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Experiment: cmdargs for CLI parsing #26

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Anviking
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@Anviking Anviking commented Mar 4, 2019

Issue Number

#7

Overview

  • I have tried out cmdargs for parsing command line arguments

Comments

  • Just an experiment, not polished
  • Naming gets confusing, would work better in a CLI module
  • Possibly a bit too advanced for our current usage
$ stack exec cardano-wallet-server --                                                                               
Hello, brave new world!
WalletServer {network = Mainnet, nodePort = 8080, walletServerPort = 8090}
$ stack exec cardano-wallet-server -- --help
Hello, brave new world!
Cardano Wallet vX.X.X

walletserver [OPTIONS]

Common flags:
  -m --mainnet               mainnet
  -t --testnet               testnet
  -n --nodeport=INT          port used for node-wallet communication
  -w --walletserverport=INT  port used for serving the wallet API
  -? --help                  Display help message
  -V --version               Print version information

@Anviking Anviking self-assigned this Mar 4, 2019
@KtorZ
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KtorZ commented Mar 5, 2019

Hmmm... There are a few things that worry me with this package 😅 ... The main one being:

(&=) :: (Data val, Data ann) => val -> ann -> val

From the type signature, one can already tell that chances that some nasty unsafe IO is happening are very high. It's probably safe in practice, but feels somewhat magical 🤷‍♂️

I'd advise going for optparse-applicative which is a bit more idiomatic I.M.O. (if we don't pick docopt as an alternative)

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Anviking commented Mar 5, 2019

If we can avoid creating a WalletParams record, I think docopt would be really nice.

@Anviking Anviking closed this Mar 6, 2019
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KtorZ commented Mar 6, 2019

Closing in favor of #27

@Anviking Anviking deleted the anviking/7/cmdargs branch March 7, 2019 14:52
KtorZ added a commit that referenced this pull request Mar 11, 2019
paweljakubas added a commit that referenced this pull request Mar 11, 2019
[3] Adding ticking function test and downloading block logic

[3] Block syncer working ok plus additional tests

[3] Cleaning the code

[3] cabal fix

[3] Complete refactoring to the review

[3] Final refactoring

[3] cabal fix

[3] hlint and weeding

[3] add killing thread at the end of test

[3] Replace IORef with MVar

refactoring #1 | inline intermediate functions to see more clearly + remove debug console prints

refactoring #2 | review indentation of 'where' clause

refactoring #3 | inline loop and remove test intrumentation from test logic

refactoring #4 | define generator for ticking args in a declarative manner

refactoring #5 | purify tickingFunctionTest and make it a monadic property

refactoring #6 | review naming in Arbitrary TickingArgs

refactoring #7 | use guards in mkConsecutiveTestBlocks

refactoring #8 | define single block generator from previous block

refactoring #9 | use 'fromPreviousBlock' and start loop with an already initialize list

refactoring #10 | purify mkConsecutiveTestBlocks by defining a test hash function

refactoring #11 | switch argument positions in mkConsecutiveTestBlocks

refactoring #12 | replace loop with built-in list 'iterate'

refactoring #13 | define Arbitrary instance for creating consecutive blocks

refactoring #14 | replace mkConsecutiveBlocks with a property parameter

refactoring #15 | use 'newMVar' instead or 'newEmptyMVar' + 'putMVar'

refactoring #16 | remove unecessary IO in 'writeToIORefAction'

refactoring #17 | replace takeMVar + putMVar with modifyMVar

refactoring #18 | review naming for 'writeToIORefAction' --> 'reader'

refactoring #19 | use a 'Map.lookup' instead of 'List.filter' + pattern-match

refactoring #20 | remove 'BlocksConsumed' wrapper

refactoring #21 | generalize reader with polymorphic parametrism

refactoring #22 | review pushNextBlocks indentation

refactoring #23 | group case pattern matches using tuple

refactoring #24 | remove 'Hash BlockHeader' from the block to inject

refactoring #25 | use synchronization lock instead of computed times

refactoring #26 | Move generation of duplicated blocks onto 'Arbitrary Blocks'

refactoring #27 | remove 'chunkSizes' in a favor of inline random selection

refactoring #28 | remove 'DeliveryMode' in favor of the most general case

refactoring #29 | cleanup wrapper types

refactoring #30 | generalize pushNextBlocks with parametric polymorphism

refactoring #31 | rename pushNextBlocks to 'writer'

refactoring #32 | define reader on Block instead of BlockHeaderHash

refactoring #33 | replace old reader with reader'

refactoring #34 | move creation of writer MVar inside writer action

refactoring #35 | remove header hash from 'Blocks'

refactoring #36 | rename 'consecutiveBlocks' into 'blocks'

refactoring #37 | re-organize module to separate effectful logic from declarations

refactoring #38 | move waiting logic into dedicated function

refactoring #39 | move 'done' and 'readerChan' initialization into reader and writer

refactoring #40 | use Millisecond instead of Second for shorter tests

refactoring #41 | Move creation of blocks from writer to 'Arbitrary Blocks'

[3] fix line width

[3] aligning the code with other code changes
paweljakubas added a commit that referenced this pull request Mar 11, 2019
[3] Adding ticking function test and downloading block logic

[3] Block syncer working ok plus additional tests

[3] Cleaning the code

[3] cabal fix

[3] Complete refactoring to the review

[3] Final refactoring

[3] cabal fix

[3] hlint and weeding

[3] add killing thread at the end of test

[3] Replace IORef with MVar

refactoring #1 | inline intermediate functions to see more clearly + remove debug console prints

refactoring #2 | review indentation of 'where' clause

refactoring #3 | inline loop and remove test intrumentation from test logic

refactoring #4 | define generator for ticking args in a declarative manner

refactoring #5 | purify tickingFunctionTest and make it a monadic property

refactoring #6 | review naming in Arbitrary TickingArgs

refactoring #7 | use guards in mkConsecutiveTestBlocks

refactoring #8 | define single block generator from previous block

refactoring #9 | use 'fromPreviousBlock' and start loop with an already initialize list

refactoring #10 | purify mkConsecutiveTestBlocks by defining a test hash function

refactoring #11 | switch argument positions in mkConsecutiveTestBlocks

refactoring #12 | replace loop with built-in list 'iterate'

refactoring #13 | define Arbitrary instance for creating consecutive blocks

refactoring #14 | replace mkConsecutiveBlocks with a property parameter

refactoring #15 | use 'newMVar' instead or 'newEmptyMVar' + 'putMVar'

refactoring #16 | remove unecessary IO in 'writeToIORefAction'

refactoring #17 | replace takeMVar + putMVar with modifyMVar

refactoring #18 | review naming for 'writeToIORefAction' --> 'reader'

refactoring #19 | use a 'Map.lookup' instead of 'List.filter' + pattern-match

refactoring #20 | remove 'BlocksConsumed' wrapper

refactoring #21 | generalize reader with polymorphic parametrism

refactoring #22 | review pushNextBlocks indentation

refactoring #23 | group case pattern matches using tuple

refactoring #24 | remove 'Hash BlockHeader' from the block to inject

refactoring #25 | use synchronization lock instead of computed times

refactoring #26 | Move generation of duplicated blocks onto 'Arbitrary Blocks'

refactoring #27 | remove 'chunkSizes' in a favor of inline random selection

refactoring #28 | remove 'DeliveryMode' in favor of the most general case

refactoring #29 | cleanup wrapper types

refactoring #30 | generalize pushNextBlocks with parametric polymorphism

refactoring #31 | rename pushNextBlocks to 'writer'

refactoring #32 | define reader on Block instead of BlockHeaderHash

refactoring #33 | replace old reader with reader'

refactoring #34 | move creation of writer MVar inside writer action

refactoring #35 | remove header hash from 'Blocks'

refactoring #36 | rename 'consecutiveBlocks' into 'blocks'

refactoring #37 | re-organize module to separate effectful logic from declarations

refactoring #38 | move waiting logic into dedicated function

refactoring #39 | move 'done' and 'readerChan' initialization into reader and writer

refactoring #40 | use Millisecond instead of Second for shorter tests

refactoring #41 | Move creation of blocks from writer to 'Arbitrary Blocks'

[3] fix line width

[3] aligning the code with other code changes

[3] hlint suggestion
paweljakubas added a commit that referenced this pull request Mar 11, 2019
[3] Adding ticking function test and downloading block logic

[3] Block syncer working ok plus additional tests

[3] Cleaning the code

[3] cabal fix

[3] Complete refactoring to the review

[3] Final refactoring

[3] cabal fix

[3] hlint and weeding

[3] add killing thread at the end of test

[3] Replace IORef with MVar

refactoring #1 | inline intermediate functions to see more clearly + remove debug console prints

refactoring #2 | review indentation of 'where' clause

refactoring #3 | inline loop and remove test intrumentation from test logic

refactoring #4 | define generator for ticking args in a declarative manner

refactoring #5 | purify tickingFunctionTest and make it a monadic property

refactoring #6 | review naming in Arbitrary TickingArgs

refactoring #7 | use guards in mkConsecutiveTestBlocks

refactoring #8 | define single block generator from previous block

refactoring #9 | use 'fromPreviousBlock' and start loop with an already initialize list

refactoring #10 | purify mkConsecutiveTestBlocks by defining a test hash function

refactoring #11 | switch argument positions in mkConsecutiveTestBlocks

refactoring #12 | replace loop with built-in list 'iterate'

refactoring #13 | define Arbitrary instance for creating consecutive blocks

refactoring #14 | replace mkConsecutiveBlocks with a property parameter

refactoring #15 | use 'newMVar' instead or 'newEmptyMVar' + 'putMVar'

refactoring #16 | remove unecessary IO in 'writeToIORefAction'

refactoring #17 | replace takeMVar + putMVar with modifyMVar

refactoring #18 | review naming for 'writeToIORefAction' --> 'reader'

refactoring #19 | use a 'Map.lookup' instead of 'List.filter' + pattern-match

refactoring #20 | remove 'BlocksConsumed' wrapper

refactoring #21 | generalize reader with polymorphic parametrism

refactoring #22 | review pushNextBlocks indentation

refactoring #23 | group case pattern matches using tuple

refactoring #24 | remove 'Hash BlockHeader' from the block to inject

refactoring #25 | use synchronization lock instead of computed times

refactoring #26 | Move generation of duplicated blocks onto 'Arbitrary Blocks'

refactoring #27 | remove 'chunkSizes' in a favor of inline random selection

refactoring #28 | remove 'DeliveryMode' in favor of the most general case

refactoring #29 | cleanup wrapper types

refactoring #30 | generalize pushNextBlocks with parametric polymorphism

refactoring #31 | rename pushNextBlocks to 'writer'

refactoring #32 | define reader on Block instead of BlockHeaderHash

refactoring #33 | replace old reader with reader'

refactoring #34 | move creation of writer MVar inside writer action

refactoring #35 | remove header hash from 'Blocks'

refactoring #36 | rename 'consecutiveBlocks' into 'blocks'

refactoring #37 | re-organize module to separate effectful logic from declarations

refactoring #38 | move waiting logic into dedicated function

refactoring #39 | move 'done' and 'readerChan' initialization into reader and writer

refactoring #40 | use Millisecond instead of Second for shorter tests

refactoring #41 | Move creation of blocks from writer to 'Arbitrary Blocks'

[3] fix line width

[3] aligning the code with other code changes

[3] hlint suggestion

[3] add .weeder.yaml to omit duplicateMaybes and groups to be announce during weeder execution

[3] undo weeder ignore file plus remove pragma and unnecessary exports
paweljakubas added a commit that referenced this pull request Mar 11, 2019
[3] Adding ticking function test and downloading block logic

[3] Block syncer working ok plus additional tests

[3] Cleaning the code

[3] cabal fix

[3] Complete refactoring to the review

[3] Final refactoring

[3] cabal fix

[3] hlint and weeding

[3] add killing thread at the end of test

[3] Replace IORef with MVar

refactoring #1 | inline intermediate functions to see more clearly + remove debug console prints

refactoring #2 | review indentation of 'where' clause

refactoring #3 | inline loop and remove test intrumentation from test logic

refactoring #4 | define generator for ticking args in a declarative manner

refactoring #5 | purify tickingFunctionTest and make it a monadic property

refactoring #6 | review naming in Arbitrary TickingArgs

refactoring #7 | use guards in mkConsecutiveTestBlocks

refactoring #8 | define single block generator from previous block

refactoring #9 | use 'fromPreviousBlock' and start loop with an already initialize list

refactoring #10 | purify mkConsecutiveTestBlocks by defining a test hash function

refactoring #11 | switch argument positions in mkConsecutiveTestBlocks

refactoring #12 | replace loop with built-in list 'iterate'

refactoring #13 | define Arbitrary instance for creating consecutive blocks

refactoring #14 | replace mkConsecutiveBlocks with a property parameter

refactoring #15 | use 'newMVar' instead or 'newEmptyMVar' + 'putMVar'

refactoring #16 | remove unecessary IO in 'writeToIORefAction'

refactoring #17 | replace takeMVar + putMVar with modifyMVar

refactoring #18 | review naming for 'writeToIORefAction' --> 'reader'

refactoring #19 | use a 'Map.lookup' instead of 'List.filter' + pattern-match

refactoring #20 | remove 'BlocksConsumed' wrapper

refactoring #21 | generalize reader with polymorphic parametrism

refactoring #22 | review pushNextBlocks indentation

refactoring #23 | group case pattern matches using tuple

refactoring #24 | remove 'Hash BlockHeader' from the block to inject

refactoring #25 | use synchronization lock instead of computed times

refactoring #26 | Move generation of duplicated blocks onto 'Arbitrary Blocks'

refactoring #27 | remove 'chunkSizes' in a favor of inline random selection

refactoring #28 | remove 'DeliveryMode' in favor of the most general case

refactoring #29 | cleanup wrapper types

refactoring #30 | generalize pushNextBlocks with parametric polymorphism

refactoring #31 | rename pushNextBlocks to 'writer'

refactoring #32 | define reader on Block instead of BlockHeaderHash

refactoring #33 | replace old reader with reader'

refactoring #34 | move creation of writer MVar inside writer action

refactoring #35 | remove header hash from 'Blocks'

refactoring #36 | rename 'consecutiveBlocks' into 'blocks'

refactoring #37 | re-organize module to separate effectful logic from declarations

refactoring #38 | move waiting logic into dedicated function

refactoring #39 | move 'done' and 'readerChan' initialization into reader and writer

refactoring #40 | use Millisecond instead of Second for shorter tests

refactoring #41 | Move creation of blocks from writer to 'Arbitrary Blocks'

[3] fix line width

[3] aligning the code with other code changes

[3] hlint suggestion

[3] add .weeder.yaml to omit duplicateMaybes and groups to be announce during weeder execution

[3] undo weeder ignore file plus remove pragma and unnecessary exports

[3] remove not needed imports
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