Since the completion directives will be used for all shells, and that
these names will be consumed by users, this is a more appropriate name.
Signed-off-by: Marc Khouzam <marc.khouzam@montreal.ca>
This commit allows programs using Cobra to code their custom completions
in Go instead of Bash.
The new ValidArgsFunction field is added for commands, similarly to
ValidArgs. For flags, the new function
Command.RegisterFlagCompletionFunc() is added.
When either of the above functions is used, the bash completion script
will call the new hidden command '__complete', passing it all
command-line arguments. The '__complete' command will call
the function specified by Command.ValidArgsFunction or by
Command.RegisterFlagCompletionFunc to obtain completions from the
program itself.
Signed-off-by: Marc Khouzam <marc.khouzam@montreal.ca>
Issue Reference: https://github.com/spf13/cobra/issues/1056https://github.com/spf13/cobra/pull/922 introduced a new error
type that emitted when a command was not runnable. This caused
all commands w/o a run function set to error w/ that message and a status code of 1.
This change reverts the addition of that new error. Similar
functionality can be accomplished by leveraging RunE.
* update Example in README.md (#769)
* specify the color as the required arg (#777)
* command: fix typo in docstring of InheritedFlags (#779)
* add istio to the list of projects built with Cobra (#786)
* remove redundant 'else' (#806)
* add mattermost-server as a project built with Cobra (#824)
* update README.md (#826)
Fix the comment: consistent with others
* add uber/prototool as a project built with Cobra (#831)
* fix(ci): use go vet, update to Go 1.12, update shellcheck to v0.4.6 (#832)
* add go.mod and go.sum (#833)
* chore(travis): move 'diff' job to separate stage in Travis (#839)
* chore(travis): use language configuration list instead of explicit entries in matrix.include (#839)
* chore(travis): update shellcheck-docker to v0.6.0 (#839)
* update(README.md): separate projects by commas, instead of using a list
* chore: update viper to v1.3.2 and go-md2man to v1.0.10
* fix: convert CRLF to LF when comparing files
* use kyoh86/richgo to provide colored test outputs
* Add `CalledAs` method to Command (w/ tests)
The `CalledAs` method returns the name of the command or alias that
invoked the command -- as long as the command was actually invoked.
Otherwise, it returns the empty string.
The opens up possibilies for commands to behave differently based on
which alias invoked the command (in the same vein as Linux programs
which adjust their behavior based on the value of argv[0]).
* Fixed formatting
Make it so that, in the case that the root command is not runnable
but has subcommands, specifying a '--version' flag will still
run the "version" behavior.
Fix some typos in README and comments.
Move arg validation to after flag validation so that the help flag is run first.
Pass the same args to ValidateArgs as the Run methods receive.
Update README.
Signed-off-by: Daniel Nephin <dnephin@gmail.com>
* Fix tests so they give correct args
Shell already deletes all quotes and unite args under quotes, so we
don't need to test it.
* Simplify stripFlags
* Fix 'unused' and 'gosimple' complaints
* Delete Eq, Gt, appendIfNotPresent and trim functions
* Add "[flags]" in UseLine
* Simplify other functions
* Simplify templates
Minor performance improvement.
Benchmark for command with 4 flags and one child command:
benchmark old ns/op new ns/op delta
BenchmarkCmdUsageFunc-4 335860 319290 -4.93%
benchmark old allocs new allocs delta
BenchmarkCmdUsageFunc-4 562 543 -3.38%
benchmark old bytes new bytes delta
BenchmarkCmdUsageFunc-4 21623 21037 -2.71%
