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Used
https://github.com/git/git/blob/7cc763aaa3f39c62e0b2d5520e9d2bd8e4f3c4b3/contrib/completion/git-completion.bash
as a reference. Learned how to set up completion for a custom subcommand
from:
https://github.com/bobthecow/git-flow-completion/blob/4180a3a0e1b286d5f35fefbea5adf5ce9875ecc3/git-flow-completion.bash
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I had forgotten when I wrote this, but the Bash help says:
> If N is omitted, the return status is that of the last command.
Meaning we don't need to explicitly return the code from the last
command as that's what happens by default.
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The `save` and `drop` commands both take an optional branch name to
operate on.
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And include a header comment containing a short description of the
program.
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Not using `--help` because Git uses this flag to open a `man` page for
the subcommand, and I don't have a `man` page.
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Some ideas or old versions of code that is no longer relevant. I've also
decided not to implement the TODO and have the list IDs change when you
change the list like in `git stash`, at least for now.
I'll keep the TODO in mind when I use the program and reevaluate to see
whether it makes sense to have fixed IDs.
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We don't really care about this backup file, so once the `sed` operation
is finished, remove it.
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We only care about the return code here. If `git rev-parse --verify` is
successful or if it fails to find a branch with the given name, it will
write output. We don't want this output to be printed, so send it to
`/dev/null`.
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In addition to letting you drop the current branch and a parameter with
the name of the branch, allow branches to be dropped by their ID if they
don't match an existing branch.
Extract the code that finds a branch in the database by its ID to a
function so it can be used by both the `checkout_branch` and
`drop_branch` functions.
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If the given ID doesn't correspond to a branch in our database, we
should exit with an error.
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When running:
$ git branch-list 2
we want to ensure the argument "2" in the example above is an integer.
If so, we take it to represent a branch-list ID. Otherwise an error code
should be returned.
Thanks to Peter Ho on StackOverflow for the neat Bash integer test:
https://stackoverflow.com/questions/2210349/bash-test-whether-string-is-valid-as-an-integer/19116862#19116862
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Don't add existing branches to the database. We don't want any duplicate
branch names cluttering the shortcut list.
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A Git add-on that stores a list of branch names and allows you to
quickly switch to any branch in the list.
This enables you to more quickly switch between branches that you're
working on or reviewing without having to either remember or look up the
beginnings of the names of the branches.
Currently provides basic functionality for saving and dropping branches
from the list, printing the list, and checking out a branch in the list.
The branch list "database" is stored in a text file in the `.git/info/`
directory local to the project. Perhaps worrisome to store an external
file in the internal Git directory, but this allows us to keep the
database local to the current project and maintain different databases
for different projects.
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