akkartik/template-live - Change LKUW6TVDJD66K2QFWWJF3URDGCNYAZ5VIGKIC6EMRDRX5ARICA2QC

make roll_forward and roll_back more symmetric

They now bring app.Manifest and app.Head in sync, and persist the state changes as well. roll_forward writes the Manifest to accomplish this, while roll_back reads the Manifest from disk.

In both cases the caller is responsible for making the actual code changes to app.Manifest and writing it out to disk. The methods only deal with the manifest file itself.

Still clear as mud, but hopefully slightly better.

Created by Kartik K. Agaram on April 9, 2023

LKUW6TVDJD66K2QFWWJF3URDGCNYAZ5VIGKIC6EMRDRX5ARICA2QC

Dependencies

In channels

main

Change contents

Deletion in main.lua at line 241 [3.4]

B:BD[3.6269] → [4.63:99]

∅:D[4.99] → [3.6304:6447]

B:BD[3.6304] → [3.6304:6447]

    app.Manifest[PARENT] = app.Head
    local manifest_filename = app.versioned_manifest(app.Next_version)
    love.filesystem.write(manifest_filename, json.encode(app.Manifest))

Deletion in main.lua at line 266 [3.4]

B:BD[3.6954] → [4.100:136]

∅:D[4.136] → [3.6989:7132]

B:BD[3.6989] → [3.6989:7132]

    app.Manifest[PARENT] = app.Head
    local manifest_filename = app.versioned_manifest(app.Next_version)
    love.filesystem.write(manifest_filename, json.encode(app.Manifest))

Insertion in main.lua at line 278 [3.4]

[5.32]

[6.52]

-- update app.Head and record the new app.Manifest (which caller has already modified)

Insertion in main.lua at line 280 [3.4]

[6.80]

[2.4]

  app.Manifest[PARENT] = app.Head
  local manifest_filename = app.versioned_manifest(app.Next_version)
  love.filesystem.write(manifest_filename, json.encode(app.Manifest))

Insertion in main.lua at line 288 [3.4]

[6.163]

[5.32]

-- update app.Head and reload app.Manifest appropriately