Add VtrSendFile command and docs

Closes #30 - Add SendFile command proper

doc/vim-tmux-runner.txt

@@ -21,6 +21,7 @@ CONTENTS                                                        *vtr-contents*
         2.11 ............................... |VtrClearRunner|
         2.12 ............................... |VtrFlushCommand|
         2.13 ............................... |VtrSendCtrlD|
+        2.14 ............................... |VtrSendFile|
       3. Configuration ................... |VTR-Configuration|
         3.1 ................................ |VtrPercentage|
         3.2 ................................ |VtrOrientation|
@@ -217,6 +218,29 @@ Send Ctrl-D key sequence to the runner without resetting the current command.
 This is useful if you are repeatedly running a script in the debugger and
 regularly need to kill the repl.
 
+------------------------------------------------------------------------------
+                                                                  *VtrSendFile*
+:VtrSendFile[!]
+
+Send a command to execute the current file as a script. The command will be
+crafted based on the filetype of the current buffer, e.g. for a file "foo.rb"
+(filetype "ruby"), the command would be "ruby {filename}" with {filename}
+populated based on the current file. There are default configurations provided
+for ruby, javascript (via node), python, and sh. You can override and or add
+by defining a dictionary in your Vimrc, e.g.:
+
+  let g:vtr_filteype_runner_overrides = {
+        \ 'ruby': 'ruby -w {file}',
+        \ 'haskell': 'runhaskell {file}'
+        \ }
+
+The key for each entry should be the fileype, and the value is a string for
+which the {file} portion will be replaced by the current file name when run.
+Any settings in your g:vtr_filteype_runner_overrides will take precedence
+over the default values.
+
+This command expects a runner to be attached. Add ! to force a runner.
+
 ==============================================================================
 CONFIGURATION (3)                                           *VTR-Configuration*
 

plugin/vim-tmux-runner.vim

@@ -376,6 +376,33 @@ function! s:SendCtrlD()
   call s:SendKeys('')
 endfunction
 
+function! s:SendFileViaVtr(ensure_pane)
+    let runners = s:CurrentFiletypeRunners()
+    if has_key(runners, &filetype)
+        write
+        let runner = runners[&filetype]
+        let local_file_path = expand('%')
+        let run_command = substitute(runner, '{file}', local_file_path, 'g')
+        call VtrSendCommand(run_command, a:ensure_pane)
+    else
+        echoerr 'Unable to determine runner'
+    endif
+endfunction
+
+function! s:CurrentFiletypeRunners()
+    let default_runners = {
+            \ 'ruby': 'ruby {file}',
+            \ 'javascript': 'node {file}',
+            \ 'python': 'python {file}',
+            \ 'sh': 'sh {file}'
+            \ }
+    if exists("g:vtr_filteype_runner_overrides")
+      return extend(copy(default_runners), g:vtr_filteype_runner_overrides)
+    else
+      return default_runners
+    endif
+endfunction
+
 function! VtrSendCommand(command, ...)
     let ensure_pane = 0
     if exists("a:1")
@@ -385,9 +412,10 @@ function! VtrSendCommand(command, ...)
 endfunction
 
 function! s:DefineCommands()
-    command! -nargs=? VtrOpenRunner call s:EnsureRunnerPane(<args>)
     command! -bang -nargs=? VtrSendCommandToRunner call s:SendCommandToRunner(<bang>0, <f-args>)
     command! -bang -range VtrSendLinesToRunner <line1>,<line2>call s:SendLinesToRunner(<bang>0)
+    command! -bang VtrSendFile call s:SendFileViaVtr(<bang>0)
+    command! -nargs=? VtrOpenRunner call s:EnsureRunnerPane(<args>)
     command! VtrKillRunner call s:KillRunnerPane()
     command! VtrFocusRunner call s:FocusRunnerPane()
     command! VtrReorientRunner call s:ReorientRunner()
@@ -412,6 +440,7 @@ function! s:DefineKeymaps()
         nnoremap <leader>dr :VtrDetachRunner<cr>
         nnoremap <leader>cr :VtrClearRunner<cr>
         nnoremap <leader>fc :VtrFlushCommand<cr>
+        nnoremap <leader>sf :VtrSendFile<cr>
     endif
 endfunction
 
@@ -435,7 +464,6 @@ function! s:InitializeVariables()
     let s:vtr_orientation = g:VtrOrientation
 endfunction
 
-
 call s:InitializeVariables()
 call s:DefineCommands()
 call s:DefineKeymaps()