lewis.moe
Monorepo for Tangled
knotserver: add helpers to read and parse .gitmodules files
Signed-off-by: oppiliappan <me@oppi.li>
authored by
oppiliappan
and committed by
Tangled
0f46394e
7ed8a100
+60
-2
knotserver/git/git.go
+60
-2
knotserver/git/git.go
···
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import (
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"archive/tar"
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"bytes"
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"errors"
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"fmt"
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"io"
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"io/fs"
···
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"time"
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"github.com/go-git/go-git/v5"
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"github.com/go-git/go-git/v5/config"
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"github.com/go-git/go-git/v5/plumbing"
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"github.com/go-git/go-git/v5/plumbing/object"
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)
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var (
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ErrBinaryFile = fmt.Errorf("binary file")
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ErrNotBinaryFile = fmt.Errorf("not binary file")
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ErrBinaryFile = errors.New("binary file")
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ErrNotBinaryFile = errors.New("not binary file")
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ErrMissingGitModules = errors.New("no .gitmodules file found")
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ErrInvalidGitModules = errors.New("invalid .gitmodules file")
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ErrNotSubmodule = errors.New("path is not a submodule")
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)
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type GitRepo struct {
···
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defer reader.Close()
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return io.ReadAll(reader)
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}
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// read and parse .gitmodules
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func (g *GitRepo) Submodules() (*config.Modules, error) {
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c, err := g.r.CommitObject(g.h)
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if err != nil {
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return nil, fmt.Errorf("commit object: %w", err)
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}
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tree, err := c.Tree()
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if err != nil {
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return nil, fmt.Errorf("tree: %w", err)
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}
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// read .gitmodules file
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modulesEntry, err := tree.FindEntry(".gitmodules")
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if err != nil {
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return nil, fmt.Errorf("%w: %w", ErrMissingGitModules, err)
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}
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modulesFile, err := tree.TreeEntryFile(modulesEntry)
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if err != nil {
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return nil, fmt.Errorf("%w: failed to read file: %w", ErrInvalidGitModules, err)
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}
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+
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content, err := modulesFile.Contents()
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if err != nil {
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return nil, fmt.Errorf("%w: failed to read contents: %w", ErrInvalidGitModules, err)
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}
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// parse .gitmodules
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modules := config.NewModules()
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if err = modules.Unmarshal([]byte(content)); err != nil {
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return nil, fmt.Errorf("%w: failed to parse: %w", ErrInvalidGitModules, err)
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}
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return modules, nil
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}
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func (g *GitRepo) Submodule(path string) (*config.Submodule, error) {
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modules, err := g.Submodules()
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if err != nil {
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return nil, err
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}
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for _, submodule := range modules.Submodules {
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if submodule.Path == path {
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return submodule, nil
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}
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}
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// path is not a submodule
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return nil, ErrNotSubmodule
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}
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func (g *GitRepo) Branch(name string) (*plumbing.Reference, error) {