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#!/usr/bin/env bash
# If this bash script works then it was written by Fish.
# If it doesn't then I don't know who the heck wrote it.
_versnum="2.5"
_versdate="January 3, 2021"
#------------------------------------------------------------------------------
# BUILD
#------------------------------------------------------------------------------
help()
{
errmsg ""
errmsg " NAME"
errmsg ""
errmsg " $nx0 -- Builds and installs a Hercules external package"
errmsg ""
errmsg " SYNOPSIS"
errmsg ""
errmsg " $nx0 [ { -d | --pkgdir } [ pkgdir ] ]"
errmsg " [ { -n | --pkgname } [ pkgname ] ]"
errmsg " [ { -m | --cpu } { arch } ]"
errmsg " [ { -a | --arch } { 64 | 32 | BOTH } ]"
errmsg " [ { -c | --config } { Release | Debug | BOTH } ]"
errmsg " [ { -all | --all } ]"
errmsg " [ { -r | --rebuild } ]"
errmsg " [ { -i | --install } [ instdir ] ]"
errmsg " [ { -u | --uninstall } [ uinstdir ] ]"
errmsg " [ { -f | --force } ]"
errmsg " [ { -su | --sudo } ]"
errmsg ""
errmsg " ARGUMENTS"
errmsg ""
errmsg " pkgdir The package directory where the CMakeLists.txt"
errmsg " file exists. This is usually the name of the"
errmsg " package's primary source directory (i.e. its"
errmsg " repository directory). The default when not"
errmsg " specified is the same directory as where $nx0"
errmsg " is running from."
errmsg ""
errmsg " pkgname The single word alphanumeric package name. The"
errmsg " default if not specified is derived from the last"
errmsg " directory component of pkgdir. The value \".\" may"
errmsg " be specified to derive from the last component of"
errmsg " the current directory instead."
errmsg ""
errmsg " cpu The machine (CPU) architecture of the target system"
errmsg " if other than x86. Recognized machine architectures"
errmsg " are: aarch64, arm, i686, mips, ppc, s390x, sparc,"
errmsg " x86, xscale, and unknown."
errmsg " The default if not specified is x86."
errmsg ""
errmsg " arch The build architecture. Use '32' to build an x86"
errmsg " 32-bit version of the package. Use '64' to build"
errmsg " an x64 64-bit version of the package. Use 'BOTH'"
errmsg " to build both architectures. The default is 64."
errmsg ""
errmsg " config The build configuration. Specify 'Debug' to build"
errmsg " an unoptimized debug version of the product. Use"
errmsg " Release to build an optimized version (which also"
errmsg " has debugging symbols). The default is Release."
errmsg ""
errmsg " install Install the package into the specified directory."
errmsg " If not specified the package won't be installed."
errmsg ""
errmsg " instdir The package installation directory. If specified"
errmsg " the given directory MUST exist. If not specified"
errmsg " the directory specified in a previous run is used"
errmsg " if such is possible. Otherwise the CMake default"
errmsg " installation directory is used instead, which for"
errmsg " Linux is /usr/local."
errmsg ""
errmsg " uninstall Uninstalls the previously installed package."
errmsg ""
errmsg " uinstdir The directory where the package was installed. If"
errmsg " specified without the force option, the value MUST"
errmsg " match the install directory used in a previous run."
errmsg " If not specified, then the install directory from"
errmsg " the previous run is retrieved from the CMake cache"
errmsg " and used instead. If the directory isn't found in"
errmsg " CMake's cache the package default install directory"
errmsg " is used instead. The directory MUST exist."
errmsg ""
errmsg " OPTIONS"
errmsg ""
errmsg " all Shorthand for \"--arch BOTH --config BOTH\"."
errmsg ""
errmsg " rebuild Forces a complete reconfigure and rebuild."
errmsg ""
errmsg " force Overrides CMake's cached install directory used in"
errmsg " a previous run and forces the uninstall to use the"
errmsg " specified directory instead. It effectively forces"
errmsg " a complete CMake reconfigure just like the rebuild"
errmsg " option does but is used exclusively for uninstalls."
errmsg ""
errmsg " sudo Prefix install or uninstall command with \"sudo\"."
errmsg " Use this option if installing to or uninstalling"
errmsg " from /usr/local or anywhere else requiring root."
errmsg ""
errmsg " NOTES"
errmsg ""
errmsg " $nx0 first creates a build directory in the current directory,"
errmsg " changes to the build directory, invokes the cmake command (to"
errmsg " create the makefile) and then issues the make and make install"
errmsg " commands to actually build and install the specified package"
errmsg " for the given cpu, architecture and configuration combination."
errmsg " The name of the build directory is derived from the package's"
errmsg " name and the specified architetcure/configuration combination."
errmsg ""
errmsg " EXIT STATUS"
errmsg ""
errmsg " 0 All requested actions successfully completed."
errmsg " n One or more builds/installs failed w/error(s) where 'n'"
errmsg " is the highest return code detected."
errmsg ""
errmsg " AUTHOR"
errmsg ""
errmsg " \"Fish\" (David B. Trout)"
errmsg ""
errmsg " VERSION"
errmsg ""
errmsg " $_versnum ($_versdate)"
errmsg ""
quit
}
#------------------------------------------------------------------------------
# INIT
#------------------------------------------------------------------------------
init()
{
pushd "." >/dev/null 2>&1
# Define some constants...
dp0="$(dirname "$0")"
nx0="$(basename "$0")"
x0="${nx0##*.}"
n0="${nx0%.*}"
nx0_cmdline="$nx0 $*"
rc=0
maxrc=0
tool1="cmake"
# Options as listed in help...
pkgdir=""
pkgname=""
install=""
instdir=""
uninstall=""
uinstdir=""
arch=""
config=""
rebuild=""
force=""
bldall=""
cpu=""
sudo=""
# Default values...
def_pkgdir="$dp0"
def_arch="64"
def_config="Release"
parse_args $@
}
#------------------------------------------------------------------------------
# push_shopt
#------------------------------------------------------------------------------
push_shopt()
{
if [[ -z $shopt_idx ]]; then shopt_idx="-1"; fi
shopt_idx=$(( $shopt_idx + 1 ))
shopt_opt[ $shopt_idx ]=$2
shopt -q $2
shopt_val[ $shopt_idx ]=$?
eval shopt $1 $2
}
#------------------------------------------------------------------------------
# pop_shopt
#------------------------------------------------------------------------------
pop_shopt()
{
if [[ -n $shopt_idx ]] && (( $shopt_idx >= 0 )); then
if (( ${shopt_val[ $shopt_idx ]} == 0 )); then
eval shopt -s ${shopt_opt[ $shopt_idx ]}
else
eval shopt -u ${shopt_opt[ $shopt_idx ]}
fi
shopt_idx=$(( $shopt_idx - 1 ))
fi
}
#------------------------------------------------------------------------------
# trace
#------------------------------------------------------------------------------
trace()
{
if [[ -n $debug ]] || \
[[ -n $DEBUG ]]; then
logmsg "++ $1"
fi
}
#------------------------------------------------------------------------------
# logmsg
#------------------------------------------------------------------------------
logmsg()
{
stdmsg "stdout" "$1"
}
#------------------------------------------------------------------------------
# errmsg
#------------------------------------------------------------------------------
errmsg()
{
stdmsg "stderr" "$1"
setrc1
}
#------------------------------------------------------------------------------
# stdmsg
#------------------------------------------------------------------------------
stdmsg()
{
local _stdxxx="$1"
local _msg="$2"
push_shopt -s nocasematch
if [[ $_stdxxx != "stdout" ]] && \
[[ $_stdxxx != "stderr" ]]; then
_stdxxx=stdout
fi
if [[ $_stdxxx == "stdout" ]]; then
echo "$_msg"
else
echo "$_msg" 1>&2
fi
pop_shopt
}
#------------------------------------------------------------------------------
# load_tools
#------------------------------------------------------------------------------
load_tools()
{
local _tool="$( which "$tool1" 2>/dev/null )"
if [[ -z $_tool ]] || \
[[ ! -x $_tool ]]; then errmsg "'$tool1' not found."
fi
}
#------------------------------------------------------------------------------
# fullpath
#------------------------------------------------------------------------------
fullpath()
{
# Upon return $fullpath will contain full path or empty string if not found.
# If optional argument 2 is passed then that variable also set to $fullpath.
fullpath="$(readlink -e "$1" 2>/dev/null)"
# PROGRAMMING NOTE: "fullpath" can fail on MacOS because it doesn't support
# the '-e' option. The following 'if' statement is the temporary workaround.
if [[ -z $fullpath ]] && [[ -a $1 ]]; then
# MacOS: "\"readlink -e $1\" resulted in a null string but the file exists.
fullpath="$1"
fi
# Assign the results to the requested return variable, if asked to.
if [[ -n $fullpath ]] && [[ -n $2 ]]; then
eval $2="\$fullpath"
fi
}
#------------------------------------------------------------------------------
# isfile
#------------------------------------------------------------------------------
isfile()
{
# isfile $foo; if [[ -n $isfile ]]; then isfile; else notfile; fi
if [[ -f $1 ]]; then isfile=1; else isfile=""; fi
}
#------------------------------------------------------------------------------
# isdir
#------------------------------------------------------------------------------
isdir()
{
# isdir $foo; if [[ -n $isdir ]]; then isdir; else notdir; fi
if [[ -d $1 ]]; then isdir=1; else isdir=""; fi
}
#------------------------------------------------------------------------------
# tempfn
#------------------------------------------------------------------------------
tempfn()
{
# Usage: tempfn tmpfn ext
# Upon return, $tmpfn will contain filename.ext
local _tmpf="$(mktemp)"
_tmpf="${_tmpf}.$2"
eval $1="\$_tmpf"
}
#------------------------------------------------------------------------------
# normalize_dir
#------------------------------------------------------------------------------
normalize_dir()
{
# Note: while Windows paths can contain mixed path separators ('/' or '\')
# Linux paths can only have one and ONLY one path separator character '/'
# so all we need to do here is to check for the trailing separator.
local var_name="$1"
local var_value="$2"
if [[ -n $var_value ]]; then
# Remove trailing separator if there is one
if [[ $var_value != "/" ]] && \
[[ ${var_value: -1} == "/" ]]; then
var_value=${var_value:0:${#var_value}-1}
fi
fi
eval $var_name="\$var_value"
}
#------------------------------------------------------------------------------
# is_valid_dir
#------------------------------------------------------------------------------
is_valid_dir()
{
# Return value 'is_valid_dir' defined if valid, otherwise undefined.
# Passed variable will ALWAYS be updated (normalized) REGARDLESS of
# whether it is determined to be valid or not.
# Use quiet option to preserve rc/maxrc value if only interested in
# the 'is_valid_dir' return value. Otherwise an error message will
# be issued and 'rc' & 'maxrc' will be updated if directory invalid.
is_valid_dir=1
local var_name=$1
local var_value=$2
local quiet=$3
local norm_val=""
normalize_dir norm_val "$var_value"
fullpath "$norm_val"
if [[ -z $fullpath ]]; then
is_valid_dir=""
if [[ -z $quiet ]]; then
errmsg "ERROR: $var_name \"$var_value\" not found."
fi
else
norm_val=$fullpath
isdir "$norm_val"
if [[ -z $isdir ]]; then
is_valid_dir=""
if [[ -z $quiet ]]; then
errmsg "ERROR: $var_name \"$var_value\" is not a directory."
fi
fi
fi
eval $var_name="\$norm_val"
}
#------------------------------------------------------------------------------
# isalphanum
#------------------------------------------------------------------------------
isalphanum()
{
# isalphanum $foo; if [[ -n $isalphanum ]]; then isalphanum; else notalphanum; fi
isalphanum=""
if [[ "$1" =~ [a-zA-Z0-9]+ ]]; then
# (ensure first char is letter not number)
if [[ "${1:0:1}" =~ [a-zA-Z0-9] ]]; then
isalphanum="1"
fi
fi
}
#------------------------------------------------------------------------------
# get_num_cpus
#------------------------------------------------------------------------------
get_num_cpus()
{
CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null` # Linux
[ -z "$CPUS" ] && CPUS=`getconf NPROCESSORS_ONLN` # FreeBSD
[ -z "$CPUS" ] && CPUS=`ksh93 -c 'getconf NPROCESSORS_ONLN'` # Solaris
[ -z "$CPUS" ] && CPUS=1 # Default
}
#------------------------------------------------------------------------------
# get_cache_value
#------------------------------------------------------------------------------
get_cache_value()
{
local _cachefile="$1"
local _varname="$2"
cache_value=""
if [ -f $_cachefile ]; then
local _cache_re="(^.*):(.*)=(.*)$"
local _orig_IFS="$IFS"
IFS=""
while read -r _stmt || [[ -n "$_stmt" ]]; do
if [[ $_stmt =~ $_cache_re ]] && \
[[ ${BASH_REMATCH[1]} == $_varname ]]; then
cache_value=${BASH_REMATCH[3]}
break
fi
done < "$_cachefile"
IFS="$_orig_IFS"
fi
}
#------------------------------------------------------------------------------
# (parse_args helper)
#------------------------------------------------------------------------------
isopt()
{
# isopt $foo; if [[ -n $isopt ]]; then isopt; else notopt; fi
# Examines first character of passed value to determine
# whether it's the next option or not. If it starts with
# a '-' then it's the next option. Else it's not.
isopt="$1"
if [[ -n $isopt ]] && \
[[ ${isopt:0:1} != "-" ]]; then
isopt=""
fi
}
#------------------------------------------------------------------------------
# (parse_args helper)
#------------------------------------------------------------------------------
parseopt()
{
# This function expects the next two command line arguments
# $1 and $2 to be passed to it. $1 is expected to be a true
# option (its first character should start with a '-' dash).
#
# Both arguments are then examined and the results are placed
# into the following variables:
#
# $opt The current option as-is (e.g. "-d")
#
# $optname Just the characters following the '-' (e.g. "d")
#
# $optval The next token following the option (i.e. $2),
# but only if it's not an option itself (not isopt).
# Otherwise optval is set to empty/undefined since
# it is not actually an option value but is instead
# the next option.
opt="$1"
optval="$2"
optname="${opt:1}"
local _saved_isopt="$isopt"
isopt "$optval"
local _optval_isopt="$isopt"
isopt="$_saved_isopt"
if [[ -n $_optval_isopt ]]; then
optval=""
fi
}
#------------------------------------------------------------------------------
# parse_args
#------------------------------------------------------------------------------
parse_args()
{
rc=0
push_shopt -s nocasematch
if [[ $1 == "?" ]]; then help; fi
if [[ $1 == "-?" ]]; then help; fi
if [[ $1 == "-h" ]]; then help; fi
if [[ $1 == "--help" ]]; then help; fi
load_tools
# Abort if required tool(s) not found
if (( $rc != 0 )); then quit; fi
# Parse command line options...
while [[ -n $1 ]]
do
cmdline_arg="$1"
isopt "$1"
parseopt "$1" "$2"
shift 1
if [[ -n $isopt ]]; then
case "$optname" in
# ------------------------------------
# Options that require an argument
# ------------------------------------
d)
if [[ -z $optval ]]; then parse_missing_optarg; else
pkgdir="$optval"
shift 1 # (consume this option's value)
fi
;;
n)
if [[ -z $optval ]]; then parse_missing_optarg; else
pkgname="$optval"
shift 1 # (consume this option's value)
fi
;;
a)
if [[ -z $optval ]]; then parse_missing_optarg; else
arch="$optval"
shift 1 # (consume this option's value)
fi
;;
c)
if [[ -z $optval ]]; then parse_missing_optarg; else
config="$optval"
shift 1 # (consume this option's value)
fi
;;
m)
if [[ -z $optval ]]; then parse_missing_optarg; else
cpu="$optval"
shift 1 # (consume this option's value)
fi
;;
# ------------------------------------
# Options whose argument is optional
# ------------------------------------
i)
install=1
if [[ -n $optval ]]; then
instdir="$optval"
shift 1 # (consume this option's value)
fi
;;
# ------------------------------------
# Options that are just switches
# ------------------------------------
h)
help
;;
u)
uninstall=1
;;
r)
rebuild=1
;;
f)
force=1
;;
all)
bldall=1
;;
su)
sudo="sudo"
;;
# ------------------------------------
# (none of the above)
# ------------------------------------
*) # (check if "--xxxx" long option)
isopt "$optname"
if [[ -z $isopt ]]; then
parse_unknown_opt
else
# ------------------------------------
# Long "--xxxxx" option parsing...
# We use $1 here (instead of $2)
# since shift 1 was already done.
# ------------------------------------
parseopt "$optname" "$1"
case "$optname" in
# ------------------------------------
# Options that require an argument
# ------------------------------------
pkgdir)
if [[ -z $optval ]]; then parse_missing_optarg; else
pkgdir="$optval"
shift 1 # (consume this option's value)
fi
;;
pkgname)
if [[ -z $optval ]]; then parse_missing_optarg; else
pkgname="$optval"
shift 1 # (consume this option's value)
fi
;;
arch)
if [[ -z $optval ]]; then parse_missing_optarg; else
arch="$optval"
shift 1 # (consume this option's value)
fi
;;
config)
if [[ -z $optval ]]; then parse_missing_optarg; else
config="$optval"
shift 1 # (consume this option's value)
fi
;;
cpu)
if [[ -z $optval ]]; then parse_missing_optarg; else
cpu="$optval"
shift 1 # (consume this option's value)
fi
;;
# ------------------------------------
# Options whose argument is optional
# ------------------------------------
install)
install=1
if [[ -n $optval ]]; then
instdir="$optval"
shift 1 # (consume this option's value)
fi
;;
uninstall)
uninstall=1
if [[ -n $optval ]]; then
uinstdir="$optval"
shift 1 # (consume this option's value)
fi
;;
# ------------------------------------
# Options that are just switches
# ------------------------------------
help)
help
;;
rebuild)
rebuild=1
;;
force)
force=1
;;
all)
bldall=1
;;
sudo)
sudo="sudo"
;;
version)
errmsg "$nx0 version $_versnum ($_versdate)"
;;
# ------------------------------------
# (none of the above)
# ------------------------------------
*)
parse_unknown_opt
;;
esac
fi
;;
esac
else
# ------------------------------------
# Must be a positional option.
# Set optname identical to opt
# and empty meaningless optval.
# ------------------------------------
optname="$opt"
optval=""
# We do not have any positional arguments...
parse_unknown_arg
# ...but if we did, this is how we'd do it.
if [ ]; then # (beg disabled code block)
if [[ -z $positional_argument_1 ]]; then
positional_argument_1="$opt"
else
if [[ -z $positional_argument_2 ]]; then
positional_argument_2="$opt"
else
if [[ -z $positional_argument_3 ]]; then
positional_argument_3="$opt"
else
parse_unknown_arg
fi
fi
fi
fi # (end disabled code block)
fi
done
pop_shopt
trace "Debug: values after parsing:"
trace ""
trace "pkgdir = \"$pkgdir\""
trace "pkgname = \"$pkgname\""
trace "install = \"$install\""
trace "instdir = \"$instdir\""
trace "uninstall = \"$uninstall\""
trace "uinstdir = \"$uinstdir\""
trace "cpu = \"$cpu\""
trace "arch = \"$arch\""
trace "config = \"$config\""
trace "rebuild = \"$rebuild\""
trace "force = \"$force\""
trace "bldall = \"$bldall\""
trace ""
if (( $rc != 0 )); then quit; fi
validate_args
}
#------------------------------------------------------------------------------
# (parse_args helper)
#------------------------------------------------------------------------------
parse_unknown_arg()
{
errmsg "ERROR: Unrecognized/extraneous argument '$cmdline_arg'."
}
parse_unknown_opt()
{
errmsg "ERROR: Unknown/unsupported option '$cmdline_arg'."
}
parse_missing_optarg()
{
errmsg "ERROR: Option '$cmdline_arg' is missing its required argument."
}
#------------------------------------------------------------------------------
# validate_args
#------------------------------------------------------------------------------
validate_args()
{
push_shopt -s nocasematch
#----------------------------------------------------------------------------
# Validate pkgdir
# Use default pkgdir if pkgdir is not defined yet
if [[ -z $pkgdir ]]; then
pkgdir="$def_pkgdir"
fi
is_valid_dir pkgdir "$pkgdir"
if (( $rc == 0 )); then
pushd "$pkgdir" >/dev/null 2>&1
fullpath "CMakeLists.txt"
popd >/dev/null 2>&1
if [[ -z $fullpath ]]; then
errmsg "ERROR: File \"CMakeLists.txt\" not found in pkgdir."
pkgdir=""
fi
fi
#----------------------------------------------------------------------------
# Validate pkgname
while true; do
if [[ $pkgname == "." ]]; then
# derive pkgname from current directory
pkgname="$(basename "$(pwd)")"
pkgname="${pkgname//[^a-zA-Z0-9]}"
else
if [[ -z $pkgname ]]; then
# derive pkgname from pkgdir
pkgname="$(basename "$pkgdir")"
pkgname="${pkgname//[^a-zA-Z0-9]}"
fi
fi
# validate specific pkgname
isalphanum "$pkgname"
if [[ -z $isalphanum ]]; then
errmsg "ERROR: Invalid pkgname \"$pkgname\"."
break
fi
break
done
#----------------------------------------------------------------------------
# Validate instdir
if [[ -n $instdir ]]; then
is_valid_dir instdir "$instdir"
# (if invalid, errmsg already issued and rc/maxrc updated)
fi
#----------------------------------------------------------------------------
# Validate uinstdir
if [[ -n $uinstdir ]]; then
is_valid_dir uinstdir "$uinstdir"
# (if invalid, errmsg already issued and rc/maxrc updated)
fi
#----------------------------------------------------------------------------
# Validate build...
# Ignore specified arch and config values if bldall was specified
if [[ -n $bldall ]]; then
if [[ -n $arch ]] && [[ $arch != "BOTH" ]]; then
logmsg "WARNING: arch ignored due to 'all' option."
arch=""
fi
if [[ -n $config ]] && [[ $config != "BOTH" ]]; then
logmsg "WARNING: config ignored due to 'all' option."
config=""
fi
else # (use default values if not specified)
if [[ -z $arch ]]; then
arch="$def_arch"
fi
if [[ -z $config ]]; then
config="$def_config"
fi
fi
# Validate arch and config if not bldall
if [[ -z $bldall ]]; then
if [[ $arch != "32" ]] && \
[[ $arch != "64" ]] && \
[[ $arch != "BOTH" ]]; then
errmsg "ERROR: Invalid architecture \"$arch\""
fi
if [[ "$config" != "Debug" ]] && \
[[ "$config" != "Release" ]] && \
[[ "$config" != "BOTH" ]]; then
errmsg "ERROR: Invalid configuration \"$config\""
fi
fi
# Both 'arch' and 'config' == "BOTH" implies 'bldall'
if [[ $arch == "BOTH" ]] && \
[[ $config == "BOTH" ]]; then
arch=""
config=""
bldall=1
fi
# Validate 'cpu' option
if [[ -z $cpu ]]; then
cpu="x86"
fi
if [[ "$cpu" != "aarch64" ]] && \
[[ "$cpu" != "arm" ]] && \
[[ "$cpu" != "i686" ]] && \
[[ "$cpu" != "mips" ]] && \
[[ "$cpu" != "ppc" ]] && \
[[ "$cpu" != "s390x" ]] && \
[[ "$cpu" != "sparc" ]] && \
[[ "$cpu" != "x86" ]] && \
[[ "$cpu" != "xscale" ]] && \
[[ "$cpu" != "unknown" ]]; then
errmsg "ERROR: Invalid machine cpu \"$cpu\""
fi