play with git tags
Commands to create this rev history:
echo "first feature" > source_code.txt`
git add source_code.txt
git commit -a -m "first commit"
echo "first feature now working" > source_code.txt
git commit -a -m "first feature working"
git tag -m "first dev release" dev_1
echo "second feature in dev" >> source_code.txt
git commit -a -m "second feature 1"
echo "second feature appears to work" >> source_code.txt
git commit -a -m "second feature 2"
git push --set-upstream origin master
git push --tags
git checkout dev_1
At this point we are in "detached HEAD" state
git tag -m "first QA release" qa_1
git push --tags
...but we can still create and push new tags that point to the same commit we checked out. qa_1 is exactly the same code as dev_1
git checkout master
This returns us to a normal non-detached HEAD state and development can continue.
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