commit 5c4f4428d944b04cc5c15d14bbc2c2badc531a80
parent 947b17ad388e5d6230097e61769ce3e5166029ba
Author: parazyd <parazyd@dyne.org>
Date: Wed, 23 Dec 2020 09:17:02 +0100
Add zuper as part of arm-sdk repo.
Diffstat:
5 files changed, 1971 insertions(+), 0 deletions(-)
diff --git a/lib/zuper/COPYING.txt b/lib/zuper/COPYING.txt
@@ -0,0 +1,674 @@
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+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/lib/zuper/Makefile b/lib/zuper/Makefile
@@ -0,0 +1,10 @@
+DESTDIR?=
+PREFIX?=/usr
+
+all:
+ @echo "Nothing to be make. Make install to ${DESTDIR}${PREFIX}/share/zuper"
+
+install:
+ install -d ${DESTDIR}${PREFIX}/share/zuper
+ install -p -m 644 zuper ${DESTDIR}${PREFIX}/share/zuper/zuper
+ install -p -m 644 zuper.init ${DESTDIR}${PREFIX}/share/zuper/zuper.init
diff --git a/lib/zuper/README.md b/lib/zuper/README.md
@@ -0,0 +1,149 @@
+```
+ _ _ _ _ _
+(_)(_)(_)(_)(_)
+ _(_)_ _ _ _ _ _ _ _ _ _ _ _ _
+ _(_) (_) (_) (_)(_)(_)(_)_ (_)(_)(_)(_)(_)_ _ (_)(_)
+ _(_) (_) (_) (_) (_(_) _ _ _ (_)(_)(_)
+ _(_) (_) (_) (_) (_(_)(_)(_)(_)(_)(_)
+ _ (_) _ _ (_)_ _ _(_)_(_) _ _ _(_(_)_ _ _ _ (_)
+(_)(_)(_)(_)(_)(_)(_)(_) (_(_)(_)(_)(_) (_)(_)(_)(_) (_)
+ (_)
+ (_)
+```
+
+**Z**sh **U**ltimate **P**rogrammer's **E**xtensions **R**efurbished
+
+# Introduction
+
+Zuper is a minimalist library of extensions for Zsh programming,
+because believe it or not Zsh is so slick and powerful that it can be
+used as a programming language.
+
+# Features
+
+ - key/value store on files mapped to associative arrays
+ - consul k/v integration using native get/set over ztcp
+ - nifty messaging using colors and intl support (gettext)
+ - procedural flow debugging functions and variable monitor
+ - clean exit and destructors registration
+ - improved temp file handling
+ - more to come...
+
+# Requirements
+
+Zuper requires the following programs to be installed:
+
+```
+zsh curl sed awk hexdump
+```
+
+# Usage
+
+Documentation is still lacking, however to use Zuper in Zsh scripts
+one must first source its main library `zuper`, then declare global
+variables and arrays, then source `zuper.init` and at the end of the
+program call `endgame` for a clean exit. Example test program:
+
+```zsh
+#!/usr/bin/env zsh
+
+# switch on debugging output
+DEBUG=1
+
+# switch logging into test.log
+LOG=test.log
+
+##### INIT
+# load our zuper library
+source zuper
+# declare a custom global variable
+vars+=(myvar)
+# assign a default value to our global variable
+myvar=${myvar:-ok}
+# declare a global associative map
+maps+=(mymap)
+# conclude the init phase
+source zuper.init
+#####
+
+# register the zdump debug function to be executed on exit
+destruens+=(zdump)
+
+
+# declare a custom function to print it out
+testfun() {
+ # register the function in the debug flow
+ fn "testfun"
+ # print out with nice green colors
+ notice "Custom var: $myvar"
+ # create a tempfile
+ ztmp && mytmp=$ztmpfile
+ # put the value into the tempfile
+ print $myvar >> $mytmp
+ # print out the path to the tempfile
+ act "Temp file: $mytmp"
+ # print out the contents of the tempfile
+ act "Content: `cat $mytmp`"
+ # the tempfile will be deleted in endgame()
+ # but can also be delete earlier here, optionally
+}
+
+
+# call our custom function
+testfun
+
+# we use words and their md5
+mymap=(
+ lorem f737a087bca81f69a6048ec744c73e41
+ ipsum 02063b9bf9d6e15ad61226fa4584aae0
+ dolor 5f20730ddc7a1fedbf265358f0ce4f26
+)
+
+# save the map into a file
+zkv.save mymap test.map
+
+# free the map
+mymap=()
+
+# re-declare the map
+typeset -A mymap
+# re-load saved contents
+zkv.load test.map
+# dump contents
+for i in ${(k)mymap}; do
+ print "$i \t ${mymap[$i]}"
+done
+
+# end of the program (will call destructors)
+```
+
+
+# Deployment
+
+Here we reference applications where zuper is used succesfully:
+
+ - Devuan Simple Development Toolkit https://git.devuan.org/groups/sdk
+ - Dowse IoT awareness OS http://dyne.org/software/dowse
+ - Jaro Mail terminal email http://dyne.org/software/jaro-mail
+
+If you use it, let us know! http://dyne.org/contact
+
+# License
+
+Zuper is designed, developed and maintained by Denis Roio <jaromil@dyne.org>
+
+Zuper is Copyright (C) 2015 by the Dyne.org foundation
+
+This source code is free software; you can redistribute it and/or
+modify it under the terms of the GNU Public License as published by
+the Free Software Foundation; either version 3 of the License, or (at
+your option) any later version.
+
+This source code is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Please refer to
+the GNU Public License for more details.
+
+You should have received a copy of the GNU Public License along with
+this source code; if not, write to: Free Software Foundation, Inc.,
+675 Mass Ave, Cambridge, MA 02139, USA.
diff --git a/lib/zuper/zuper b/lib/zuper/zuper
@@ -0,0 +1,1099 @@
+#!/usr/bin/env zsh
+## -*- origami-fold-style: triple-braces -*-
+#
+# Zuper - Zsh Ultimate Programmer's Extensions Refurbished
+#
+# Copyright (C) 2015 Dyne.org Foundation
+#
+# Zuper is designed, written and maintained by Denis Roio <jaromil@dyne.org>
+#
+# This source code is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This source code is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# Please refer to the GNU Public License for more details.
+#
+# You should have received a copy of the GNU Public License along with
+# this source code; if not, write to:
+# Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+if [[ ! -z ${zuper_version} ]]; then
+ warning "zuper version ::1 version:: was already loaded -- doing nothing" ${zuper_version}
+ return;
+fi
+
+
+##########################
+typeset -aU vars
+typeset -aU arrs
+typeset -aU maps
+
+typeset -aU funs
+
+vars=(DEBUG QUIET LOG)
+arrs=(req freq)
+
+vars+=(zuper_version)
+zuper_version=0.4
+
+# load necessary zsh extensions
+zmodload zsh/regex
+zmodload zsh/system
+zmodload zsh/net/tcp
+zmodload zsh/mapfile
+
+# {{{ Messaging
+
+# Messaging function with pretty coloring
+autoload colors
+colors
+
+vars+=(last_act last_func last_notice)
+
+function _msg() {
+ local msg="$2"
+ local i
+ command -v gettext 1>/dev/null 2>/dev/null && msg="$(gettext -s "$2")"
+ for i in {3..${#}}; do
+ msg=${(S)msg//::$(($i - 2))*::/$*[$i]}
+ done
+
+ local command="print -P"
+ local progname="$fg[magenta]${PROGRAM##*/}$reset_color"
+ local message="$fg_bold[normal]$fg_no_bold[normal]$msg$reset_color"
+ local -i returncode
+
+ case "$1" in
+ inline)
+ command+=" -n"; pchars=" > "; pcolor="yellow"
+ ;;
+ message)
+ last_act="$msg"
+ pchars=" . "; pcolor="white"; message="$fg_no_bold[$pcolor]$msg$reset_color"
+ ;;
+ verbose)
+ last_func="$msg"
+ pchars="[D]"; pcolor="blue"
+ ;;
+ success)
+ last_notice="$msg"
+ pchars="(*)"; pcolor="green"; message="$fg_no_bold[$pcolor]$msg$reset_color"
+ ;;
+ warning)
+ pchars="[W]"; pcolor="yellow"; message="$fg_no_bold[$pcolor]$msg$reset_color"
+ ;;
+ failure)
+ pchars="[E]"; pcolor="red"; message="$fg_no_bold[$pcolor]$msg$reset_color"
+ returncode=1
+ ;;
+ print)
+ progname=""
+ ;;
+ *)
+ pchars="[F]"; pcolor="red"
+ message="Developer oops! Usage: _msg MESSAGE_TYPE \"MESSAGE_CONTENT\""
+ returncode=127
+ zerr
+ ;;
+ esac
+ ${=command} "${progname} $fg_bold[$pcolor]$pchars$reset_color ${message}$color[reset_color]" >&2
+
+ # write the log if its configured
+ [[ "$LOG" = "" ]] || {
+ touch $LOG || return $?
+ ${=command} "${progname} $fg_bold[$pcolor]$pchars$reset_color ${message}$color[reset_color]" >> $LOG
+ }
+
+ return $returncode
+}
+
+function _message say act() {
+ local notice="message"
+ [[ "$1" = "-n" ]] && shift && notice="inline"
+ [[ $QUIET = 1 ]] || _msg "$notice" $@
+ return 0
+}
+
+function _verbose xxx func() {
+ [[ $DEBUG = 1 ]] && _msg verbose $@
+ return 0
+}
+
+function _success yes notice() {
+ [[ $QUIET = 1 ]] || _msg success $@
+ return 0
+}
+
+function _warning no warn warning() {
+ [[ $QUIET = 1 ]] || _msg warning $@
+ return 0
+}
+
+function _failure fatal die error() {
+ # typeset -i exitcode=${exitv:-1}
+ [[ $QUIET = 1 ]] || _msg failure $@
+ return 1
+}
+
+function _print() {
+ [[ $QUIET = 1 ]] || _msg print $@
+ return 0
+}
+
+# }}} Messaging
+
+# {{{ Debugging
+
+fn() {
+ fun="$@"
+ req=()
+ freq=()
+ func "$fun"
+}
+
+zerr() {
+ error "error in: ${fun:-$last_notice}"
+ [[ "$last_func" = "" ]] || warn "called in: $last_func"
+ [[ "$last_act" = "" ]] || warn "called in: $last_act"
+ [[ "$last_notice" = "" ]] || warn "called in: $last_notice"
+ # [[ "$fun" = "" ]] || warn "called in: $fun"
+ TRAPEXIT() {
+ error "error reported, operation aborted."
+ }
+ return 1
+}
+
+
+function ckreq reqck() {
+ err=0
+ for v in $req; do
+ [[ "${(P)v}" = "" ]] && {
+ warn "${fun[(ws: :)1]}(): required setting is blank: $v"
+ err=1
+ }
+ done
+
+ [[ $err = 1 ]] && return $err
+
+ for f in $freq; do
+ # exists and has size greater than zero
+ [[ -s $f ]] || {
+ warn "required file empty: $f"
+ err=1
+ }
+ done
+ [[ $err == 1 ]] && zerr
+ return $err
+}
+
+# dump all variables, arrays and maps declared as global in zuper
+# do not print out what is empty
+zdump() {
+ fn zdump
+ [[ ${#vars} -gt 0 ]] && {
+ print "Global variables:"
+ for _v in $vars; do
+ _c=${(P)_v}
+ [[ "$_c" = "" ]] ||
+ print " $_v = \t $_c"
+ done
+ }
+ [[ ${#arrs} -gt 0 ]] && {
+ print "Global arrays:"
+ for _a in $arrs; do
+ _c=${(P)_a}
+ [[ "$_c" = "" ]] ||
+ print " $_a \t ( ${(P)_a} )"
+ done
+ }
+ [[ ${#maps} -gt 0 ]] && {
+ print "Global maps:"
+ for _m in $maps; do
+ [[ "${(Pv)_m}" = "" ]] || {
+ print " $_m [key] \t ( ${(Pk)_m} )"
+ print " $_m [val] \t ( ${(Pv)_m} )"
+ }
+ done
+ }
+}
+
+# handy wrappers for throw/catch execution of blocks where we need the
+# program to exit on any error (non-zero) returned by any function
+throw() { function TRAPZERR() { zerr; return 1 } }
+catch() { function TRAPZERR() { } }
+
+##########################
+# Endgame handling
+
+arrs+=(destruens)
+
+# Trap functions for the endgame event
+# TRAPINT() { endgame INT; return $? }
+# TRAPEXIT() { endgame EXIT; return $? }
+TRAPHUP() { endgame HUP; return $? }
+TRAPQUIT() { endgame QUIT; return $? }
+TRAPABRT() { endgame ABORT; return $? }
+TRAPKILL() { endgame KILL; return $? }
+# TRAPPIPE() { endgame PIPE; return $? }
+TRAPTERM() { endgame TERM; return $? }
+TRAPSTOP() { endgame STOP; return $? }
+# TRAPZERR() { func "function returns non-zero." }
+
+
+funs+=(__test_fn)
+
+__test_fn(){
+ echo "foo"
+}
+
+function zuper_end endgame() {
+ fn "endgame $*"
+
+ # execute all no matter what
+ TRAPZERR() { }
+
+ # process registered destructors
+ for d in $destruens; do
+ fn "destructor: $d"
+ $d
+ done
+
+ # unset all the variables included in "vars"
+ for v in $vars; do
+ unset $v
+ done
+
+ # unset all the assoc-arrays included in "arrs"
+ for a in $arrs; do
+ unset $a
+ done
+
+ # unset all the maps included in "maps"
+ for m in $maps; do
+ unset $m
+ done
+
+ ## We should also undefine the core zuper functions to make it
+ ## really idempotent. I have added an array "funs" which contains
+ ## the names of the functions to be undefined by endgame/zuper_end
+ ## FIXME!!!! The only "registered" function so far is __test_fn,
+ ## but if we like this we should register all the core zuper
+ ## functions as soon as they are declared
+ for f in $funs; do
+ unfunction $f
+ done
+ unset maps
+ unset arrs
+ unset vars
+ unset funs
+
+ return 0
+}
+
+## This function should reinitialise zuper and all the variables
+# zuper_restart(){
+# endgame
+# source zuper
+# }
+
+
+# Use this to make sure endgame() is called at exit.
+# unlike TRAPEXIT, the zshexit() hook is not called when functions exit.
+function zuper.exit zshexit() { endgame EXIT; return $? }
+
+# }}} Debugging
+
+# {{{ Tempfiles
+
+##########################
+# Temp file handling
+
+vars+=(ztmpfile)
+# ztmp() fills in $ztmpfile global. Caller must copy that variable as
+# it will be overwritten at every call.
+ztmp() {
+ fn ztmp
+
+ ztmpfile=`mktemp`
+ tmpfiles+=($ztmpfile)
+}
+
+vars+=(ztmpdir)
+# ztmpd() fills in $ztmpdir global. Caller must copy that variable as
+# it will be overwritten at every call.
+
+ztmpd() {
+ fn ztmpd
+
+ ztmpdir=`mktemp -d`
+ tmpdirs+=($ztmpdir)
+}
+
+# All tempfiles are freed in endgame()
+_ztmp_destructor() {
+ fn _ztmp_destructor
+
+ for f in $tmpfiles; do
+ rm -f "$f"
+ done
+ for d in $tmpdirs; do
+ [[ $d == "" || ! -d $d ]] && continue
+ pushd $d
+ [[ `pwd` == "/" ]] && {popd; continue}
+ popd
+ rm -rf "$d"
+ done
+
+ tmpfiles=()
+ tmpdirs=()
+}
+
+arrs+=(tmpfiles)
+arrs+=(tmpdirs)
+destruens+=(_ztmp_destructor)
+
+# }}} Tempfiles
+
+# {{{ Strings
+
+# tokenizer, works only with one char length delimiters
+# saves everything in global array tok=()
+arrs+=(tok)
+function string.strtok strtok() {
+ fn "strtok $*"
+ _string="$1"
+ _delim="$2"
+ req=(_string _delim)
+ ckreq || return $?
+
+ tok=()
+ f=0
+ c=0
+ for c in {1..${#_string}}; do
+ if [[ "${_string[(e)$c]}" == "$_delim" ]]; then
+ # check if not empty
+ t="${_string[(e)$(($f + 1)),$(($c - 1))]}"
+ if [[ "$t" == "" ]]; then
+ tok+=("null")
+ else
+ tok+=("$t")
+ fi
+ # save last found
+ f=$c
+ fi
+ done
+ # add last token
+ t=${_string[(e)$(($f + 1)),$c]}
+ if [[ "$t" == "" ]]; then
+ tok+=("null")
+ else
+ tok+=("$t")
+ fi
+}
+
+# remote leading and trailing spaces in a string taken from stdin
+function string.trim trim() {
+ sed -e 's/^[[:space:]]*//g ; s/[[:space:]]*\$//g'
+}
+
+# extract all emails found in a text from stdin
+# outputs them one per line
+function string.extract_emails extract_emails() {
+ awk '{ for (i=1;i<=NF;i++)
+ if ( $i ~ /[[:alnum:]]@[[:alnum:]]/ ) {
+ gsub(/<|>|,/ , "" , $i); print $i } }'
+}
+
+# takes a string as argument, returns success if is an email
+function string.isemail isemail() {
+ [[ "$1" =~ "\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}\b" ]] && return 0
+ # print "$1" | grep -q -E '[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}' && return 0
+ return 1
+}
+
+# takes a numeric argument and prints out a human readable size
+function string.human_size human_size() {
+ [[ $1 -gt 0 ]] || {
+ error "human_size() called with invalid argument"
+ return 1
+ }
+
+ # we use the binary operation for speed
+ # shift right 10 is divide by 1024
+
+ # gigabytes
+ [[ $1 -gt 1073741824 ]] && {
+ print -n "$(( $1 >> 30 )) GB"
+ return 0
+ }
+
+ # megabytes
+ [[ $1 -gt 1048576 ]] && {
+ print -n "$(( $1 >> 20 )) MB"
+ return 0
+ }
+ # kilobytes
+ [[ $1 -gt 1024 ]] && {
+ print -n "$(( $1 >> 10 )) KB"
+ return 0
+ }
+ # bytes
+ print -n "$1 Bytes"
+ return 0
+}
+
+
+# strips out all html/xml tags (everything between < >)
+function string.html_strip xml_strip html_strip() { sed 's/<[^>]\+>//g' }
+
+# changes stdin string special chars to be shown in html
+function string.escape_html escape_html() {
+ sed -e '
+s/\&/\&/g
+s/>/\>/g
+s/</\</g
+s/"/\"/g
+'
+}
+
+# escapes special chars in urls
+function string.decode_url decode_url urldecode() {
+ sed -e '
+s/%25/%/gi
+s/%20/ /gi
+s/%09/ /gi
+s/%21/!/gi
+s/%22/"/gi
+s/%23/#/gi
+s/%24/\$/gi
+s/%26/\&/gi
+s/%27/'\''/gi
+s/%28/(/gi
+s/%29/)/gi
+s/%2a/\*/gi
+s/%2b/+/gi
+s/%2c/,/gi
+s/%2d/-/gi
+s/%2e/\./gi
+s/%2f/\//gi
+s/%3a/:/gi
+s/%3b/;/gi
+s/%3d/=/gi
+s/%3e//gi
+s/%3f/?/gi
+s/%40/@/gi
+s/%5b/\[/gi
+s/%5c/\\/gi
+s/%5d/\]/gi
+s/%5e/\^/gi
+s/%5f/_/gi
+s/%60/`/gi
+s/%7b/{/gi
+s/%7c/|/gi
+s/%7d/}/gi
+s/%7e/~/gi
+s/%09/ /gi
+'
+}
+
+function helper.encode-url encode_url urlencode() {
+ sed -e '
+s/%/%25/g
+s/ /%20/g
+s/ /%09/g
+s/!/%21/g
+s/"/%22/g
+s/#/%23/g
+s/\$/%24/g
+s/\&/%26/g
+s/'\''/%27/g
+s/(/%28/g
+s/)/%29/g
+s/\*/%2a/g
+s/+/%2b/g
+s/,/%2c/g
+s/-/%2d/g
+s/\./%2e/g
+s/\//%2f/g
+s/:/%3a/g
+s/;/%3b/g
+s//%3e/g
+s/?/%3f/g
+s/@/%40/g
+s/\[/%5b/g
+s/\\/%5c/g
+s/\]/%5d/g
+s/\^/%5e/g
+s/_/%5f/g
+s/`/%60/g
+s/{/%7b/g
+s/|/%7c/g
+s/}/%7d/g
+s/~/%7e/g
+s/ /%09/g
+'
+}
+
+# Check if a version number (semantic format) is greater than the other
+# returns 0 if the first argument is greater or equal than the second.
+function string.version_greatoreq version_greatoreq() {
+ [[ "$(printf '%s\n' "$@" | sort -rV | head -n 1)" = "$1" ]] && return 0
+ return 1
+}
+
+# }}} Strings
+
+# {{{ Networking
+
+# This is only tested on GNU/Linux and makes use of sysfs
+
+# index of all network devices
+arrs+=(net_devices)
+
+# map of ipv4 assigned addresses: [dev addr]
+maps+=(net_ip4_addr)
+# map of ipv6 assigned addresses: [dev addr]
+maps+=(net_ip6_addr)
+
+# map of dhcp served ipv4
+maps+=(ip4dhcps)
+# map of dhcp served ipv6
+maps+=(ip6dhcps)
+
+# map of external ipv4 addresses
+maps+=(net_ip4_exit)
+# map of internal ipv6 addresses
+# maps+=(ip6exits)
+
+net.scan_devices() {
+ for i in ${(f)"$(find /sys/devices/ -name net)"}; do
+ for dev in ${(f)"$(ls --indicator-style=none $i)"}; do
+ # skip the loopback device
+ [[ "$dev" =~ "^lo" ]] && continue
+ func "found network device: $dev"
+ net_devices+=($dev)
+ done
+ done
+
+ # return error if no device found
+ if [[ ${#net_devices} = 0 ]]; then return 1
+ else
+ act "${#net_devices} devices found: ${net_devices}"
+ return 0
+ fi
+}
+
+net.scan_addresses() {
+ [[ ${#net_devices} = 0 ]] && {
+ error "No network device found."
+ func "Have you ran net.scan_devices() first?"
+ return 1
+ }
+
+ for dev in ${net_devices}; do
+ # check ipv4 connections
+ conn=`ip addr show $dev | awk '/inet / {print $2}'`
+ [[ "$conn" = "" ]] || {
+ net_ip4_addr+=($dev $conn) }
+ # check ipv6 connections
+ conn=`ip addr show $dev | awk '/inet6/ {print $2}'`
+ [[ "$conn" = "" ]] || {
+ net_ip6_addr+=($dev $conn) }
+ done
+
+ # list ipv4
+ act "${#net_ip4_addr} ipv4 connected devices found"
+ for c in ${(k)net_ip4_addr}; do
+ act " $c ${net_ip4_addr[$c]}"
+ done
+
+ # list ipv6
+ act "${#net_ip6_addr} ipv6 connected devices found"
+ for c in ${(k)net_ip6_addr}; do
+ act " $c ${net_ip6_addr[$c]}"
+ done
+ # find out network addresses
+
+ return 0
+}
+
+net.scan_exits() {
+ # just ipv4 for now, also we use curl to drive the call over the
+ # specific interface, but if that wouldn't matter then rest.get is
+ # better to avoid this dependency
+
+ for dev in ${(k)net_ip4_addr}; do
+ addr=`curl --silent --interface $dev https://api.ipify.org`
+ if [[ "$?" != "0" ]]; then
+ error "curl returns $?: $addr"
+ else
+ [[ "$addr" = "" ]] || {
+ notice "$dev external ip: $addr"
+ net_ip4_exit+=($dev $addr)
+ }
+ fi
+ done
+
+ for dev in ${(k)net_ip6_addr}; do
+ addr=`curl --silent --ipv6 --interface $dev https://api.ipify.org`
+ if [[ $? != 0 ]]; then
+ error "curl returns $?: $addr"
+ else
+ [[ "$addr" = "" ]] || {
+ notice "$dev external ip: $addr"
+ net_ip4_exit+=($dev $addr)
+ }
+ fi
+ done
+
+}
+
+# }}} Networking
+
+# {{{ Key/Value filesave
+
+# optional: define zkv=1 on source
+
+##########################
+# Key/Value file storage using ZSh associative maps
+
+
+# load a map from a file
+# map must be already instantiated with typeset -A by called
+# name of map is defined inside the file
+function zkv.load() {
+ fn "zkv-load $*"
+
+ file=$1
+ [[ "$file" = "" ]] && {
+ error "zkv-open() missing argument: file-path"
+ zerr
+ return 1 }
+ [[ -r "$file" ]] || {
+ error "zkv-open() file not found $file"
+ zerr
+ return 1 }
+ [[ -s "$file" ]] || {
+ error "zkv-open() file is empty"
+ zerr
+ return 1 }
+
+ source $file
+}
+
+# save a map in a file
+# $1 = name of the map associative array
+# $2 = full path to the file
+function zkv.save() {
+ fn "zkv.save $*"
+
+ _map=$1
+ _path=$2
+ [[ "$_path" = "" ]] && {
+ error "zkv.save() missing argument: map-name path-to-file"
+ zerr
+ return 1
+ }
+ [[ -r $_path ]] && {
+ func "zkv.close() overwriting $_path"
+ func "backup turd left behind: ${_path}~"
+ mv $_path $_path~
+ }
+ touch $_path
+
+ # wondering about http://www.zsh.org/mla/users/2015/msg00286.html
+ # meanwhile solved using a double array, wasting a full map memcpy
+ _karr=(${(Pk)_map})
+ _varr=(${(Pv)_map})
+ _num="${#_karr}"
+ for c in {1..$_num}; do
+ # can also be cat here, however for speed we use builtins
+ # switch to cat if compatibility is an issue
+ sysread -o 1 <<EOF >> $_path
+$_map+=("${_karr[$c]}" "${(v)_varr[$c]}")
+EOF
+ done
+ func "$_num key/values stored in $_path"
+}
+
+
+# }}} Key/Value filesave
+
+# {{{ Get/Set REST API
+
+########
+# Restful API client (WIP, needs more testing)
+# there is a clear zsh optimization here in get/set kv
+# using zsh/tcp instead of spawning curl
+# and perhaps querying with one call using ?recursive
+
+vars+=(rest_reply_body rest_reply_header)
+maps+=(rest_header)
+
+function rest.put() {
+ fn "rest.put $*"
+
+ # $1 = hostname
+ # $2 = port
+ # $3 = path
+ # value from stdin |
+
+ # to check if the http service is running is up to the caller
+
+ _host=${1} # ip address
+ _port=${2}
+ _path=${3}
+ sysread _v
+
+ req=(_host)
+ ckreq || return $?
+
+ if ztcp $_host $_port; then
+
+ # TODO: work out various parsers, this one works with consul.io
+
+ _fd=$REPLY
+ # func "tcp open on fd $fd"
+ cat <<EOF >& $_fd
+PUT ${_path} HTTP/1.1
+User-Agent: Zuper/$zuper_version
+Host: ${_host}:${_port}
+Accept: */*
+Content-Length: ${#_v}
+Content-Type: application/x-www-form-urlencoded
+
+EOF
+
+ print -n "$_v" >& $_fd
+
+ sysread -i $_fd _res
+
+ # close connection
+ ztcp -c $_fd
+
+ [[ "$_res" =~ "true" ]] || {
+ warn "failed PUT on restful key/value"
+ warn "host: ${_host}"
+ warn "port: ${_port}"
+ warn "path: ${_path}"
+ warn "value: $_v"
+ print - "$_res"
+ zerr
+ return 1
+ }
+
+ else
+ error "cannot connect to restful service: $_host:$_port"
+ zerr
+ return 1
+ fi
+
+ return 0
+
+}
+
+function rest.get() {
+ fn "rest.get $*"
+
+ _host=${1}
+ _port=${2}
+ _path=${3}
+
+ req=(_host _port)
+ ckreq || return $?
+
+ ztcp $_host $_port || {
+ zerr
+ return 1
+ }
+
+ _fd=$REPLY
+
+ # TODO: work out various parsers, this one works with consul.io
+
+ cat <<EOF >& $_fd
+GET ${_path} HTTP/1.1
+User-Agent: Zuper/$zuper_version
+Host: $_host:$_port
+Accept: */*
+
+EOF
+
+ # read header response
+ rest_reply=`sysread -i $_fd -o 1`
+
+ for i in "${(f)rest_reply}"; do
+ print $i | hexdump -C
+ # first line is the response code
+
+ [[ "$i" -regex-match "\x0d\x0a$" ]] && {
+ func BLANK
+ break }
+
+ # # save other lines in map for fast retrieval
+ # _field=${i[(ws@:@)1]}
+ # func "$_field - header field parsed"
+ # rest_header[$_field]="${i[(ws@:@)2]}"
+
+ # c=$(( $c + 1 ))
+ done
+ # rest_reply_header="${(f)$(cat <&$_fd)}"
+
+ func "${#rest_reply_header} bytes response header stored in rest_reply_header"
+ # | awk -F: '
+ #/"Value":/ { gsub(/"|}]/,"",$7) ; print $7 }' | base64 -d
+
+ # TODO: read content-length and use it here
+
+ rest_reply_body="${(f)$(sysread -i $_fd -o 1)}"
+ func "${#rest_reply_body} bytes response body stored in rest_reply_body"
+
+ # close connection
+ ztcp -c $_fd
+
+ return 0
+
+}
+
+
+# }}} Get/Set REST API
+
+# {{{ Parse commandline options
+
+# for example usage, see Tomb http://tomb.dyne.org
+vars+=(subcommand)
+arrs+=(option_main option_params)
+maps+=(option option_subcommands)
+
+# Hi, dear developer! Are you trying to add a new subcommand, or
+# to add some options? Well, keep in mind that option names are
+# global: they cannot bear a different meaning or behaviour across
+# subcommands. The only exception is "-o" which means: "options
+# passed to the local subcommand", and thus can bear a different
+# meaning for different subcommands.
+#
+# For example, "-s" means "size" and accepts one argument. If you
+# are tempted to add an alternate option "-s" (e.g., to mean
+# "silent", and that doesn't accept any argument) DON'T DO IT!
+#
+# There are two reasons for that:
+# I. Usability; users expect that "-s" is "size"
+# II. Option parsing WILL EXPLODE if you do this kind of bad
+# things (it will complain: "option defined more than once")
+#
+# If you want to use the same option in multiple commands then you
+# can only use the non-abbreviated long-option version like:
+# -force and NOT -f
+
+option.is_set() {
+
+ # Check whether a commandline option is set.
+ #
+ # Synopsis: option_is_set -flag [out]
+ #
+ # First argument is the commandline flag (e.g., "-s").
+ # If the second argument is present and set to 'out', print out the
+ # result: either 'set' or 'unset' (useful for if conditions).
+ #
+ # Return 0 if is set, 1 otherwise
+ local -i r # the return code (0 = set, 1 = unset)
+
+ [[ -n ${(k)option[$1]} ]];
+ r=$?
+
+ [[ $2 == "out" ]] && {
+ [[ $r == 0 ]] && { print 'set' } || { print 'unset' }
+ }
+
+ return $r;
+}
+# Print the option value matching the given flag
+# Unique argument is the commandline flag (e.g., "-s").
+option.value() {
+ print -n - "${option[$1]}"
+}
+option.parse() {
+
+ ### Detect subcommand
+ local -aU every_opts #every_opts behave like a set; that is, an array with unique elements
+ for optspec in ${option_subcommands}${option_main}; do
+ for opt in ${=optspec}; do
+ every_opts+=${opt}
+ done
+ done
+ local -a oldstar
+ oldstar=("${(@)argv}")
+ #### detect early: useful for --option-parsing
+ zparseopts -M -D -Adiscardme ${every_opts}
+ if [[ -n ${(k)discardme[--option-parsing]} ]]; then
+ print $1
+ if [[ -n "$1" ]]; then
+ return 1
+ fi
+ return 0
+ fi
+ unset discardme
+ if ! zparseopts -M -E -D -Adiscardme ${every_opts}; then
+ _failure "Command parses error."
+ return 1
+ fi
+ unset discardme
+ subcommand=${1}
+ if [[ -z $subcommand ]]; then
+ subcommand="__empty"
+ fi
+
+ if [[ -z ${(k)option_subcommands[$subcommand]} ]]; then
+ subcommand="__unknown:$subcommand"
+ # _warning "There's no such command \"::1 subcommand::\"." $subcommand
+ # _failure "Please try -h for help."
+ fi
+ argv=("${(@)oldstar}")
+ unset oldstar
+
+ ### Parsing global + command-specific options
+ # zsh magic: ${=string} will split to multiple arguments when spaces occur
+ set -A cmd_opts ${option_main} ${=option_subcommands[$subcommand]}
+ # if there is no option, we don't need parsing
+ if [[ -n $cmd_opts ]]; then
+ zparseopts -M -E -D -Aoption ${cmd_opts}
+ if [[ $? != 0 ]]; then
+ _warning "Some error occurred during option processing."
+ _failure "See zuper option.parse for more info."
+ return 1
+ fi
+ fi
+ #build option_params (array of arguments) and check if there are unrecognized options
+ ok=0
+ option_params=()
+ for arg in $*; do
+ if [[ $arg == '--' || $arg == '-' ]]; then
+ ok=1
+ continue #it shouldn't be appended to option_params
+ elif [[ $arg[1] == '-' ]]; then
+ if [[ $ok == 0 ]]; then
+ _failure "Unrecognized option ::1 arg:: for subcommand ::2 subcommand::" $arg $subcommand
+ return 1
+ fi
+ fi
+ option_params+=$arg
+ done
+ # First parameter actually is the subcommand: delete it and shift
+ [[ $subcommand != '__empty' ]] && { option_params[1]=(); shift }
+
+ ### End parsing command-specific options
+
+ [[ "$option_params" == "" ]] && {
+ func "arg command: ::1 subcommand::" $subcommand
+ } || {
+ func "arg command: ::1 subcommand:: ::2 param::" $subcommand $option_params
+ }
+
+}
+
+# Later: process subcommand
+# case "$subcommand" in
+# help)
+# print "TODO: help"
+# ;;
+# __empty)
+# zdump
+# ;;
+
+# # Reject unknown command and suggest help
+# *)
+# _warning "Command \"::1 subcommand::\" not recognized." $subcommand
+# _message "Try -h for help."
+# return 1
+# ;;
+# esac
+
+# }}}
+
+# {{{ Helpers
+
+function helper.isfound isfound() {
+ command -v $1 1>/dev/null 2>/dev/null
+ return $?
+}
+
+# faster substitute for cat
+function helper.printfile printfile() {
+ print ${mapfile[$1]}
+}
+
+# }}} Helpers
+
+# {{{ Config
+
+# This is not a full config parser, but its a mechanism to read single
+# sections of configuration files that are separated using various
+# syntax methods. The only method supported is now org-mode whose
+# sections start with #+ . It fills in the global array
+# $config_section which can be read out to a file or interpreted in
+# memory, whatever syntax it may contain.
+
+vars+=(config_section_type)
+arrs+=(config_section)
+config_section_type=org-mode
+
+config.section_type() {
+ fn config.section.type
+ _type=$1
+ req=(_type)
+ ckreq || return $?
+
+ case $_type in
+ org-mode)
+ config_section_type=org-mode
+ ;;
+ *)
+ error "Unknown config type:$_type"
+ return 1
+ ;;
+ esac
+
+ act "$_type config section parser initialized"
+ return 0
+
+}
+
+# fills in contents of section in array config_section
+config.section_read() {
+ fn config.section.read
+ _file=$1
+ _section=$2
+ req=(_file _section)
+ freq=($_file)
+ ckreq || return $?
+
+ case $config_section_type in
+ org-mode)
+ _contents=`awk '
+BEGIN { found=0 }
+/^#\+ '"$_section"'$/ { found=1; next }
+/^#\+/ { if(found==1) exit 0 }
+/^$/ { next }
+{ if(found==1) print $0 }
+' $_file`
+
+ ;;
+ *)
+ error "Unknown config type:$_type"
+ ;;
+ esac
+
+ config_section=()
+ for c in ${(f)_contents}; do
+ config_section+=("$c")
+ done
+ return 0
+
+}
+
+# }}} Config
diff --git a/lib/zuper/zuper.init b/lib/zuper/zuper.init
@@ -0,0 +1,39 @@
+##########################
+# Zuper Init
+
+# initialize globals only after sourcing everything
+# since zlibs may contain more variable declarations
+for _v in $vars; do
+ typeset -h $_v
+done
+for _a in $arrs; do
+ typeset -aU $_a
+done
+for _m in $maps; do
+ typeset -A $_m
+done
+
+# reset defaults
+DEBUG=${DEBUG:-0}
+QUIET=${QUIET:-0}
+LOG=${LOG:-""}
+req=()
+freq=()
+last_act=()
+last_func=()
+last_notice=()
+tmpfiles=()
+config_section=()
+config_section_type=${config_section_type:-org-mode}
+
+option_subcommands[__empty]=""
+option_subcommands[__unknown]=""
+
+
+
+func "Zuper $zuper_version initialized"
+func "${#vars} global variables registered"
+func "${#arrs} global arrays registered"
+func "${#maps} global maps registered"
+
+
