Remote Provider Cache

[robcxyz]

Remote Provider Cache

Create a cache for remote providers to minimize network calls to git on ever provider import

• Proposal Status: wip

• Issue Number: 255

• Proposal Doc: remote-providers-cache.md

Overview

Cache Path

• org

• repo

• version

  • base

• file / path?

  • checksum: str

  • hooks: list

Imports + Change Detection

Local

• import (current)

• checksums

• pyc

  • would need to compile

• using cache

  • release cache

  • located in providers dir

    • irrespective of native vs remote

  • based on version of tackle

  • this would allow version controlling native providers

  • provider locals

  • file in each provider that can freeze versions

  • to create

    • run command

    • tackle <target> --freeze -> looks up version from remote and pins to that

    • runs a special parser that does not run any hook except tackle / import hooks and catalogues each provider

    • can be run with additional options to pin back to the previous release

  • if file exists

    • assert that all the providers exist in path

    • store object in providers either as lazy

Remote

• latest

  • pulls

• version

  • pinned

Current

• latest defaults to true

• If version is not given then need to

  • Check if there are any versioned releases on each get

  • If there are, then use that one

  • If not get the default branch and use that

Sequence

• read cache

  • if it doesn't exist

  • build it (easy+long) / copy it (hard+fast+needs build step)

• read checksum of providers from cache

  • checksums take almost as long as

• compare with native checksum

Cache Schema

For providers:

.tackle.lock.yaml

tackle_version: v0.6.0  # From tackle

providers:

  - type: native

    version: v0.6.0  # When different from above, not changed

  - name: a-remote-provider

    path: org/repo

    version: v1.0

    hooks:

  - name: a-local-provider

    type: local

    path: /home/path/...

Logic:

• If type and type == 'native'

  • path = providers_dir / tackle-{{version}}

  • for i in path (iter over providers)

.tackle.lock.yaml

tackle_version: v0.6.0  # From tackle

provider_dir:

providers:

  - name: collections

    path: tackle/v0.6.0/collections

  - name: console

    path: tackle/v0.6.0/console