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51 lines
1.4 KiB
Text
51 lines
1.4 KiB
Text
title = Step by step
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cards = checkout commit-auto
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[description]
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Welcome to today's lesson! We're going to learn how to make commits with more precision!
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Have a look at these two timelines. They have exactly the same outcome. But one of them makes it much easier to figure out what happened.
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[win]
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# Right! Having each change in its own commit makes it easier to understand what's going on! Let's learn how to do that!
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git branch --show-current | grep step-by-step
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[setup]
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echo "A small, but heavy glass ball." > ball
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echo "A thin book, that's standing upright." > book
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echo "A candle, burning with a blue flame." > candle
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echo "A smoke detector. It's absolutely silent." > smoke_detector
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git add .
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git commit -m "The beginning"
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git branch -M all-at-once
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echo "The ball is now touching the book." > ball
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echo "The book has fallen over." > book
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echo "The candle has been blown out." > candle
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git commit -am "The end"
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git checkout HEAD^
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git checkout -b step-by-step
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echo "The ball is now touching the book." > ball
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git commit -am "The ball rolls towards the book"
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echo "The book has fallen over." > book
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git commit -am "The book falls over"
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echo "The candle has been blown out." > candle
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git commit -am "The book blows out the candle"
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git checkout HEAD~3
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[win]
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# Pick the timeline that's clearer, and make the alarm go off!
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git show step-by-step:smoke_detector | tail -n 1 | grep -v "absolutely silent"
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