eclipse-theia/theia

can't debug current python file which is opened in preview mode

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#6,911 opened on Jan 19, 2020

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 (3 comments) (0 reactions) (0 assignees)TypeScript (2,478 forks)batch import
bugeditor-previewhelp wantedvariable-resolver

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Description

Description

After opening a python file in preview mode(single-clicked) and click start debugging or press F5, then a notification of File does not exist. "${file}" showed in the bottom right corner.

image

Reproduction Steps

1 download python extension(https://marketplace.visualstudio.com/items?itemName=ms-python.python) 2 build theia browser example 3 setup workspace

cat << 'EOF' > test.py

if __name__ == "__main__":
    print("Hello World!")
EOF
mkdir .theia
cat << 'EOF' > .theia/launch.json
{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python: Current File",
            "type": "python",
            "request": "launch",
            "program": "${file}",
            "console": "integratedTerminal"
        }
    ]
}
EOF

3 single click test.py and press F5

OS and Theia version: OS: centos 7 theia: https://github.com/eclipse-theia/theia/commit/6f1651655d879a2a00a30d6aa46eeb86f7834b13 Diagnostics:

Contributor guide

Research direction
Inspect the code that resolves the ${file} variable in debug configurations. The bug is that when a file is opened in preview mode (single click), the file path is not properly set. Trace the debug session initialization to see where the file path is obtained and whether preview mode files are handled differently.
Tech stack
typescript
Domain
devtools
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitTypeScriptTheia development setup
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75