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247c2586c2
* refactor: ast package * feat: read -> taskfile * refactor: taskfile.Taskfile -> taskfile.Read * refactor: move merge function back into taskfile package * refactor: rename taskfile.go to read.go
59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
package taskfile
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import (
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"crypto/sha256"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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)
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type Cache struct {
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dir string
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}
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func NewCache(dir string) (*Cache, error) {
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dir = filepath.Join(dir, "remote")
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if err := os.MkdirAll(dir, 0o755); err != nil {
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return nil, err
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}
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return &Cache{
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dir: dir,
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}, nil
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}
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func checksum(b []byte) string {
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h := sha256.New()
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h.Write(b)
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return fmt.Sprintf("%x", h.Sum(nil))
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}
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func (c *Cache) write(node Node, b []byte) error {
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return os.WriteFile(c.cacheFilePath(node), b, 0o644)
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}
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func (c *Cache) read(node Node) ([]byte, error) {
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return os.ReadFile(c.cacheFilePath(node))
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}
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func (c *Cache) writeChecksum(node Node, checksum string) error {
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return os.WriteFile(c.checksumFilePath(node), []byte(checksum), 0o644)
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}
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func (c *Cache) readChecksum(node Node) string {
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b, _ := os.ReadFile(c.checksumFilePath(node))
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return string(b)
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}
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func (c *Cache) key(node Node) string {
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return strings.TrimRight(checksum([]byte(node.Location())), "=")
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}
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func (c *Cache) cacheFilePath(node Node) string {
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return filepath.Join(c.dir, fmt.Sprintf("%s.yaml", c.key(node)))
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}
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func (c *Cache) checksumFilePath(node Node) string {
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return filepath.Join(c.dir, fmt.Sprintf("%s.checksum", c.key(node)))
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}
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