The git-submodule man page says that the -b option to "git-submodule
add" is the "Branch of repository to add as submodule."
I get the error "fatal: A branch named '1.x' already exists." when I try
to use "git submodule add -b". A sample session is below. What am I
doing wrong?
tolsen@neurofunk:~/git$ mkdir submodule-branch
tolsen@neurofunk:~/git$ cd submodule-branch
tolsen@neurofunk:~/git/submodule-branch$ mkdir sub
tolsen@neurofunk:~/git/submodule-branch$ cd sub
tolsen@neurofunk:~/git/submodule-branch/sub$ git init
Initialized empty Git repository in
/home/tolsen/git/submodule-branch/sub/.git/
tolsen@neurofunk:~/git/submodule-branch/sub$ echo 1 > file
tolsen@neurofunk:~/git/submodule-branch/sub$ git add file
tolsen@neurofunk:~/git/submodule-branch/sub$ git commit -m v1
Created initial commit d5c185a: v1
1 files changed, 1 insertions(+), 0 deletions(-)
create mode 100644 file
tolsen@neurofunk:~/git/submodule-branch/sub$ echo 2 > file
tolsen@neurofunk:~/git/submodule-branch/sub$ git add file
tolsen@neurofunk:~/git/submodule-branch/sub$ git commit -m v2
Created commit fb864b2: v2
1 files changed, 1 insertions(+), 1 deletions(-)
tolsen@neurofunk:~/git/submodule-branch/sub$ git log
commit fb864b2d4d9dacd87e55d0be970baa5fc6a0972c
Author: Tim Olsen <tolsen@xxxxxxxxxxxx>
Date: Fri Aug 1 16:21:09 2008 -0400
v2
commit d5c185a7ea91b66b5df524b21bbe0daf40a456f4
Author: Tim Olsen <tolsen@xxxxxxxxxxxx>
Date: Fri Aug 1 16:21:03 2008 -0400
v1
tolsen@neurofunk:~/git/submodule-branch/sub$ git checkout -b 1.x d5c185a7
Switched to a new branch "1.x"
tolsen@neurofunk:~/git/submodule-branch/sub$ echo 1.1 > file
tolsen@neurofunk:~/git/submodule-branch/sub$ git add file
tolsen@neurofunk:~/git/submodule-branch/sub$ git commit -m v1.1
Created commit d9868c5: v1.1
1 files changed, 1 insertions(+), 1 deletions(-)
tolsen@neurofunk:~/git/submodule-branch/sub$ git log
commit d9868c5dc837404834b44eca6d21930c4f352127
Author: Tim Olsen <tolsen@xxxxxxxxxxxx>
Date: Fri Aug 1 16:21:58 2008 -0400
v1.1
commit d5c185a7ea91b66b5df524b21bbe0daf40a456f4
Author: Tim Olsen <tolsen@xxxxxxxxxxxx>
Date: Fri Aug 1 16:21:03 2008 -0400
v1
tolsen@neurofunk:~/git/submodule-branch/sub$ cd ..
tolsen@neurofunk:~/git/submodule-branch$ mkdir super
tolsen@neurofunk:~/git/submodule-branch$ cd super
tolsen@neurofunk:~/git/submodule-branch/super$ git init
Initialized empty Git repository in
/home/tolsen/git/submodule-branch/super/.git/
tolsen@neurofunk:~/git/submodule-branch/super$ echo dummy > dummy
tolsen@neurofunk:~/git/submodule-branch/super$ git add dummy
tolsen@neurofunk:~/git/submodule-branch/super$ git commit -m dummy
Created initial commit f1c41b6: dummy
1 files changed, 1 insertions(+), 0 deletions(-)
create mode 100644 dummy
tolsen@neurofunk:~/git/submodule-branch/super$ cd ..
tolsen@neurofunk:~/git/submodule-branch$ git clone super super2
Initialized empty Git repository in
/home/tolsen/git/submodule-branch/super2/.git/
tolsen@neurofunk:~/git/submodule-branch$ cd super2
tolsen@neurofunk:~/git/submodule-branch/super2$ git submodule add -b 1.x
~/git/submodule-branch/sub
Initialized empty Git repository in
/home/tolsen/git/submodule-branch/super2/sub/.git/
fatal: A branch named '1.x' already exists.
Unable to checkout submodule 'sub'
tolsen@neurofunk:~/git/submodule-branch/super2$ git status
# On branch master
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
#
# sub/
nothing added to commit but untracked files present (use "git add" to track)
tolsen@neurofunk:~/git/submodule-branch/super2$
Thanks,
Tim
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