forked from FDio/govpp
/
input.go
118 lines (103 loc) · 3 KB
/
input.go
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// Copyright (c) 2023 Cisco and/or its affiliates.
//
// 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 main
import (
"os"
"path"
"path/filepath"
"strings"
"time"
"github.com/sirupsen/logrus"
"github.com/americanbinary/govpp/binapigen/vppapi"
)
func resolveVppInput(input string) (*vppapi.VppInput, error) {
if input == "" {
logrus.Tracef("VPP input is not set, trying to detect automatically")
input = detectVppApiInput()
}
logrus.Tracef("resolving VPP input: %q\n%s", input, strings.Repeat("-", 100))
t := time.Now()
vppInput, err := vppapi.ResolveVppInput(input)
if err != nil {
return nil, err
}
tookSec := time.Since(t).Seconds()
logrus.Tracef("resolved VPP input %q in %.3fs\n%s\n - API dir: %s\n - VPP Version: %s\n - Files: %v",
input, tookSec, strings.Repeat("-", 100), vppInput.ApiDirectory, vppInput.Schema.Version, len(vppInput.Schema.Files))
return vppInput, nil
}
func detectVppApiInput() string {
var (
relPathSrcVpp = filepath.Join(".", "src", "vpp")
relPathBuildVppApi = filepath.Join(".", "build-root", "install-vpp-native", "vpp", "share", "vpp", "api")
)
// check if VPP API files are built
if dirExists(relPathBuildVppApi) {
return relPathBuildVppApi
}
// check if within the VPP repository
if dirExists(relPathSrcVpp) {
return relPathBuildVppApi
}
// check if within VPP API directory
if dirExists("core", "plugins") {
return "."
}
// check if VPP is installed on the system
if dirExists(vppapi.DefaultDir) {
return vppapi.DefaultDir
}
// if none of the above conditions are met, return the current working directory
return "."
}
func dirExists(dir ...string) bool {
for _, d := range dir {
if _, err := os.Stat(d); err != nil {
return false
}
}
return true
}
func filterFilesByPaths(allapifiles []vppapi.File, paths []string) []vppapi.File {
var apifiles []vppapi.File
// filter files
added := make(map[string]bool)
for _, p := range paths {
var found bool
for _, apifile := range allapifiles {
if added[apifile.Path] {
continue
}
if fileMatchesPath(apifile, p) {
apifiles = append(apifiles, apifile)
found = true
added[apifile.Path] = true
}
}
if !found {
logrus.Debugf("path %q did not match any file", p)
}
}
return apifiles
}
func fileMatchesPath(apifile vppapi.File, arg string) bool {
if apifile.Name == strings.TrimSuffix(arg, ".api") {
return true
}
if apifile.Path == arg {
return true
}
dir, file := path.Split(apifile.Path)
return file == arg || path.Clean(dir) == arg
}