Add shell completions and README to build script

bin/build-all

@@ -52,7 +52,6 @@ createRelease() {
 		binname="$binname.exe"
 	fi
 
-	relname="../release/$BINNAME-$osname-$osarch"
 	echo "Creating $os/$arch binary..."
 
 	if [ "$arm" ]
@@ -62,15 +61,12 @@ createRelease() {
 		GOOS=$os GOARCH=$arch go build -ldflags "$ldflags" -o "out/$binname" exercism/main.go
 	fi
 
-	cd out
-
-	if [ "$osname" = windows ]
-	then
-		zip "$relname.zip" "$binname"
+	release_name="release/$BINNAME-$osname-$osarch"
+	if [ "$osname" = windows ]; then
+		(cd out && zip "../$release_name.zip" ../shell/* "./$binname")
 	else
-		tar cvzf "$relname.tgz" "$binname"
+		tar cvzf "$release_name.tgz" shell -C out "./$binname"
 	fi
-	cd ..
 }
 
 # Mac Releases

shell/README.md

@@ -0,0 +1,30 @@
+## Executable
+Unpack the archive relevant to your machine and place in $PATH
+
+## Shell Completion Scripts
+
+### Bash
+
+    mkdir -p ~/.config/exercism
+    mv ../shell/exercism_completion.bash ~/.config/exercism/exercism\exercism_completion.bash
+
+Load the completion in your `.bashrc`, `.bash_profile` or `.profile` by
+adding the following snippet:
+
+    if [ -f ~/.config/exercism/exercism_completion.bash ]; then
+      source ~/.config/exercism/exercism_completion.bash
+    fi
+
+### Zsh
+
+    mkdir -p ~/.config/exercism
+    mv ../shell/exercism_completion.zsh ~/.config/exercism/exercism_completion.zsh
+
+Load up the completion in your `.zshrc`, `.zsh_profile` or `.profile` by adding
+the following snippet
+
+    if [ -f ~/.config/exercism/exercism_completion.zsh ]; then
+      source ~/.config/exercism/exercism_completion.zsh
+    fi
+
+**Note:** If you are using the popular [oh-my-zsh](https://github.com/robbyrussell/oh-my-zsh) framework to manage your zsh plugins, you don't need to add the above snippet, all you need to do is create a file `exercism_completion.zsh` inside the `~/.oh-my-zsh/custom`.

shell/exercism_completion.bash

@@ -0,0 +1,71 @@
+_exercism () {
+  local cur prev
+
+  COMPREPLY=()   # Array variable storing the possible completions.
+  cur=${COMP_WORDS[COMP_CWORD]}
+  prev=${COMP_WORDS[COMP_CWORD-1]}
+
+  commands="configure debug download fetch list open
+  restore skip status submit tracks unsubmit
+  upgrade help"
+  tracks="csharp cpp clojure coffeescript lisp crystal
+  dlang ecmascript elixir elm elisp erlang
+  fsharp go haskell java javascript kotlin
+  lfe lua mips ocaml objective-c php
+  plsql perl5 python racket ruby rust scala
+  scheme swift typescript bash c ceylon
+  coldfusion delphi factor groovy haxe
+  idris julia nim perl6 pony prolog
+  purescript r sml vbnet powershell"
+  config_opts="--dir --host --key --api"
+  submit_opts="--test --comment"
+
+  if [ "${#COMP_WORDS[@]}" -eq 2 ]; then
+    COMPREPLY=( $( compgen -W  "${commands}" "${cur}" ) )
+    return 0
+  fi
+
+  if [ "${#COMP_WORDS[@]}" -eq 3 ]; then
+    case "${prev}" in
+      configure)
+        COMPREPLY=( $( compgen -W "${config_opts}" -- "${cur}" ) )
+        return 0
+        ;;
+      fetch)
+        COMPREPLY=( $( compgen -W "${tracks}" "${cur}" ) )
+        return 0
+        ;;
+      list)
+        COMPREPLY=( $( compgen -W "${tracks}" "${cur}" ) )
+        return 0
+        ;;
+      open)
+        COMPREPLY=( $( compgen -W "${tracks}" "${cur}" ) )
+        return 0
+        ;;
+      skip)
+        COMPREPLY=( $( compgen -W "${tracks}" "${cur}" ) )
+        return 0
+        ;;
+      status)
+        COMPREPLY=( $( compgen -W "${tracks}" "${cur}" ) )
+        return 0
+        ;;
+      submit)
+        COMPREPLY=( $( compgen -W "${submit_opts}" -- "${cur}" ) )
+        return 0
+        ;;
+      help)
+        COMPREPLY=( $( compgen -W "${commands}" "${cur}" ) )
+        return 0
+        ;;
+      *)
+        return 0
+        ;;
+    esac
+  fi
+
+  return 0
+}
+
+complete -F _exercism exercism

shell/exercism_completion.zsh

@@ -0,0 +1,38 @@
+_exercism() {
+    local curcontext="$curcontext" state line
+    typeset -A opt_args
+
+    local -a options
+    options=(debug:"Outputs useful debug information."
+             configure:"Writes config values to a JSON file."
+             demo:"Fetches a demo problem for each language track on exercism.io."
+             fetch:"Fetches your current problems on exercism.ios well as the next unstarted problem in each language."
+             restore:"Restores completed and current problems on from exercism.iolong with your most recent iteration for each."
+             submit:"Submits a new iteration to a problem on exercism.io."
+             unsubmit:"Deletes the most recently submitted iteration."
+             tracks:"List the available language tracks"
+             download:"Downloads and saves a specified submission into the local system"
+             help:"Shows a list of commands or help for one command")
+
+    _arguments -s -S \
+        {-c,--config}"[path to config file]:file:_files"    \
+        {-d,--debug}"[turn on verbose logging]" \
+        {-h,--help}"[show help]"                \
+        {-v,--version}"[print the version]"     \
+        '(-): :->command'                       \
+        '(-)*:: :->option-or-argument'          \
+        && return 0;
+
+    case $state in
+        (command)
+            _describe 'commands' options ;;
+        (option-or-argument)
+            case $words[1] in
+                s*)
+                    _files
+                    ;;
+            esac
+    esac
+}
+
+compdef '_exercism' exercism