compile command fails when sketch on different drive from custom build path

[per1234]

Describe the problem

Under the following conditions:

• A custom build path is set via the --build-path flag.
• The build path is on a different drive from the sketch.

compilation fails:

Error during build: Cannot find build path: Rel: can't make C:\Users\per\AppData\Local\Temp\build-path relative to E:\FooSketch

To reproduce

$ arduino-cli version
arduino-cli.exe  Version: git-snapshot Commit: 2c2a5cc6 Date: 2023-04-24T05:04:04Z

$ arduino-cli sketch new "e:/FooSketch"
Sketch created in: e:\FooSketch

$ arduino-cli compile --build-path "c:/Users/per/AppData/Local/Temp/build-path" --fqbn arduino:avr:uno "e:/FooSketch"
Error during build: Cannot find build path: Rel: can't make c:\Users\per\AppData\Local\Temp\build-path relative to E:\FooSketch

Expected behavior

Compilation is possible when custom build path is on a different drive from sketch.

Arduino CLI version

2c2a5cc

Operating system

Windows

Operating system version

11

Additional context

I bisected the regression to 78bfa74

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I was not able to reproduce the fault on Linux or macOS

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The fault does not occur when --build-path is not used in the command even when that command uses a default build path on a different drive from the sketch.

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The fault also occurs when using the gRPC interface.

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Although the use of --build-path in command line commands is probably not so common, custom build paths are used for the compile operations ran by Arduino IDE 2.x to generate the compilation database for Arduino Language Server, which makes the regression more impactful.

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Originally reported at: https://forum.arduino.cc/t/data-item-properties-in-ide-2-1/1118282

Additional reports

• https://forum.arduino.cc/t/data-item-properties-in-ide-2-1/1118282/9
• https://forum.pjrc.com/threads/72643-Issues-with-Arduino-IDE-2-1-and-Teensy-4-1#post_324742
• https://forum.arduino.cc/t/code-hints-missing/1119231
• https://forum.arduino.cc/t/upgrading-2-0-3-to-2-1-0-function-f12-and-alt-f12-not-present-on-menu/1118731
• https://forum.arduino.cc/t/f12-qui-ne-fonctionne-pas/1119169/1
• https://forum.arduino.cc/t/f12-qui-ne-fonctionne-pas/1119169/6
• https://forum.arduino.cc/t/code-hints-missing/1119231/4
• Arduino IDE 2.10: No "Go to definition" in context menu arduino-ide#2034
• https://forum.arduino.cc/t/auto-completion-not-working-on-arduino-2-1/1120524
• https://forum.arduino.cc/t/hover-tips-context-help-depend-on-sketch-location/1124524

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the nightly build
• My report contains all necessary details

[jgardona]

It happens yet. Autocomplete die at random usage. For me, on linux is happening this issue.