71115d87bf
Migrate config.go: - os.ReadFile → io.Local.Read (with filepath.Abs for relative paths) Migrate checksum.go: - os.MkdirAll → io.Local.EnsureDir - os.WriteFile → io.Local.Write Migrate discovery.go: - os.Stat → io.Local.IsFile (with filepath.Abs for relative paths) Note: os.Open for file hashing remains unchanged as it requires io.Reader. Part of #101 (io.Medium migration tracking issue). Closes #105 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
104 lines
2.7 KiB
Go
104 lines
2.7 KiB
Go
// Package build provides project type detection and cross-compilation for the Core build system.
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package build
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import (
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"crypto/sha256"
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"encoding/hex"
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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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"sort"
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"strings"
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coreio "github.com/host-uk/core/pkg/io"
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)
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// Checksum computes SHA256 for an artifact and returns the artifact with the Checksum field filled.
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func Checksum(artifact Artifact) (Artifact, error) {
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if artifact.Path == "" {
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return Artifact{}, fmt.Errorf("build.Checksum: artifact path is empty")
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}
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// Open the file
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file, err := os.Open(artifact.Path)
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if err != nil {
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return Artifact{}, fmt.Errorf("build.Checksum: failed to open file: %w", err)
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}
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defer file.Close()
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// Compute SHA256 hash
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hasher := sha256.New()
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if _, err := io.Copy(hasher, file); err != nil {
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return Artifact{}, fmt.Errorf("build.Checksum: failed to hash file: %w", err)
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}
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checksum := hex.EncodeToString(hasher.Sum(nil))
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return Artifact{
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Path: artifact.Path,
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OS: artifact.OS,
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Arch: artifact.Arch,
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Checksum: checksum,
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}, nil
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}
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// ChecksumAll computes checksums for all artifacts.
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// Returns a slice of artifacts with their Checksum fields filled.
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func ChecksumAll(artifacts []Artifact) ([]Artifact, error) {
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if len(artifacts) == 0 {
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return nil, nil
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}
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var checksummed []Artifact
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for _, artifact := range artifacts {
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cs, err := Checksum(artifact)
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if err != nil {
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return checksummed, fmt.Errorf("build.ChecksumAll: failed to checksum %s: %w", artifact.Path, err)
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}
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checksummed = append(checksummed, cs)
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}
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return checksummed, nil
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}
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// WriteChecksumFile writes a CHECKSUMS.txt file with the format:
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//
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// sha256hash filename1
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// sha256hash filename2
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//
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// The artifacts should have their Checksum fields filled (call ChecksumAll first).
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// Filenames are relative to the output directory (just the basename).
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func WriteChecksumFile(artifacts []Artifact, path string) error {
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if len(artifacts) == 0 {
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return nil
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}
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// Build the content
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var lines []string
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for _, artifact := range artifacts {
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if artifact.Checksum == "" {
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return fmt.Errorf("build.WriteChecksumFile: artifact %s has no checksum", artifact.Path)
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}
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filename := filepath.Base(artifact.Path)
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lines = append(lines, fmt.Sprintf("%s %s", artifact.Checksum, filename))
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}
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// Sort lines for consistent output
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sort.Strings(lines)
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content := strings.Join(lines, "\n") + "\n"
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// Ensure directory exists
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dir := filepath.Dir(path)
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if err := coreio.Local.EnsureDir(dir); err != nil {
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return fmt.Errorf("build.WriteChecksumFile: failed to create directory: %w", err)
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}
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// Write the file
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if err := coreio.Local.Write(path, content); err != nil {
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return fmt.Errorf("build.WriteChecksumFile: failed to write file: %w", err)
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}
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return nil
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}
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