+# Programs returning != 0 will not cause script to exit
+set +e
+
+# Case insensitive string comparison
+shopt -s nocaseglob
+#shopt -s nocasematch
+
+ECHO=echo
+OS=
+ARCH=
+WORD=
+GIT_PROTOCOL=${GIT_PROTOCOL:="https"}
+GIT_URL=${GIT_URL:=$GIT_PROTOCOL"://github.com/factor/factor.git"}
+SCRIPT_ARGS="$*"
+
+REQUIRE_CLANG_VERSION=3.1
+
+# return 1 on found
+test_program_installed() {
+ if ! [[ -n $(type -p $1) ]] ; then
+ return 0;
+ fi
+ return 1;
+}
+
+# return 1 on found
+test_programs_installed() {
+ local installed=0;
+ $ECHO -n "Checking for all($*)..."
+ for i in "$@" ;
+ do
+ test_program_installed $i
+ if [[ $? -eq 1 ]]; then
+ installed=$(( $installed + 1 ))
+ fi
+ done
+ if [[ $installed -eq $# ]] ; then
+ $ECHO "found!"
+ return 1
+ else
+ $ECHO "all not found."
+ return 0
+ fi
+}
+
+exit_script() {
+ if [[ $FIND_MAKE_TARGET = true ]] ; then
+ # Must be echo not $ECHO
+ echo $MAKE_TARGET;
+ fi
+ exit $1
+}
+
+ensure_program_installed() {
+ local installed=0;
+ $ECHO -n "Checking for any($*)..."
+ for i in "$@" ;
+ do
+ test_program_installed $i
+ if [[ $? -eq 1 ]]; then
+ $ECHO "found $i!"
+ installed=$(( $installed + 1 ))
+ return
+ fi
+ done
+ $ECHO "none found."
+ $ECHO -n "Install "
+ if [[ $# -eq 1 ]] ; then
+ $ECHO -n $1
+ else
+ $ECHO -n "any of [ $* ]"
+ fi
+ $ECHO " and try again."
+ if [[ $OS == macosx ]] ; then
+ $ECHO "If you have Xcode 4.3 or higher installed, you must install the"
+ $ECHO "Command Line Tools from Xcode Preferences > Downloads in order"
+ $ECHO "to build Factor."
+ fi
+ exit_script 1;
+}
+
+check_ret() {
+ # Can't execute any commands before saving $?
+ # $1 is the name of the command we are checking
+ RET=$?
+ if [[ $RET -ne 0 ]] ; then
+ $ECHO $1 failed
+ exit_script 2
+ fi
+}
+
+set_downloader() {
+ test_program_installed wget
+ if [[ $? -ne 0 ]] ; then
+ DOWNLOADER="wget -nd"
+ DOWNLOADER_NAME=wget
+ return
+ fi
+ test_program_installed curl
+ if [[ $? -ne 0 ]] ; then
+ DOWNLOADER="curl -L -f -O"
+ DOWNLOADER_NAME=curl
+ return
+ fi
+ $ECHO "error: wget or curl required"
+ exit_script 11
+}
+
+set_md5sum() {
+ test_program_installed md5sum
+ if [[ $? -ne 0 ]] ; then
+ MD5SUM=md5sum
+ else
+ MD5SUM="md5 -r"
+ fi
+}
+
+semver_into() {
+ RE_SEMVER="^([0-9]*)\.([0-9]*)\.([0-9]*)-?(.*)?$" # 3.3.3-5
+ CLANG_RE_OLD="^([0-9]*)\.([0-9]*)-?(.*)?$" # 3.3-5
+ if [[ $1 =~ $RE_SEMVER ]] ; then
+ export "$2=${BASH_REMATCH[1]}"
+ export "$3=${BASH_REMATCH[2]}"
+ export "$4=${BASH_REMATCH[3]}"
+ export "$5=${BASH_REMATCH[4]}"
+ elif [[ $1 =~ $CLANG_RE_OLD ]] ; then
+ export "$2=${BASH_REMATCH[1]}"
+ export "$3=${BASH_REMATCH[2]}"
+ export "$4=0"
+ export "$5=${BASH_REMATCH[3]}"
+ else
+ echo "unsupported version number, please report a bug: $1"
+ exit 123
+ fi
+}
+
+clang_version_ok() {
+ CLANG_VERSION=$(clang --version | head -n1)
+ CLANG_VERSION_RE='^[a-zA-Z0-9 ]* version (.*)$' # 3.3-5
+ if [[ $CLANG_VERSION =~ $CLANG_VERSION_RE ]] ; then
+ export "CLANG_VERSION=${BASH_REMATCH[1]}"
+ local CLANG_MAJOR CLANG_MINOR CLANG_PATCH CLANG_SPECIAL
+ semver_into "$CLANG_VERSION" CLANG_MAJOR CLANG_MINOR CLANG_PATCH CLANG_SPECIAL
+ if [[ $CLANG_MAJOR -lt 3
+ || ( $CLANG_MAJOR -eq 3 && $CLANG_MINOR -le 1 )
+ ]] ; then
+ echo "clang version required >= $REQUIRE_CLANG_VERSION, got $CLANG_VERSION"
+ return 1
+ fi
+ else
+ return 1
+ fi
+ return 0
+}
+
+set_cc() {
+ # on Cygwin we MUST use the MinGW "cross-compiler", therefore check these first
+ # furthermore, we prefer 64 bit over 32 bit versions if both are available
+
+ # we need this condition so we don't find a mingw32 compiler on linux
+ if [[ $OS == windows ]] ; then
+ test_programs_installed x86_64-w64-mingw32-gcc x86_64-w64-mingw32-g++
+ if [[ $? -ne 0 ]] ; then
+ [ -z "$CC" ] && CC=x86_64-w64-mingw32-gcc
+ [ -z "$CXX" ] && CXX=x86_64-w64-mingw32-g++
+ return
+ fi
+
+ test_programs_installed i686-w64-mingw32-gcc i686-w64-mingw32-g++
+ if [[ $? -ne 0 ]] ; then
+ [ -z "$CC" ] && CC=i686-w64-mingw32-gcc
+ [ -z "$CXX" ] && CXX=i686-w64-mingw32-g++
+ return
+ fi
+ fi
+
+ test_programs_installed clang clang++
+ if [[ $? -ne 0 ]] && clang_version_ok ; then
+ [ -z "$CC" ] && CC=clang
+ [ -z "$CXX" ] && CXX=clang++
+ return
+ fi
+
+ # gcc and g++ will fail to correctly build Factor on Cygwin
+ test_programs_installed gcc g++
+ if [[ $? -ne 0 ]] ; then
+ [ -z "$CC" ] && CC=gcc
+ [ -z "$CXX" ] && CXX=g++
+ return
+ fi
+
+ $ECHO "error: high enough version of either (clang/clang++) or (gcc/g++) required!"
+ exit_script 10
+}
+
+set_make() {
+ case $OS in
+ freebsd) MAKE=gmake ;;
+ *) MAKE=make ;;
+ esac
+ if [[ $MAKE = 'gmake' ]] ; then
+ ensure_program_installed gmake
+ fi
+}
+
+check_installed_programs() {
+ ensure_program_installed chmod
+ ensure_program_installed uname
+ ensure_program_installed git
+ ensure_program_installed wget curl
+ ensure_program_installed clang x86_64-w64-mingw32-gcc i686-w64-mingw32-gcc gcc
+ ensure_program_installed clang++ x86_64-w64-mingw32-g++ i686-w64-mingw32-g++ g++ cl
+ ensure_program_installed make gmake
+ ensure_program_installed md5sum md5
+ ensure_program_installed cut
+}
+
+check_library_exists() {
+ GCC_TEST=factor-library-test.c
+ GCC_OUT=factor-library-test.out
+ $ECHO -n "Checking for library $1..."
+ $ECHO "int main(){return 0;}" > $GCC_TEST
+ $CC $GCC_TEST -o $GCC_OUT -l $1 2>&-
+ if [[ $? -ne 0 ]] ; then
+ $ECHO "not found."
+ else
+ $ECHO "found."
+ fi
+ $DELETE -f $GCC_TEST
+ check_ret $DELETE
+ $DELETE -f $GCC_OUT
+ check_ret $DELETE
+}
+
+check_X11_libraries() {
+ check_library_exists GL
+ check_library_exists X11
+ check_library_exists pango-1.0
+}
+
+check_gtk_libraries() {
+ check_library_exists gobject-2.0
+ check_library_exists gtk-x11-2.0
+ check_library_exists gdk-x11-2.0
+ check_library_exists gdk_pixbuf-2.0
+ check_library_exists gtkglext-x11-1.0
+ check_library_exists atk-1.0
+ check_library_exists gio-2.0
+ check_library_exists gdkglext-x11-1.0
+ check_library_exists pango-1.0
+}
+
+
+check_libraries() {
+ case $OS in
+ linux) check_X11_libraries
+ check_gtk_libraries ;;
+ unix) check_gtk_libraries ;;
+ esac
+}
+
+check_factor_exists() {
+ if [[ -d "factor" ]] ; then
+ $ECHO "A directory called 'factor' already exists."
+ $ECHO "Rename or delete it and try again."
+ exit_script 4
+ fi
+}
+
+find_os() {
+ if [[ -n $OS ]] ; then return; fi
+ $ECHO "Finding OS..."
+ local uname_s=$(uname -s)
+ check_ret uname
+ case $uname_s in
+ CYGWIN_NT-5.2-WOW64) OS=windows ;;
+ *CYGWIN_NT*) OS=windows ;;
+ *CYGWIN*) OS=windows ;;
+ MINGW32*) OS=windows ;;
+ MINGW64*) OS=windows ;;
+ MSYS_NT*) OS=windows ;;
+ *darwin*) OS=macosx ;;
+ *Darwin*) OS=macosx ;;
+ *linux*) OS=linux ;;
+ *Linux*) OS=linux ;;
+ FreeBSD) OS=freebsd ;;
+ Haiku) OS=haiku ;;
+ esac
+}
+
+find_architecture() {
+ if [[ -n $ARCH ]] ; then return; fi
+ $ECHO "Finding ARCH..."
+ uname_m=$(uname -m)
+ check_ret uname
+ case $uname_m in
+ i386) ARCH=x86 ;;
+ i686) ARCH=x86 ;;
+ i86pc) ARCH=x86 ;;
+ amd64) ARCH=x86 ;;
+ ppc64) ARCH=ppc ;;
+ *86) ARCH=x86 ;;
+ *86_64) ARCH=x86 ;;
+ aarch64) ARCH=arm64 ;;
+ arm64) ARCH=arm64 ;;
+ iPhone5*[3-9]) ARCH=arm64 ;;
+ iPhone[6-9]*) ARCH=arm64 ;;
+ iPhone[1-9][0-9]*) ARCH=arm64 ;;
+ iPad[4-9]*) ARCH=arm64 ;;
+ iPad[1-9][0-9]*) ARCH=arm64 ;;
+ AppleTV[5-9]*) ARCH=arm64 ;;
+ AppleTV[1-9][0-9]*) ARCH=arm64 ;;
+ "Power Macintosh") ARCH=ppc ;;
+ esac
+}
+
+find_num_cores() {
+ $ECHO "Finding NUM_CORES..."
+ NUM_CORES=1
+ uname_s=$(uname -s)
+ check_ret uname
+ case $uname_s in
+ CYGWIN_NT-5.2-WOW64 | *CYGWIN_NT* | *CYGWIN* | MINGW32*) NUM_CORES=$NUMBER_OF_PROCESSORS ;;
+ *linux* | *Linux*) NUM_CORES=$(getconf _NPROCESSORS_ONLN || nproc) ;;
+ *darwin* | *Darwin* | freebsd) NUM_CORES=$(sysctl -n hw.ncpu) ;;
+ esac
+}
+
+find_word_size() {
+ if [[ -n $WORD ]] ; then return; fi
+ $ECHO "Finding WORD..."
+ WORD=$(getconf LONG_BIT || find_word_size_cpp || find_word_size_c)
+}
+
+find_word_size_cpp() {
+ SIXTY_FOUR='defined(__aarch64__) || defined(__x86_64__) || defined(_M_AMD64) || defined(__PPC64__) || defined(__64BIT__)'
+ THIRTY_TWO='defined(i386) || defined(__i386) || defined(__i386__) || defined(_MIX86)'
+ $CC -E -xc <(echo -e "#if ${SIXTY_FOUR}\n64\n#elif ${THIRTY_TWO}\n32\n#endif") | tail -1
+}
+
+find_word_size_c() {
+ C_WORD="factor-word-size"
+ TEST_PROGRAM="int main(){ return (long)(8*sizeof(void*)); }"
+ echo $TEST_PROGRAM | $CC -o $C_WORD -xc -
+ check_ret $CC
+ ./$C_WORD
+ WORD_OUT=$?
+ case $WORD_OUT in
+ 32) ;;
+ 64) ;;
+ *)
+ echo "Word size should be 32/64, got '$WORD_OUT'"
+ exit_script 15 ;;
+ esac
+ $DELETE -f $C_WORD
+ echo "$WORD_OUT"
+}
+
+set_factor_binary() {
+ case $OS in
+ windows) FACTOR_BINARY=factor.com ;;
+ *) FACTOR_BINARY=factor ;;
+ esac
+}
+
+set_factor_library() {
+ case $OS in
+ windows) FACTOR_LIBRARY=factor.dll ;;
+ macosx) FACTOR_LIBRARY=libfactor.dylib ;;
+ *) FACTOR_LIBRARY=libfactor.a ;;
+ esac
+}
+
+set_factor_image() {
+ FACTOR_IMAGE=factor.image
+ FACTOR_IMAGE_FRESH=factor.image.fresh
+}
+
+echo_build_info() {
+ $ECHO OS=$OS
+ $ECHO ARCH=$ARCH
+ $ECHO NUM_CORES=$NUM_CORES
+ $ECHO WORD=$WORD
+ $ECHO DEBUG=$DEBUG
+ $ECHO REPRODUCIBLE=$REPRODUCIBLE
+ $ECHO CURRENT_BRANCH=$CURRENT_BRANCH
+ $ECHO FACTOR_BINARY=$FACTOR_BINARY
+ $ECHO FACTOR_LIBRARY=$FACTOR_LIBRARY
+ $ECHO FACTOR_IMAGE=$FACTOR_IMAGE
+ $ECHO MAKE_TARGET=$MAKE_TARGET
+ $ECHO BOOT_IMAGE=$BOOT_IMAGE
+ $ECHO MAKE_IMAGE_TARGET=$MAKE_IMAGE_TARGET
+ $ECHO GIT_PROTOCOL=$GIT_PROTOCOL
+ $ECHO GIT_URL=$GIT_URL
+ $ECHO CHECKSUM_URL=$CHECKSUM_URL
+ $ECHO BOOT_IMAGE_URL=$BOOT_IMAGE_URL
+ $ECHO DOWNLOADER=$DOWNLOADER
+ $ECHO CC=$CC
+ $ECHO CXX=$CXX
+ $ECHO MAKE=$MAKE
+ $ECHO COPY=$COPY
+ $ECHO DELETE=$DELETE
+}
+
+check_os_arch_word() {
+ if ! [[ -n $OS && -n $ARCH && -n $WORD ]] ; then
+ $ECHO "OS: $OS"
+ $ECHO "ARCH: $ARCH"
+ $ECHO "WORD: $WORD"
+ $ECHO "OS, ARCH, or WORD is empty. Please report this."
+
+ $ECHO $MAKE_TARGET
+ exit_script 5
+ fi
+}
+
+set_build_info() {
+ check_os_arch_word
+ if [[ $OS == linux && $ARCH == ppc ]] ; then
+ MAKE_IMAGE_TARGET=linux-ppc.32
+ MAKE_TARGET=linux-ppc-32
+ elif [[ $OS == linux && $ARCH == arm64 ]] ; then
+ MAKE_IMAGE_TARGET=unix-arm.64
+ MAKE_TARGET=linux-arm-64
+ elif [[ $OS == macosx && $ARCH == arm64 ]] ; then
+ MAKE_IMAGE_TARGET=unix-arm.64
+ MAKE_TARGET=macosx-arm64
+ elif [[ $OS == windows && $ARCH == x86 && $WORD == 64 ]] ; then
+ MAKE_IMAGE_TARGET=windows-x86.64
+ MAKE_TARGET=windows-x86-64
+ elif [[ $OS == windows && $ARCH == x86 && $WORD == 32 ]] ; then
+ MAKE_IMAGE_TARGET=windows-x86.32
+ MAKE_TARGET=windows-x86-32
+ elif [[ $ARCH == x86 && $WORD == 64 ]] ; then
+ MAKE_IMAGE_TARGET=unix-x86.64
+ MAKE_TARGET=$OS-x86-64
+ elif [[ $ARCH == x86 && $WORD == 32 ]] ; then
+ MAKE_IMAGE_TARGET=unix-x86.32
+ MAKE_TARGET=$OS-x86-32
+ else
+ MAKE_IMAGE_TARGET=$ARCH.$WORD
+ MAKE_TARGET=$OS-$ARCH-$WORD
+ fi
+ BOOT_IMAGE=boot.$MAKE_IMAGE_TARGET.image
+}
+
+parse_build_info() {
+ ensure_program_installed cut
+ $ECHO "Parsing make target from command line: $1"
+ OS=$(echo $1 | cut -d '-' -f 1)
+ ARCH=$(echo $1 | cut -d '-' -f 2)
+ WORD=$(echo $1 | cut -d '-' -f 3)
+
+ if [[ $OS == linux && $ARCH == ppc ]] ; then WORD=32; fi
+ if [[ $OS == linux && $ARCH == arm ]] ; then WORD=32; fi
+ if [[ $OS == macosx && $ARCH == ppc ]] ; then WORD=32; fi
+
+ $ECHO "OS=$OS"
+ $ECHO "ARCH=$ARCH"
+ $ECHO "WORD=$WORD"
+}
+
+find_build_info() {
+ find_os
+ find_architecture
+ find_num_cores
+ set_cc
+ find_word_size
+ set_current_branch
+ set_factor_binary
+ set_factor_library
+ set_factor_image
+ set_build_info
+ set_downloader
+ set_boot_image_vars
+ set_make
+ echo_build_info
+}
+
+invoke_git() {
+ git "$@"
+ check_ret git
+}
+
+git_clone() {
+ $ECHO "Downloading the git repository from github.com..."
+ invoke_git clone $GIT_URL
+}
+
+update_script_name() {
+ $ECHO "$(dirname $0)/_update.sh"
+}
+
+update_script() {
+ local -r update_script=$(update_script_name)
+ local -r bash_path=$(which bash)
+ $ECHO "updating from ${CURRENT_BRANCH}"
+ $ECHO "#!$bash_path" >"$update_script"
+ $ECHO "git pull \"$GIT_URL\" ${CURRENT_BRANCH}" >>"$update_script"
+ $ECHO "if [[ \$? -eq 0 ]]; then exec \"$0\" $SCRIPT_ARGS; else echo \"git pull failed\"; exit 2; fi" \
+ >>"$update_script"
+ $ECHO "exit 0" >>"$update_script"
+
+ chmod 755 "$update_script"
+ exec "$update_script"
+}
+
+update_script_changed() {
+ invoke_git diff --stat "$(invoke_git merge-base HEAD FETCH_HEAD)" FETCH_HEAD | grep 'build\.sh' >/dev/null
+}
+
+git_fetch() {
+ $ECHO "Fetching the git repository from github.com..."
+ set_current_branch
+
+ rm -f "$(update_script_name)"
+ $ECHO git fetch "$GIT_URL" "${CURRENT_BRANCH}"
+ invoke_git fetch "$GIT_URL" "${CURRENT_BRANCH}"
+
+ if update_script_changed; then
+ $ECHO "Updating and restarting the build.sh script..."
+ update_script
+ else
+ $ECHO "Updating the working tree..."
+ invoke_git pull "$GIT_URL" "${CURRENT_BRANCH}"
+ fi
+}
+
+cd_factor() {
+ cd "factor"
+ check_ret cd
+}
+
+set_copy() {
+ case $OS in
+ windows) COPY=cp ;;
+ *) COPY=cp ;;
+ esac
+}
+
+set_delete() {
+ case $OS in
+ windows) DELETE=rm ;;
+ *) DELETE=rm ;;
+ esac
+}
+
+backup_factor() {
+ $ECHO "Backing up factor..."
+ $COPY $FACTOR_BINARY $FACTOR_BINARY.bak
+ $COPY $FACTOR_LIBRARY $FACTOR_LIBRARY.bak
+ $COPY $BOOT_IMAGE $BOOT_IMAGE.bak
+ $COPY $FACTOR_IMAGE $FACTOR_IMAGE.bak
+ $ECHO "Done with backup."
+}
+
+check_makefile_exists() {
+ if [[ ! -e "GNUmakefile" ]] ; then
+ $ECHO ""
+ $ECHO "***GNUmakefile not found***"
+ $ECHO "You are likely in the wrong directory."
+ $ECHO "Run this script from your factor directory:"
+ $ECHO " ./build.sh"
+ exit_script 6
+ fi
+}
+
+invoke_make() {
+ check_makefile_exists
+ $MAKE $MAKE_OPTS "$@"
+ check_ret $MAKE
+}
+
+make_clean() {
+ invoke_make clean
+}
+
+make_factor() {
+ $ECHO "Building factor with $NUM_CORES cores"
+ invoke_make CC=$CC CXX=$CXX $MAKE_TARGET -j$NUM_CORES
+}
+
+make_clean_factor() {
+ make_clean
+ make_factor
+}
+
+current_git_branch() {
+ # git rev-parse --abbrev-ref HEAD # outputs HEAD for detached head
+ # outputs nothing for detached HEAD, which is fine for ``git fetch``
+ git describe --all --exact-match 2>/dev/null | sed 's=.*/=='
+}
+
+check_url() {
+ if [[ $DOWNLOADER_NAME == 'wget' ]]; then
+ if [[ $(wget -S --spider $1 2>&1 | grep 'HTTP/1.1 200 OK') ]]; then
+ return 0
+ else
+ return 1
+ fi
+ elif [[ $DOWNLOADER_NAME == 'curl' ]]; then
+ local code=$(curl -sL -w "%{http_code}\\n" "$1" -o /dev/null)
+ if [[ $code -eq 200 ]]; then return 0; else return 1; fi
+ else
+ $ECHO "error: wget or curl required in check_url"
+ exit_script 12
+ fi
+}
+
+# If we are on a branch, first try to get a boot image for that branch.
+# Otherwise, just use `master`
+set_boot_image_vars() {
+ set_current_branch
+ local url="https://downloads.factorcode.org/images/${CURRENT_BRANCH}/checksums.txt"
+ check_url $url
+ if [[ $? -eq 0 ]]; then
+ CHECKSUM_URL="$url"
+ BOOT_IMAGE_URL="https://downloads.factorcode.org/images/${CURRENT_BRANCH}/${BOOT_IMAGE}"
+ else
+ $ECHO "boot image for branch \`${CURRENT_BRANCH}\` is not on server, trying master instead"
+ $ECHO " tried nonexistent url: ${url}"
+ CHECKSUM_URL="https://downloads.factorcode.org/images/master/checksums.txt"
+ BOOT_IMAGE_URL="https://downloads.factorcode.org/images/master/${BOOT_IMAGE}"
+ fi
+}
+
+set_current_branch() {
+ if [ -n "${CI_BRANCH}" ]; then
+ CURRENT_BRANCH="${CI_BRANCH}"
+ else
+ CURRENT_BRANCH=$(current_git_branch)
+ fi
+}
+
+update_boot_image() {
+ set_boot_image_vars
+ $ECHO "Deleting old images..."
+ $DELETE checksums.txt* > /dev/null 2>&1
+ # delete boot images with one or two characters after the dot
+ $DELETE $BOOT_IMAGE.{?,??} > /dev/null 2>&1
+ $DELETE temp/staging.*.image > /dev/null 2>&1
+ if [[ -f $BOOT_IMAGE ]] ; then
+ get_url $CHECKSUM_URL
+ local factorcode_md5=$(cat checksums.txt | grep $BOOT_IMAGE | cut -f2 -d' ')
+ set_md5sum
+ local disk_md5=$($MD5SUM $BOOT_IMAGE | cut -f1 -d' ')
+ $ECHO "Factorcode md5: $factorcode_md5";
+ $ECHO "Disk md5: $disk_md5";
+ if [[ "$factorcode_md5" == "$disk_md5" ]] ; then
+ $ECHO "Your disk boot image matches the one on downloads.factorcode.org."
+ else
+ $DELETE $BOOT_IMAGE > /dev/null 2>&1
+ get_boot_image
+ fi
+ else
+ get_boot_image
+ fi
+}
+
+get_boot_image() {
+ $ECHO "Downloading boot image $BOOT_IMAGE."
+ get_url "${BOOT_IMAGE_URL}"
+}
+
+get_url() {
+ if [[ -z $DOWNLOADER ]] ; then
+ set_downloader;
+ fi
+ $ECHO $DOWNLOADER $1 ;
+ $DOWNLOADER $1
+ check_ret $DOWNLOADER
+}
+
+get_config_info() {
+ find_build_info
+ check_installed_programs
+ check_libraries
+}
+
+copy_fresh_image() {
+ $ECHO "Copying $FACTOR_IMAGE to $FACTOR_IMAGE_FRESH..."
+ $COPY $FACTOR_IMAGE $FACTOR_IMAGE_FRESH
+}
+
+bootstrap() {
+ ./$FACTOR_BINARY -i=$BOOT_IMAGE
+ check_ret "./$FACTOR_BINARY bootstrap failed"
+ copy_fresh_image
+}
+
+install() {
+ check_factor_exists
+ get_config_info
+ git_clone
+ cd_factor
+ make_factor
+ set_boot_image_vars
+ get_boot_image
+ bootstrap
+}
+
+update() {
+ get_config_info
+ git_fetch
+ backup_factor
+ make_clean_factor
+}
+
+download_and_bootstrap() {
+ update_boot_image
+ bootstrap
+}
+
+net_bootstrap_no_pull() {
+ get_config_info
+ make_clean_factor
+ download_and_bootstrap
+}
+
+refresh_image() {
+ ./$FACTOR_BINARY -e="USING: vocabs.loader vocabs.refresh system memory ; refresh-all save 0 exit"
+ check_ret factor
+}
+
+make_boot_image() {
+ ./$FACTOR_BINARY -run="bootstrap.image" "$MAKE_IMAGE_TARGET"
+ check_ret factor
+}
+
+install_deps_apt() {
+ sudo apt install --yes libc6-dev libpango1.0-dev libx11-dev xorg-dev libgtk2.0-dev gtk2-engines-pixbuf libgtkglext1-dev wget git git-doc rlwrap clang make screen tmux libssl-dev
+ check_ret sudo
+}
+
+install_deps_pacman() {
+ sudo pacman --noconfirm -Syu gcc clang make rlwrap git wget pango glibc gtk2 gtk3 gtkglext gtk-engines gdk-pixbuf2 libx11 screen tmux
+ check_ret sudo
+}
+
+install_deps_dnf() {
+ sudo dnf --assumeyes install gcc gcc-c++ glibc-devel binutils libX11-devel pango-devel gtk3-devel gdk-pixbuf2-devel gtkglext-devel tmux rlwrap wget
+ check_ret sudo
+}
+
+install_deps_pkg() {
+ sudo pkg install --yes bash git gmake gcc rlwrap ripgrep curl gmake x11-toolkits/gtk30 x11-toolkits/gtkglext pango cairo vim
+}
+
+
+install_deps_macosx() {
+ test_program_installed git
+ if [[ $? -ne 1 ]] ; then
+ ensure_program_installed yes
+ $ECHO "git not found."
+ $ECHO "This script requires either git-core or port."
+ $ECHO "If it fails, install git-core or port and try again."
+ ensure_program_installed port
+ $ECHO "Installing git-core with port...this will take awhile."
+ yes | sudo port install git-core
+ fi
+}
+
+usage() {
+ $ECHO "usage: $0 command [optional-target]"
+ $ECHO " install - git clone, compile, bootstrap"
+ $ECHO " deps-apt - install required packages for Factor on Linux using apt"
+ $ECHO " deps-pacman - install required packages for Factor on Linux using pacman"
+ $ECHO " deps-dnf - install required packages for Factor on Linux using dnf"
+ $ECHO " deps-pkg - install required packages for Factor on FreeBSD using pkg"
+ $ECHO " deps-macosx - install git on MacOSX using port"
+ $ECHO " self-bootstrap - make local boot image, bootstrap"
+ $ECHO " self-update - git pull, recompile, make local boot image, bootstrap"
+ $ECHO " quick-update - git pull, refresh-all, save"
+ $ECHO " update|latest - git pull, recompile, download a boot image, bootstrap"
+ $ECHO " compile - compile the binary"
+ $ECHO " recompile - recompile the binary"
+ $ECHO " bootstrap - bootstrap with existing boot image"
+ $ECHO " net-bootstrap - recompile, download a boot image, bootstrap"
+ $ECHO " make-target - find and print the os-arch-cpu string"
+ $ECHO " report|info - print the build variables"
+ $ECHO " full-report - print the build variables, check programs and libraries"
+ $ECHO " update-boot-image - get the boot image for the current branch"
+ $ECHO ""
+ $ECHO "If you are behind a firewall, invoke as:"
+ $ECHO "env GIT_PROTOCOL=http $0 <command>"
+ $ECHO ""
+ $ECHO "Example for overriding the default target:"
+ $ECHO " $0 update macosx-x86-32"
+}
+
+MAKE_TARGET=unknown
+
+# -n is nonzero length, -z is zero length
+if [[ -n "$2" ]] ; then
+ parse_build_info $2
+fi
+
+if [ "$#" -gt 3 ]; then
+ usage
+ $ECHO "error: too many arguments"
+ exit 1
+fi
+
+
+set_copy
+set_delete
+
+case "$1" in
+ install) install ;;
+ deps-apt) install_deps_apt ;;
+ deps-pacman) install_deps_pacman ;;
+ deps-macosx) install_deps_macosx ;;
+ deps-dnf) install_deps_dnf ;;
+ deps-pkg) install_deps_pkg ;;
+ self-bootstrap) get_config_info; make_boot_image; bootstrap ;;
+ self-update) update; make_boot_image; bootstrap ;;
+ quick-update) update; refresh_image ;;
+ update|latest) update; download_and_bootstrap ;;
+ compile) find_build_info; make_factor ;;
+ recompile) find_build_info; make_clean; make_factor ;;
+ bootstrap) get_config_info; bootstrap ;;
+ net-bootstrap) net_bootstrap_no_pull ;;
+ make-target) FIND_MAKE_TARGET=true; ECHO=false; find_build_info; exit_script ;;
+ report|info) find_build_info ;;
+ full-report) find_build_info; check_installed_programs; check_libraries ;;
+ update-boot-image) find_build_info; check_installed_programs; update_boot_image ;;
+ *) usage ;;
+esac