github.skymusic.top/operator-framework/operator-sdk@v0.8.2/cmd/operator-sdk/internal/genutil/k8s.go (about)

     1  // Copyright 2018 The Operator-SDK Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package genutil
    16  
    17  import (
    18  	"fmt"
    19  	"os/exec"
    20  	"path/filepath"
    21  	"strings"
    22  
    23  	"github.com/operator-framework/operator-sdk/internal/pkg/scaffold"
    24  	"github.com/operator-framework/operator-sdk/internal/util/projutil"
    25  
    26  	log "github.com/sirupsen/logrus"
    27  )
    28  
    29  // K8sCodegen performs deepcopy code-generation for all custom resources under
    30  // pkg/apis.
    31  func K8sCodegen() error {
    32  	projutil.MustInProjectRoot()
    33  
    34  	wd := projutil.MustGetwd()
    35  	repoPkg := projutil.CheckAndGetProjectGoPkg()
    36  	srcDir := filepath.Join(wd, "vendor", "k8s.io", "code-generator")
    37  	binDir := filepath.Join(wd, scaffold.BuildBinDir)
    38  
    39  	genDirs := []string{
    40  		"./cmd/client-gen",
    41  		"./cmd/lister-gen",
    42  		"./cmd/informer-gen",
    43  		"./cmd/deepcopy-gen",
    44  	}
    45  	if err := buildCodegenBinaries(genDirs, binDir, srcDir); err != nil {
    46  		return err
    47  	}
    48  
    49  	gvMap, err := parseGroupVersions()
    50  	if err != nil {
    51  		return fmt.Errorf("failed to parse group versions: (%v)", err)
    52  	}
    53  	gvb := &strings.Builder{}
    54  	for g, vs := range gvMap {
    55  		gvb.WriteString(fmt.Sprintf("%s:%v, ", g, vs))
    56  	}
    57  
    58  	log.Infof("Running deepcopy code-generation for Custom Resource group versions: [%v]\n", gvb.String())
    59  
    60  	fdc := func(a string) error { return deepcopyGen(binDir, repoPkg, a, gvMap) }
    61  	if err = withHeaderFile(fdc); err != nil {
    62  		return err
    63  	}
    64  
    65  	log.Info("Code-generation complete.")
    66  	return nil
    67  }
    68  
    69  func deepcopyGen(binDir, repoPkg, hf string, gvMap map[string][]string) (err error) {
    70  	apisPkg := filepath.Join(repoPkg, scaffold.ApisDir)
    71  	args := []string{
    72  		"--input-dirs", createFQApis(apisPkg, gvMap),
    73  		"--output-file-base", "zz_generated.deepcopy",
    74  		"--bounding-dirs", apisPkg,
    75  		// deepcopy-gen requires a boilerplate file. Either use header or an
    76  		// empty file if header is empty.
    77  		"--go-header-file", hf,
    78  	}
    79  	cmd := exec.Command(filepath.Join(binDir, "deepcopy-gen"), args...)
    80  	if err = projutil.ExecCmd(cmd); err != nil {
    81  		return fmt.Errorf("failed to perform deepcopy code-generation: %v", err)
    82  	}
    83  	return nil
    84  }