Add dockerfile syntax support

README.md

@@ -33,6 +33,7 @@ Optionally download one of the [releases](https://github.com/sheerun/vim-polyglo
 - [css-color](https://github.com/ap/vim-css-color) (syntax)
 - [csv](https://github.com/chrisbra/csv.vim) (syntax, ftplugin, ftdetect)
 - [cucumber](https://github.com/tpope/vim-cucumber) (syntax, indent, compiler, ftplugin, ftdetect)
+- [dockerfile](https://github.com/honza/dockerfile.vim) (syntax, ftdetect)
 - [elixir](https://github.com/elixir-lang/vim-elixir) (syntax, indent, compiler, ftplugin, ftdetect)
 - [erlang](https://github.com/oscarh/vimerl) (syntax, indent, compiler, autoload, ftplugin)
 - [git](https://github.com/tpope/vim-git) (syntax, indent, ftplugin, ftdetect)

build

@@ -73,6 +73,7 @@ PACKS="
   css-color:ap/vim-css-color
   csv:chrisbra/csv.vim
   cucumber:tpope/vim-cucumber
+  dockerfile:honza/dockerfile.vim
   elixir:elixir-lang/vim-elixir
   erlang:oscarh/vimerl
   git:tpope/vim-git

ftdetect/polyglot.vim

@@ -12,6 +12,7 @@ endfunction
 autocmd BufNewFile,BufRead * call s:DetectCoffee()
 au BufRead,BufNewFile *.csv,*.dat,*.tsv,*.tab set filetype=csv
 autocmd BufNewFile,BufReadPost *.feature,*.story set filetype=cucumber
+au BufNewFile,BufRead Dockerfile set filetype=dockerfile
 au BufRead,BufNewFile *.ex,*.exs set filetype=elixir
 au FileType elixir setl sw=2 sts=2 et iskeyword+=!,?
 autocmd BufNewFile,BufRead *.git/{,modules/**/}{COMMIT_EDIT,MERGE_}MSG set ft=gitcommit

syntax/dockerfile.vim

@@ -0,0 +1,22 @@
+" dockerfile.vim - Syntax highlighting for Dockerfiles
+" Maintainer:   Honza Pokorny <http://honza.ca>
+" Version:      0.5
+
+
+if exists("b:current_syntax")
+    finish
+endif
+
+let b:current_syntax = "dockerfile"
+
+syntax case ignore
+
+syntax match dockerfileKeyword /\v^\s*(FROM|MAINTAINER|RUN|CMD|EXPOSE|ENV|ADD)\s/
+syntax match dockerfileKeyword /\v^\s*(ENTRYPOINT|VOLUME|USER|WORKDIR)\s/
+highlight link dockerfileKeyword Keyword
+
+syntax region dockerfileString start=/\v"/ skip=/\v\\./ end=/\v"/
+highlight link dockerfileString String
+
+syntax match dockerfileComment "\v^\s*#.*$"
+highlight link dockerfileComment Comment