Minimum VSCode Version for `vscode-r` v2.0.0

I am installing vscode-r from openvsx in a centralized installation which currently makes use of code-server v 3.10.2 which again ships vscode 1.56.1.

While vscode-R v1.6.8 can be installed, I get an error for v2.0.0. Do you know what the minimum vscode version required is for v2.0.0?

This is mainly for me knowing how long I need to pin the old version to prevent the installation failures.

VSCODE_R_VERSION=1.6.8
curl -sL https://open-vsx.org/api/Ikuyadeu/r/${VSCODE_R_VERSION}/file/Ikuyadeu.r-${VSCODE_R_VERSION}.vsix -o Ikuyadeu.r-${VSCODE_R_VERSION}.vsix && /usr/bin/code-server --extensions-dir /usr/lib/code-server/lib/vscode/extensions --install-extension Ikuyadeu.r-${VSCODE_R_VERSION}.vsix && rm Ikuyadeu.r-${VSCODE_R_VERSION}.vsix
Installing extensions...
Extension 'Ikuyadeu.r-1.6.6.vsix' was successfully installed.

VSCODE_R_VERSION=2.0.0
curl -sL https://open-vsx.org/api/Ikuyadeu/r/${VSCODE_R_VERSION}/file/Ikuyadeu.r-${VSCODE_R_VERSION}.vsix -o Ikuyadeu.r-${VSCODE_R_VERSION}.vsix   && /usr/bin/code-server --extensions-dir /usr/lib/code-server/lib/vscode/extensions --install-extension Ikuyadeu.r-${VSCODE_R_VERSION}.vsix   && rm Ikuyadeu.r-${VSCODE_R_VERSION}.vsix
Installing extensions...
Unable to install extension 'ikuyadeu.r' as it is not compatible with VS Code '1.56.1'.
[2021-07-13T15:59:50.187Z] error vscode Failed Installing Extensions: file:///Ikuyadeu.r-2.0.0.vsix
[2021-07-13T15:59:50.188Z] error vscode Error: Failed Installing Extensions: file:///Ikuyadeu.r-2.0.0.vsix
    at O.installExtensions (/usr/lib/code-server/lib/vscode/out/vs/server/entry.js:19:42)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async /usr/lib/code-server/lib/vscode/out/vs/server/entry.js:36:90861
    at async M (/usr/lib/code-server/lib/vscode/out/vs/server/entry.js:36:94206)
    at async process.<anonymous> (/usr/lib/code-server/lib/vscode/out/vs/server/entry.js:36:103823)

[ManuelHentschel]

Here we require a minimum version 1.57.0. I’m not sure how we determined this, but do we really need it? Or should we set it to the earliest version we really rely on? @Ikuyadeu @ManuelHentschel

Here is another place we rely on 1.57.0, and indirectly anywhere in the code, where we use functions that are present for v1.57 but not the older ones.

Also, sometimes the contributions declared in package.json depend on a certain version of vscode. E.g. the "editor/title/run" menu was introduced somewhat recently and produces a warning in older versions of vscode.

With this in mind, we should probably bump the vscode version only if we actually implement a feature or use an API that is not present in older vscode versions. After all it’s a minimum version, not a “recommended version”.

[renkun-ken]

Does it make more sense to set to the previous 3 or 4 version as the minimum version in each release? Some user might not be timely upgrading to the latest release due to many causes, e.g. in a corporate environment where installation of external software is controlled, having some blocking issues introduced in the newer releases. I think these users perfectly deserve to use the latest vscode-R which does not really have a hard dependency on the most recent releases.