Merge pull request #558 from gblmarquez/my

implements help for commands

pkg/omf/cli/omf.help.fish

-function omf.help
+function omf.help -a type_flag
+  switch $type_flag
+    case "i" "install" "get"
       echo \n"\
-  "(omf::dim)"Usage"(omf::off)"
-    omf "(omf::em)"action"(omf::off)" [options]
+      Install and list packages.
 
-  "(omf::dim)"Actions"(omf::off)"
+      "(omf::dim)"Usage:"(omf::off)"
+        omf install                 List available packages to install
+        omf install "(omf::em)"<name>"(omf::off)" | "(omf::em)"<url>"(omf::off)"  Install package by name or URL
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf install
+        omf install brew
+        omf install https://github.com/oh-my-fish/plugin-brew
+      "
+
+    case "u" "up" "upd" "update"
+      echo \n"\
+      Update Oh My Fish.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf update
+      "
+
+    case "destroy"
+      echo \n"\
+      Uninstall Oh My Fish.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf destroy
+      "
+
+    case "l" "li" "lis" "lst" "list"
+      echo \n"\
+      List local packages.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf list
+      "
+
+    case "t" "theme"
+      echo \n"\
+      Install and list themes.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf theme         List available themes to install
+        omf theme "(omf::em)"<name>"(omf::off)"  Install theme by name
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf theme
+        omf theme l
+      "
+
+    case "r" "rem" "rm" "remove" "uninstall"
+      echo \n"\
+      Remove a theme or package.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf remove "(omf::em)"<package name>"(omf::off)" | "(omf::em)"<theme name>"(omf::off)"  Removes a theme or package by name
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf remove brew
+        omf remove l
+      "
+
+    case "c" "cd"
+      echo \n"\
+      Change directory to root or plugin/theme directory.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf cd                                Change to Oh My Fish root folder
+        omf cd "(omf::em)"<package name>"(omf::off)" | "(omf::em)"<theme name>"(omf::off)"  Change to plugin or theme directory by name
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf cd
+        omf cd brew
+        omf cd l
+      "
+
+    case "n" "nw" "new"
+      echo \n"\
+      Create a new package from a template.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf new ("(omf::dim)"pkg"(omf::off)" | "(omf::dim)"theme"(omf::off)") "(omf::em)"<name>"(omf::off)"  Create a new package from a template
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf new pkg mypkg
+        omf new theme mytheme
+      "
+
+    case "s" "su" "sub" "submit"
+      echo \n"\
+      Submit a package to the registry.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf submit ("(omf::dim)"pkg"(omf::off)" | "(omf::dim)"theme"(omf::off)") "(omf::em)"<url>"(omf::off)"  Submit a package or theme to the registry
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf submit pkg https://github.com/oh-my-fish/plugin-mypkg
+        omf submit theme https://github.com/oh-my-fish/plugin-mythemes
+      "
+
+    case "q" "query"
+      echo \n"\
+      Query environment variables.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf query ["(omf::em)"<name>"(omf::off)"]  Query environment variables
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf query
+        omf query path
+        omf query version
+      "
+
+    case "d" "desc" "describe"
+      echo \n"\
+      Get information about what packages do.
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf describe                 Get information from all available packages
+        omf describe "(omf::em)"<name>"(omf::off)"  Get information from package by name
+
+      "(omf::dim)"Examples:"(omf::off)"
+        omf describe
+        omf describe brew
+      "
+
+    case "*"
+      echo \n"\
+      \$ omf [command] [arguments]
+
+      "(omf::dim)"Usage:"(omf::off)"
+        omf "(omf::em)"install"(omf::off)" [<name>|<url>]
+        omf "(omf::em)"theme"(omf::off)" [<name>]
+        omf "(omf::em)"remove"(omf::off)" [<name>]
+        omf "(omf::em)"update"(omf::off)"
+        omf "(omf::em)"help"(omf::off)" [<command>]
+
+      "(omf::dim)"Commands:"(omf::off)"
         "(omf::em)"l"(omf::off)"ist      List local packages.
         "(omf::em)"d"(omf::off)"escribe  Get information about what packages do.
         "(omf::em)"i"(omf::off)"nstall   Install one or more packages.
@@ -15,10 +150,13 @@ function omf.help
         "(omf::em)"s"(omf::off)"ubmit    Submit a package to the registry.
         "(omf::em)"q"(omf::off)"uery     Query environment variables.
         "(omf::em)"destroy"(omf::off)"   Uninstall Oh My Fish.
+        "(omf::em)"help"(omf::off)"      Shows help about a specific action.
 
-  "(omf::dim)"Options"(omf::off)"
+      "(omf::dim)"Options:"(omf::off)"
         "(omf::em)"--h"(omf::off)"elp     Display this help.
-    "(omf::em)"--v"(omf::off)"ersion  Display version.
+        "(omf::em)"--v"(omf::off)"ersion  Display version."
 
+      echo \n"\
       For more information visit → "(omf::em)"git.io/oh-my-fish"(omf::off)\n
+  end
 end

pkg/omf/omf.fish

@@ -35,7 +35,11 @@ end
 
 function omf -d "Oh My Fish"
   if test (count $argv) -eq 0
-    omf.help; and return 0
+    omf.help "main"; and return 0
+  else
+    if test $argv[-1] = "--help" -a (count $argv) = 2
+      omf.help $argv[1..-2]; and return 0
+    end
   end
 
   switch $argv[1]
@@ -55,7 +59,11 @@ function omf -d "Oh My Fish"
       end
 
     case "-h*" "--h*" "help"
-      omf.help
+      if test (count $argv) -eq 1
+        omf.help "main"
+      else
+        omf.help $argv[2]
+      end
 
     case "c" "cd"
       switch (count $argv)