4 function detect_platform_type () {
5 local -r canon_name="canon-name/src/canon-name"
7 if ! gmake --question --file="mk/canon-name.mk" >/dev/null 2>&1; then
8 gmake --file="mk/canon-name.mk" >&2
14 function detect_number_of_cpus () {
15 if ! sysctl -n hw.ncpu 2>/dev/null; then
16 echo "WARNING: I don't know how to detect the number of processors on this platform." >&2
17 echo "WARNING: GHC will be built using only 1 processor. Expect some slowdown." >&2
22 function detect_gnu_tar () {
23 if which gnutar >/dev/null 2>&1; then
25 elif which gtar >/dev/null 2>&1; then
28 echo "We need GNU tar to be installed." >&2
33 function say_hello () {
34 local -r self=$(basename "$0")
35 local -r platform=$(detect_platform_type)
36 local -r n_cpus=$(detect_number_of_cpus)
38 echo -n "This is $self, running on $platform with $n_cpus "
39 if (( $n_cpus == 1 )); then
47 local -r archive="work/archive"
50 if [[ -e "$archive" ]]; then
51 srcpath=$(cat "$archive")
54 if [[ -z "$srcpath" || ! -e "$srcpath" ]]; then
56 read -e -p "Enter the file path to ghc-x.y.z-src.tar.bz2: " srcpath
57 if [[ -e "$srcpath" ]]; then
59 echo "$srcpath" > "$archive"
61 echo "$srcpath not found." >&2
69 function build_hc_pkg () {
70 local -r srcpath="$(srcpath)"
73 -j $(($(detect_number_of_cpus) + 1)) \
76 PLATFORM="$(detect_platform_type)" \
77 GNUTAR="$(detect_gnu_tar)" \
80 echo "If you are done, run \"$0 clean\" to cleanup the working directory."
96 echo "Usage: $0 [clean]" >&2