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get.sh
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#!/usr/bin/env bash
[[ "$PATH" != *"/usr/local/bin"* ]] && [[ -e "/usr/local/bin" ]] && export PATH=/usr/local/bin:"$PATH"
[[ "$PATH" != *"/usr/bin"* ]] && [[ -e "/usr/bin" ]] && export PATH=/usr/bin:"$PATH"
[[ "$PATH" != *"/bin:"* ]] && [[ -e "/bin" ]] && export PATH=/bin:"$PATH"
# Rotten.
_test() { false; }
_setup() { false; }
_typeDep() { true; }
_getDep() { true; }
_wantGetDep() { true; }
_if_cygwin() { false; }
_user_log-ub() { false; }
_collect() { false; }
_enter() { false; }
#### from messaging.sh
_color_demo() {
_messagePlain_request _color_demo
_messagePlain_nominal _color_demo
_messagePlain_probe _color_demo
_messagePlain_probe_expr _color_demo
_messagePlain_probe_var ubiquitousBashIDshort
_messagePlain_good _color_demo
_messagePlain_warn _color_demo
_messagePlain_bad _color_demo
_messagePlain_probe_cmd echo _color_demo
_messagePlain_probe_quoteAddDouble echo _color_demo
_messagePlain_probe_quoteAddSingle echo _color_demo
_messageNormal _color_demo
_messageError _color_demo
_messageDELAYipc _color_demo
_messageProcess _color_demo
}
_color_end() {
( [[ "$current_scriptedIllustrator_markup" == "html" ]] || [[ "$current_scriptedIllustrator_markup" == "mediawiki" ]] ) && echo -e -n '</span>'
[[ "$current_scriptedIllustrator_markup" == "" ]] && echo -e -n ' \E[0m'
}
_color_begin_request() {
echo -e -n '\E[0;35m '
}
_color_begin_nominal() {
echo -e -n '\E[0;36m '
}
_color_begin_probe() {
echo -e -n '\E[0;34m '
}
_color_begin_probe_noindent() {
echo -e -n '\E[0;34m'
}
_color_begin_good() {
echo -e -n '\E[0;32m '
}
_color_begin_warn() {
echo -e -n '\E[1;33m '
}
_color_begin_bad() {
echo -e -n '\E[0;31m '
}
_color_begin_Normal() {
echo -e -n '\E[1;32;46m '
}
_color_begin_Error() {
echo -e -n '\E[1;33;41m '
}
_color_begin_DELAYipc() {
echo -e -n '\E[1;33;47m '
}
#Purple. User must do something manually to proceed. NOT to be used for dependency installation requests - use probe, bad, and fail statements for that.
_messagePlain_request() {
_color_begin_request
echo -n "$@"
_color_end
echo
return 0
}
#Cyan. Harmless status messages.
#"generic/ubiquitousheader.sh"
_messagePlain_nominal() {
_color_begin_nominal
echo -n "$@"
_color_end
echo
return 0
}
#Blue. Diagnostic instrumentation.
#"generic/ubiquitousheader.sh"
_messagePlain_probe() {
_color_begin_probe
#_color_begin_probe_noindent
echo -n "$@"
_color_end
echo
return 0
}
_messagePlain_probe_noindent() {
#_color_begin_probe
_color_begin_probe_noindent
echo -n "$@"
_color_end
echo
return 0
}
#Blue. Diagnostic instrumentation.
#"generic/ubiquitousheader.sh"
_messagePlain_probe_expr() {
_color_begin_probe
echo -e -n "$@"
_color_end
echo
return 0
}
#Blue. Diagnostic instrumentation.
#"generic/ubiquitousheader.sh"
_messagePlain_probe_var() {
_color_begin_probe
echo -n "$1"'= '
eval echo -e -n \$"$1"
_color_end
echo
return 0
}
_messageVar() {
_messagePlain_probe_var "$@"
}
#Green. Working as expected.
#"generic/ubiquitousheader.sh"
_messagePlain_good() {
_color_begin_good
echo -n "$@"
_color_end
echo
return 0
}
#Yellow. May or may not be a problem.
#"generic/ubiquitousheader.sh"
_messagePlain_warn() {
_color_begin_warn
echo -n "$@"
_color_end
echo
return 0
}
#Red. Will result in missing functionality, reduced performance, etc, but not necessarily program failure overall.
_messagePlain_bad() {
_color_begin_bad
echo -n "$@"
_color_end
echo
return 0
}
#Blue. Diagnostic instrumentation.
#Prints "$@" and runs "$@".
# WARNING: Use with care.
_messagePlain_probe_cmd() {
_color_begin_probe
_safeEcho "$@"
_color_end
echo
"$@"
return
}
_messageCMD() {
_messagePlain_probe_cmd "$@"
}
#Blue. Diagnostic instrumentation.
#Prints "$@" with quotes around every parameter.
_messagePlain_probe_quoteAddDouble() {
_color_begin_probe
_safeEcho_quoteAddDouble "$@"
_color_end
echo
return
}
_messagePlain_probe_quoteAdd() {
_messagePlain_probe_quoteAddDouble "$@"
}
#Blue. Diagnostic instrumentation.
#Prints "$@" with single quotes around every parameter.
_messagePlain_probe_quoteAddSingle() {
_color_begin_probe
_safeEcho_quoteAddSingle "$@"
_color_end
echo
return
}
#Blue. Diagnostic instrumentation.
#Prints "$@" and runs "$@".
# WARNING: Use with care.
_messagePlain_probe_cmd_quoteAdd() {
_messagePlain_probe_quoteAdd "$@"
"$@"
return
}
_messageCMD_quoteAdd() {
_messagePlain_probe_cmd_quoteAdd "$@"
}
#Demarcate major steps.
_messageNormal() {
_color_begin_Normal
echo -n "$@"
_color_end
echo
return 0
}
#Demarcate major failures.
_messageError() {
_color_begin_Error
echo -n "$@"
_color_end
echo
return 0
}
#Demarcate need to fetch/generate dependency automatically - not a failure condition.
_messageNEED() {
_messageNormal "NEED"
#echo " NEED "
}
#Demarcate have dependency already, no need to fetch/generate.
_messageHAVE() {
_messageNormal "HAVE"
#echo " HAVE "
}
_messageWANT() {
_messageNormal "WANT"
#echo " WANT "
}
#Demarcate where PASS/FAIL status cannot be absolutely proven. Rarely appropriate - usual best practice is to simply progress to the next major step.
_messageDONE() {
_messageNormal "DONE"
#echo " DONE "
}
_messagePASS() {
_messageNormal "PASS"
#echo " PASS "
}
#Major failure. Program stopped.
_messageFAIL() {
_messageError "FAIL"
#echo " FAIL "
_stop 1
return 0
}
_messageWARN() {
echo
echo "$@"
return 0
}
# Demarcate *any* delay performed to allow 'InterProcess-Communication' connections (perhaps including at least some network or serial port servers).
_messageDELAYipc() {
_color_begin_DELAYipc
echo -e -n 'delay: InterProcess-Communication'
_color_end
echo
}
_messageProcess() {
local processString
processString="$1""..."
local processStringLength
processStringLength=${#processString}
local currentIteration
currentIteration=0
local padLength
let padLength=40-"$processStringLength"
[[ "$processStringLength" -gt "38" ]] && _messageNormal "$processString" && return 0
_color_begin_Normal
echo -n "$processString"
_color_end
while [[ "$currentIteration" -lt "$padLength" ]]
do
echo -e -n ' '
let currentIteration="$currentIteration"+1
done
return 0
}
#echo -n
_safeEcho() {
printf '%s' "$1"
shift
[[ "$@" == "" ]] && return 0
local currentArg
for currentArg in "$@"
do
printf '%s' " "
printf '%s' "$currentArg"
done
return 0
}
#echo
_safeEcho_newline() {
_safeEcho "$@"
printf '\n'
}
_safeEcho_quoteAddSingle() {
# https://tldp.org/LDP/Bash-Beginners-Guide/html/sect_09_07.html
while (( "$#" )); do
_safeEcho ' '"'""$1""'"
shift
done
}
_safeEcho_quoteAddSingle_newline() {
_safeEcho_quoteAddSingle "$@"
printf '\n'
}
_safeEcho_quoteAddDouble() {
#https://stackoverflow.com/questions/1668649/how-to-keep-quotes-in-bash-arguments
local currentCommandStringPunctuated
local currentCommandStringParameter
for currentCommandStringParameter in "$@"; do
currentCommandStringParameter="${currentCommandStringParameter//\\/\\\\}"
currentCommandStringPunctuated="$currentCommandStringPunctuated \"${currentCommandStringParameter//\"/\\\"}\""
done
_safeEcho "$currentCommandStringPunctuated"
}
_safeEcho_quoteAddDouble_newline() {
_safeEcho_quoteAddDouble "$@"
printf '\n'
}
#### from messaging.sh
##Parameters
#"--shell", ""
#"--profile"
#"--parent", "--embed", "--return", "--devenv"
#"--call", "--script" "--bypass"
#if [[ "$ub_import" != "" ]]
#then
#[[ "$ub_import" != "" ]] && export ub_import="" && unset ub_import
#[[ "$importScriptLocation" != "" ]] && export importScriptLocation= && unset importScriptLocation
#[[ "$importScriptFolder" != "" ]] && export importScriptFolder= && unset importScriptFolder
#fi
#[[ "$ub_import" != "" ]] && export ub_import="" && unset ub_import
#[[ "$ub_import_param" != "" ]] && export ub_import_param="" && unset ub_import_param
#[[ "$ub_import_script" != "" ]] && export ub_import_script="" && unset ub_import_script
#[[ "$ub_loginshell" != "" ]] && export ub_loginshell="" && unset ub_loginshell
ub_import=
ub_import_param=
ub_import_script=
ub_loginshell=
# ATTENTION: Apparently (Portable) Cygwin Bash interprets correctly.
[[ "${BASH_SOURCE[0]}" != "${0}" ]] && ub_import="true"
( [[ "$1" == '--profile' ]] || [[ "$1" == '--script' ]] || [[ "$1" == '--call' ]] || [[ "$1" == '--return' ]] || [[ "$1" == '--devenv' ]] || [[ "$1" == '--shell' ]] || [[ "$1" == '--bypass' ]] || [[ "$1" == '--parent' ]] || [[ "$1" == '--embed' ]] || [[ "$1" == '--compressed' ]] ) && ub_import_param="$1" && shift
( [[ "$0" == "/bin/bash" ]] || [[ "$0" == "-bash" ]] || [[ "$0" == "/usr/bin/bash" ]] || [[ "$0" == "bash" ]] ) && ub_loginshell="true" #Importing ubiquitous bash into a login shell with "~/.bashrc" is the only known cause for "_getScriptAbsoluteLocation" to return a result such as "/bin/bash".
[[ "$ub_import" == "true" ]] && ! [[ "$ub_loginshell" == "true" ]] && ub_import_script="true"
_messagePlain_probe_expr '$0= '"$0"'\n ''$1= '"$1"'\n ''ub_import= '"$ub_import"'\n ''ub_import_param= '"$ub_import_param"'\n ''ub_import_script= '"$ub_import_script"'\n ''ub_loginshell= '"$ub_loginshell" | _user_log-ub
# DANGER Prohibited import from login shell. Use _setupUbiquitous, call from another script, or manually set importScriptLocation.
# WARNING Import from shell can be detected. Import from script cannot. Asserting that script has been imported is possible. Asserting that script has not been imported is not possible. Users may be protected from interactive mistakes. Script developers are NOT protected.
if [[ "$ub_import_param" == "--profile" ]]
then
if ( [[ "$profileScriptLocation" == "" ]] || [[ "$profileScriptFolder" == "" ]] ) && _messagePlain_bad 'import: profile: missing: profileScriptLocation, missing: profileScriptFolder' | _user_log-ub
then
return 1 >/dev/null 2>&1
exit 1
fi
elif ( [[ "$ub_import_param" == "--parent" ]] || [[ "$ub_import_param" == "--embed" ]] || [[ "$ub_import_param" == "--return" ]] || [[ "$ub_import_param" == "--devenv" ]] )
then
if ( [[ "$scriptAbsoluteLocation" == "" ]] || [[ "$scriptAbsoluteFolder" == "" ]] || [[ "$sessionid" == "" ]] ) && _messagePlain_bad 'import: parent: missing: scriptAbsoluteLocation, missing: scriptAbsoluteFolder, missing: sessionid' | _user_log-ub
then
return 1 >/dev/null 2>&1
exit 1
fi
elif [[ "$ub_import_param" == "--call" ]] || [[ "$ub_import_param" == "--script" ]] || [[ "$ub_import_param" == "--bypass" ]] || [[ "$ub_import_param" == "--shell" ]] || [[ "$ub_import_param" == "--compressed" ]] || ( [[ "$ub_import" == "true" ]] && [[ "$ub_import_param" == "" ]] )
then
if ( [[ "$importScriptLocation" == "" ]] || [[ "$importScriptFolder" == "" ]] ) && _messagePlain_bad 'import: call: missing: importScriptLocation, missing: importScriptFolder' | _user_log-ub
then
return 1 >/dev/null 2>&1
exit 1
fi
elif [[ "$ub_import" != "true" ]] #"--shell", ""
then
_messagePlain_warn 'import: undetected: cannot determine if imported' | _user_log-ub
true #no problem
else #FAIL, implies [[ "$ub_import" == "true" ]]
_messagePlain_bad 'import: fall: fail' | _user_log-ub
return 1 >/dev/null 2>&1
exit 1
fi
_sep() {
echo '________________________________________'
}
#####Utilities
_test_getAbsoluteLocation_sequence() {
_start scriptLocal_mkdir_disable
local testScriptLocation_actual
local testScriptLocation
local testScriptFolder
local testLocation_actual
local testLocation
local testFolder
#script location/folder work directories
mkdir -p "$safeTmp"/sAL_dir
cp "$scriptAbsoluteLocation" "$safeTmp"/sAL_dir/script
ln -s "$safeTmp"/sAL_dir/script "$safeTmp"/sAL_dir/lnk
[[ ! -e "$safeTmp"/sAL_dir/script ]] && _stop 1
[[ ! -e "$safeTmp"/sAL_dir/lnk ]] && _stop 1
ln -s "$safeTmp"/sAL_dir "$safeTmp"/sAL_lnk
[[ ! -e "$safeTmp"/sAL_lnk/script ]] && _stop 1
[[ ! -e "$safeTmp"/sAL_lnk/lnk ]] && _stop 1
#_getScriptAbsoluteLocation
testScriptLocation_actual=$("$safeTmp"/sAL_dir/script _getScriptAbsoluteLocation)
[[ "$safeTmp"/sAL_dir/script != "$testScriptLocation_actual" ]] && echo 'crit: "$safeTmp"/sAL_dir/script != "$testScriptLocation_actual"' && _stop 1
testScriptLocation=$("$safeTmp"/sAL_dir/script _getScriptAbsoluteLocation)
[[ "$testScriptLocation" != "$testScriptLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_dir/script' && _stop 1
testScriptLocation=$("$safeTmp"/sAL_dir/lnk _getScriptAbsoluteLocation)
[[ "$testScriptLocation" != "$testScriptLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_dir/lnk' && _stop 1
testScriptLocation=$("$safeTmp"/sAL_lnk/script _getScriptAbsoluteLocation)
[[ "$testScriptLocation" != "$testScriptLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_lnk/script' && _stop 1
testScriptLocation=$("$safeTmp"/sAL_lnk/lnk _getScriptAbsoluteLocation)
[[ "$testScriptLocation" != "$testScriptLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_lnk/lnk' && _stop 1
#_getScriptAbsoluteFolder
testScriptFolder_actual=$("$safeTmp"/sAL_dir/script _getScriptAbsoluteFolder)
[[ "$safeTmp"/sAL_dir != "$testScriptFolder_actual" ]] && echo 'crit: "$safeTmp"/sAL_dir != "$testScriptFolder_actual"' && _stop 1
testScriptFolder=$("$safeTmp"/sAL_dir/script _getScriptAbsoluteFolder)
[[ "$testScriptFolder" != "$testScriptFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_dir/script' && _stop 1
testScriptFolder=$("$safeTmp"/sAL_dir/lnk _getScriptAbsoluteFolder)
[[ "$testScriptFolder" != "$testScriptFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_dir/lnk' && _stop 1
testScriptFolder=$("$safeTmp"/sAL_lnk/script _getScriptAbsoluteFolder)
[[ "$testScriptFolder" != "$testScriptFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_lnk/script' && _stop 1
testScriptFolder=$("$safeTmp"/sAL_lnk/lnk _getScriptAbsoluteFolder)
[[ "$testScriptFolder" != "$testScriptFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_lnk/lnk' && _stop 1
#_getAbsoluteLocation
testLocation_actual=$("$safeTmp"/sAL_dir/script _getAbsoluteLocation "$safeTmp"/sAL_dir/script)
[[ "$safeTmp"/sAL_dir/script != "$testLocation_actual" ]] && echo 'crit: "$safeTmp"/sAL_dir/script != "$testLocation_actual"' && _stop 1
testLocation=$("$safeTmp"/sAL_dir/script _getAbsoluteLocation "$safeTmp"/sAL_dir/script)
[[ "$testLocation" != "$testLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_dir/script' && _stop 1
testLocation=$("$safeTmp"/sAL_dir/lnk _getAbsoluteLocation "$safeTmp"/sAL_dir/lnk)
[[ "$testLocation" != "$testLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_dir/lnk' && _stop 1
testLocation=$("$safeTmp"/sAL_lnk/script _getAbsoluteLocation "$safeTmp"/sAL_lnk/script)
[[ "$testLocation" != "$testLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_lnk/script' && _stop 1
testLocation=$("$safeTmp"/sAL_lnk/lnk _getAbsoluteLocation "$safeTmp"/sAL_lnk/lnk)
[[ "$testLocation" != "$testLocation_actual" ]] && echo 'crit: ! location "$safeTmp"/sAL_lnk/lnk' && _stop 1
#_getAbsoluteFolder
testFolder_actual=$("$safeTmp"/sAL_dir/script _getAbsoluteFolder "$safeTmp"/sAL_dir/script)
[[ "$safeTmp"/sAL_dir != "$testFolder_actual" ]] && echo 'crit: "$safeTmp"/sAL_dir != "$testFolder_actual"' && _stop 1
testFolder=$("$safeTmp"/sAL_dir/script _getAbsoluteFolder "$safeTmp"/sAL_dir/script)
[[ "$testFolder" != "$testFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_dir/script' && _stop 1
testFolder=$("$safeTmp"/sAL_dir/lnk _getAbsoluteFolder "$safeTmp"/sAL_dir/script)
[[ "$testFolder" != "$testFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_dir/lnk' && _stop 1
testFolder=$("$safeTmp"/sAL_lnk/script _getAbsoluteFolder "$safeTmp"/sAL_lnk/script)
[[ "$testFolder" != "$testFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_lnk/script' && _stop 1
testFolder=$("$safeTmp"/sAL_lnk/lnk _getAbsoluteFolder "$safeTmp"/sAL_lnk/script)
[[ "$testFolder" != "$testFolder_actual" ]] && echo 'crit: ! folder "$safeTmp"/sAL_lnk/lnk' && _stop 1
_stop
}
_test_getAbsoluteLocation() {
"$scriptAbsoluteLocation" _test_getAbsoluteLocation_sequence "$@"
[[ "$?" != "0" ]] && _stop 1
return 0
}
#https://unix.stackexchange.com/questions/293892/realpath-l-vs-p
_test_realpath_L_s_sequence() {
_start scriptLocal_mkdir_disable
local functionEntryPWD
functionEntryPWD="$PWD"
local testPath_actual
local testPath
mkdir -p "$safeTmp"/src
mkdir -p "$safeTmp"/sub
ln -s "$safeTmp"/src "$safeTmp"/sub/lnk
echo > "$safeTmp"/sub/point
ln -s "$safeTmp"/sub/point "$safeTmp"/sub/lnk/ref
#correct
#"$safeTmp"/sub/ref
#realpath -L "$safeTmp"/sub/lnk/../ref
#default, wrong
#"$safeTmp"/ref
#realpath -P "$safeTmp"/sub/lnk/../ref
#echo -n '>'
#readlink -f "$safeTmp"/sub/lnk/../ref
testPath_actual="$safeTmp"/sub/ref
cd "$functionEntryPWD"
testPath=$(_realpath_L "$safeTmp"/sub/lnk/../ref)
[[ "$testPath" != "$testPath_actual" ]] && echo 'crit: ! _realpath_L' && _stop 1
cd "$safeTmp"
testPath=$(_realpath_L ./sub/lnk/../ref)
[[ "$testPath" != "$testPath_actual" ]] && echo 'crit: ! _realpath_L' && _stop 1
#correct
#"$safeTmp"/sub/lnk/ref
#realpath -L -s "$safeTmp"/sub/lnk/ref
#default, wrong for some use cases
#"$safeTmp"/sub/point
#realpath -L "$safeTmp"/sub/lnk/ref
#echo -n '>'
#readlink -f "$safeTmp"/sub/lnk/ref
testPath_actual="$safeTmp"/sub/lnk/ref
cd "$functionEntryPWD"
testPath=$(_realpath_L_s "$safeTmp"/sub/lnk/ref)
[[ "$testPath" != "$testPath_actual" ]] && echo 'crit: ! _realpath_L_s' && _stop 1
cd "$safeTmp"
testPath=$(_realpath_L_s ./sub/lnk/ref)
[[ "$testPath" != "$testPath_actual" ]] && echo 'crit: ! _realpath_L_s' && _stop 1
cd "$functionEntryPWD"
_stop
}
_test_realpath_L_s() {
#Optional safety check. Nonconformant realpath solution should be caught by synthetic test cases.
#_compat_realpath
# ! [[ -e "$compat_realpath_bin" ]] && [[ "$compat_realpath_bin" != "" ]] && echo 'crit: missing: realpath' && _stop 1
"$scriptAbsoluteLocation" _test_realpath_L_s_sequence "$@"
[[ "$?" != "0" ]] && _stop 1
return 0
}
_test_realpath_L() {
_test_realpath_L_s "$@"
}
_test_realpath() {
_test_realpath_L_s "$@"
}
_test_readlink_f_sequence() {
_start scriptLocal_mkdir_disable
echo > "$safeTmp"/realFile
ln -s "$safeTmp"/realFile "$safeTmp"/linkA
ln -s "$safeTmp"/linkA "$safeTmp"/linkB
local currentReadlinkResult
currentReadlinkResult=$(readlink -f "$safeTmp"/linkB)
local currentReadlinkResultBasename
currentReadlinkResultBasename=$(basename "$currentReadlinkResult")
if [[ "$currentReadlinkResultBasename" != "realFile" ]]
then
#echo 'fail: readlink -f'
_stop 1
fi
_stop 0
}
_test_readlink_f() {
if ! "$scriptAbsoluteLocation" _test_readlink_f_sequence
then
# May fail through MSW network drive provided by '_userVBox' .
uname -a | grep -i cygwin > /dev/null 2>&1 && echo 'warn: broken (cygwin): readlink -f' && return 1
echo 'fail: readlink -f'
_stop 1
fi
return 0
}
_compat_realpath() {
[[ -e "$compat_realpath_bin" ]] && [[ "$compat_realpath_bin" != "" ]] && return 0
#Workaround, Mac. See https://github.com/mirage335/ubiquitous_bash/issues/1 .
export compat_realpath_bin=/opt/local/libexec/gnubin/realpath
[[ -e "$compat_realpath_bin" ]] && [[ "$compat_realpath_bin" != "" ]] && return 0
export compat_realpath_bin=$(type -p realpath)
[[ -e "$compat_realpath_bin" ]] && [[ "$compat_realpath_bin" != "" ]] && return 0
export compat_realpath_bin=/bin/realpath
[[ -e "$compat_realpath_bin" ]] && [[ "$compat_realpath_bin" != "" ]] && return 0
export compat_realpath_bin=/usr/bin/realpath
[[ -e "$compat_realpath_bin" ]] && [[ "$compat_realpath_bin" != "" ]] && return 0
# ATTENTION
# Command "readlink -f" or text processing can be used as fallbacks to obtain absolute path
# https://stackoverflow.com/questions/3572030/bash-script-absolute-path-with-osx
export compat_realpath_bin=""
return 1
}
_compat_realpath_run() {
! _compat_realpath && return 1
"$compat_realpath_bin" "$@"
}
_realpath_L() {
if ! _compat_realpath_run -L . > /dev/null 2>&1
then
readlink -f "$@"
return
fi
realpath -L "$@"
}
_realpath_L_s() {
if ! _compat_realpath_run -L . > /dev/null 2>&1
then
readlink -f "$@"
return
fi
realpath -L -s "$@"
}
_cygwin_translation_rootFileParameter() {
if ! uname -a | grep -i cygwin > /dev/null 2>&1
then
echo "$0"
return 0
fi
local currentScriptLocation
currentScriptLocation="$0"
# CAUTION: Lookup table is used to avoid pulling in any additional dependencies. Additionally, Cygwin apparently may ignore letter case of path .
[[ "$currentScriptLocation" == 'A:'* ]] && currentScriptLocation=${currentScriptLocation/A\://cygdrive/a} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'B:'* ]] && currentScriptLocation=${currentScriptLocation/B\://cygdrive/b} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'C:'* ]] && currentScriptLocation=${currentScriptLocation/C\://cygdrive/c} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'D:'* ]] && currentScriptLocation=${currentScriptLocation/D\://cygdrive/d} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'E:'* ]] && currentScriptLocation=${currentScriptLocation/E\://cygdrive/e} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'F:'* ]] && currentScriptLocation=${currentScriptLocation/F\://cygdrive/f} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'G:'* ]] && currentScriptLocation=${currentScriptLocation/G\://cygdrive/g} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'H:'* ]] && currentScriptLocation=${currentScriptLocation/H\://cygdrive/h} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'I:'* ]] && currentScriptLocation=${currentScriptLocation/I\://cygdrive/i} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'J:'* ]] && currentScriptLocation=${currentScriptLocation/J\://cygdrive/j} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'K:'* ]] && currentScriptLocation=${currentScriptLocation/K\://cygdrive/k} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'L:'* ]] && currentScriptLocation=${currentScriptLocation/L\://cygdrive/l} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'M:'* ]] && currentScriptLocation=${currentScriptLocation/M\://cygdrive/m} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'N:'* ]] && currentScriptLocation=${currentScriptLocation/N\://cygdrive/n} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'O:'* ]] && currentScriptLocation=${currentScriptLocation/O\://cygdrive/o} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'P:'* ]] && currentScriptLocation=${currentScriptLocation/P\://cygdrive/p} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'Q:'* ]] && currentScriptLocation=${currentScriptLocation/Q\://cygdrive/q} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'R:'* ]] && currentScriptLocation=${currentScriptLocation/R\://cygdrive/r} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'S:'* ]] && currentScriptLocation=${currentScriptLocation/S\://cygdrive/s} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'T:'* ]] && currentScriptLocation=${currentScriptLocation/T\://cygdrive/t} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'U:'* ]] && currentScriptLocation=${currentScriptLocation/U\://cygdrive/u} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'V:'* ]] && currentScriptLocation=${currentScriptLocation/V\://cygdrive/v} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'W:'* ]] && currentScriptLocation=${currentScriptLocation/W\://cygdrive/w} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'X:'* ]] && currentScriptLocation=${currentScriptLocation/X\://cygdrive/x} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'Y:'* ]] && currentScriptLocation=${currentScriptLocation/Y\://cygdrive/y} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'Z:'* ]] && currentScriptLocation=${currentScriptLocation/Z\://cygdrive/z} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'a:'* ]] && currentScriptLocation=${currentScriptLocation/a\://cygdrive/a} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'b:'* ]] && currentScriptLocation=${currentScriptLocation/b\://cygdrive/b} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'c:'* ]] && currentScriptLocation=${currentScriptLocation/c\://cygdrive/c} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'd:'* ]] && currentScriptLocation=${currentScriptLocation/d\://cygdrive/d} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'e:'* ]] && currentScriptLocation=${currentScriptLocation/e\://cygdrive/e} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'f:'* ]] && currentScriptLocation=${currentScriptLocation/f\://cygdrive/f} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'g:'* ]] && currentScriptLocation=${currentScriptLocation/g\://cygdrive/g} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'h:'* ]] && currentScriptLocation=${currentScriptLocation/h\://cygdrive/h} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'i:'* ]] && currentScriptLocation=${currentScriptLocation/i\://cygdrive/i} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'j:'* ]] && currentScriptLocation=${currentScriptLocation/j\://cygdrive/j} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'k:'* ]] && currentScriptLocation=${currentScriptLocation/k\://cygdrive/k} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'l:'* ]] && currentScriptLocation=${currentScriptLocation/l\://cygdrive/l} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'm:'* ]] && currentScriptLocation=${currentScriptLocation/m\://cygdrive/m} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'n:'* ]] && currentScriptLocation=${currentScriptLocation/n\://cygdrive/n} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'o:'* ]] && currentScriptLocation=${currentScriptLocation/o\://cygdrive/o} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'p:'* ]] && currentScriptLocation=${currentScriptLocation/p\://cygdrive/p} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'q:'* ]] && currentScriptLocation=${currentScriptLocation/q\://cygdrive/q} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'r:'* ]] && currentScriptLocation=${currentScriptLocation/r\://cygdrive/r} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 's:'* ]] && currentScriptLocation=${currentScriptLocation/s\://cygdrive/s} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 't:'* ]] && currentScriptLocation=${currentScriptLocation/t\://cygdrive/t} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'u:'* ]] && currentScriptLocation=${currentScriptLocation/u\://cygdrive/u} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'v:'* ]] && currentScriptLocation=${currentScriptLocation/v\://cygdrive/v} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'w:'* ]] && currentScriptLocation=${currentScriptLocation/w\://cygdrive/w} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'x:'* ]] && currentScriptLocation=${currentScriptLocation/x\://cygdrive/x} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'y:'* ]] && currentScriptLocation=${currentScriptLocation/y\://cygdrive/y} && echo "$currentScriptLocation" && return 0
[[ "$currentScriptLocation" == 'z:'* ]] && currentScriptLocation=${currentScriptLocation/z\://cygdrive/z} && echo "$currentScriptLocation" && return 0
echo "$currentScriptLocation" && return 0
}
#Critical prerequsites.
_getAbsolute_criticalDep() {
# ! type realpath > /dev/null 2>&1 && return 1
! type readlink > /dev/null 2>&1 && return 1
! type dirname > /dev/null 2>&1 && return 1
! type basename > /dev/null 2>&1 && return 1
#Known to succeed under BusyBox (OpenWRT), NetBSD, and common Linux variants. No known failure modes. Extra precaution.
! readlink -f . > /dev/null 2>&1 && return 1
! echo 'qwerty123.git' | grep '\.git$' > /dev/null 2>&1 && return 1
echo 'qwerty1234git' | grep '\.git$' > /dev/null 2>&1 && return 1
return 0
}
! _getAbsolute_criticalDep && exit 1
#Retrieves absolute path of current script, while maintaining symlinks, even when "./" would translate with "readlink -f" into something disregarding symlinked components in $PWD.
#However, will dereference symlinks IF the script location itself is a symlink. This is to allow symlinking to scripts to function normally.
#Suitable for allowing scripts to find other scripts they depend on. May look like an ugly hack, but it has proven reliable over the years.
_getScriptAbsoluteLocation() {
if [[ "$0" == "-"* ]]
then
return 1
fi
local currentScriptLocation
currentScriptLocation="$0"
uname -a | grep -i cygwin > /dev/null 2>&1 && type _cygwin_translation_rootFileParameter > /dev/null 2>&1 && currentScriptLocation=$(_cygwin_translation_rootFileParameter)
local absoluteLocation
if [[ (-e $PWD\/$currentScriptLocation) && ($currentScriptLocation != "") ]] && [[ "$currentScriptLocation" != "/"* ]]
then
absoluteLocation="$PWD"\/"$currentScriptLocation"
absoluteLocation=$(_realpath_L_s "$absoluteLocation")
else
absoluteLocation=$(_realpath_L "$currentScriptLocation")
fi
if [[ -h "$absoluteLocation" ]]
then
absoluteLocation=$(readlink -f "$absoluteLocation")
absoluteLocation=$(_realpath_L "$absoluteLocation")
fi
echo $absoluteLocation
}
alias getScriptAbsoluteLocation=_getScriptAbsoluteLocation
#Retrieves absolute path of current script, while maintaining symlinks, even when "./" would translate with "readlink -f" into something disregarding symlinked components in $PWD.
#Suitable for allowing scripts to find other scripts they depend on.
_getScriptAbsoluteFolder() {
if [[ "$0" == "-"* ]]
then
return 1
fi
dirname "$(_getScriptAbsoluteLocation)"
}
alias getScriptAbsoluteFolder=_getScriptAbsoluteFolder
#Retrieves absolute path of parameter, while maintaining symlinks, even when "./" would translate with "readlink -f" into something disregarding symlinked components in $PWD.
#Suitable for finding absolute paths, when it is desirable not to interfere with symlink specified folder structure.
_getAbsoluteLocation() {
if [[ "$1" == "-"* ]]
then
return 1
fi
if [[ "$1" == "" ]]
then
echo
return
fi
local absoluteLocation
if [[ (-e $PWD\/$1) && ($1 != "") ]] && [[ "$1" != "/"* ]]
then
absoluteLocation="$PWD"\/"$1"
absoluteLocation=$(_realpath_L_s "$absoluteLocation")
else
absoluteLocation=$(_realpath_L "$1")
fi
echo "$absoluteLocation"
}
alias getAbsoluteLocation=_getAbsoluteLocation
#Retrieves absolute path of parameter, while maintaining symlinks, even when "./" would translate with "readlink -f" into something disregarding symlinked components in $PWD.
#Suitable for finding absolute paths, when it is desirable not to interfere with symlink specified folder structure.
_getAbsoluteFolder() {
if [[ "$1" == "-"* ]]
then
return 1
fi
local absoluteLocation=$(_getAbsoluteLocation "$1")
dirname "$absoluteLocation"
}
alias getAbsoluteLocation=_getAbsoluteLocation
_getScriptLinkName() {
! [[ -e "$0" ]] && return 1
! [[ -L "$0" ]] && return 1
! type basename > /dev/null 2>&1 && return 1
local scriptLinkName
scriptLinkName=$(basename "$0")
[[ "$scriptLinkName" == "" ]] && return 1
echo "$scriptLinkName"
}
#https://unix.stackexchange.com/questions/27021/how-to-name-a-file-in-the-deepest-level-of-a-directory-tree?answertab=active#tab-top
_filter_lowestPath() {
awk -F'/' 'NF > depth {
depth = NF;
deepest = $0;
}
END {
print deepest;
}'
}
#https://stackoverflow.com/questions/1086907/can-find-or-any-other-tool-search-for-files-breadth-first
_filter_highestPath() {
awk -F'/' '{print "", NF, $F}' | sort -n | awk '{print $2}' | head -n 1
}
_recursion_guard() {
! [[ -e "$1" ]] && return 1
! type "$1" >/dev/null 2>&1 && return 1
local launchGuardScriptAbsoluteLocation
launchGuardScriptAbsoluteLocation=$(_getScriptAbsoluteLocation)
local launchGuardTestAbsoluteLocation
launchGuardTestAbsoluteLocation=$(_getAbsoluteLocation "$1")
[[ "$launchGuardScriptAbsoluteLocation" == "$launchGuardTestAbsoluteLocation" ]] && return 1
return 0
}
#Checks whether command or function is available.
# DANGER Needed by safeRMR .
_checkDep() {
if ! type "$1" >/dev/null 2>&1
then
echo "$1" missing
_stop 1
fi
}
_tryExec() {
type "$1" >/dev/null 2>&1 && "$1"
}
_tryExecFull() {
type "$1" >/dev/null 2>&1 && "$@"
}
#Fails if critical global variables point to nonexistant locations. Code may be duplicated elsewhere for extra safety.
_failExec() {
[[ ! -e "$scriptAbsoluteLocation" ]] && return 1
[[ ! -e "$scriptAbsoluteFolder" ]] && return 1
return 0
}
#Portable sanity checked "rm -r" command.
# DANGER Last line of defense against catastrophic errors where "rm -r" or similar would be used!
# WARNING Not foolproof. Use to guard against systematic errors, not carelessness.
# WARNING Do NOT rely upon outside of internal programmatic usage inside script!
# WARNING Consider using this function even if program control flow can be proven safe. Redundant checks just might catch catastrophic memory errors.
#"$1" == directory to remove
_safeRMR() {
! type _getAbsolute_criticalDep > /dev/null 2>&1 && return 1
! _getAbsolute_criticalDep && return 1
#Fail sooner, avoiding irrelevant error messages. Especially important to cases where an upstream process has already removed the "$safeTmp" directory of a downstream process which reaches "_stop" later.
! [[ -e "$1" ]] && return 1
[[ ! -e "$scriptAbsoluteLocation" ]] && return 1
[[ ! -e "$scriptAbsoluteFolder" ]] && return 1
_failExec || return 1
#if [[ ! -e "$0" ]]
#then
# return 1
#fi
if [[ "$1" == "" ]]
then
return 1
fi
if [[ "$1" == "/" ]]
then
return 1
fi
if [[ "$1" == "-"* ]]
then
return 1
fi
#Denylist.