git advanced alias completion

user_1771778 0
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I have advanced alias's in my .gitconfig file that I would like to support tab completion.

For example, this simple alias allows for tab completion of refs (assuming the git completions have been sourced):

[alias]
  co = checkout

However, this does not:

[alias]
  co = "!f() { git checkout \"${@}\"; }; f}"

Is there any way to add support for tab completion to these alias's?

completion git
1 Answers

It turns out that it has been possible to add tab-completion support to a "complex alias" since at least git v2.1.0. Per git-completion.bash:

# If you use complex aliases of form '!f() { ... }; f', you can use the null
# command ':' as the first command in the function body to declare the desired
# completion style.  For example '!f() { : git commit ; ... }; f' will
# tell the completion to use commit completion.  This also works with aliases
# of form "!sh -c '...'".  For example, "!sh -c ': git commit ; ... '".

Therefore, this works:

  co = "!f() { : git checkout ; git checkout \"${@}\"; }; f}"

Note that the pattern, !f is significant. This does not work: ! f (inserted space, although the name of the function is not significant).

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