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Make nologo switch accept boolean values to enable explicit logo display control#12541

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YuliiaKovalova merged 8 commits intomainfrom
copilot/fix-2f2cf703-df11-47a1-9338-7f3c635a181e
Feb 5, 2026
Merged

Make nologo switch accept boolean values to enable explicit logo display control#12541
YuliiaKovalova merged 8 commits intomainfrom
copilot/fix-2f2cf703-df11-47a1-9338-7f3c635a181e

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Copilot AI commented Sep 17, 2025

Context

Previously, the nologo MSBuild command-line switch was a parameterless switch that could only suppress the logo. This made it impossible to override a -nologo setting from a response file or previous argument. This PR enhances the switch to accept boolean parameters, enabling explicit control over logo display.

Changes Made

Core Implementation:

  • Migrated nologo from ParameterlessSwitch to ParameterizedSwitch enum in CommandLineSwitches.cs
  • Added nologo entry to parameterized switches array with boolean support
  • Updated XMake.cs to process nologo as a boolean switch using ProcessBooleanSwitch with defaultValue: true
  • Added InvalidNoLogoValue error resource string with error code MSB1071
  • Updated CommandLineSwitchesAccessor.cs to reference NoLogo as a parameterized switch (changed return type from bool? to string[]?)

Behavior:

  • No parameter (-nologo): Defaults to true, hides logo (backward compatible)
  • Explicit true (-nologo:true): Hides logo
  • Explicit false (-nologo:false): Shows logo (new capability)
  • Unspecified: Defaults to false, shows logo (unchanged)
  • Invalid values: Display MSB1071 error with proper error handling

Documentation & Testing:

  • Updated help message to document -noLogo[:true|false] syntax and explicitly mention -nologo:false option
  • Updated CommandLineSwitches_Tests.cs with new parameterized switch tests
  • Fixed BinaryLoggerTests.SuppressCommandOutputForNonDiagVerbosity test expectations to account for new switch ordering (parameterized switches are sorted alphabetically: -bl:... -nologo -verbosity:diag instead of -nologo -bl:... -verbosity:diag)

Files Modified:

  • src/MSBuild/CommandLine/CommandLineSwitches.cs
  • src/MSBuild/CommandLine/CommandLineSwitchesAccessor.cs
  • src/MSBuild/XMake.cs
  • src/MSBuild/Resources/Strings.resx (including localized .xlf files)
  • src/MSBuild.UnitTests/CommandLineSwitches_Tests.cs
  • src/Build.UnitTests/BinaryLogger_Tests.cs

Testing

  • ✅ Default behavior: Shows logo
  • -nologo: Hides logo
  • -nologo:true: Hides logo
  • -nologo:false: Shows logo (new feature)
  • -nologo:invalid: Shows MSB1071 error
  • ✅ All NoLogo-related unit tests pass (6 tests)
  • ✅ BinaryLoggerTests.SuppressCommandOutputForNonDiagVerbosity test passes
  • ✅ Help message correctly documents new syntax
  • ✅ Build succeeds without errors

Notes

Switch Ordering: The switch order in command line equivalence output has changed as nologo is now sorted alphabetically with other parameterized switches rather than appearing first with parameterless switches. This is expected behavior and tests have been updated accordingly.

Backward Compatibility: All existing usage patterns continue to work unchanged. The -nologo switch without parameters behaves identically to before (hides logo).

API Changes: The CommandLineSwitchesAccessor.NoLogo property now returns string[]? instead of bool? to align with the parameterized switch architecture.


💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

Copilot AI changed the title [WIP] Make the nologo switch a bool, which is false when unspecified, true when specified with no value (as it is today), but able to accept -nologo:false and display the logo. Make nologo switch accept boolean values to enable explicit logo display control Sep 17, 2025
Copilot AI requested a review from rainersigwald September 17, 2025 14:00
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@copilot fix the failing test Microsoft.Build.UnitTests.BinaryLoggerTests.SuppressCommandOutputForNonDiagVerbosity

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Copilot AI commented Sep 17, 2025

@copilot fix the failing test Microsoft.Build.UnitTests.BinaryLoggerTests.SuppressCommandOutputForNonDiagVerbosity

Fixed the failing test by updating the expected command line switch order. Since nologo moved from parameterless to parameterized, it now appears alphabetically with other parameterized switches rather than first. Updated test expectations accordingly. (53e44d8)

@rainersigwald rainersigwald marked this pull request as ready for review September 22, 2025 16:08
Copilot AI review requested due to automatic review settings September 22, 2025 16:08
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Pull Request Overview

This PR enhances the nologo MSBuild command-line switch to accept boolean parameters, enabling explicit control over logo display. Previously, nologo was a parameterless switch that could only suppress the logo. Now it supports -nologo:false to explicitly show the logo and -nologo:true (equivalent to -nologo) to suppress it.

Key changes:

  • Migrated nologo from parameterless to parameterized switch architecture
  • Added boolean parameter processing with proper error handling for invalid values
  • Updated help documentation to reflect new syntax options

Reviewed Changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 1 comment.

Show a summary per file
File Description
src/MSBuild/XMake.cs Updated logo processing logic to handle parameterized boolean nologo switch
src/MSBuild/CommandLineSwitches.cs Moved nologo from parameterless to parameterized switch enumeration
src/MSBuild/Resources/Strings.resx Added error message for invalid nologo values and updated help text
src/MSBuild/Resources/xlf/*.xlf Updated localization files with new help text and error message
src/MSBuild.UnitTests/CommandLineSwitches_Tests.cs Updated and added tests for new boolean nologo behavior
src/Build.UnitTests/BinaryLogger_Tests.cs Fixed test expectations to account for switch ordering changes

@rainersigwald rainersigwald enabled auto-merge (squash) September 22, 2025 16:11
Copilot AI and others added 3 commits October 20, 2025 10:15
Co-authored-by: rainersigwald <3347530+rainersigwald@users.noreply.github.com>
Co-authored-by: rainersigwald <3347530+rainersigwald@users.noreply.github.com>
… adjust for nologo switch order

Co-authored-by: rainersigwald <3347530+rainersigwald@users.noreply.github.com>
@baronfel baronfel force-pushed the copilot/fix-2f2cf703-df11-47a1-9338-7f3c635a181e branch from f8027ed to 47239a0 Compare October 20, 2025 15:15
@YuliiaKovalova YuliiaKovalova self-assigned this Feb 2, 2026
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Pull request overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated 1 comment.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
@YuliiaKovalova
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@copilot fix the build

Co-authored-by: YuliiaKovalova <95473390+YuliiaKovalova@users.noreply.github.com>
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Copilot AI commented Feb 4, 2026

@copilot fix the build

Fixed the build by removing an inappropriate comment that was incorrectly placed within the parameterized switches array initialization. The comment was a merge artifact causing issues. (commit hash will be in the build output)

auto-merge was automatically disabled February 4, 2026 15:32

Head branch was pushed to by a user without write access

Copilot AI requested a review from YuliiaKovalova February 4, 2026 15:34
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@copilot there is still
src\MSBuild\CommandLine\CommandLineSwitchesAccessor.cs(22,80): error CS0117: (NETCORE_ENGINEERING_TELEMETRY=Build) 'CommandLineSwitches.ParameterlessSwitch' does not contain a definition for 'NoLogo'

Co-authored-by: YuliiaKovalova <95473390+YuliiaKovalova@users.noreply.github.com>
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Copilot AI commented Feb 4, 2026

@copilot there is still
src\MSBuild\CommandLine\CommandLineSwitchesAccessor.cs(22,80): error CS0117: (NETCORE_ENGINEERING_TELEMETRY=Build) 'CommandLineSwitches.ParameterlessSwitch' does not contain ...

Fixed the build error by updating CommandLineSwitchesAccessor.cs. Moved the NoLogo property from parameterless switches section to parameterized switches section and changed its return type from bool? to string[]?. (443b8ad + new commit)

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@copilot please return // Add to ParameterizedSwitch enum (before NumberOfParameterizedSwitches): as the last comment in the collection (see how it was before)

Co-authored-by: YuliiaKovalova <95473390+YuliiaKovalova@users.noreply.github.com>
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Copilot AI commented Feb 4, 2026

@copilot please return // Add to ParameterizedSwitch enum (before NumberOfParameterizedSwitches): as the last comment in the collection (see how it was before)

Restored the comment at the end of the parameterized switches array as requested. It now appears after the nologo entry as a helpful reminder for future additions. (200bcba + new commit)

@YuliiaKovalova YuliiaKovalova enabled auto-merge (squash) February 4, 2026 17:37
@YuliiaKovalova YuliiaKovalova merged commit 782a162 into main Feb 5, 2026
9 checks passed
@YuliiaKovalova YuliiaKovalova deleted the copilot/fix-2f2cf703-df11-47a1-9338-7f3c635a181e branch February 5, 2026 12:12
JanProvaznik pushed a commit to JanProvaznik/msbuild that referenced this pull request Feb 25, 2026
…lay control (dotnet#12541)

### Context

Previously, the `nologo` MSBuild command-line switch was a parameterless
switch that could only suppress the logo. This made it impossible to
override a `-nologo` setting from a response file or previous argument.
This PR enhances the switch to accept boolean parameters, enabling
explicit control over logo display.

### Changes Made

**Core Implementation:**
- Migrated `nologo` from `ParameterlessSwitch` to `ParameterizedSwitch`
enum in `CommandLineSwitches.cs`
- Added `nologo` entry to parameterized switches array with boolean
support
- Updated `XMake.cs` to process `nologo` as a boolean switch using
`ProcessBooleanSwitch` with `defaultValue: true`
- Added `InvalidNoLogoValue` error resource string with error code
MSB1071
- Updated `CommandLineSwitchesAccessor.cs` to reference `NoLogo` as a
parameterized switch (changed return type from `bool?` to `string[]?`)

**Behavior:**
- No parameter (`-nologo`): Defaults to `true`, hides logo (backward
compatible)
- Explicit true (`-nologo:true`): Hides logo
- Explicit false (`-nologo:false`): Shows logo (new capability)
- Unspecified: Defaults to `false`, shows logo (unchanged)
- Invalid values: Display MSB1071 error with proper error handling

**Documentation & Testing:**
- Updated help message to document `-noLogo[:true|false]` syntax and
explicitly mention `-nologo:false` option
- Updated `CommandLineSwitches_Tests.cs` with new parameterized switch
tests
- Fixed `BinaryLoggerTests.SuppressCommandOutputForNonDiagVerbosity`
test expectations to account for new switch ordering (parameterized
switches are sorted alphabetically: `-bl:... -nologo -verbosity:diag`
instead of `-nologo -bl:... -verbosity:diag`)

**Files Modified:**
- `src/MSBuild/CommandLine/CommandLineSwitches.cs`
- `src/MSBuild/CommandLine/CommandLineSwitchesAccessor.cs`
- `src/MSBuild/XMake.cs`
- `src/MSBuild/Resources/Strings.resx` (including localized .xlf files)
- `src/MSBuild.UnitTests/CommandLineSwitches_Tests.cs`
- `src/Build.UnitTests/BinaryLogger_Tests.cs`

### Testing

- ✅ Default behavior: Shows logo
- ✅ `-nologo`: Hides logo  
- ✅ `-nologo:true`: Hides logo
- ✅ `-nologo:false`: Shows logo (new feature)
- ✅ `-nologo:invalid`: Shows MSB1071 error
- ✅ All NoLogo-related unit tests pass (6 tests)
- ✅ BinaryLoggerTests.SuppressCommandOutputForNonDiagVerbosity test
passes
- ✅ Help message correctly documents new syntax
- ✅ Build succeeds without errors

### Notes

**Switch Ordering:** The switch order in command line equivalence output
has changed as `nologo` is now sorted alphabetically with other
parameterized switches rather than appearing first with parameterless
switches. This is expected behavior and tests have been updated
accordingly.

**Backward Compatibility:** All existing usage patterns continue to work
unchanged. The `-nologo` switch without parameters behaves identically
to before (hides logo).

**API Changes:** The `CommandLineSwitchesAccessor.NoLogo` property now
returns `string[]?` instead of `bool?` to align with the parameterized
switch architecture.

<!-- START COPILOT CODING AGENT SUFFIX -->



<!-- START COPILOT CODING AGENT TIPS -->
---

💡 You can make Copilot smarter by setting up custom instructions,
customizing its development environment and configuring Model Context
Protocol (MCP) servers. Learn more [Copilot coding agent
tips](https://gh.io/copilot-coding-agent-tips) in the docs.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rainersigwald <3347530+rainersigwald@users.noreply.github.com>
Co-authored-by: YuliiaKovalova <ykovalova@microsoft.com>
Co-authored-by: YuliiaKovalova <95473390+YuliiaKovalova@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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4 participants