Add support for syntax highlighting for Containerfile

[erik-brangs]

Some tools (e.g. Buildah) support Containerfile as an alternative to Dockerfile.

It would be nice if the Eclipse Linux Tools offered syntax highlighting for Containerfile-

[erik-brangs]

I actually tried to implement this but I wasn't able to make it work. I looked at 502598e and tried to do it in a similar way.

I was only able to make it work for Containerfile.something but not for Containerfile:

diff --git a/containers/org.eclipse.linuxtools.docker.editor.ls/plugin.xml b/containers/org.eclipse.linuxtools.docker.editor.ls/plugin.xml
index f68b06f98d..a51f24f8a8 100644
--- a/containers/org.eclipse.linuxtools.docker.editor.ls/plugin.xml
+++ b/containers/org.eclipse.linuxtools.docker.editor.ls/plugin.xml
@@ -25,9 +25,9 @@
          point="org.eclipse.core.contenttype.contentTypes">
       <content-type
             base-type="org.eclipse.core.runtime.text"
-            file-extensions="Dockerfile,dockerfile"
-            file-names="Dockerfile"
-            file-patterns="Dockerfile.*"
+            file-extensions="Dockerfile,dockerfile,Containerfile,containerfile"
+            file-names="Dockerfile,Containerfile"
+            file-patterns="Dockerfile.*,Containerfile.*"
             id="org.eclipse.linuxtools.docker.editor.ls"
             name="Dockerfile"
             priority="normal">

[akurtakov]

Is Containerfile just a rename of Dockerfile ?

[erik-brangs]

Yes, it's just another name that's supposed to be more vendor-neutral.

[akurtakov]

After the build completes youl should be able to install new dockertools from https://download.eclipse.org/linuxtools/updates-docker-nightly/ with support for Containerfile in it.

[erik-brangs]

I installed the nightly in my Eclipse installation at work and the Containerfile syntax highlighting seems to work fine.

Thank you.