github.com/joshdk/godel@v0.0.0-20170529232908-862138a45aee/apps/distgo/cmd/dist/osarchbindist.go (about)

     1  // Copyright 2016 Palantir Technologies, Inc.
     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 dist
    16  
    17  import (
    18  	"fmt"
    19  	"io"
    20  	"os"
    21  	"path"
    22  	"sort"
    23  
    24  	"github.com/palantir/pkg/specdir"
    25  	"github.com/pkg/errors"
    26  	"github.com/termie/go-shutil"
    27  
    28  	"github.com/palantir/godel/apps/distgo/cmd/build"
    29  	"github.com/palantir/godel/apps/distgo/params"
    30  	"github.com/palantir/godel/apps/distgo/pkg/osarch"
    31  )
    32  
    33  type osArchsBinDister params.OSArchsBinDistInfo
    34  
    35  func (o *osArchsBinDister) NumArtifacts() int {
    36  	return 1
    37  }
    38  
    39  func (o *osArchsBinDister) ArtifactPathsInOutputDir(buildSpec params.ProductBuildSpec) []string {
    40  	var outPaths []string
    41  	for _, osArch := range o.OSArchs {
    42  		outPaths = append(outPaths, fmt.Sprintf("%s-%s-%s.tgz", buildSpec.ProductName, buildSpec.ProductVersion, osArch.String()))
    43  	}
    44  	return outPaths
    45  }
    46  
    47  func (o *osArchsBinDister) Dist(buildSpecWithDeps params.ProductBuildSpecWithDeps, distCfg params.Dist, outputProductDir string, spec specdir.LayoutSpec, values specdir.TemplateValues, stdout io.Writer) (Packager, error) {
    48  	buildSpec := buildSpecWithDeps.Spec
    49  	for _, osArch := range o.OSArchs {
    50  		if err := verifyDistTargetSupported(osArch, buildSpecWithDeps); err != nil {
    51  			return nil, err
    52  		}
    53  	}
    54  
    55  	// each index holds all of the files required for the OS/Arch at the corresponding index
    56  	outputPathsForOSArchs := make([][]string, len(o.OSArchs))
    57  
    58  	for i, osArch := range o.OSArchs {
    59  		// copy executable for current product
    60  		dst, err := copyArtifactForOSArch(outputProductDir, buildSpec, osArch)
    61  		if err != nil {
    62  			return nil, err
    63  		}
    64  		outputPathsForOSArchs[i] = append(outputPathsForOSArchs[i], dst)
    65  	}
    66  
    67  	for i, osArch := range o.OSArchs {
    68  		// copy executables for dependent products
    69  		for _, currDepSpec := range buildSpecWithDeps.Deps {
    70  			dst, err := copyArtifactForOSArch(outputProductDir, currDepSpec, osArch)
    71  			if err != nil {
    72  				return nil, err
    73  			}
    74  			outputPathsForOSArchs[i] = append(outputPathsForOSArchs[i], dst)
    75  		}
    76  	}
    77  
    78  	outputArtifactPaths := FullArtifactsPaths(o, buildSpec, distCfg)
    79  	artifactToInputPaths := make(map[string][]string)
    80  	for i, currPaths := range outputPathsForOSArchs {
    81  		artifactToInputPaths[outputArtifactPaths[i]] = currPaths
    82  	}
    83  	return tgzPackager(outputArtifactPaths, artifactToInputPaths), nil
    84  }
    85  
    86  func (o *osArchsBinDister) DistPackageType() string {
    87  	return "tgz"
    88  }
    89  
    90  func verifyDistTargetSupported(osArch osarch.OSArch, buildSpecWithDeps params.ProductBuildSpecWithDeps) error {
    91  	spec := buildSpecWithDeps.Spec
    92  	if !osArchInBuildSpec(osArch, spec) {
    93  		return errors.Errorf("The OS/Arch specified for the distribution of a product must be specified as a build target for the product, "+
    94  			"but product %s does not specify %s as one of its build targets. Current build targets: %v", spec.ProductName, osArch, spec.Build.OSArchs)
    95  	}
    96  
    97  	var keys []string
    98  	for k := range buildSpecWithDeps.Deps {
    99  		keys = append(keys, k)
   100  	}
   101  	sort.Strings(keys)
   102  	for _, currKey := range keys {
   103  		currSpec := buildSpecWithDeps.Deps[currKey]
   104  		if !osArchInBuildSpec(osArch, spec) {
   105  			return errors.Errorf("The OS/Arch specified for the distribution of a product must be specified as a build target for the product, "+
   106  				"but product %s (which is a dependent product of %s) does not specify %s as one of its build targets. Current build targets: %v", currSpec.ProductName, buildSpecWithDeps.Spec.ProductName, osArch, currSpec.Build.OSArchs)
   107  		}
   108  	}
   109  	return nil
   110  }
   111  
   112  func osArchInBuildSpec(osArch osarch.OSArch, spec params.ProductBuildSpec) bool {
   113  	found := false
   114  	for _, currBuildOSArch := range spec.Build.OSArchs {
   115  		if currBuildOSArch == osArch {
   116  			found = true
   117  			break
   118  		}
   119  	}
   120  	return found
   121  }
   122  
   123  func copyArtifactForOSArch(outputProductDir string, buildSpec params.ProductBuildSpec, osArch osarch.OSArch) (string, error) {
   124  	artifactPath, ok := build.ArtifactPaths(buildSpec)[osArch]
   125  	if !ok {
   126  		return "", errors.Errorf("no build artifacts exist for %s", osArch)
   127  	}
   128  	dst := path.Join(outputProductDir, osArch.String(), build.ExecutableName(buildSpec.ProductName, osArch.OS))
   129  
   130  	if err := os.MkdirAll(path.Dir(dst), 0755); err != nil {
   131  		return "", errors.Wrapf(err, "failed to create output directory for artifact")
   132  	}
   133  	if _, err := shutil.Copy(artifactPath, dst, false); err != nil {
   134  		return "", errors.Wrapf(err, "failed to copy build artifact from %s to %s", artifactPath, dst)
   135  	}
   136  	return dst, nil
   137  }