[bug-bash] edit and theme failures silently return exit 1 without a machine-readable stderr error

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@mkrueger ci sta già lavorando.

Dal 4/11/2026.

  • #287 di @mkrueger — aperta

Valutazione

Difficoltà
3/5
Tempo stimato
1-2 giorni
Idoneità per principianti
62/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
csharp
Ambito
cli

Direzione di ricerca

Start by tracing how command failures reach stderr and how --output json, --quiet, and -c affect error handling; compare the failing theme use, theme validate, and edit commands with the working not-a-real-command case. Run the PowerShell reproductions in the issue and capture stdout, stderr, and exit codes. Done when these failures emit explanatory structured JSON to stderr while retaining a nonzero exit code.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

bug bug-bash

Environment

Windows x64, CosmosDBShell 1.1.291-preview (db49321323).
No Cosmos DB connection or credentials are required.

Repro (PowerShell)

$package = "$env:USERPROFILE\.dotnet\tools\.store\cosmosdbshell\1.1.291-preview"
$shell = Join-Path $package 'cosmosdbshell.win-x64\1.1.291-preview\tools\net10.0\win-x64\CosmosDBShell.exe'
& $shell --version
$work = Join-Path ([IO.Path]::GetTempPath()) ("cosmos-errors-" + [guid]::NewGuid().ToString("N"))
New-Item -ItemType Directory -Path $work | Out-Null
Set-Location $work
& $shell --output json -c 'theme use missing-bug-bash-theme'
"Exit code: $LASTEXITCODE"

Actual:

  • Exit code: 1
  • stdout: empty
  • stderr: empty

The same silent failure reproduces with:

& $shell --output json -c 'theme validate .\missing-theme.toml'

Exact headless edit reproduction, including input redirection and output capture:

'bug-bash sample' | Set-Content -Encoding utf8 .\sample.txt
'' | & $shell --output json -c 'edit sample.txt' 1> .\edit.stdout.txt 2> .\edit.stderr.txt
$editExit = $LASTEXITCODE
[pscustomobject]@{
    ExitCode = $editExit
    StdoutBytes = (Get-Item .\edit.stdout.txt).Length
    StderrBytes = (Get-Item .\edit.stderr.txt).Length
}

Actual: ExitCode 1, StdoutBytes 0, StderrBytes 0. Interactive external editing
should be rejected with an explanation in this context, not fail silently.
The same edit result was also observed with --quiet and default -c mode.

Expected

Failures in machine mode emit an explanatory structured JSON error object to
stderr, consistent with the documented automation contract and other commands.
The existing exit code can remain nonzero.

For example:

{"status":"error","error":"Unknown theme ..."}

Working control

& $shell --output json -c 'not-a-real-command'

This correctly returns exit code 2 and a structured stderr error:

{"status":"error","error":"'not-a-real-command' is not recognized ..."}

cat with a missing file, filter with a missing expression, and invalid ftab
formats also emit structured diagnostics; the silence is not a harness-wide
capture problem.

Impact

Automation can detect failure but cannot explain it, surface remediation, or
collect useful bug reports. Empty stderr also makes rejected interactive editing
indistinguishable from an unexplained internal failure.

Validation

Reproduced with direct child-process execution, captured stdout and stderr,
and closed/redirected stdin. The edit failure reproduces with --output json,
--quiet, and default -c machine mode. Both invalid theme operations reproduce
without a database connection.

Lingua principale
C#
Stelle
4
Fork
7
Merge medio
1g 23h
PR unite (30g)
23

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Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

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