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author | Dan Duvall <dduvall@wikimedia.org> | 2018-03-06 20:31:58 -0800 |
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committer | Dan Duvall <dduvall@wikimedia.org> | 2018-03-19 15:55:16 -0700 |
commit | eb9b69dd3d710cb7afa1dfb6e23a5987842b21cc (patch) | |
tree | 049b11cc885e4e9f54aac8981c91a1bf3620e7af /vendor/github.com/pborman/getopt/bool.go | |
parent | 6896e655eb5cc88b90e66979bc2d862eb92cbb9f (diff) | |
download | blubber-eb9b69dd3d710cb7afa1dfb6e23a5987842b21cc.tar.gz |
Allow for configuration policies
Summary:
Implements a rough interface for validating configuration against
arbitrary policy rules. Policies are provided as YAML and passed via the
command line as file paths or remote URIs.
The format of policies is:
enforcements:
- path: <path>
rule: <rule>
Where `<path>` is a YAML-ish path to a config field and `<rule>` is any
expression our config validator understands (expressions built in by the
validator library and custom tags defined in `config.validation.go`).
Example policy:
enforcements:
- path: variants.production.base
rule: oneof=debian:jessie debian:stretch
- path: variants.production.runs.as
rule: ne=foo
- path: variants.production.node.dependencies
rule: isfalse
Command flag parsing was implemented in `main.go` to support the new
`--policy=uri` flag and improve existing handling of `--version` and the
usage statement.
Test Plan: Run `go test ./...`.
Reviewers: thcipriani, demon, hashar, mmodell, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D999
Diffstat (limited to 'vendor/github.com/pborman/getopt/bool.go')
-rw-r--r-- | vendor/github.com/pborman/getopt/bool.go | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/vendor/github.com/pborman/getopt/bool.go b/vendor/github.com/pborman/getopt/bool.go new file mode 100644 index 0000000..37ce019 --- /dev/null +++ b/vendor/github.com/pborman/getopt/bool.go @@ -0,0 +1,74 @@ +// Copyright 2013 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package getopt + +import ( + "fmt" + "strings" +) + +type boolValue bool + +func (b *boolValue) Set(value string, opt Option) error { + switch strings.ToLower(value) { + case "", "1", "true", "on", "t": + *b = true + case "0", "false", "off", "f": + *b = false + default: + return fmt.Errorf("invalid value for bool %s: %q", opt.Name(), value) + } + return nil +} + +func (b *boolValue) String() string { + if *b { + return "true" + } + return "false" +} + +// Bool creates a flag option that is a bool. Bools normally do not take a +// value however one can be assigned by using the long form of the option: +// +// --option=true +// --o=false +// +// Its value is case insenstive and one of true, false, t, f, on, off, t and 0. +func Bool(name rune, helpvalue ...string) *bool { + return CommandLine.Bool(name, helpvalue...) +} + +func (s *Set) Bool(name rune, helpvalue ...string) *bool { + var p bool + s.BoolVarLong(&p, "", name, helpvalue...) + return &p +} + +func BoolLong(name string, short rune, helpvalue ...string) *bool { + return CommandLine.BoolLong(name, short, helpvalue...) +} + +func (s *Set) BoolLong(name string, short rune, helpvalue ...string) *bool { + var p bool + s.BoolVarLong(&p, name, short, helpvalue...) + return &p +} + +func BoolVar(p *bool, name rune, helpvalue ...string) Option { + return CommandLine.BoolVar(p, name, helpvalue...) +} + +func (s *Set) BoolVar(p *bool, name rune, helpvalue ...string) Option { + return s.BoolVarLong(p, "", name, helpvalue...) +} + +func BoolVarLong(p *bool, name string, short rune, helpvalue ...string) Option { + return CommandLine.BoolVarLong(p, name, short, helpvalue...) +} + +func (s *Set) BoolVarLong(p *bool, name string, short rune, helpvalue ...string) Option { + return s.VarLong((*boolValue)(p), name, short, helpvalue...).SetFlag() +} |