# CHANGELOG

- v2.1.61

  - upgrade deps
  - security patches

- v2.1.60

  - [hs] improved help subsystem
  - fixed possible errors
  - improved codes for linting issues
  - upgrade deps
  - security patches

- v2.1.55

  - UPGRADE GO TOOLCHAIN TO 1.24.x (1.24.5)
  - upgrade deps

- v2.1.51

  - upgrade deps
  - security patch

- v2.1.50

  - upgrade deps
    - logg - update fg of INFO level
    - is - added `Color.AddAndNew()`

- v2.1.48

  - improved app version for dev-time
    `conf.Version` will be unchanged if passing an empty ("-") version from main()
  - update workflow file to improve release notes
  - upgrade deps
    - logg - fix error in verbose mode

- v2.1.47

  - update workflow file to improve release notes
  - upgrade deps
    - is - added more os & arch detector such as `BSD()`
    - logg - added `ResetDefault()`
    - store - doc to dupS

- v2.1.46

  - improved builtin help system command - support history commands
  - remove `dirs` since it moved into `hedzr/is` repo
  - added `ActionRunHelpSystem`, run it with `app.DoBuiltinAction(ctx,action)`
  - improved prompt example app (history support)
  - upgrade deps
    - is - added `dirs` for common folders; history supports in `makenewterm`
    - logg - added `Painter` interface (still unstable)

- v2.1.45

  - upgrade deps
  - security patches

- v2.1.43

  - improved `RedirectTo`
    - fix redirectTo cmd in help screen
    - changed to `RedirectTo(dottedPath string, recursive ...bool) CommandBuilder`
      support checking if any parents has been redirected so that a child subcmd can be forwarded as is
  - improved help screen
    - fix align between short cmd and long
  - REPLACED with new build system / gh actions / makefiles

- v2.1.39

  - improved `devmode`
    - cleanup codes moved into `is` lib
    - improved logics
  - remove `bi` as a title of `built-info` internal command
  - improved short-title in help screen
  - improved codes to describ `ParsedState` better
  - fix help system to work for `help` command without args
  - upgrade deps
    - `is` - improved cross-building and cross-working, add `devmode` state
    - `logg` - compliant with `devmode` in `is/states`

- v2.1.38

  - implement reverse binding to struct field when using `FromStruct(&structValue)`
    - commandbuilder: added `BindPositionalArgsPtr(varptr *[]string)`
    - flagbuilder: added `BindVarPtr(varptr any)`
    - improved structbuilder
    - improved devmode warning to tip developer the proper usage for bind-to-field
  - improved `ActionEnum`: added `ActionNone`
  - fix `~~debug` debug screen - added positional args dump section
  - fix default-value in help screen
    - sometimes envvar cannot be filled into default-value field
    - fix `onEnvVarMatched` to fill in default-value field, and typo

- v2.1.37

  - added `FromStruct()` to commandbuilder
    - reimplemented structbuilder to compliant with both root and subcmd cases
  - improved backtraceCmdNamesG to trace the cycle ref case of owner pointer, and give a warning to developer
  - fix `pkg/logz`'s `SetLevel()` to apply the setting level to global logz (`logg/slog`)
  - fix helpscreen to remove the double empty lines
  - fix `WithOpts` to take effects specially for `WithArgs(args...)`
  - upgrade deps
    - `is` - fix the raising `states.on[State]Changed` (state = Debug or Trace)
    - `logg` - fix/improved init.go for states changed

- v2.1.36

  - added `BuildFrom(structValue,opts...)` to `Creator` interface
  - added new example app `examples/tiny/struct`
  - added new builder `FromStruct` to build the command system from a struct value
    you can write a struct type and pass its value into FromStruct to build root
    command and its subcommands now.
  - fix `RootBuilder()` caused incorrect inCmd (-1)
  - fix a debug call
  - fix `OwnerIsNil` ...

- v2.1.35

  - improved `prompt` examples
  - fix withopts.go - uses `basics.Openable`
  - fix devmode.go - uses `term.DisableColors()`
  - upgrade deps
    - `is/term/color`, `term`, and `basics`

- v2.1.31

  - supported `SetCancelFunc()` & `WithCancelFunc()`
    cmdr.v2 manage ctx & cancel now, querying by `CancelFunc()`
  - improved `~~debug` output with the final value of a cmdline flag
  - improved `devmode.go`
  - update example apps
    - remove unnecessary codes
  - added prompt mode example app
  - upgrade deps
    - `is/term/color` - more `color.Color` implements
    - `Store` - support `BR()`

- v2.1.27

  - fix `color.Color` usages
  - extract common init seq to `earlierInitForNew`
  - upgrade deps
    - `is/term/color` - new `color.Color` type
    - `logg/slog` - fixed bugs

- v2.1.26

  - improved help-system - `app help` enter into prompt mode
  - added `Skip` to logz subpkg
  - `onEnvVarMathed`: improved the triggerring event - add missed `OnParsedValue`
  - devmode.go - disable info() in non-verbose-mode
  - fix dockerfile
  - remove `prompt` (move into cmdr-examples)
  - upgrade deps
    - `is/term` - added `MakeRawWrapped`, `MakeNewTerm`
    - `logg/slog` - improved howto dumping error object

- v2.1.25

  - improved devmode.go
  - improved doc; typo; example app code
  - upgrade deps
    - better ansi color builder
    - better err object in logz output - ensure stacktrace dumped in debug mode enabled

- v2.1.23

  - improved no-color mode [devmode.go]
  - ignore go test params in cmdline
  - improved help screen
    - nested indent for tree mode
  - improved no-color mode
  - improved `is.ColorfulTty`
  - improved pipe state detecting
    - improved help screen for pipe mode and redirect mode

- v2.1.22

  - added `passThruNow` for a subcmd
  - added `UpdateHitInfo` to `CmdS`
  - fix `HELP=1` not work
    - improved autoenv feature
    - changed: `APP_VERSION` has no effect to map into `--version` (but `VERSION` can do it)
  - fix `ignoreUnmatched` for a subcmd - add as positional arg without leading '-'
  - fix `desc`, `examples` fields for help screen
  - fix/improved `BaseOpt` fields order for better inspecting in debugging time
  - upgrade deps & security patch

- v2.1.21

  - added `ignoreUnmatched` for a subcmd
    so that all unmatched flags are treated as positional args instead of raising an error
  - improved infra-tests
    - added `CtxKeyHelpScreenWriter` for testing
    - confirm `TestStoreGetSectionFrom` worked
    - added `tasksAfterRun` for finalVerifier in testing
    - improved `taskAfterParse`
  - fix `baseopt.Set()` for top-level flags
  - fix `cmd.Store(...)` & `cmd.Set(...)`
  - fix `--version` & `-#`
  - fix `--`
  - fix `flag.required` (a typo)
  - fix `flag.Clone()` for the recently-added fields
  - fix command heading in help screen
  - upgrade deps & security patch

- v2.1.19

  - enhanced `RedirectTo` to work for subcmd
    - improved `RedirectTo` in help screen
    - trace all `redirected` commands,
    - trace all matched `redirected` commands to avoid the dead loop
    - matching the flag with the both owners: this and `redirected` command
  - fix too long valid args not break in help screen
  - support `COLS` envvar to override termsize detector
  - improved `printTailLine()` for help screen
  - improved logz level which will sync'd with cmdline flag matched (eg, `--debug`)
  - improved description, examples, notes in help screen

- v2.1.18

  - fix *not-hidden* cmd/flg if its owner/parent is hidden in helpscreen
  - added `Cmd.HiddenBR`/`VendorHiddenBR`, and impl them for `*CmdS` and `*Flag`
  - improved desc, examples, and notes fields in help screen
  - improved errcheck, added `errShouldStopParsingLoop` for better cancel the parser's loop
  - improved `onUnknownCommandMatched` warning message form

- v2.1.17

  - upgrade deps
  - security patches

- v2.1.16

  - new feature `-W`-style for `Negatable Flag`
    - fix `workerS.commandsToStoreR` to support negatable `-W`-style
    - review the toggle-group matched branch and improve it to support negatable `-W`-style
    - improved CmdS.ensureXrefFlags to support new negatable-style (`-W`-style)
    - add debug branch for `CmdS.FlagBy()` for debuggiing the longName not found case
    - improved the report in toggle_group example
    - add new params as `Negatable(b bool, items ...string)`
  - added `cli.CommandBuilder.ToggleableFlags(group, items...)` for batch creating toggle-group flags
  - fix `Flag.GetDottedNamePath()`
  - fix expanding for desc, examples, header, footer, note, ...
  - moved examples/*.go into examples/common to solve the cycle imports
    - update all example apps codes
  - remove some unused params
  - remove unprocessed return values
  - upgrade deps

- v2.1.15

  - remove deprecated ref (/x/term)
  - upgrade deps

- v2.1.12

  - fix wrong dep in last release

- v2.1.11

  - completed `generate shell` for autocompletion feature of supported shells
  - completed `generate man` for manpages generating in deployment time
  - added `App.GetRunner() Runner`
  - fix unique worker and add shared app feature, added examples/shared/
  - fix workerS.String()
  - upgrade deps
  - security patches

- v2.1.10

  - fix a crash in printUsage() on a dyncmd object
  - upgrade deps
  - security patches

- v2.1.9

  - fix `~~tree` printing the root command
  - docs
  - upgrade deps
  - security patches

- v2.1.8

  - cmdr: fix command indent (help screen)
  - cmdr: remove `pkg/dir` since it moved into `hedzr/is`
  - cmdr: update ref to hedzr/is/dir
  - cmdr: mv `pkg/dir` into `hedzr/is`
  - upgrade deps

- v2.1.7

  - downgrade toolchain to go1.23.0
  - upgrade deps
  - cmdr: review & improve builtins commands and flags
  - cmdr: add `OwnerIsRoot()`, `IsRoot()`
  - cmdr: improved help screen
    - cut overlong titles to a new line
    - rename to `printCommandHeading()`, ...
    - rename to `printFlagHeading()`, ...
    - optimize the gap between short and long title if short is not a single char
    - cut off aliases if titles width is greater than tabstop, and move them to the next line
    - improved head-like flag, add a new line to remark it
  - cmdr: improved head-like flag matching algor to search the parents commands if they own a head-like flag
  - cmdr: change to `Flag.GetTitleFlagNamesBy(delimiter string, maxW...int) (title,rest string)`
  - cmdr: change to `BaseOpt.GetTitleNames(maxWidth ...int) (title, rest string)`

- v2.1.6

  - cmdr: fix calling `finalAction()` twice when redirectTo
  - cmdr: fix modified state of peripheral object in store
  - cmdr: fix external config file loading and write-back feature
  - upgrade deps

- v2.1.5

  - lots of improvements and fixes
    - cmdr: add a pure `prompt` app (not a cmdr example)
    - cmdr: fix unnecessary required flag in head_like.go
    - cmdr: implements help-system (part 1)
    - update local `SplitCommandString()`
    - cmdr: update onAction, passing writer into builtin action handlers
    - cmdr: fix helpScreenWriter/debugScreenWriter
    - cmdr: relayout postProcess()/preProcess()
    - update .vscode/launch.json
  - upgrade deps

- v2.1.3

  - lots of improvements and fixes
    - cmdr: split `Painter` interface from `helpPrinter`
    - cmdr: implements core algor for manpage output
    - cmdr: implements `showHelpScreenAsMan()`
    - cmdr: improve builtins commands
    - cmdr: improve `showVersion()`
    - cmdr: improve `showBuildInfo()`
    - cmdr: add `StripOrderPrefix()`
    - cmdr: add `PipeToReader()`
    - cmdr: add `lite-app.json` for `examples/tiny/lite` app
    - cmdr: load `app.json` and `.app.json` with internal tiny json loader
    - cmdr: fix `EnsureTree()` call in `Build()` at first time

- v2.1.2

  - lots of improvements and fixes
    - fix dockerfile
    - fix InvokeProc/InvokeShell
    - fix `OnEvaluateSubCommandsFromConfig`
    - added WithOnShowVersion, ...
    - added conf.GitDesc, BuilderComment
    - implements onPassThruCharMatched, ...
    - implements onShowVersion, ...
    - improved dyncmd (alias) feature
    - cleanup

- v2.1.1

  - lots of improvements and fixes
    - add `.LeadingPlusSign()` to negatable testing
    - fix litecmd.go to fit for `cli.Cmd`
    - add `.OnEvaluateSubCommandsFromConfig()` to `jumpCmd` - for cmdr-tests/examples/concise app
    - cmdr: fix `GetTitleNamesArrayMainly()` by prefered extracting name field
    - cmdr: fix `GetTitleNamesArray()` by adding missed `shorts` titles
    - cmdr: fix `CmdS.EqualTo()`
    - cmdr: fix `BaseOpt.ShotTitle()`
    - cmdr: add `OnEvaluateSubCommandsFromConfig()`
    - cmdr: add `LeadingPlusSign()`
    - fix CmdS. `AddSubCommand` & `AddFlag`
    - cmdr: add `negatable` flag (auto `--no-XXX`)
    - cmdr: improved `WithPeripherals(peripherals PeripheralMap)`
    - cmdr: implement PresetCmdLines
    - cmdr: implement InvokeProc and InvokeShell
    - cmdr: fix checkValidArgs
    - cmdr: fix checkRequired
    - cmdr: exposed `InvokeProc/Shell/Shell/PresetCmdLines`
    - cmdr: add `To()`
    - cmdr: add Flag.`GetTriggerredTitle()` (=`GetHitStr()`)
    - cmdr: add `ParsedState()`
    - cmdr: add `TestStoreGetSectionFrom()`
    - cmdr: add `OnAction` to `Creator`
    - cmdr: add `DottedPathToCommandOrFlag()`
    - cmdr: add `ActionDefault` to `ActionEnum`
    - fixed/improved `CmdS.SubCmdBy()/FlagBy()` Hedzr
    - improved examples/
    - add examples/cmd/preset-cmdline.go
    - add examples/cmd/invoke.go
    - add example app: valid-args
    - add example app: required
    - add example app: external-editor
  - upgrade deps
  - security patches

- v2.1.0

  - upgrade toolchain to go1.23.7
  - lots of improvements and fixes
    - fix typo in doc of `WithBuilders`
    - fix test definition
    - fix `Shorts()` returned unique items
    - exposed more package-level functions
    - add test `TestBaseOpt_GetDottedPath`
    - more walk functions
    - some subtests for parsing duration, parse int,float,complex, ...
    - make ActionEnum constants public too
    - make `dottedPathToCommandOrFlagG` public (as `DottedPathToCommandOrFlag(dottedPath)`
    - cmdr: define group name constants
    - cmdr: add `Error` and `Recycle()` to `Runner`
    - cmdr: add `DoBuiltinAction` to `Runner`
    - cmdr: add App.OnAction
    - cmdr: help-screen: fix the right part alignment
    - cmdr: help-screen: fix no `Flags:` title when a cmd owns all hidden flags
    - cmdr: help-screen: fix no `Commands:` title when a cmd owns all hidden subcmds
    - cmdr: help-screen: improved display style of required flag, valid-args flag
    - cmdr: help-screen: improved display style of header line
    - cmdr: help-screen: improved display style of head-like flag
    - cmdr: help-screen: improved display style if a flag has no short title
    - cmdr: toggle-group: fix to update into Stpre when matched
    - cmdr: toggle-group: fix to update default matched value
    - cmdr: help-screen: improved display style of redirect-to command
    - cmdr: help-screen: improved display style of required flag
    - cmdr: help-screen: improved display style of required flag, valid-args flag
    - cmdr: process `TransferIntoStore` interface to support default toggle-group value, and other cases for future
    - cmdr: defined constant `cli.CommandsStoreKey` = "app.cmd"
    - cmdr: builder: fix addCommand - avoid loop ref by insert itself as a child
    - cmdr: builder: added WithOpts(opts...)
    - cmdr: builder: added `RootBuilder(func(cli.CommandBuilder))`
    - cmdr: added `cmdr.Create(...)` for creating a new app, a replacement for `New()`
    - added CmdS/Cmd.`IsDynamicCommandsLoading()` & `IsDynamicFlagsLoading()`
    - improved OnEvalSubcommands `Info` log line to `Verbose`
    - improved Flag.SetEnvVars to ignore empty string
    - improved godoc for flagbuilder.go
    - improved godoc for `RedirectTo`...
    - cli/worker: builtins: `help` command, removed `usage` alias name
    - cli/worker: builtins: `version-sim` command, removed `version-simulate` alias name
    - cli: added `CmdAdder` interface
    - cli: added `SubCmdBy(longName)` and `FlagBy(longName)` to find them by title
    - CmdS: exclude duplicated insertion
    - predefined envvars: added `$EXE`, `$EXE_DIR`
    - move out cli/examples to top level
    - help-screen: record last group name to improve printing list (esp for some hidden items at first of a group)
    - help-screen: expand env vars for the strings
    - help-screen: colLeftTabbedWidth 56 -> 46, decrease it
    - help-screen: added `printNotes()`, in printing redirect-to feature
    - builder: Info(): added some blank lines
  - other fixes and improvements
  - more docs
  - more examples
  - remove unused file and cleanup
  - upgrade deps
  - security patch

- v2.0.17

  - upgrade deps
  - security patch

- v2.0.16

  - upgrade deps
  - security patch

- v2.0.15

  - upgrade deps
  - security patch

- v2.0.13

  - upgrade deps
  - security patch
  - fixed ext file location moved
  - added TasksParsed and TasksPostCleanup

- v2.0.11

  - upgrade deps
  - bugs fixed
  - safe guard while cmdr not parsed

- v2.0.10

  - upgrade deps
  - bugs fixed
  - safer api (ParsedState) even if cmdr.Run not invoked yet

- v2.0.10

  - security patches
  - bugs fixed
  - improved `Description(...)`, `Examples(...)`
  - shorten default tail-line
  - update litecmd.go

- v2.0.9

  - security patches
  - bugs fixed
  - uniform Store() & CmdStore() apis: `Set()` and `Store()`
  - change `loader.Load`
  - removed `exec` subpackage since it had been removed to `hedzr/is`
  - fix bindOpts to detect user's Args via `WithArgs(...)`
  - prevent internal jsonLoaderS's file not exists error
  - fixed `ForFileMax` to return errors
  - update tiny app / sample codes
  - add `LoadedSources`
  - add `VarLogDir`
  - fix `VarRunDir`
  - add `app.SetDesc()`
  - add `app.Description()`
  - add auto-env-vars-bindings feature
  - fix building on windows

- v2.0.8

  - fixed help screen, the missing envvars list
  - fixed dirs.VarRunDir, ...
  - fixed dyn-commands

- v2.0.7

  - update deps
  - security patches
  - bugs fixed
  - new features added

- v2.0.5

  - update deps
  - security patches

- v2.0.3

  - split loaders as a standalone repo
  - split examples and tests to standalone
  - update deps
  - fix bugs

- v2.0.2

  - remove dep to loaders/, this will reduce more 3rd-party libs deps from main module
  - more tunes for APIs

- v2.0.1

  - fix/improve map -> struct, from hedzr/store
  - more tests, more docs
  - slight corrections

- v2.0.0

  initial commit

  - integrated with store.Store
  - preProcess, parse, and exec
  - help screen, external editor, try parse value, atoa subpackage
  - mutual exclusive, just once, prerequisites, circuit break
  - sbom, --config, debug info screen

    a (string) to any (type) - To convert a string to an exact value according to the given meme.