mirror of
https://github.com/rclone/rclone.git
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cmdtest: end-to-end test for commands, flags and environment variables
There was no easy way to automatically test the end-to-end functionality of commands, flags, environment variables etc. The need for end-to-end testing was highlighted by the issues fixed in #5341. There was no automated test to continually verify current behaviour, nor a framework to quickly test the correctness of the fixes. This change adds an end-to-end testing framework in the cmdtest folder. It has some simple examples in func TestCmdTest in cmdtest_test.go. The tests should be readable by anybody familiar with rclone and look like this: // Test the rclone version command with debug logging (-vv) out, err = rclone("version", "-vv") if assert.NoError(t, err) { assert.Contains(t, out, "rclone v") assert.Contains(t, out, "os/version:") assert.Contains(t, out, " DEBUG : ") } The end-to-end tests are executed just like the Go unit tests, that is: go test ./cmdtest -v The change also contains a thorough test of environment variables in environment_test.go. Thanks to @ncw for encouragement and introduction to the TestMain trick.
This commit is contained in:
Ole Frost
Nick Craig-Wood
parent
58c99427b3
commit
5e91b93e59
@ -228,6 +228,7 @@ with modules beneath.
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* cmd - the rclone commands
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* all - import this to load all the commands
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* ...commands
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* cmdtest - end-to-end tests of commands, flags, environment variables,...
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* docs - the documentation and website
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* content - adjust these docs only - everything else is autogenerated
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* command - these are auto generated - edit the corresponding .go file
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19
cmdtest/cmdtest.go
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19
cmdtest/cmdtest.go
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@ -0,0 +1,19 @@
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// Package cmdtest creates a testable interface to rclone main
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//
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// The interface is used to perform end-to-end test of
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// commands, flags, environment variables etc.
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//
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package cmdtest
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// The rest of this file is a 1:1 copy from rclone.go
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import (
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_ "github.com/rclone/rclone/backend/all" // import all backends
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"github.com/rclone/rclone/cmd"
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_ "github.com/rclone/rclone/cmd/all" // import all commands
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_ "github.com/rclone/rclone/lib/plugin" // import plugins
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)
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func main() {
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cmd.Main()
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}
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228
cmdtest/cmdtest_test.go
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228
cmdtest/cmdtest_test.go
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@ -0,0 +1,228 @@
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// cmdtest_test creates a testable interface to rclone main
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//
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// The interface is used to perform end-to-end test of
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// commands, flags, environment variables etc.
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package cmdtest
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import (
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// TestMain is initially called by go test to initiate the testing.
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// TestMain is also called during the tests to start rclone main in a fresh context (using exec.Command).
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// The context is determined by setting/finding the environment variable RCLONE_TEST_MAIN
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func TestMain(m *testing.M) {
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_, found := os.LookupEnv(rcloneTestMain)
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if !found {
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// started by Go test => execute tests
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err := os.Setenv(rcloneTestMain, "true")
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if err != nil {
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log.Fatalf("Unable to set %s: %s", rcloneTestMain, err.Error())
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}
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os.Exit(m.Run())
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} else {
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// started by func rcloneExecMain => call rclone main in cmdtest.go
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err := os.Unsetenv(rcloneTestMain)
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if err != nil {
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log.Fatalf("Unable to unset %s: %s", rcloneTestMain, err.Error())
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}
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main()
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}
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}
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const rcloneTestMain = "RCLONE_TEST_MAIN"
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// rcloneExecMain calls rclone with the given environment and arguments.
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// The environment variables are in a single string separated by ;
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// The terminal output is retuned as a string.
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func rcloneExecMain(env string, args ...string) (string, error) {
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_, found := os.LookupEnv(rcloneTestMain)
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if !found {
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log.Fatalf("Unexpected execution path: %s is missing.", rcloneTestMain)
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}
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// make a call to self to execute rclone main in a predefined environment (enters TestMain above)
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command := exec.Command(os.Args[0], args...)
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command.Env = getEnvInitial()
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if env != "" {
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command.Env = append(command.Env, strings.Split(env, ";")...)
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}
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out, err := command.CombinedOutput()
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return string(out), err
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}
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// rcloneEnv calls rclone with the given environment and arguments.
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// The environment variables are in a single string separated by ;
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// The test config file is automatically configured in RCLONE_CONFIG.
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// The terminal output is retuned as a string.
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func rcloneEnv(env string, args ...string) (string, error) {
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envConfig := env
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if testConfig != "" {
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if envConfig != "" {
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envConfig += ";"
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}
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envConfig += "RCLONE_CONFIG=" + testConfig
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}
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return rcloneExecMain(envConfig, args...)
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}
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// rclone calls rclone with the given arguments, E.g. "version","--help".
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// The test config file is automatically configured in RCLONE_CONFIG.
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// The terminal output is retuned as a string.
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func rclone(args ...string) (string, error) {
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return rcloneEnv("", args...)
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}
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// getEnvInitial returns the os environment variables cleaned for RCLONE_ vars (except RCLONE_TEST_MAIN).
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func getEnvInitial() []string {
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if envInitial == nil {
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// Set initial environment variables
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osEnv := os.Environ()
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for i := range osEnv {
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if !strings.HasPrefix(osEnv[i], "RCLONE_") || strings.HasPrefix(osEnv[i], rcloneTestMain) {
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envInitial = append(envInitial, osEnv[i])
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}
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}
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}
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return envInitial
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}
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var envInitial []string
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// createTestEnvironment creates a temporary testFolder and
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// sets testConfig to testFolder/rclone.config.
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func createTestEnvironment(t *testing.T) {
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//Set temporary folder for config and test data
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tempFolder, err := ioutil.TempDir("", "rclone_cmdtest_")
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require.NoError(t, err)
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testFolder = filepath.ToSlash(tempFolder)
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// Set path to temporary config file
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testConfig = testFolder + "/rclone.config"
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}
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var testFolder string
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var testConfig string
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// removeTestEnvironment removes the test environment created by createTestEnvironment
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func removeTestEnvironment(t *testing.T) {
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// Remove temporary folder with all contents
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err := os.RemoveAll(testFolder)
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require.NoError(t, err)
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}
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// createTestFile creates the file testFolder/name
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func createTestFile(name string, t *testing.T) string {
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err := ioutil.WriteFile(testFolder+"/"+name, []byte("content_of_"+name), 0666)
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require.NoError(t, err)
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return testFolder + "/" + name
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}
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// createTestFolder creates the folder testFolder/name
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func createTestFolder(name string, t *testing.T) string {
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err := os.Mkdir(testFolder+"/"+name, 0777)
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require.NoError(t, err)
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return testFolder + "/" + name
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}
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// createSimpleTestData creates simple test data in testFolder/subFolder
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func createSimpleTestData(t *testing.T) string {
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createTestFolder("testdata", t)
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createTestFile("testdata/file1.txt", t)
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createTestFile("testdata/file2.txt", t)
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createTestFolder("testdata/folderA", t)
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createTestFile("testdata/folderA/fileA1.txt", t)
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createTestFile("testdata/folderA/fileA2.txt", t)
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createTestFolder("testdata/folderA/folderAA", t)
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createTestFile("testdata/folderA/folderAA/fileAA1.txt", t)
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createTestFile("testdata/folderA/folderAA/fileAA2.txt", t)
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createTestFolder("testdata/folderB", t)
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createTestFile("testdata/folderB/fileB1.txt", t)
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createTestFile("testdata/folderB/fileB2.txt", t)
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return testFolder + "/testdata"
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}
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// removeSimpleTestData removes the test data created by createSimpleTestData
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func removeSimpleTestData(t *testing.T) {
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err := os.RemoveAll(testFolder + "/testdata")
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require.NoError(t, err)
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}
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// TestCmdTest demonstrates and verifies the test functions for end-to-end testing of rclone
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func TestCmdTest(t *testing.T) {
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createTestEnvironment(t)
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defer removeTestEnvironment(t)
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// Test simple call and output from rclone
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out, err := rclone("version")
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t.Logf("rclone version\n" + out)
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if assert.NoError(t, err) {
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assert.Contains(t, out, "rclone v")
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assert.Contains(t, out, "version: ")
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assert.NotContains(t, out, "Error:")
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assert.NotContains(t, out, "--help")
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assert.NotContains(t, out, " DEBUG : ")
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assert.Regexp(t, "rclone\\s+v\\d+\\.\\d+", out) // rclone v_.__
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}
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// Test multiple arguments and DEBUG output
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out, err = rclone("version", "-vv")
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if assert.NoError(t, err) {
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assert.Contains(t, out, "rclone v")
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assert.Contains(t, out, " DEBUG : ")
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}
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// Test error and error output
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out, err = rclone("version", "--provoke-an-error")
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if assert.Error(t, err) {
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assert.Contains(t, err.Error(), "exit status 1")
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assert.Contains(t, out, "Error: unknown flag")
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}
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// Test effect of environment variable
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env := "RCLONE_LOG_LEVEL=DEBUG"
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out, err = rcloneEnv(env, "version")
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if assert.NoError(t, err) {
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assert.Contains(t, out, "rclone v")
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assert.Contains(t, out, " DEBUG : ")
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}
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// Test effect of multiple environment variables, including one with ,
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env = "RCLONE_LOG_LEVEL=DEBUG;RCLONE_LOG_FORMAT=date,shortfile;RCLONE_STATS=173ms"
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out, err = rcloneEnv(env, "version")
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if assert.NoError(t, err) {
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assert.Contains(t, out, "rclone v")
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assert.Contains(t, out, " DEBUG : ")
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assert.Regexp(t, "[^\\s]+\\.go:\\d+:", out) // ___.go:__:
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assert.Contains(t, out, "173ms")
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}
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// Test setup of config file
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out, err = rclone("config", "create", "myLocal", "local")
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if assert.NoError(t, err) {
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assert.Contains(t, out, "[myLocal]")
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assert.Contains(t, out, "type = local")
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}
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// Test creation of simple test data
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createSimpleTestData(t)
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defer removeSimpleTestData(t)
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// Test access to config file and simple test data
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out, err = rclone("lsl", "myLocal:"+testFolder)
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t.Logf("rclone lsl myLocal:testFolder\n" + out)
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if assert.NoError(t, err) {
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assert.Contains(t, out, "rclone.config")
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assert.Contains(t, out, "testdata/folderA/fileA1.txt")
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}
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}
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276
cmdtest/environment_test.go
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276
cmdtest/environment_test.go
Normal file
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// environment_test tests the use and precedence of environment variables
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//
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// The tests rely on functions defined in cmdtest_test.go
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package cmdtest
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import (
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"os"
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"runtime"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// TestCmdTest demonstrates and verifies the test functions for end-to-end testing of rclone
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func TestEnvironmentVariables(t *testing.T) {
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createTestEnvironment(t)
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defer removeTestEnvironment(t)
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testdataPath := createSimpleTestData(t)
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defer removeSimpleTestData(t)
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// Non backend flags
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// =================
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// First verify default behaviour of the implicit max_depth=-1
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env := ""
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out, err := rcloneEnv(env, "lsl", testFolder)
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//t.Logf("\n" + out)
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if assert.NoError(t, err) {
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assert.Contains(t, out, "rclone.config") // depth 1
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assert.Contains(t, out, "file1.txt") // depth 2
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assert.Contains(t, out, "fileA1.txt") // depth 3
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assert.Contains(t, out, "fileAA1.txt") // depth 4
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}
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// Test of flag.Value
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env = "RCLONE_MAX_DEPTH=2"
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out, err = rcloneEnv(env, "lsl", testFolder)
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if assert.NoError(t, err) {
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assert.Contains(t, out, "file1.txt") // depth 2
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assert.NotContains(t, out, "fileA1.txt") // depth 3
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}
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// Test of flag.Changed (tests #5341 Issue1)
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env = "RCLONE_LOG_LEVEL=DEBUG"
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out, err = rcloneEnv(env, "version", "--quiet")
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if assert.Error(t, err) {
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assert.Contains(t, out, " DEBUG : ")
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assert.Contains(t, out, "Can't set -q and --log-level")
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assert.Contains(t, "exit status 1", err.Error())
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}
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// Test of flag.DefValue
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env = "RCLONE_STATS=173ms"
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out, err = rcloneEnv(env, "help", "flags")
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if assert.NoError(t, err) {
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assert.Contains(t, out, "(default 173ms)")
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}
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// Test of command line flags overriding environment flags
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env = "RCLONE_MAX_DEPTH=2"
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out, err = rcloneEnv(env, "lsl", testFolder, "--max-depth", "3")
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if assert.NoError(t, err) {
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assert.Contains(t, out, "fileA1.txt") // depth 3
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assert.NotContains(t, out, "fileAA1.txt") // depth 4
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}
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// Test of debug logging while initialising flags from environment (tests #5241 Enhance1)
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env = "RCLONE_STATS=173ms"
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out, err = rcloneEnv(env, "version", "-vv")
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if assert.NoError(t, err) {
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assert.Contains(t, out, " DEBUG : ")
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assert.Contains(t, out, "--stats")
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assert.Contains(t, out, "173ms")
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assert.Contains(t, out, "RCLONE_STATS=")
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}
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// Backend flags and option precedence
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// ===================================
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// Test approach:
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// Verify no symlink warning when skip_links=true one the level with highest precedence
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// and skip_links=false on all levels with lower precedence
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//
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// Reference: https://rclone.org/docs/#precedence
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// Create a symlink in test data
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err = os.Symlink(testdataPath+"/folderA", testdataPath+"/symlinkA")
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if runtime.GOOS == "windows" {
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errNote := "The policy settings on Windows often prohibit the creation of symlinks due to security issues.\n"
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errNote += "You can safely ignore this test, if your change didn't affect environment variables."
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require.NoError(t, err, errNote)
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} else {
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require.NoError(t, err)
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}
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// Create a local remote with explicit skip_links=false
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out, err = rclone("config", "create", "myLocal", "local", "skip_links", "false")
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if assert.NoError(t, err) {
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assert.Contains(t, out, "[myLocal]")
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assert.Contains(t, out, "type = local")
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assert.Contains(t, out, "skip_links = false")
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}
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// Verify symlink warning when skip_links=false on all levels
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env = "RCLONE_SKIP_LINKS=false;RCLONE_LOCAL_SKIP_LINKS=false;RCLONE_CONFIG_MYLOCAL_SKIP_LINKS=false"
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out, err = rcloneEnv(env, "lsd", "myLocal,skip_links=false:"+testdataPath, "--skip-links=false")
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//t.Logf("\n" + out)
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if assert.NoError(t, err) {
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assert.Contains(t, out, "NOTICE: symlinkA:")
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assert.Contains(t, out, "folderA")
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}
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// Test precedence of connection strings
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env = "RCLONE_SKIP_LINKS=false;RCLONE_LOCAL_SKIP_LINKS=false;RCLONE_CONFIG_MYLOCAL_SKIP_LINKS=false"
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out, err = rcloneEnv(env, "lsd", "myLocal,skip_links:"+testdataPath, "--skip-links=false")
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if assert.NoError(t, err) {
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assert.NotContains(t, out, "symlinkA")
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assert.Contains(t, out, "folderA")
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}
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// Test precedence of command line flags
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env = "RCLONE_SKIP_LINKS=false;RCLONE_LOCAL_SKIP_LINKS=false;RCLONE_CONFIG_MYLOCAL_SKIP_LINKS=false"
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out, err = rcloneEnv(env, "lsd", "myLocal:"+testdataPath, "--skip-links")
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if assert.NoError(t, err) {
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assert.NotContains(t, out, "symlinkA")
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assert.Contains(t, out, "folderA")
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}
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// Test precedence of remote specific environment variables (tests #5341 Issue2)
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env = "RCLONE_SKIP_LINKS=false;RCLONE_LOCAL_SKIP_LINKS=false;RCLONE_CONFIG_MYLOCAL_SKIP_LINKS=true"
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out, err = rcloneEnv(env, "lsd", "myLocal:"+testdataPath)
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if assert.NoError(t, err) {
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assert.NotContains(t, out, "symlinkA")
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assert.Contains(t, out, "folderA")
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}
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// Test precedence of backend specific environment variables (tests #5341 Issue3)
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env = "RCLONE_SKIP_LINKS=false;RCLONE_LOCAL_SKIP_LINKS=true"
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out, err = rcloneEnv(env, "lsd", "myLocal:"+testdataPath)
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if assert.NoError(t, err) {
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assert.NotContains(t, out, "symlinkA")
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assert.Contains(t, out, "folderA")
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}
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// Test precedence of backend generic environment variables
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env = "RCLONE_SKIP_LINKS=true"
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out, err = rcloneEnv(env, "lsd", "myLocal:"+testdataPath)
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if assert.NoError(t, err) {
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assert.NotContains(t, out, "symlinkA")
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assert.Contains(t, out, "folderA")
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}
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// Recreate the test remote with explicit skip_links=true
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out, err = rclone("config", "create", "myLocal", "local", "skip_links", "true")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "[myLocal]")
|
||||
assert.Contains(t, out, "type = local")
|
||||
assert.Contains(t, out, "skip_links = true")
|
||||
}
|
||||
|
||||
// Test precedence of config file options
|
||||
env = ""
|
||||
out, err = rcloneEnv(env, "lsd", "myLocal:"+testdataPath)
|
||||
if assert.NoError(t, err) {
|
||||
assert.NotContains(t, out, "symlinkA")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
// Recreate the test remote with rclone defaults, that is implicit skip_links=false
|
||||
out, err = rclone("config", "create", "myLocal", "local")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "[myLocal]")
|
||||
assert.Contains(t, out, "type = local")
|
||||
assert.NotContains(t, out, "skip_links")
|
||||
}
|
||||
|
||||
// Verify the rclone default value (implicit skip_links=false)
|
||||
env = ""
|
||||
out, err = rcloneEnv(env, "lsd", "myLocal:"+testdataPath)
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "NOTICE: symlinkA:")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
// Display of backend defaults (tests #4659)
|
||||
//------------------------------------------
|
||||
|
||||
env = "RCLONE_DRIVE_CHUNK_SIZE=111M"
|
||||
out, err = rcloneEnv(env, "help", "flags")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Regexp(t, "--drive-chunk-size[^\\(]+\\(default 111M\\)", out)
|
||||
}
|
||||
|
||||
// Options on referencing remotes (alias, crypt, etc.)
|
||||
//----------------------------------------------------
|
||||
|
||||
// Create alias remote on myLocal having implicit skip_links=false
|
||||
out, err = rclone("config", "create", "myAlias", "alias", "remote", "myLocal:"+testdataPath)
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "[myAlias]")
|
||||
assert.Contains(t, out, "type = alias")
|
||||
assert.Contains(t, out, "remote = myLocal:")
|
||||
}
|
||||
|
||||
// Verify symlink warnings on the alias
|
||||
env = ""
|
||||
out, err = rcloneEnv(env, "lsd", "myAlias:")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "NOTICE: symlinkA:")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
// Test backend generic flags
|
||||
// having effect on the underlying local remote
|
||||
env = "RCLONE_SKIP_LINKS=true"
|
||||
out, err = rcloneEnv(env, "lsd", "myAlias:")
|
||||
if assert.NoError(t, err) {
|
||||
assert.NotContains(t, out, "symlinkA")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
// Test backend specific flags
|
||||
// having effect on the underlying local remote
|
||||
env = "RCLONE_LOCAL_SKIP_LINKS=true"
|
||||
out, err = rcloneEnv(env, "lsd", "myAlias:")
|
||||
if assert.NoError(t, err) {
|
||||
assert.NotContains(t, out, "symlinkA")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
// Test remote specific flags
|
||||
// having no effect unless supported by the immediate remote (alias)
|
||||
env = "RCLONE_CONFIG_MYALIAS_SKIP_LINKS=true"
|
||||
out, err = rcloneEnv(env, "lsd", "myAlias:")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "NOTICE: symlinkA:")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
env = "RCLONE_CONFIG_MYALIAS_REMOTE=" + "myLocal:" + testdataPath + "/folderA"
|
||||
out, err = rcloneEnv(env, "lsl", "myAlias:")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "fileA1.txt")
|
||||
assert.NotContains(t, out, "fileB1.txt")
|
||||
}
|
||||
|
||||
// Test command line flags
|
||||
// having effect on the underlying local remote
|
||||
env = ""
|
||||
out, err = rcloneEnv(env, "lsd", "myAlias:", "--skip-links")
|
||||
if assert.NoError(t, err) {
|
||||
assert.NotContains(t, out, "symlinkA")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
// Test connection specific flags
|
||||
// having no effect unless supported by the immediate remote (alias)
|
||||
env = ""
|
||||
out, err = rcloneEnv(env, "lsd", "myAlias,skip_links:")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "NOTICE: symlinkA:")
|
||||
assert.Contains(t, out, "folderA")
|
||||
}
|
||||
|
||||
env = ""
|
||||
out, err = rcloneEnv(env, "lsl", "myAlias,remote='myLocal:"+testdataPath+"/folderA':", "-vv")
|
||||
if assert.NoError(t, err) {
|
||||
assert.Contains(t, out, "fileA1.txt")
|
||||
assert.NotContains(t, out, "fileB1.txt")
|
||||
}
|
||||
|
||||
}
|
||||
@ -239,6 +239,13 @@ However using the connection string syntax, this does work.
|
||||
|
||||
rclone copy "gdrive,shared_with_me:shared-file.txt" gdrive:
|
||||
|
||||
Note that the connection string only affects the options of the immediate
|
||||
backend. If for example gdriveCrypt is a crypt based on gdrive, then the
|
||||
following command **will not work** as intended, because
|
||||
`shared_with_me` is ignored by the crypt backend:
|
||||
|
||||
rclone copy "gdriveCrypt,shared_with_me:shared-file.txt" gdriveCrypt:
|
||||
|
||||
The connection strings have the following syntax
|
||||
|
||||
remote,parameter=value,parameter2=value2:path/to/dir
|
||||
@ -2157,6 +2164,11 @@ mys3:
|
||||
Note that if you want to create a remote using environment variables
|
||||
you must create the `..._TYPE` variable as above.
|
||||
|
||||
Note that you can only set the options of the immediate backend,
|
||||
so RCLONE_CONFIG_MYS3CRYPT_ACCESS_KEY_ID has no effect, if myS3Crypt is
|
||||
a crypt remote based on an S3 remote. However RCLONE_S3_ACCESS_KEY_ID will
|
||||
set the access key of all remotes using S3, including myS3Crypt.
|
||||
|
||||
Note also that now rclone has [connection strings](#connection-strings),
|
||||
it is probably easier to use those instead which makes the above example
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user