package fs
import (
"context"
"errors"
"fmt"
"net"
"os"
"strconv"
"strings"
"time"
)
// Global
var (
// globalConfig for rclone
globalConfig = new(ConfigInfo)
// Read a value from the config file
//
// This is a function pointer to decouple the config
// implementation from the fs
ConfigFileGet = func(section, key string) (string, bool) { return "", false }
// Set a value into the config file and persist it
//
// This is a function pointer to decouple the config
// implementation from the fs
ConfigFileSet = func(section, key, value string) (err error) {
return errors.New("no config file set handler")
}
// Check if the config file has the named section
//
// This is a function pointer to decouple the config
// implementation from the fs
ConfigFileHasSection = func(section string) bool { return false }
// CountError counts an error. If any errors have been
// counted then rclone will exit with a non zero error code.
//
// This is a function pointer to decouple the config
// implementation from the fs
CountError = func(err error) error { return err }
// ConfigProvider is the config key used for provider options
ConfigProvider = "provider"
// ConfigEdit is the config key used to show we wish to edit existing entries
ConfigEdit = "config_fs_edit"
)
// ConfigOptionsInfo describes the Options in use
var ConfigOptionsInfo = Options{{
Name: "modify_window",
Default: time.Nanosecond,
Help: "Max time diff to be considered the same",
Groups: "Copy",
}, {
Name: "checkers",
Default: 8,
Help: "Number of checkers to run in parallel",
Groups: "Performance",
}, {
Name: "transfers",
Default: 4,
Help: "Number of file transfers to run in parallel",
Groups: "Performance",
}, {
Name: "checksum",
ShortOpt: "c",
Default: false,
Help: "Check for changes with size & checksum (if available, or fallback to size only).",
Groups: "Copy",
}, {
Name: "size_only",
Default: false,
Help: "Skip based on size only, not modtime or checksum",
Groups: "Copy",
}, {
Name: "ignore_times",
ShortOpt: "I",
Default: false,
Help: "Don't skip items that match size and time - transfer all unconditionally",
Groups: "Copy",
}, {
Name: "ignore_existing",
Default: false,
Help: "Skip all files that exist on destination",
Groups: "Copy",
}, {
Name: "ignore_errors",
Default: false,
Help: "Delete even if there are I/O errors",
Groups: "Sync",
}, {
Name: "dry_run",
ShortOpt: "n",
Default: false,
Help: "Do a trial run with no permanent changes",
Groups: "Config,Important",
}, {
Name: "interactive",
ShortOpt: "i",
Default: false,
Help: "Enable interactive mode",
Groups: "Config,Important",
}, {
Name: "contimeout",
Default: 60 * time.Second,
Help: "Connect timeout",
Groups: "Networking",
}, {
Name: "timeout",
Default: 5 * 60 * time.Second,
Help: "IO idle timeout",
Groups: "Networking",
}, {
Name: "expect_continue_timeout",
Default: 1 * time.Second,
Help: "Timeout when using expect / 100-continue in HTTP",
Groups: "Networking",
}, {
Name: "no_check_certificate",
Default: false,
Help: "Do not verify the server SSL certificate (insecure)",
Groups: "Networking",
}, {
Name: "ask_password",
Default: true,
Help: "Allow prompt for password for encrypted configuration",
Groups: "Config",
}, {
Name: "password_command",
Default: SpaceSepList{},
Help: "Command for supplying password for encrypted configuration",
Groups: "Config",
}, {
Name: "max_delete",
Default: int64(-1),
Help: "When synchronizing, limit the number of deletes",
Groups: "Sync",
}, {
Name: "max_delete_size",
Default: SizeSuffix(-1),
Help: "When synchronizing, limit the total size of deletes",
Groups: "Sync",
}, {
Name: "track_renames",
Default: false,
Help: "When synchronizing, track file renames and do a server-side move if possible",
Groups: "Sync",
}, {
Name: "track_renames_strategy",
Default: "hash",
Help: "Strategies to use when synchronizing using track-renames hash|modtime|leaf",
Groups: "Sync",
}, {
Name: "retries",
Default: 3,
Help: "Retry operations this many times if they fail",
Groups: "Config",
}, {
Name: "retries_sleep",
Default: time.Duration(0),
Help: "Interval between retrying operations if they fail, e.g. 500ms, 60s, 5m (0 to disable)",
Groups: "Config",
}, {
Name: "low_level_retries",
Default: 10,
Help: "Number of low level retries to do",
Groups: "Config",
}, {
Name: "update",
ShortOpt: "u",
Default: false,
Help: "Skip files that are newer on the destination",
Groups: "Copy",
}, {
Name: "use_server_modtime",
Default: false,
Help: "Use server modified time instead of object metadata",
Groups: "Config",
}, {
Name: "no_gzip_encoding",
Default: false,
Help: "Don't set Accept-Encoding: gzip",
Groups: "Networking",
}, {
Name: "max_depth",
Default: -1,
Help: "If set limits the recursion depth to this",
Groups: "Filter",
}, {
Name: "ignore_size",
Default: false,
Help: "Ignore size when skipping use modtime or checksum",
Groups: "Copy",
}, {
Name: "ignore_checksum",
Default: false,
Help: "Skip post copy check of checksums",
Groups: "Copy",
}, {
Name: "ignore_case_sync",
Default: false,
Help: "Ignore case when synchronizing",
Groups: "Copy",
}, {
Name: "fix_case",
Default: false,
Help: "Force rename of case insensitive dest to match source",
Groups: "Sync",
}, {
Name: "no_traverse",
Default: false,
Help: "Don't traverse destination file system on copy",
Groups: "Copy",
}, {
Name: "check_first",
Default: false,
Help: "Do all the checks before starting transfers",
Groups: "Copy",
}, {
Name: "no_check_dest",
Default: false,
Help: "Don't check the destination, copy regardless",
Groups: "Copy",
}, {
Name: "no_unicode_normalization",
Default: false,
Help: "Don't normalize unicode characters in filenames",
Groups: "Config",
}, {
Name: "no_update_modtime",
Default: false,
Help: "Don't update destination modtime if files identical",
Groups: "Copy",
}, {
Name: "no_update_dir_modtime",
Default: false,
Help: "Don't update directory modification times",
Groups: "Copy",
}, {
Name: "compare_dest",
Default: []string{},
Help: "Include additional server-side paths during comparison",
Groups: "Copy",
}, {
Name: "copy_dest",
Default: []string{},
Help: "Implies --compare-dest but also copies files from paths into destination",
Groups: "Copy",
}, {
Name: "backup_dir",
Default: "",
Help: "Make backups into hierarchy based in DIR",
Groups: "Sync",
}, {
Name: "suffix",
Default: "",
Help: "Suffix to add to changed files",
Groups: "Sync",
}, {
Name: "suffix_keep_extension",
Default: false,
Help: "Preserve the extension when using --suffix",
Groups: "Sync",
}, {
Name: "fast_list",
Default: false,
Help: "Use recursive list if available; uses more memory but fewer transactions",
Groups: "Listing",
}, {
Name: "tpslimit",
Default: 0.0,
Help: "Limit HTTP transactions per second to this",
Groups: "Networking",
}, {
Name: "tpslimit_burst",
Default: 1,
Help: "Max burst of transactions for --tpslimit",
Groups: "Networking",
}, {
Name: "user_agent",
Default: "rclone/" + Version,
Help: "Set the user-agent to a specified string",
Groups: "Networking",
}, {
Name: "immutable",
Default: false,
Help: "Do not modify files, fail if existing files have been modified",
Groups: "Copy",
}, {
Name: "auto_confirm",
Default: false,
Help: "If enabled, do not request console confirmation",
Groups: "Config",
}, {
Name: "stats_unit",
Default: "bytes",
Help: "Show data rate in stats as either 'bits' or 'bytes' per second",
Groups: "Logging",
}, {
Name: "stats_file_name_length",
Default: 45,
Help: "Max file name length in stats (0 for no limit)",
Groups: "Logging",
}, {
Name: "log_level",
Default: LogLevelNotice,
Help: "Log level DEBUG|INFO|NOTICE|ERROR",
Groups: "Logging",
}, {
Name: "stats_log_level",
Default: LogLevelInfo,
Help: "Log level to show --stats output DEBUG|INFO|NOTICE|ERROR",
Groups: "Logging",
}, {
Name: "bwlimit",
Default: BwTimetable{},
Help: "Bandwidth limit in KiB/s, or use suffix B|K|M|G|T|P or a full timetable",
Groups: "Networking",
}, {
Name: "bwlimit_file",
Default: BwTimetable{},
Help: "Bandwidth limit per file in KiB/s, or use suffix B|K|M|G|T|P or a full timetable",
Groups: "Networking",
}, {
Name: "buffer_size",
Default: SizeSuffix(16 << 20),
Help: "In memory buffer size when reading files for each --transfer",
Groups: "Performance",
}, {
Name: "streaming_upload_cutoff",
Default: SizeSuffix(100 * 1024),
Help: "Cutoff for switching to chunked upload if file size is unknown, upload starts after reaching cutoff or when file ends",
Groups: "Copy",
}, {
Name: "dump",
Default: DumpFlags(0),
Help: "List of items to dump from: " + DumpFlagsList,
Groups: "Debugging",
}, {
Name: "max_transfer",
Default: SizeSuffix(-1),
Help: "Maximum size of data to transfer",
Groups: "Copy",
}, {
Name: "max_duration",
Default: time.Duration(0),
Help: "Maximum duration rclone will transfer data for",
Groups: "Copy",
}, {
Name: "cutoff_mode",
Default: CutoffMode(0),
Help: "Mode to stop transfers when reaching the max transfer limit HARD|SOFT|CAUTIOUS",
Groups: "Copy",
}, {
Name: "max_backlog",
Default: 10000,
Help: "Maximum number of objects in sync or check backlog",
Groups: "Copy,Check",
}, {
Name: "max_stats_groups",
Default: 1000,
Help: "Maximum number of stats groups to keep in memory, on max oldest is discarded",
Groups: "Logging",
}, {
Name: "stats_one_line",
Default: false,
Help: "Make the stats fit on one line",
Groups: "Logging",
}, {
Name: "stats_one_line_date",
Default: false,
Help: "Enable --stats-one-line and add current date/time prefix",
Groups: "Logging",
}, {
Name: "stats_one_line_date_format",
Default: "",
Help: "Enable --stats-one-line-date and use custom formatted date: Enclose date string in double quotes (\"), see https://golang.org/pkg/time/#Time.Format",
Groups: "Logging",
}, {
Name: "error_on_no_transfer",
Default: false,
Help: "Sets exit code 9 if no files are transferred, useful in scripts",
Groups: "Config",
}, {
Name: "progress",
ShortOpt: "P",
Default: false,
Help: "Show progress during transfer",
Groups: "Logging",
}, {
Name: "progress_terminal_title",
Default: false,
Help: "Show progress on the terminal title (requires -P/--progress)",
Groups: "Logging",
}, {
Name: "use_cookies",
Default: false,
Help: "Enable session cookiejar",
Groups: "Networking",
}, {
Name: "use_mmap",
Default: false,
Help: "Use mmap allocator (see docs)",
Groups: "Config",
}, {
Name: "ca_cert",
Default: []string{},
Help: "CA certificate used to verify servers",
Groups: "Networking",
}, {
Name: "client_cert",
Default: "",
Help: "Client SSL certificate (PEM) for mutual TLS auth",
Groups: "Networking",
}, {
Name: "client_key",
Default: "",
Help: "Client SSL private key (PEM) for mutual TLS auth",
Groups: "Networking",
}, {
Name: "multi_thread_cutoff",
Default: SizeSuffix(256 * 1024 * 1024),
Help: "Use multi-thread downloads for files above this size",
Groups: "Copy",
}, {
Name: "multi_thread_streams",
Default: 4,
Help: "Number of streams to use for multi-thread downloads",
Groups: "Copy",
}, {
Name: "multi_thread_write_buffer_size",
Default: SizeSuffix(128 * 1024),
Help: "In memory buffer size for writing when in multi-thread mode",
Groups: "Copy",
}, {
Name: "multi_thread_chunk_size",
Default: SizeSuffix(64 * 1024 * 1024),
Help: "Chunk size for multi-thread downloads / uploads, if not set by filesystem",
Groups: "Copy",
}, {
Name: "use_json_log",
Default: false,
Help: "Use json log format",
Groups: "Logging",
}, {
Name: "order_by",
Default: "",
Help: "Instructions on how to order the transfers, e.g. 'size,descending'",
Groups: "Copy",
}, {
Name: "refresh_times",
Default: false,
Help: "Refresh the modtime of remote files",
Groups: "Copy",
}, {
Name: "no_console",
Default: false,
Help: "Hide console window (supported on Windows only)",
Groups: "Config",
}, {
Name: "fs_cache_expire_duration",
Default: 300 * time.Second,
Help: "Cache remotes for this long (0 to disable caching)",
Groups: "Config",
}, {
Name: "fs_cache_expire_interval",
Default: 60 * time.Second,
Help: "Interval to check for expired remotes",
Groups: "Config",
}, {
Name: "disable_http2",
Default: false,
Help: "Disable HTTP/2 in the global transport",
Groups: "Networking",
}, {
Name: "human_readable",
Default: false,
Help: "Print numbers in a human-readable format, sizes with suffix Ki|Mi|Gi|Ti|Pi",
Groups: "Config",
}, {
Name: "kv_lock_time",
Default: 1 * time.Second,
Help: "Maximum time to keep key-value database locked by process",
Groups: "Config",
}, {
Name: "disable_http_keep_alives",
Default: false,
Help: "Disable HTTP keep-alives and use each connection once.",
Groups: "Networking",
}, {
Name: "metadata",
ShortOpt: "M",
Default: false,
Help: "If set, preserve metadata when copying objects",
Groups: "Metadata,Copy",
}, {
Name: "server_side_across_configs",
Default: false,
Help: "Allow server-side operations (e.g. copy) to work across different configs",
Groups: "Copy",
}, {
Name: "color",
Default: TerminalColorMode(0),
Help: "When to show colors (and other ANSI codes) AUTO|NEVER|ALWAYS",
Groups: "Config",
}, {
Name: "default_time",
Default: Time(time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)),
Help: "Time to show if modtime is unknown for files and directories",
Groups: "Config,Listing",
}, {
Name: "inplace",
Default: false,
Help: "Download directly to destination file instead of atomic download to temp/rename",
Groups: "Copy",
}, {
Name: "metadata_mapper",
Default: SpaceSepList{},
Help: "Program to run to transforming metadata before upload",
Groups: "Metadata",
}, {
Name: "partial_suffix",
Default: ".partial",
Help: "Add partial-suffix to temporary file name when --inplace is not used",
Groups: "Copy",
}}
// ConfigInfo is filesystem config options
type ConfigInfo struct {
LogLevel LogLevel `config:"log_level"`
StatsLogLevel LogLevel `config:"stats_log_level"`
UseJSONLog bool `config:"use_json_log"`
DryRun bool `config:"dry_run"`
Interactive bool `config:"interactive"`
CheckSum bool `config:"checksum"`
SizeOnly bool `config:"size_only"`
IgnoreTimes bool `config:"ignore_times"`
IgnoreExisting bool `config:"ignore_existing"`
IgnoreErrors bool `config:"ignore_errors"`
ModifyWindow time.Duration `config:"modify_window"`
Checkers int `config:"checkers"`
Transfers int `config:"transfers"`
ConnectTimeout time.Duration `config:"contimeout"` // Connect timeout
Timeout time.Duration `config:"timeout"` // Data channel timeout
ExpectContinueTimeout time.Duration `config:"expect_continue_timeout"`
Dump DumpFlags `config:"dump"`
InsecureSkipVerify bool `config:"no_check_certificate"` // Skip server certificate verification
DeleteMode DeleteMode `config:"delete_mode"`
MaxDelete int64 `config:"max_delete"`
MaxDeleteSize SizeSuffix `config:"max_delete_size"`
TrackRenames bool `config:"track_renames"` // Track file renames.
TrackRenamesStrategy string `config:"track_renames_strategy"` // Comma separated list of strategies used to track renames
Retries int `config:"retries"` // High-level retries
RetriesInterval time.Duration `config:"retries_sleep"`
LowLevelRetries int `config:"low_level_retries"`
UpdateOlder bool `config:"update"` // Skip files that are newer on the destination
NoGzip bool `config:"no_gzip_encoding"` // Disable compression
MaxDepth int `config:"max_depth"`
IgnoreSize bool `config:"ignore_size"`
IgnoreChecksum bool `config:"ignore_checksum"`
IgnoreCaseSync bool `config:"ignore_case_sync"`
FixCase bool `config:"fix_case"`
NoTraverse bool `config:"no_traverse"`
CheckFirst bool `config:"check_first"`
NoCheckDest bool `config:"no_check_dest"`
NoUnicodeNormalization bool `config:"no_unicode_normalization"`
NoUpdateModTime bool `config:"no_update_modtime"`
NoUpdateDirModTime bool `config:"no_update_dir_modtime"`
DataRateUnit string `config:"stats_unit"`
CompareDest []string `config:"compare_dest"`
CopyDest []string `config:"copy_dest"`
BackupDir string `config:"backup_dir"`
Suffix string `config:"suffix"`
SuffixKeepExtension bool `config:"suffix_keep_extension"`
UseListR bool `config:"fast_list"`
BufferSize SizeSuffix `config:"buffer_size"`
BwLimit BwTimetable `config:"bwlimit"`
BwLimitFile BwTimetable `config:"bwlimit_file"`
TPSLimit float64 `config:"tpslimit"`
TPSLimitBurst int `config:"tpslimit_burst"`
BindAddr net.IP `config:"bind_addr"`
DisableFeatures []string `config:"disable"`
UserAgent string `config:"user_agent"`
Immutable bool `config:"immutable"`
AutoConfirm bool `config:"auto_confirm"`
StreamingUploadCutoff SizeSuffix `config:"streaming_upload_cutoff"`
StatsFileNameLength int `config:"stats_file_name_length"`
AskPassword bool `config:"ask_password"`
PasswordCommand SpaceSepList `config:"password_command"`
UseServerModTime bool `config:"use_server_modtime"`
MaxTransfer SizeSuffix `config:"max_transfer"`
MaxDuration time.Duration `config:"max_duration"`
CutoffMode CutoffMode `config:"cutoff_mode"`
MaxBacklog int `config:"max_backlog"`
MaxStatsGroups int `config:"max_stats_groups"`
StatsOneLine bool `config:"stats_one_line"`
StatsOneLineDate bool `config:"stats_one_line_date"` // If we want a date prefix at all
StatsOneLineDateFormat string `config:"stats_one_line_date_format"` // If we want to customize the prefix
ErrorOnNoTransfer bool `config:"error_on_no_transfer"` // Set appropriate exit code if no files transferred
Progress bool `config:"progress"`
ProgressTerminalTitle bool `config:"progress_terminal_title"`
Cookie bool `config:"use_cookies"`
UseMmap bool `config:"use_mmap"`
CaCert []string `config:"ca_cert"` // Client Side CA
ClientCert string `config:"client_cert"` // Client Side Cert
ClientKey string `config:"client_key"` // Client Side Key
MultiThreadCutoff SizeSuffix `config:"multi_thread_cutoff"`
MultiThreadStreams int `config:"multi_thread_streams"`
MultiThreadSet bool `config:"multi_thread_set"` // whether MultiThreadStreams was set (set in fs/config/configflags)
MultiThreadChunkSize SizeSuffix `config:"multi_thread_chunk_size"` // Chunk size for multi-thread downloads / uploads, if not set by filesystem
MultiThreadWriteBufferSize SizeSuffix `config:"multi_thread_write_buffer_size"`
OrderBy string `config:"order_by"` // instructions on how to order the transfer
UploadHeaders []*HTTPOption `config:"upload_headers"`
DownloadHeaders []*HTTPOption `config:"download_headers"`
Headers []*HTTPOption `config:"headers"`
MetadataSet Metadata `config:"metadata_set"` // extra metadata to write when uploading
RefreshTimes bool `config:"refresh_times"`
NoConsole bool `config:"no_console"`
TrafficClass uint8 `config:"traffic_class"`
FsCacheExpireDuration time.Duration `config:"fs_cache_expire_duration"`
FsCacheExpireInterval time.Duration `config:"fs_cache_expire_interval"`
DisableHTTP2 bool `config:"disable_http2"`
HumanReadable bool `config:"human_readable"`
KvLockTime time.Duration `config:"kv_lock_time"` // maximum time to keep key-value database locked by process
DisableHTTPKeepAlives bool `config:"disable_http_keep_alives"`
Metadata bool `config:"metadata"`
ServerSideAcrossConfigs bool `config:"server_side_across_configs"`
TerminalColorMode TerminalColorMode `config:"color"`
DefaultTime Time `config:"default_time"` // time that directories with no time should display
Inplace bool `config:"inplace"` // Download directly to destination file instead of atomic download to temp/rename
PartialSuffix string `config:"partial_suffix"`
MetadataMapper SpaceSepList `config:"metadata_mapper"`
}
func init() {
// Set any values which aren't the zero for the type
globalConfig.DeleteMode = DeleteModeDefault
// Register the config and fill globalConfig with the defaults
RegisterGlobalOptions(OptionsInfo{Name: "main", Opt: globalConfig, Options: ConfigOptionsInfo, Reload: globalConfig.Reload})
// initial guess at log level from the flags
globalConfig.LogLevel = initialLogLevel()
}
// Reload assumes the config has been edited and does what is necessary to make it live
func (ci *ConfigInfo) Reload(ctx context.Context) error {
// Set -vv if --dump is in use
if ci.Dump != 0 && ci.LogLevel != LogLevelDebug {
Logf(nil, "Automatically setting -vv as --dump is enabled")
ci.LogLevel = LogLevelDebug
}
// If --dry-run or -i then use NOTICE as minimum log level
if (ci.DryRun || ci.Interactive) && ci.StatsLogLevel > LogLevelNotice {
ci.StatsLogLevel = LogLevelNotice
}
// If --use-json-log then start the JSON logger
if ci.UseJSONLog {
InstallJSONLogger(ci.LogLevel)
}
// Check --compare-dest and --copy-dest
if len(ci.CompareDest) > 0 && len(ci.CopyDest) > 0 {
return fmt.Errorf("can't use --compare-dest with --copy-dest")
}
// Check --stats-one-line and dependent flags
switch {
case len(ci.StatsOneLineDateFormat) > 0:
ci.StatsOneLineDate = true
ci.StatsOneLine = true
case ci.StatsOneLineDate:
ci.StatsOneLineDateFormat = "2006/01/02 15:04:05 - "
ci.StatsOneLine = true
}
// Check --partial-suffix
if len(ci.PartialSuffix) > 16 {
return fmt.Errorf("--partial-suffix: Expecting suffix length not greater than %d but got %d", 16, len(ci.PartialSuffix))
}
// Make sure some values are > 0
nonZero := func(pi *int) {
if *pi <= 0 {
*pi = 1
}
}
// Check --stats-unit
if ci.DataRateUnit != "bits" && ci.DataRateUnit != "bytes" {
Errorf(nil, "Unknown unit %q passed to --stats-unit. Defaulting to bytes.", ci.DataRateUnit)
ci.DataRateUnit = "bytes"
}
// Check these are all > 0
nonZero(&ci.Retries)
nonZero(&ci.LowLevelRetries)
nonZero(&ci.Transfers)
nonZero(&ci.Checkers)
return nil
}
// Initial logging level
//
// Perform a simple check for debug flags to enable debug logging during the flag initialization
func initialLogLevel() LogLevel {
logLevel := LogLevelNotice
for argIndex, arg := range os.Args {
if strings.HasPrefix(arg, "-vv") && strings.TrimRight(arg, "v") == "-" {
logLevel = LogLevelDebug
}
if arg == "--log-level=DEBUG" || (arg == "--log-level" && len(os.Args) > argIndex+1 && os.Args[argIndex+1] == "DEBUG") {
logLevel = LogLevelDebug
}
if strings.HasPrefix(arg, "--verbose=") {
if level, err := strconv.Atoi(arg[10:]); err == nil && level >= 2 {
logLevel = LogLevelDebug
}
}
}
envValue, found := os.LookupEnv("RCLONE_LOG_LEVEL")
if found && envValue == "DEBUG" {
logLevel = LogLevelDebug
}
return logLevel
}
// TimeoutOrInfinite returns ci.Timeout if > 0 or infinite otherwise
func (ci *ConfigInfo) TimeoutOrInfinite() time.Duration {
if ci.Timeout > 0 {
return ci.Timeout
}
return ModTimeNotSupported
}
type configContextKeyType struct{}
// Context key for config
var configContextKey = configContextKeyType{}
// GetConfig returns the global or context sensitive context
func GetConfig(ctx context.Context) *ConfigInfo {
if ctx == nil {
return globalConfig
}
c := ctx.Value(configContextKey)
if c == nil {
return globalConfig
}
return c.(*ConfigInfo)
}
// CopyConfig copies the global config (if any) from srcCtx into
// dstCtx returning the new context.
func CopyConfig(dstCtx, srcCtx context.Context) context.Context {
if srcCtx == nil {
return dstCtx
}
c := srcCtx.Value(configContextKey)
if c == nil {
return dstCtx
}
return context.WithValue(dstCtx, configContextKey, c)
}
// AddConfig returns a mutable config structure based on a shallow
// copy of that found in ctx and returns a new context with that added
// to it.
func AddConfig(ctx context.Context) (context.Context, *ConfigInfo) {
c := GetConfig(ctx)
cCopy := new(ConfigInfo)
*cCopy = *c
newCtx := context.WithValue(ctx, configContextKey, cCopy)
return newCtx, cCopy
}
// ConfigToEnv converts a config section and name, e.g. ("my-remote",
// "ignore-size") into an environment name
// "RCLONE_CONFIG_MY-REMOTE_IGNORE_SIZE"
func ConfigToEnv(section, name string) string {
return "RCLONE_CONFIG_" + strings.ToUpper(section+"_"+strings.ReplaceAll(name, "-", "_"))
}
// OptionToEnv converts an option name, e.g. "ignore-size" into an
// environment name "RCLONE_IGNORE_SIZE"
func OptionToEnv(name string) string {
return "RCLONE_" + strings.ToUpper(strings.ReplaceAll(name, "-", "_"))
}