diff --git a/haskell/hello-world/HELP.md b/haskell/hello-world/HELP.md new file mode 100644 index 0000000..1fd445a --- /dev/null +++ b/haskell/hello-world/HELP.md @@ -0,0 +1,88 @@ +# Help + +## Running the tests + +To run the test suite, execute the following command: + +```bash +stack test +``` + +#### If you get an error message like this... + +``` +No .cabal file found in directory +``` + +or + +``` +RedownloadInvalidResponse Request { +... +} + "/home/username/.stack/build-plan/lts-xx.yy.yaml" (Response {responseStatus = Status {statusCode = 404, statusMessage = "Not Found"}, +``` + +You are probably running an old stack version and need +to upgrade it. Try running: + +```bash +stack upgrade +``` + +Or see other options for upgrading at [Stack documentation](https://docs.haskellstack.org/en/stable/install_and_upgrade/#upgrade). + +#### Otherwise, if you get an error message like this... + +``` +No compiler found, expected minor version match with... +Try running "stack setup" to install the correct GHC... +``` + +Just do as it says and it will download and install +the correct compiler version: + +```bash +stack setup +``` + + +If you want to play with your solution in GHCi, just run the command: + +```bash +stack ghci +``` + +## Submitting your solution + +You can submit your solution using the `exercism submit src/HelloWorld.hs` command. +This command will upload your solution to the Exercism website and print the solution page's URL. + +It's possible to submit an incomplete solution which allows you to: + +- See how others have completed the exercise +- Request help from a mentor + +## Need to get help? + +If you'd like help solving the exercise, check the following pages: + +- The [Haskell track's documentation](https://exercism.org/docs/tracks/haskell) +- [Exercism's support channel on gitter](https://gitter.im/exercism/support) +- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs) + +Should those resources not suffice, you could submit your (incomplete) solution to request mentoring. + +## Getting Started + +Please refer to the [installation](https://exercism.io/tracks/haskell/installation) +and [learning](https://exercism.io/tracks/haskell/learning) help pages. + +## Feedback, Issues, Pull Requests + +The [exercism/haskell](https://github.com/exercism/haskell) repository on +GitHub is the home for all of the Haskell exercises. + +If you have feedback about an exercise, or want to help implementing a new +one, head over there and create an issue. We'll do our best to help you! +{{ with .Spec.Credits }} \ No newline at end of file diff --git a/haskell/hello-world/README.md b/haskell/hello-world/README.md new file mode 100644 index 0000000..f454ebc --- /dev/null +++ b/haskell/hello-world/README.md @@ -0,0 +1,45 @@ +# Hello World + +Welcome to Hello World on Exercism's Haskell Track. +If you need help running the tests or submitting your code, check out `HELP.md`. + +## Instructions + +The classical introductory exercise. Just say "Hello, World!". + +["Hello, World!"](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program) is +the traditional first program for beginning programming in a new language +or environment. + +The objectives are simple: + +- Write a function that returns the string "Hello, World!". +- Run the test suite and make sure that it succeeds. +- Submit your solution and check it at the website. + +If everything goes well, you will be ready to fetch your first real exercise. + +To complete this exercise, you need to implement the `hello` function. + +You will find the type signature for `hello` already in place, +but it is up to you to define the function. + +## Source + +### Created by + +- @ErikSchierboom + +### Contributed to by + +- @iHiD +- @kytrinyx +- @petertseng +- @ppartarr +- @rbasso +- @sshine +- @tejasbubane + +### Based on + +This is an exercise to introduce users to using Exercism - http://en.wikipedia.org/wiki/%22Hello,_world!%22_program \ No newline at end of file diff --git a/haskell/hello-world/examples/success-standard/package.yaml b/haskell/hello-world/examples/success-standard/package.yaml new file mode 100644 index 0000000..7e8f159 --- /dev/null +++ b/haskell/hello-world/examples/success-standard/package.yaml @@ -0,0 +1,16 @@ +name: hello-world + +dependencies: + - base + +library: + exposed-modules: HelloWorld + source-dirs: src + +tests: + test: + main: Tests.hs + source-dirs: test + dependencies: + - hello-world + - hspec diff --git a/haskell/hello-world/package.yaml b/haskell/hello-world/package.yaml new file mode 100644 index 0000000..20feca0 --- /dev/null +++ b/haskell/hello-world/package.yaml @@ -0,0 +1,21 @@ +name: hello-world +version: 1.1.0.5 + +dependencies: + - base + +library: + exposed-modules: HelloWorld + source-dirs: src + ghc-options: -Wall + # dependencies: + # - foo # List here the packages you + # - bar # want to use in your solution. + +tests: + test: + main: Tests.hs + source-dirs: test + dependencies: + - hello-world + - hspec diff --git a/haskell/hello-world/src/HelloWorld.hs b/haskell/hello-world/src/HelloWorld.hs new file mode 100644 index 0000000..3dcb711 --- /dev/null +++ b/haskell/hello-world/src/HelloWorld.hs @@ -0,0 +1,4 @@ +module HelloWorld (hello) where + +hello :: String +hello = "Hello, World!" diff --git a/haskell/hello-world/stack.yaml b/haskell/hello-world/stack.yaml new file mode 100644 index 0000000..35c2e5b --- /dev/null +++ b/haskell/hello-world/stack.yaml @@ -0,0 +1 @@ +resolver: lts-16.21 diff --git a/haskell/hello-world/test/Tests.hs b/haskell/hello-world/test/Tests.hs new file mode 100644 index 0000000..ee88a73 --- /dev/null +++ b/haskell/hello-world/test/Tests.hs @@ -0,0 +1,13 @@ +import Test.Hspec (Spec, it, shouldBe) +import Test.Hspec.Runner (configFastFail, defaultConfig, hspecWith) + +import HelloWorld (hello) + +main :: IO () +main = hspecWith defaultConfig {configFastFail = True} specs + +specs :: Spec +specs = it "hello" $ + hello `shouldBe` "Hello, World!" + +-- 5c542864b011fb742aa95ca950d3473ce168ec8c