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vendor.go
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vendor.go
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// Copyright (c) 2016 Pulcy.
//
// 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 golang
import (
"os"
"path/filepath"
"time"
log "github.com/op/go-logging"
"github.com/pulcy/pulsar/cache"
"github.com/pulcy/pulsar/util"
)
const (
DefaultVendorDir = "vendor"
)
type VendorFlags struct {
Package string
VendorDir string
}
// Get executes a `go get` with a cache support.
func Vendor(log *log.Logger, flags *VendorFlags) error {
// Get cache dir
cachedir, _, err := cache.Dir(flags.Package, time.Millisecond)
if err != nil {
return maskAny(err)
}
// Cache has become invalid
log.Info(updating("Fetching %s"), flags.Package)
// Execute `go get` towards the cache directory
if err := runGoGet(log, flags.Package, cachedir); err != nil {
return maskAny(err)
}
// Sync with vendor dir
if err := os.MkdirAll(flags.VendorDir, 0777); err != nil {
return maskAny(err)
}
if err := util.ExecPrintError(nil, "rsync", "--exclude", ".git", "-a", filepath.Join(cachedir, srcDir)+"/", flags.VendorDir); err != nil {
return maskAny(err)
}
return nil
}