Basic runtime template implementation

This commit is contained in:
Roberto Alsina 2024-07-05 10:23:46 -03:00
parent 6eb9c49c22
commit 42f43db2b1
6 changed files with 82 additions and 1 deletions

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# README
This is the readme for people trying to *use* this runtime.

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# README
This is the readme for people wanting to change this runtime,
not for people trying to use it

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# Readme for {{name | title}}
This is a funko using the Crystal runtime for [FaaSO](https://git.ralsina.me/ralsina/faaso)
## What is {{name | title}}
Write here what it is
## How to use {{name | title}}
And so on.

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require "kemal"
# This is a kemal app, you can add handlers, middleware, etc.
# A basic hello world get endpoint
get "/" do
"Hello World Crystal!"
end
# The `/ping/` endpoint is configured in the container as a healthcheck
# You can make it better by checking that your database is responding
# or whatever checks you think are important
#
get "/ping/" do
"OK"
end

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name: hello
runtime: crystal

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return 0
end
# Create folder with a preconfigured funko for this runtime
# Get runtime template files list
template_base = ""
template_files = [] of String
if @@known.includes? "./runtimes/#{runtime}"
Log.info { "Using known runtime #{runtime}" }
template_base = "./runtimes/#{runtime}/template"
template_files = @@filelist.select { |f| f.starts_with? template_base }
elsif File.exists? runtime
Log.info { "Using directory #{runtime} as runtime" }
template_base = "#{runtime}/template"
template_files = Dir.glob("#{template_base}/**/*")
else
Log.error { "Can't find runtime #{runtime}" }
return 1
end
pp! template_files
# Create new folder
if Dir.exists? folder
Log.error { "Folder #{folder} already exists" }
return 1
end
Dir.mkdir_p folder
template_files.each do |f|
content = IO::Memory.new
# We need to use RUCKSACK_MODE=0 so it
# fallbacks to the filesystem
rucksack(f).read(content)
if content.nil?
Log.error { "Can't find file #{f}" }
return 1
end
# f is like "#{template_base}/foo"
# dst is like #{folder}/foo
dst = Path[folder] / Path[f].relative_to(template_base)
# Render templated files
if f.ends_with? ".j2"
dst = dst.sibling(dst.stem)
Log.info { "Creating file #{dst} from #{f}" }
File.open(dst, "w") do |file|
file << Crinja.render(content.to_s, {"name" => Path[folder].basename})
end
else # Just copy the file
Log.info { "Creating file #{dst} from #{f}" }
File.open(dst, "w") do |file|
file << content.to_s
end
end
end
0
end
end