Proper casing for Dockerfile, fixes #361

syntax/Dockerfile.vim

@@ -0,0 +1,68 @@
+if exists('g:polyglot_disabled') && index(g:polyglot_disabled, 'dockerfile') != -1
+  finish
+endif
+
+" Vim syntax file
+" Language: Dockerfile
+" Maintainer: Eugene Kalinin
+" Latest Revision: 11 September 2013
+" Source: http://docs.docker.io/en/latest/use/builder/
+
+if exists("b:current_syntax")
+  finish
+endif
+
+" case sensitivity (fix #17)
+" syn case  ignore
+
+" Keywords
+syn keyword dockerfileKeywords FROM AS MAINTAINER RUN CMD COPY
+syn keyword dockerfileKeywords EXPOSE ADD ENTRYPOINT
+syn keyword dockerfileKeywords VOLUME USER WORKDIR ONBUILD
+syn keyword dockerfileKeywords LABEL ARG HEALTHCHECK SHELL
+
+" Bash statements
+setlocal iskeyword+=-
+syn keyword bashStatement add-apt-repository adduser apk apt-get aptitude apt-key autoconf bundle
+syn keyword bashStatement cd chgrp chmod chown clear complete composer cp curl du echo egrep
+syn keyword bashStatement expr fgrep find gem gnufind gnugrep gpg grep groupadd head less ln
+syn keyword bashStatement ls make mkdir mv node npm pacman pip pip3 php python rails rm rmdir rpm ruby
+syn keyword bashStatement sed sleep sort strip tar tail tailf touch useradd virtualenv yum
+syn keyword bashStatement usermod bash cat a2ensite a2dissite a2enmod a2dismod apache2ctl
+syn keyword bashStatement wget gzip
+
+" Strings
+syn region dockerfileString start=/"/ skip=/\\"|\\\\/ end=/"/
+syn region dockerfileString1 start=/'/ skip=/\\'|\\\\/ end=/'/
+
+" Emails
+syn region dockerfileEmail start=/</ end=/>/ contains=@ oneline
+
+" Urls
+syn match dockerfileUrl /\(http\|https\|ssh\|hg\|git\)\:\/\/[a-zA-Z0-9\/\-\.]\+/
+
+" Task tags
+syn keyword dockerfileTodo contained TODO FIXME XXX
+
+" Comments
+syn region dockerfileComment start="#" end="\n" contains=dockerfileTodo
+syn region dockerfileEnvWithComment start="^\s*ENV\>" end="\n" contains=dockerfileEnv
+syn match dockerfileEnv contained /\<ENV\>/
+
+" Highlighting
+hi link dockerfileKeywords  Keyword
+hi link dockerfileEnv       Keyword
+hi link dockerfileString    String
+hi link dockerfileString1   String
+hi link dockerfileComment   Comment
+hi link dockerfileEmail     Identifier
+hi link dockerfileUrl       Identifier
+hi link dockerfileTodo      Todo
+hi link bashStatement       Function
+
+let b:current_syntax = "dockerfile"
+
+set commentstring=#\ %s
+
+" Enable automatic comment insertion
+setlocal fo+=cro