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global.go
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global.go
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// Copyright 2016 Palantir Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"strings"
"github.com/palantir/pkg/cli/flag"
"github.com/palantir/godel/apps/distgo/pkg/osarch"
)
const (
ProductsParamName = "products"
OSArchFlagName = "os-arch"
)
var (
ProductsParam = flag.StringSlice{
Name: ProductsParamName,
Usage: "Products for which action should be performed",
Optional: true,
}
OSArchFlag = flag.StringFlag{
Name: OSArchFlagName,
Usage: "GOOS-GOARCH for the command (comma-separate for multiple values)",
}
)
type OSArchFilter []osarch.OSArch
// Matches returns true if the provided osArch is in the filter list or if the filter list is empty.
func (f OSArchFilter) Matches(osArch osarch.OSArch) bool {
if len(f) == 0 {
return true
}
for _, curr := range f {
if curr == osArch {
return true
}
}
return false
}
func NewOSArchFilter(osArchs string) (OSArchFilter, error) {
if osArchs == "" {
return nil, nil
}
var filterArchs []osarch.OSArch
var invalidValues []string
// if value was provided for flag, parse
for _, osArchStr := range strings.Split(osArchs, ",") {
if osArch, err := osarch.New(osArchStr); err == nil {
filterArchs = append(filterArchs, osArch)
} else {
invalidValues = append(invalidValues, osArchStr)
}
}
if len(invalidValues) > 0 {
return nil, fmt.Errorf("invalid os-arch values: %v", invalidValues)
}
return OSArchFilter(filterArchs), nil
}