Class: Mnenv::Snap::Fetcher

Inherits:
Fetcher
  • Object
show all
Defined in:
lib/mnenv/snap/fetcher.rb

Overview

Fetches Snap versions from Snapcraft API and merges with historical YAML data. The YAML file (data/snap/versions.yaml) is the single source of truth. Fetcher loads existing YAML, merges with API data, saves back to YAML. Snap cannot support “revamp” as it would lose historical data.

Constant Summary collapse

SNAP_NAME = 
'metanorma'
SNAP_ID = 
'QkvhpBkFKaDwHMR2LTS3S9Bm0Ek6io11'
METADATA_API_URL = 
'https://api.snapcraft.io/api/v1/snaps/metadata'
CHANNELS = 
%w[stable candidate beta edge].freeze
ARCHITECTURES = 
%w[amd64 arm64].freeze

Instance Attribute Summary

Attributes inherited from Fetcher

#repository

Instance Method Summary collapse

Methods inherited from Fetcher

#fetch_and_save, #initialize

Constructor Details

This class inherits a constructor from Mnenv::Fetcher

Instance Method Details

#fetch_all ⇒ Object 



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# File 'lib/mnenv/snap/fetcher.rb', line 29

def fetch_all
  fetch_all_from_snapcraft
end

#fetch_all_from_cache ⇒ Object 



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# File 'lib/mnenv/snap/fetcher.rb', line 33

def fetch_all_from_cache
  # Load existing versions from YAML
  version_map = repository.all

  # Fetch current heads from snap_metadata API
  current_versions = fetch_current_heads

  current_versions.each_key do |k|
    next if repository.exists?(k)

    # Add new version
    version_map << SnapVersion.new(
      version: k,
      parsed_at: DateTime.now,
      channels: current_versions[k].map do |cv|
        SnapChannel.new(
          name: cv.fetch('channel'),
          revision: cv.fetch('revision'),
          arch: cv.fetch('arch')
        )
      end
    )
  end

  version_map
end

#fetch_all_from_snapcraft ⇒ Object

Raises:



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# File 'lib/mnenv/snap/fetcher.rb', line 60

def fetch_all_from_snapcraft
  raise MissingCredentialsError unless ENV['SNAPCRAFT_STORE_CREDENTIALS']
  raise SnapcraftNotAvailableError unless snapcraft_available?

   = system('echo "$SNAPCRAFT_STORE_CREDENTIALS" | snapcraft login --with -')

  raise LoginFailedError unless 

  # delete the environment variable immediately to prevent
  # duplicate login error
  ENV.delete('SNAPCRAFT_STORE_CREDENTIALS')

  result = `snapcraft revisions metanorma`
  snap_revisions = parse_snap_revisions(result)
  build_snap_version_map(snap_revisions)
end