golang embedded in bacon

[bigbass]

objective:
the scope of this is not to use golang
it is however if you want to mix golang and bacon
this is how its done


prestep
I wasn't sure what I needed at first
so I installed these to get started
maybe less is needed
then started compiling the examples

using apt-get

golang-17-go
golang-go
golang-any

tutorial
gobyexample.com/

has the source code to save time
github.com/mmcgrana/gobyexample



I wanted to learn golang just for fun
its fast and the easiest "new language" I have ever used
but if I can't mix it with bacon
game over for many things

so I figured out how to compile
go functions and run them in bacon !

bacon-calls-go.tar.gz (1.16 KB)
FIRST TIME DOCUMENTED !
GO AND BACON
took me some deep thought how to get it
working but its a proof of concept

just run the script

run-this-only
it will do everything you need

another language we could use with bacon if needed

Tip: I used a premade makefile as a standard we all know
but the go way to do it is not to use makefiles at all
go build -buildmode=c-archive -o libadder.a

from the command line


Joe

go build -buildmode=c-archive -o libadder.a
rm -f libadder.*
Converting 'bacon-go.bac'... done, 20 lines were processed in 0.048 seconds.
Compiling 'bacon-go.bac'... gcc -c bacon-go.bac.c
gcc -o bacon-go bacon-go.bac.o -lbacon -L. -lm -ladder -lpthread
Done, program 'bacon-go' ready.


BaCon says: about to call a Go function called GoAdder
Go says: adding 1 and 7
BaCon says: Go calculated our total = 8

[vovchik]

Dear Joe,

Nice work and thanks. Everything compiled fine on Mint (haven't yet tested on RPI3). While I don't know Go, it is good to have it in the arsenal.The ar lib created is huge, however (over 2 MB), and the resulting Bacon binary is 1.2 MB, so we must be loading everything there, including the kitchen sink. In c it would probably be a 3kB binary, so some kind of optimization is really needed. Food for thought.

With kind regards,
vovchik

[bigbass]

Hello vovchik

thanks for testing and your comments

there are pros and cons
development time vs binary size

you can also run go lang as a script
while testing without compiling a binary
this is a big time and space saver just text files
no compression needed

the main goal I was shooting for is how
we could run golang with bacon

of course we will find better options
and better uses along the way
what caught my attention was making a html parser
it has already been done in golang

this is very interesting what could be done with go
gobot.io/

need to set a path for downloads
setup download directory to install projects
export GOPATH=/home/pi/gocode

here is a new script to compile and strip
the binary and upx it if needed
the makefile is not needed anymore

#!/bin/sh
# simple automatic script by bigbass

# keep it simple do the work to build the static file
# and keep the steps clear to read
cd adder
go build -ldflags="-s -w" -buildmode=c-archive -o libadder.a


cp libadder.h libadder.a ../BACON
rm -f libadder.*


#compile the bacon file for you
cd ../BACON
bacon bacon-go.bac

#needed only during compile time
#clean up static lib and header  after compile
rm -f libadder.*


# if heavy compression is needed
# sudo apt-get install upx
#compress
#upx --brute bacon-go
#decompress
#upx -d  bacon-go

xterm -bg WHITE -fg BLACK -hold -e ./bacon-go



[vovchik]

Dear Joe,

You may have seen this already: go-link. I am trying to digest it.

With kind regards,
vovchik

[bigbass]

hello vovchik

thanks for the link it has a lot of good information
I saw that after using another link


what I was thinking and looking for
yes, there are many ways to do something
what I didn't want to do was use the old
hug.so lib way (like when we started with bacon)
and have to place it in the system
that it could be found and linked
for this reason I didn't try that road
that may be the better way in the end
but it looked more complex to me

and looked for a static way (the way that we now link with C++)

to be transparent in the documentation part
github.com/draffensperger/go-interlang
was the link I finally settled on using for a static lib

porting c code to bacon I thought was the best way
it should work and if you go that road that I took
when you port to bacon it throws many errors
that I finally fixed adding ptheads to get it to compile
since there is no (how to bacon for this ) I thought to
try to make the road easier for the next guy going down that road

Joe

[alexfish]

Hi Vovchik

I tried the above link
go-link

and get this

BR
Alex

Sorted : try signing up with mobile phone number = not register :: then click browser <back:

Now have the page::

Attachments:

[bigbass]

Hello Guys


An html parser is always a good tool to have
even more now that we have webkit

I wont be posting many go examples here
but I will post just one
so that you can see why I started this thread

that we can have other tools at hand
and use them in bacon by embedding them shown how
in the above posts
Really an index2text
index2html-src.tar.gz (12.04 KB)

Joe