63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
// Package assetsdir contains code to cleanup the assets dir. We removed
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// the assetsdir in the 3.9.0 development cycle.
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package assetsdir
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import (
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"errors"
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"os"
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"path/filepath"
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)
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// ErrEmptyDir indicates that you passed to Cleanup an empty dir.
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var ErrEmptyDir = errors.New("empty assets directory")
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// Result is the result of a Cleanup run.
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type Result struct {
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// ASNDatabaseErr is the error of deleting the
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// file containing the old ASN database.
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ASNDatabaseErr error
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// CABundleErr is the error of deleting the file
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// containing the old CA bundle.
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CABundleErr error
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// CountryDatabaseErr is the error of deleting the
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// file containing the old country database.
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CountryDatabaseErr error
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// RmdirErr is the error of deleting the supposedly
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// empty directory that contained assets.
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RmdirErr error
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}
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// Cleanup removes data from the assetsdir. This function will
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// try to delete the known assets inside of dir. It then also
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// tries to delete the directory. If the directory is not empty,
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// this operation will fail. That means the user has put some
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// extra data in there and we don't want to remove it.
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//
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// Returns the Result of cleaning up the assets on success and
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// an error on failure. The only cause of error is passing to
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// this function an empty directory. The Result data structure
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// contains the result of each individual remove operation.
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func Cleanup(dir string) (*Result, error) {
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return fcleanup(dir, os.Remove)
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}
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// fcleanup is a version of Cleanup where we can mock the real function
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// used for removing files and dirs, so we can write unit tests.
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func fcleanup(dir string, remove func(name string) error) (*Result, error) {
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if dir == "" {
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return nil, ErrEmptyDir
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}
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r := &Result{}
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asndb := filepath.Join(dir, "asn.mmdb")
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r.ASNDatabaseErr = os.Remove(asndb)
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cabundle := filepath.Join(dir, "ca-bundle.pem")
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r.CABundleErr = os.Remove(cabundle)
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countrydb := filepath.Join(dir, "country.mmdb")
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r.CountryDatabaseErr = os.Remove(countrydb)
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r.RmdirErr = os.Remove(dir)
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return r, nil
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}
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