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copyurl: add no-clobber flag - fixes #3950

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Denis 2020-04-19 14:40:17 +03:00 committed by GitHub
parent 9d4b3580a5
commit 31a1cc46b7
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6 changed files with 43 additions and 8 deletions
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7
cmd/copyurl/copyurl.go
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@ -15,12 +15,14 @@ import (
var (
autoFilename = false
stdout = false
noClobber = false
)
func init() {
cmd.Root.AddCommand(commandDefinition)
cmdFlags := commandDefinition.Flags()
flags.BoolVarP(cmdFlags, &autoFilename, "auto-filename", "a", autoFilename, "Get the file name from the URL and use it for destination file path")
flags.BoolVarP(cmdFlags, &noClobber, "no-clobber", "", noClobber, "Prevent overwriting file with same name")
flags.BoolVarP(cmdFlags, &stdout, "stdout", "", stdout, "Write the output to stdout rather than a file")
}
@ -35,6 +37,9 @@ Setting --auto-filename will cause the file name to be retreived from
the from URL (after any redirections) and used in the destination
path.
Setting --no-clobber will prevent overwriting file on the
destination if there is one with the same name.
Setting --stdout or making the output file name "-" will cause the
output to be written to standard output.
`,
@ -59,7 +64,7 @@ output to be written to standard output.
if stdout {
err = operations.CopyURLToWriter(context.Background(), args[0], os.Stdout)
} else {
_, err = operations.CopyURL(context.Background(), fsdst, dstFileName, args[0], autoFilename)
_, err = operations.CopyURL(context.Background(), fsdst, dstFileName, args[0], autoFilename, noClobber)
}
return err
})

4
docs/content/commands/rclone_copyurl.md
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@ -19,6 +19,9 @@ Setting --auto-filename will cause the file name to be retreived from
the from URL (after any redirections) and used in the destination
path.
Setting --no-clobber will prevent overwriting file on the
destination if there is one with the same name.
Setting --stdout or making the output file name "-" will cause the
output to be written to standard output.
@ -31,6 +34,7 @@ rclone copyurl https://example.com dest:path [flags]
```
-a, --auto-filename Get the file name from the URL and use it for destination file path
--no-clobber Prevent file overwriting on destination
-h, --help help for copyurl
--stdout Write the output to stdout rather than a file
```

9
fs/operations/operations.go
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@ -1718,8 +1718,15 @@ func copyURLFn(ctx context.Context, dstFileName string, url string, dstFileNameF
}
// CopyURL copies the data from the url to (fdst, dstFileName)
func CopyURL(ctx context.Context, fdst fs.Fs, dstFileName string, url string, dstFileNameFromURL bool) (dst fs.Object, err error) {
func CopyURL(ctx context.Context, fdst fs.Fs, dstFileName string, url string, dstFileNameFromURL bool, noClobber bool) (dst fs.Object, err error) {
err = copyURLFn(ctx, dstFileName, url, dstFileNameFromURL, func(ctx context.Context, dstFileName string, in io.ReadCloser, size int64, modTime time.Time) (err error) {
if noClobber {
_, err = fdst.NewObject(ctx, dstFileName)
if err == nil {
return errors.New("CopyURL failed: file already exist")
}
}
dst, err = RcatSize(ctx, fdst, dstFileName, in, size, modTime)
return err
})

14
fs/operations/operations_test.go
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@ -663,27 +663,31 @@ func TestCopyURL(t *testing.T) {
ts := httptest.NewServer(handler)
defer ts.Close()
o, err := operations.CopyURL(context.Background(), r.Fremote, "file1", ts.URL, false)
o, err := operations.CopyURL(context.Background(), r.Fremote, "file1", ts.URL, false, false)
require.NoError(t, err)
assert.Equal(t, int64(len(contents)), o.Size())
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, nil, fs.ModTimeNotSupported)
// Check file clobbering
o, err = operations.CopyURL(context.Background(), r.Fremote, "file1", ts.URL, false, true)
require.Error(t, err)
// Check auto file naming
status = 0
urlFileName := "filename.txt"
o, err = operations.CopyURL(context.Background(), r.Fremote, "", ts.URL+"/"+urlFileName, true)
o, err = operations.CopyURL(context.Background(), r.Fremote, "", ts.URL+"/"+urlFileName, true, false)
require.NoError(t, err)
assert.Equal(t, int64(len(contents)), o.Size())
assert.Equal(t, urlFileName, o.Remote())
// Check auto file naming when url without file name
o, err = operations.CopyURL(context.Background(), r.Fremote, "file1", ts.URL, true)
o, err = operations.CopyURL(context.Background(), r.Fremote, "file1", ts.URL, true, false)
require.Error(t, err)
// Check an error is returned for a 404
status = http.StatusNotFound
o, err = operations.CopyURL(context.Background(), r.Fremote, "file1", ts.URL, false)
o, err = operations.CopyURL(context.Background(), r.Fremote, "file1", ts.URL, false, false)
require.Error(t, err)
assert.Contains(t, err.Error(), "Not Found")
assert.Nil(t, o)
@ -699,7 +703,7 @@ func TestCopyURL(t *testing.T) {
tss := httptest.NewTLSServer(handler)
defer tss.Close()
o, err = operations.CopyURL(context.Background(), r.Fremote, "file2", tss.URL, false)
o, err = operations.CopyURL(context.Background(), r.Fremote, "file2", tss.URL, false, false)
require.NoError(t, err)
assert.Equal(t, int64(len(contents)), o.Size())
fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1, file2, fstest.NewItem(urlFileName, contents, t1)}, nil, fs.ModTimeNotSupported)

3
fs/operations/rc.go
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@ -215,8 +215,9 @@ func rcSingleCommand(ctx context.Context, in rc.Params, name string, noRemote bo
return nil, err
}
autoFilename, _ := in.GetBool("autoFilename")
noClobber, _ := in.GetBool("noClobber")
_, err = CopyURL(ctx, f, remote, url, autoFilename)
_, err = CopyURL(ctx, f, remote, url, autoFilename, noClobber)
return nil, err
case "cleanup":
return nil, CleanUp(ctx, f)

14
fs/operations/rc_test.go
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@ -109,17 +109,30 @@ func TestRcCopyurl(t *testing.T) {
"remote": "file1",
"url": ts.URL,
"autoFilename": false,
"noClobber": false,
}
out, err := call.Fn(context.Background(), in)
require.NoError(t, err)
assert.Equal(t, rc.Params(nil), out)
in = rc.Params{
"fs": r.FremoteName,
"remote": "file1",
"url": ts.URL,
"autoFilename": false,
"noClobber": true,
}
out, err = call.Fn(context.Background(), in)
require.Error(t, err)
assert.Equal(t, rc.Params(nil), out)
urlFileName := "filename.txt"
in = rc.Params{
"fs": r.FremoteName,
"remote": "",
"url": ts.URL + "/" + urlFileName,
"autoFilename": true,
"noClobber": false,
}
out, err = call.Fn(context.Background(), in)
require.NoError(t, err)
@ -130,6 +143,7 @@ func TestRcCopyurl(t *testing.T) {
"remote": "",
"url": ts.URL,
"autoFilename": true,
"noClobber": false,
}
out, err = call.Fn(context.Background(), in)
require.Error(t, err)