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104 lines
2.1 KiB
Go
104 lines
2.1 KiB
Go
package ctx
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"strings"
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"github.com/zeromicro/go-zero/tools/goctl/rpc/execx"
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"github.com/zeromicro/go-zero/tools/goctl/util/pathx"
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)
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const goModuleWithoutGoFiles = "command-line-arguments"
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var errInvalidGoMod = errors.New("invalid go module")
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// Module contains the relative data of go module,
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// which is the result of the command go list
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type Module struct {
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Path string
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Main bool
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Dir string
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GoMod string
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GoVersion string
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}
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func (m *Module) validate() error {
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if m.Path == goModuleWithoutGoFiles || m.Dir == "" {
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return errInvalidGoMod
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}
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return nil
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}
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// projectFromGoMod is used to find the go module and project file path
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// the workDir flag specifies which folder we need to detect based on
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// only valid for go mod project
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func projectFromGoMod(workDir string) (*ProjectContext, error) {
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if len(workDir) == 0 {
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return nil, errors.New("the work directory is not found")
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}
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if _, err := os.Stat(workDir); err != nil {
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return nil, err
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}
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workDir, err := pathx.ReadLink(workDir)
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if err != nil {
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return nil, err
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}
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m, err := getRealModule(workDir, execx.Run)
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if err != nil {
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return nil, err
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}
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if err := m.validate(); err != nil {
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return nil, err
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}
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var ret ProjectContext
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ret.WorkDir = workDir
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ret.Name = filepath.Base(m.Dir)
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dir, err := pathx.ReadLink(m.Dir)
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if err != nil {
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return nil, err
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}
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ret.Dir = dir
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ret.Path = m.Path
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return &ret, nil
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}
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func getRealModule(workDir string, execRun execx.RunFunc) (*Module, error) {
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data, err := execRun("go list -json -m", workDir)
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if err != nil {
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return nil, err
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}
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modules, err := decodePackages(strings.NewReader(data))
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if err != nil {
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return nil, err
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}
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for _, m := range modules {
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if strings.HasPrefix(workDir, m.Dir) {
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return &m, nil
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}
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}
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return nil, errors.New("no matched module")
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}
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func decodePackages(rc io.Reader) ([]Module, error) {
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var modules []Module
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decoder := json.NewDecoder(rc)
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for decoder.More() {
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var m Module
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if err := decoder.Decode(&m); err != nil {
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return nil, fmt.Errorf("invalid module: %v", err)
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}
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modules = append(modules, m)
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}
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return modules, nil
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}
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