Monday 24 August 2020

Micro-optimisation #6587: Git push to Github

I've said it before; sometimes the best automations are the tiny ones that save a few knob-twirls, keystrokes or (as in this case) a drag-copy-paste, each and every day.

It's just a tiny thing, but I like it when a workflow gets streamlined. If you work on a modern Github-hosted codebase with a Pull-Request-based flow, you'll spend more than a few seconds a week looking at this kind of output, which happens the first time you try to git push to a remote that doesn't have your branch:

mymac:foo john$ git push
fatal: The current branch red-text has no upstream branch.
To push the current branch and set the remote as upstream, use

    git push --set-upstream origin red-text

mymac:foo john$ git push --set-upstream origin red-text
Counting objects: 24, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (16/16), done.
Writing objects: 100% (24/24), 2.79 KiB | 953.00 KiB/s, done.
Total 24 (delta 9), reused 0 (delta 0)
remote: Resolving deltas: 100% (9/9), completed with 9 local objects.
remote: Create a pull request for 'red-text' on GitHub by visiting:
 * [new branch]        red-text -> red-text
Branch 'red-text' set up to track remote branch 'red-text' from 'origin'.

The desired workflow is clear and simple:

  • Push and set the upstream as suggested
  • Grab the suggested PR URL
  • Use the Mac open command to launch a new browser window for that URL
... so lets automate it!


# Try and push, catch the suggested action if there is one:

SUGG=`git push --porcelain 2>&1 | grep "git push --set-upstream origin"` 

if [[ ! -z ${SUGG} ]]; then
  echo "Doing suggested: ${SUGG}"

  URL=`${SUGG} --porcelain 2>&1 | grep remote | grep new | grep -o "https.*"`

  if [[ ! -z ${URL} ]]; then
    echo "Opening URL ${URL}"
    open $URL
    echo "No PR URL found, doing nothing"

I run it using this alias:

alias gpgh='~/bin/'

So a typical execution looks like this:

mymac:foo john$ gpgh
Doing suggested:     git push --set-upstream origin mybranch
Opening URL        
mymac:foo john$ 

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