Hi Git community.
I have a question about reflog and "git-rebase(1) Manual Page".
As the man reads
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git rebase [-i | --interactive] [options] [--exec <cmd>] [--onto <newbase>]
[<upstream> [<branch>]]
...
If <branch> is specified, git rebase will perform an automatic git checkout <branch>
before doing anything else. Otherwise it remains on the current branch.
------------------------- cut here -----------------------
So I think that
git rebase master b1
is the same as
git checkout b1 && git rebase master
but in the reflog I see that the 'git rebase master b1' does not write 'git checkout b1'
into the reflog.
The question is - why there is no records in the reflog about ' automatic git checkout <branch>'?
Or maybe git's man page is not accurate about this step?
Here is my test:
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mkdir git_rebase
cd git_rebase/
git init
echo "master 1" > file.txt
git add file.txt
git commit -m "master 1"
git checkout -b "b1"
echo "branch b1" > file_b1.txt
git add file_b1.txt
git commit -m "b1 1"
git checkout master
echo "master 2" >> file.txt
cat file.txt
git add file.txt
git commit -m "master 2"
# make a copy of repo directory (tar -cf ../repo_dir.tar .)
tar -cf ../git_rebase.tar .
# git rebase <upstream> <branch>
git reflog
git rebase master b1
git reflog
# restore the repo
cd ..
rm -Rf git_rebase
mkdir git_rebase && cd git_rebase && tar -xf ../git_rebase.tar
# git checkout <branch> && git rebase <upstream>
git reflog
git checkout b1 && git rebase master
git reflog
------------------------- cut here -----------------------
# In the case 'git rebase master b1'
# 'git reflog' shows
cac9cc7 (HEAD -> b1) HEAD@{0}: rebase finished: returning to refs/heads/b1
cac9cc7 (HEAD -> b1) HEAD@{1}: rebase: b1 1
29c7386 (master) HEAD@{2}: rebase: checkout master
29c7386 (master) HEAD@{3}: commit: master 2
5cb30a2 HEAD@{4}: checkout: moving from b1 to master
e75c314 HEAD@{5}: commit: b1 1
5cb30a2 HEAD@{6}: checkout: moving from master to b1
5cb30a2 HEAD@{7}: commit (initial): master 1
# In the case ' git checkout b1 && git rebase master '
c08d270 (HEAD -> b1) HEAD@{0}: rebase finished: returning to refs/heads/b1
c08d270 (HEAD -> b1) HEAD@{1}: rebase: b1 1
29c7386 (master) HEAD@{2}: rebase: checkout master
e75c314 HEAD@{3}: checkout: moving from master to b1 /* This line is absent in case of 'git rebase master b1' */
29c7386 (master) HEAD@{4}: commit: master 2
5cb30a2 HEAD@{5}: checkout: moving from b1 to master
e75c314 HEAD@{6}: commit: b1 1
5cb30a2 HEAD@{7}: checkout: moving from master to b1
5cb30a2 HEAD@{8}: commit (initial): master 1
Best regards and many thanks for your work.
Evgeny.
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