Switch from the sketchy shell script nonsense to the builtin pixi way of doing things

environments/analysis3/pixi.toml

@@ -20,9 +20,7 @@ analysis3 = ["default"]
 
 [tasks]
 ensure-locked = { cmd = "pixi lock --check", description = "Ensure the lockfile is up to date" }
-export-json = { cmd = "pixi list --json > solved.json", description = "Export the solved environment to JSON format" , depends-on = ["ensure-locked"] }
-create-backup-env = {cmd = "mv environment.yml environment.yml.bak", description = "Create a backup of the current environment.yml file", depends-on = ["export-json"] }
-rebuild-env = { cmd = "bash recreate-env-yml.sh", description = "Rebuild environment.yml from solved.json", depends-on = ["create-backup-env"] }
+rebuild-env = { cmd = "pixi workspace export conda-environment --from-lock-file", description = "Rebuild environment.yml from lock file", depends-on = ["ensure-locked"] }
 check-broken-packages = { cmd = "python3 check_broken_packages.py", description = "Check that broken-labelled packages in pixi.lock match pixi.toml declarations" }
 
 [dependencies]