE_FLAGS[@]}"
    bash "${INSTX_TOPDIR}/fix-permissions.sh" "${INSTX_PREFIX}"
    bash "${INSTX_TOPDIR}/copy-sources.sh" "${PWD}" "${INSTX_SRCDIR}/${EMACS_DIR}"
fi

###############################################################################

echo ""
echo "*****************************************************************************"
echo "Please run Bash's 'hash -r' to update program cache in the current shell"
echo "*****************************************************************************"

###############################################################################

touch "${INSTX_PKG_CACHE}/${PKG_NAME}"

cd "${CURR_DIR}" || exit 1

###############################################################################

# Set to false to retain artifacts
if true;
then
    ARTIFACTS=("$EMACS_TAR" "$EMACS_DIR")
    for artifact in "${ARTIFACTS[@]}"; do
        rm -rf "$artifact"
    done
fi

exit 0