Go get and Fork – script helper workaround

Why

If you write some Golang code, from my point of view, one of biggest pitfall of this language is dependency management.

At the beginning, get library directly from git repository seems a good idea, but between package rules, versions, your pull requests, it becomes a mess quickly.

Some sources on this problem:
Article: Forking Golang repositories on GitHub and managing the import path

StackOverflow : Using forked package import in Go

My workaround

Then, why not automate this procedure ?
In your .bashrc add:

function gofork() {
  if [ $# -ne 2 ] || [ -z "$1" ] || [ -z "$2" ]; then
    echo 'Usage: gofork yourFork originalModule'
    echo 'Example: golang github.com/YourName/go-contrib github.com/heirko/go-contrib'
    return
  fi
   echo "Go get fork $1 and replace $2 in GOPATH: $GOPATH"
   go get $1
   go get $2
   currentDir=$PWD
   cd $GOPATH/src/$1
   remote1=$(git config --get remote.origin.url)
   cd $GOPATH/src/$2
   remote2=$(git config --get remote.origin.url)
   cd $currentDir
   rm -rf $GOPATH/src/$2
   mv $GOPATH/src/$1 $GOPATH/src/$2
   cd $GOPATH/src/$2
   git remote add their $remote2
   echo Now in $GOPATH/src/$2 origin remote is $remote1
   echo And in $GOPATH/src/$2 their remote is $remote2
   cd $currentDir
}

export -f gofork

This command do

  • a ‘go get’ on source and fork repositories
  • extract remote urls
  • replace source code by fork
  • add source remote to your fork repository in case you want pull from source

You can call this script from command line or directly from a script like this:

gofork github.com/heralight/baloo gopkg.in/h2non/baloo.v2

Npm et yarn – quelques fonctions utiles

Xrandr fix bad horizontal resolution with dual screen on laptop

Execute this script in .xprofile to fix crazy resolution on ubuntu 14 with 2 screen connected.

#!/bin/sh
# HDMI-0 == external screen
# LVDS1 is laptop screen
 
#check if HDMI-0 is connected
if (xrandr | grep "HDMI-0 connected" > /dev/null); then
  exec echo "HDMI-0 is connected!" &
  xrandr --output LVDS1 --off
  xrandr --output HDMI-0 --primary --mode 1920x1080
else
  exec echo "CRT1 isn't connected!"  &
  xrandr --output LVDS1 --primary --mode 1920x1080
fi

#if [ "$1" == "dual" ]; then
#  xrandr --output LVDS1 --mode 1920x1080 --below HDMI-0
#fi