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context.go
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context.go
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/*
* GML - Go QML
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Roland Singer <roland.singer[at]desertbit.com>
* Copyright (c) 2019 Sebastian Borchers <sebastian[at]desertbit.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package docker
import (
"fmt"
"go/build"
"os"
"path/filepath"
"strings"
"github.com/desertbit/gml/internal/utils"
)
type Context struct {
SourceDir string
BuildDir string
DestDir string
BinName string
GoPath string
}
func newContext(sourceDir, buildDir, destDir string) (ctx *Context, err error) {
// Get absolute paths.
sourceDir, err = filepath.Abs(sourceDir)
if err != nil {
return
}
buildDir, err = filepath.Abs(buildDir)
if err != nil {
return
}
destDir, err = filepath.Abs(destDir)
if err != nil {
return
}
// Obtain the current GOPATH.
goPathEnv := os.Getenv("GOPATH")
if goPathEnv == "" {
goPathEnv = build.Default.GOPATH
}
goPaths := strings.Split(goPathEnv, ":")
if len(goPaths) == 0 {
err = fmt.Errorf("invalid GOPATH")
return
}
goPath := goPaths[0]
// Set the bin name.
binName := filepath.Base(sourceDir)
if binName == "" || binName == "." {
binName = "gml-app"
}
ctx = &Context{
SourceDir: sourceDir,
BuildDir: buildDir,
DestDir: destDir,
BinName: binName,
GoPath: goPath,
}
err = ctx.createDirsIfNotExists()
if err != nil {
return
}
err = ctx.checkForRequiredDirs()
return
}
func (c *Context) createDirsIfNotExists() (err error) {
dirs := []string{
c.BuildDir,
c.DestDir,
c.GoPath,
}
for _, d := range dirs {
err = os.MkdirAll(d, 0755)
if err != nil {
return
}
}
return
}
func (c *Context) checkForRequiredDirs() (err error) {
dirs := []string{
c.SourceDir,
}
for _, d := range dirs {
e, err := utils.Exists(d)
if err != nil {
return err
} else if !e {
return fmt.Errorf("required directory does not exists: '%s'", d)
}
}
return
}