github.com/goplus/igop@v0.25.0/cmd/internal/build/build.go (about)

     1  /*
     2   Copyright 2021 The GoPlus Authors (goplus.org)
     3  
     4   Licensed under the Apache License, Version 2.0 (the "License");
     5   you may not use this file except in compliance with the License.
     6   You may obtain a copy of the License at
     7  
     8       http://www.apache.org/licenses/LICENSE-2.0
     9  
    10   Unless required by applicable law or agreed to in writing, software
    11   distributed under the License is distributed on an "AS IS" BASIS,
    12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   See the License for the specific language governing permissions and
    14   limitations under the License.
    15  */
    16  
    17  // Package build implements the ``igop build'' command.
    18  package build
    19  
    20  import (
    21  	"fmt"
    22  	"os"
    23  	"path/filepath"
    24  
    25  	"github.com/goplus/igop"
    26  	"github.com/goplus/igop/cmd/internal/base"
    27  	"github.com/goplus/igop/cmd/internal/load"
    28  	"golang.org/x/tools/go/ssa"
    29  )
    30  
    31  // -----------------------------------------------------------------------------
    32  
    33  // Cmd - igop build
    34  var Cmd = &base.Command{
    35  	UsageLine: "igop build [build flags] [package]",
    36  	Short:     "compile a Go/Go+ package",
    37  }
    38  
    39  var (
    40  	flag = &Cmd.Flag
    41  )
    42  
    43  func init() {
    44  	Cmd.Run = buildCmd
    45  	base.AddBuildFlags(Cmd, base.OmitModFlag|base.OmitSSAFlag|base.OmitVFlag)
    46  }
    47  
    48  func buildCmd(cmd *base.Command, args []string) {
    49  	err := flag.Parse(args)
    50  	if err != nil {
    51  		os.Exit(2)
    52  	}
    53  	paths := flag.Args()
    54  	if len(paths) == 0 {
    55  		paths = []string{"."}
    56  	}
    57  	path := paths[0]
    58  	var mode igop.Mode
    59  	if base.BuildSSA {
    60  		mode |= igop.EnableDumpInstr
    61  	}
    62  	if base.BuildX {
    63  		mode |= igop.EnableDumpImports
    64  	}
    65  	ctx := igop.NewContext(mode)
    66  	ctx.BuildContext = base.BuildContext
    67  	path, _ = filepath.Abs(path)
    68  	isDir, err := load.IsDir(path)
    69  	if err != nil {
    70  		fmt.Fprintln(os.Stderr, err)
    71  		os.Exit(2)
    72  	}
    73  	var pkg *ssa.Package
    74  	if isDir {
    75  		if load.SupportGop && load.IsGopProject(path) {
    76  			err := load.BuildGopDir(ctx, path)
    77  			if err != nil {
    78  				fmt.Fprintln(os.Stderr, err)
    79  				os.Exit(2)
    80  			}
    81  		}
    82  		pkg, err = ctx.LoadDir(path, false)
    83  	} else {
    84  		pkg, err = ctx.LoadFile(path, nil)
    85  	}
    86  	if err != nil {
    87  		fmt.Fprintln(os.Stderr, err)
    88  		os.Exit(2)
    89  	}
    90  	_, err = ctx.NewInterp(pkg)
    91  	if err != nil {
    92  		fmt.Fprintln(os.Stderr, err)
    93  		os.Exit(2)
    94  	}
    95  	if base.BuildV {
    96  		fmt.Println(pkg.Pkg.Path())
    97  	}
    98  }
    99  
   100  // -----------------------------------------------------------------------------