goc/cmd/install.go

/*
 Copyright 2020 Qiniu Cloud (qiniu.com)

 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"
	"log"
	"os"
	"os/exec"
	"strings"

	"github.com/qiniu/goc/pkg/build"
	"github.com/qiniu/goc/pkg/cover"
	"github.com/spf13/cobra"
)

var installCmd = &cobra.Command{
	Use:   "install",
	Short: "Do cover for all go files and execute go install command",
	Long: `
First of all, this install command will copy the project code and its necessary dependencies to a temporary directory, then do cover for the target in this temporary directory, finally go install command will be executed and binaries generated to their original place.

To pass origial go build flags to goc command, place them after "--", see examples below for reference.
`,
	Example: `
# Install all binaries with cover variables injected. The binary will be installed in $GOPATH/bin or $HOME/go/bin if directory existed.
goc install -- ./...

# Install the current binary with cover variables injected, and set the registry center to http://127.0.0.1:7777.
goc install --center=http://127.0.0.1:7777 

# Install the current binary with cover variables injected, and set necessary build flags: -ldflags "-extldflags -static" -tags="embed kodo".
goc build -- -ldflags "-extldflags -static" -tags="embed kodo"
`,
	Run: func(cmd *cobra.Command, args []string) {
		newgopath, newwd, tmpdir, pkgs := build.MvProjectsToTmp(target, args)
		doCover(cmd, args, newgopath, tmpdir)
		doInstall(args, newgopath, newwd, pkgs)
	},
}

func init() {
	installCmd.Flags().StringVarP(&center, "center", "", "http://127.0.0.1:7777", "cover profile host center")

	rootCmd.AddCommand(installCmd)
}

func doInstall(args []string, newgopath string, newworkingdir string, pkgs map[string]*cover.Package) {
	log.Println("Go building in temp...")
	newArgs := []string{"install"}
	newArgs = append(newArgs, args...)
	cmd := exec.Command("go", newArgs...)
	cmd.Dir = newworkingdir

	// Change the temp GOBIN, to force binary install to original place
	cmd.Env = append(os.Environ(), fmt.Sprintf("GOBIN=%v", build.FindWhereToInstall(pkgs)))
	if newgopath != "" {
		// Change to temp GOPATH for go install command
		cmd.Env = append(cmd.Env, fmt.Sprintf("GOPATH=%v", newgopath))
	}

	out, err := cmd.CombinedOutput()
	if err != nil {
		log.Fatalf("Fail to execute: go install %v. The error is: %v, the stdout/stderr is: %v", strings.Join(args, " "), err, string(out))
	}
	log.Printf("Go install successful. Binary installed in: %v", build.FindWhereToInstall(pkgs))
}