Hi, my name's Luke!
Today, I had a problem merging a stash after immediately creating it.
This is exactly what I did!
git stash save --keep-index
git stash pop
And BAM! Merge conflict! This was especially weird because my file had
this in it (taken directly from my code!)
<<<<<<< Updated upstream
*
* It should be used and passed along to member objects by GameStates!
*
=======
*
* It should be used and passed along to member objects by GameStates!
*
>>>>>>> Stashed changes
They are exactly the same!
Oh, by the way, I should mention that I did not edit any hunks to get
the index the way I wanted it, I have read that doing that causes
merge conflicts similar to this!
Then I got a hunch! I realized that git will refrain from applying a
hunk if it finds it already was applied exactly (that's correct
right?)... So I thought, maybe the patches are similar (represent the
same changes) but aren't *exactly* the same.
I was right!
After saving the stash I take a look at the diff: (git stash show -p)
/*!
- * \brief The default font renderer, global to all who have a pointer to
- * the Game class.
+ * \brief The font renderer implementation, obtained from the config file.
+ *
+ * It should be used and passed along to member objects by GameStates!
*
- * It need not be used at all!
+ * \note It can be cached, but not between GameStates, meaning it should be
+ * cached again every time a new GameState is constructed!
*/
After that, I take a look at the diff in my index: (git diff --staged)
/*!
- * \brief The default font renderer, global to all who have a pointer to
- * the Game class.
+ * \brief The font renderer implementation, obtained from the config file.
*
- * It need not be used at all!
+ * It should be used and passed along to member objects by GameStates!
+ *
+ * \note It can be cached, but not between GameStates, meaning it should be
+ * cached again every time a new GameState is constructed!
*/
Aha! A difference, a difference so tiny it went unnoticed by me, but not by git!
Now the housekeeping:
What I wanted to do:
Apply a stash on top of a 'kept' index.
What I did:
git stash save --keep-index
git stash pop
What I saw happen:
A merge conflict between the same changes (see above).
What I expected to see:
No merge conflict.
How are these different:
The conflict, which shouldn't happen since the changes introduced were the same!
-------------------------------------------------
It seems to me like the stash command is using a slightly different
diff algorithm...
Can anyone explain to me what's going on under the hood so I can
understand this subtle difference? Does anyone know?
Thanks in advance, I'm sure you all will be very helpful!
- Luke
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