Preserve trailing newline

Author: m-o-e

README.md

@@ -26,13 +26,13 @@ Do not edit this file. Edit 'docs/templates/README.md.j2' instead and run 'make
 
 | OS           | Arch    | Version               |      |
 | ------------ | ------- | --------------------- | ---- |
-| OSX (Darwin) | x86_64  | 1.0.1 (latest)  | [Download](https://github.com/busyloop/envcat/releases/tag/v1.0.1) |
-| Linux        | x86_64  | 1.0.1 (latest)  | [Download](https://github.com/busyloop/envcat/releases/tag/v1.0.1) |
-| Linux        | aarch64 | 1.0.1 (latest)  | [Download](https://github.com/busyloop/envcat/releases/tag/v1.0.1) |
+| OSX (Darwin) | x86_64  | 1.0.2 (latest)  | [Download](https://github.com/busyloop/envcat/releases/tag/v1.0.2) |
+| Linux        | x86_64  | 1.0.2 (latest)  | [Download](https://github.com/busyloop/envcat/releases/tag/v1.0.2) |
+| Linux        | aarch64 | 1.0.2 (latest)  | [Download](https://github.com/busyloop/envcat/releases/tag/v1.0.2) |
 
 #### Dockerfile
 
-See the [download page](https://github.com/busyloop/envcat/releases/tag/v1.0.1) for an example Dockerfile. :whale:
+See the [download page](https://github.com/busyloop/envcat/releases/tag/v1.0.2) for an example Dockerfile. :whale:
 
 
 ## Usage
@@ -261,3 +261,4 @@ export B=world
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create a new Pull Request
+

shard.yml

@@ -1,5 +1,5 @@
 name: envcat
-version: 1.0.1
+version: 1.0.2
 
 authors:
   - moe <[email protected]>

src/envcat/format/j2.cr

@@ -37,14 +37,16 @@ module Envcat
     def write(env)
       Crinja::Undefined.strict = @@strict
 
-      crinja = Crinja.new
+      crinja = Crinja.new(Crinja::Config.new(keep_trailing_newline: true))
 
       crinja.filters["split"] = Crinja.filter({on: nil}) { target.to_s.split(arguments["on"].to_s) }
       crinja.filters["b64encode"] = Crinja.filter { Base64.strict_encode(target.to_s) }
       crinja.filters["b64encode_urlsafe"] = Crinja.filter { Base64.urlsafe_encode(target.to_s) }
       crinja.filters["b64decode"] = Crinja.filter { Base64.decode_string(target.to_s) }
 
-      crinja.from_string(@io_in.gets_to_end).render(@io, env.as(Envcat::Env))
+      buf = IO::Memory.new(16384)
+      IO.copy(@io_in, buf)
+      crinja.from_string(buf.to_s).render(@io, env.as(Envcat::Env))
     end
   end
 end