🚀 [Feature]: Install only the Nerd Font variants you need with faster reruns by MariusStorhaug · Pull Request #77 · PSModule/NerdFonts

Marius Storhaug (MariusStorhaug) · 2026-05-17T10:51:02Z

Install-NerdFont can now install only the Nerd Font variants you want, reuse cached archives between runs, and skip work for fonts that are already present in the requested scope. Multi-font installs also finish faster because archive downloads are batched and extraction uses the underlying .NET zip APIs directly.

New: Install only the variants you need

Use -Variant to limit each archive to the families you actually want to register. This is useful for terminal-focused setups where only the monospace family is needed.

Install-NerdFont -Name 'FiraCode' -Variant Mono
Install-NerdFont -All -Variant Mono

All remains the default, so existing scripts keep the current behavior unless they opt into Standard, Mono, or Propo.

Changed: Repeated installs reuse prior work

When a font is already installed in the requested scope and -Force is not used, Install-NerdFont now skips the download, extraction, and install phases for that font. Downloaded archives are cached per Nerd Fonts release, so retries and overlapping reruns can reuse the same zip instead of fetching it again.

Install-NerdFont -Name 'Hack'
Install-NerdFont -Name 'Hack' # skips when already installed
Install-NerdFont -Name 'Hack' -Force # re-downloads and reinstalls

Changed: Multi-font installs complete faster

Bulk installs now resolve the target font set once, avoid duplicate work from overlapping name patterns, download archives in bounded batches, and extract them with System.IO.Compression.ZipFile. The end result is less waiting during -All and other multi-font runs without changing the default install surface.

Technical Details

Install-NerdFont now deduplicates the resolved font list, skips already-installed fonts without -Force, caches archives under the user cache directory, downloads uncached archives through System.Net.Http.HttpClient, extracts with System.IO.Compression.ZipFile, and filters extracted files by -Variant before calling Install-Font.
tests/NerdFonts.Tests.ps1 adds coverage for -Variant Mono installs.
scripts/Measure-InstallPerformance.ps1 adds repeatable performance scenarios for single-font, subset, rerun, and optional -All measurements.
README.md now documents variant installs, skip-on-rerun behavior, and cache bypass with -Force.
Implementation plan progress: the work tracked by Skip download and extraction when a font is already installed and -Force is not set #70 through Add -Variant filter to install only the desired font variants from each archive #76 is completed in this PR.

Closes #71. The progress bar adds per-byte rendering overhead that is especially expensive in non-interactive hosts. \Continue is saved and restored so the user's session is unaffected.

Copilot

Pull request overview

This PR currently implements a small Install-NerdFont download optimization by suppressing Invoke-WebRequest progress rendering, and adds a script for measuring install performance scenarios.

Changes:

Suppresses PowerShell progress output during font archive downloads while restoring the previous preference afterward.
Adds a performance measurement script for single-font, subset, already-installed, and optional full install scenarios.
Ignores generated performance JSONL results.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
`src/functions/public/Install-NerdFont.ps1`	Wraps the download call with temporary progress suppression.
`scripts/Measure-InstallPerformance.ps1`	Adds a benchmark helper for repeatable install timing scenarios.
`.gitignore`	Excludes generated performance result output.

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github-actions · 2026-05-17T10:53:32Z

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MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Fail ❌
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
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                                                                  because it mi
                                                                  ght not work
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                                                                  nd (prior to
                                                                  PS 5.0) canno
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github-actions · 2026-05-17T10:58:25Z

✅ New prerelease: PowerShell Gallery - NerdFonts 1.0.33-perfinstallimprovements001

github-actions · 2026-05-17T10:58:27Z

✅ New prerelease: GitHub - NerdFonts v1.0.33-perfinstallimprovements001

Closes #74. Replaces `+=` array accumulation with a generic List and deduplicates overlapping wildcards via an OrdinalIgnoreCase HashSet, so each font is downloaded, extracted, and installed at most once per invocation. Install loop moves to `end` so pipeline input is fully resolved before any I/O. Also suppresses Write-Host / unused-parameter analyzer warnings in the perf measurement script.

github-actions · 2026-05-17T11:02:59Z

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JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Fail ❌
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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github-actions · 2026-05-17T11:07:41Z

✅ New prerelease: PowerShell Gallery - NerdFonts 1.0.33-perfinstallimprovements002

github-actions · 2026-05-17T11:07:43Z

✅ New prerelease: GitHub - NerdFonts v1.0.33-perfinstallimprovements002

Builds a HashSet of installed family names once per invocation. When -Force is not set, each font is checked against the set and skipped end-to-end (no download, no extract, no Install-Font call) if at least one installed family matches its base name. Wildcard match handles the multi-family layout of Nerd Fonts archives (e.g. 'Hack Nerd Font', 'Hack Nerd Font Mono'). Also restructure perf script call sites to splat (fixes PSUseConsistentIndentation).

github-actions · 2026-05-17T11:12:15Z

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Language	Validation result
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GITHUB_ACTIONS	Pass ✅
GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Fail ❌
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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Copilot

Pull request overview

Copilot reviewed 2 out of 3 changed files in this pull request and generated 3 comments.

Previous HashSet[string] constructor crashed with ArgumentNullException on a fresh runner where Get-Font returns no items. Coerce to a real string[] (empty when no fonts) before passing to the ctor.

github-actions · 2026-05-17T11:17:36Z

Super-linter summary

Language	Validation result
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GITHUB_ACTIONS	Pass ✅
GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Fail ❌
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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github-actions · 2026-05-17T11:21:56Z

✅ New prerelease: PowerShell Gallery - NerdFonts 1.0.33-perfinstallimprovements003

github-actions · 2026-05-17T11:21:57Z

✅ New prerelease: GitHub - NerdFonts v1.0.33-perfinstallimprovements003

Replace Expand-Archive (which scans every entry through PowerShell and materializes file objects) with the direct .NET ZipFile.ExtractToDirectory call. Same behavior, much lower per-archive overhead.

github-actions · 2026-05-17T11:25:49Z

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GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Fail ❌
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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Copilot

Pull request overview

Copilot reviewed 2 out of 3 changed files in this pull request and generated 3 comments.

github-actions · 2026-05-17T11:30:36Z

✅ New prerelease: PowerShell Gallery - NerdFonts 1.0.33-perfinstallimprovements004

github-actions · 2026-05-17T11:30:37Z

✅ New prerelease: GitHub - NerdFonts v1.0.33-perfinstallimprovements004

github-actions · 2026-05-18T18:57:15Z

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Language	Validation result
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GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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Copilot

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Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

…isolate test cache artifacts - Installed-font skip now matches 'Ubuntu Nerd Font*' instead of 'Ubuntu*' so Ubuntu no longer false-matches UbuntuMono (thread #37) - Download throttle fixed at 8 instead of ProcessorCount to keep network usage bounded on high-core CI hosts (thread #36) - Deduplication test uses a test-only cache tag and cleans up the full directory so no artifacts persist in user cache (thread #38)

github-actions · 2026-05-18T23:26:45Z

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CHECKOV	Pass ✅
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GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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Copilot

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

- Cache-hit copy is now best-effort: failures fall back to download instead of proceeding with a missing/incomplete temp archive (thread r3262766745) - Cache population uses atomic temp-file + move pattern so concurrent readers never see partially-written archives (thread r3262766732) - Variant tests now assert the correct font families are present (Mono includes *Mono* fonts; Standard includes non-Mono/non-Propo fonts) rather than the overly broad 'Hack*' pattern (thread r3262766715)

Exercises the new best-effort cache-hit path: places a directory at the cached file location to force Copy-Item failure, verifies the function falls back to a fresh download and completes the install successfully.

github-actions · 2026-05-18T23:51:04Z

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Language	Validation result
CHECKOV	Pass ✅
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GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Copilot

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

…che fallback cross-platform Variant tests (Mono/Standard): Convert from integration tests that depend on Get-Font finding recently installed fonts (unreliable on CI runners) to unit tests that mock Install-Font and verify the extracted font files directly. This gives stronger assertions (each file checked against variant pattern) while removing the dependency on Install-Font -Force behavior. Cache fallback test: Replace directory-as-file fixture (which does not fail Copy-Item reliably on Windows) with Mock Copy-Item + ParameterFilter. Also backup/restore any existing real cache entry so test runs never mutate user or CI state.

github-actions · 2026-05-19T13:26:02Z

Super-linter summary

Language	Validation result
CHECKOV	Pass ✅
GITHUB_ACTIONS	Pass ✅
GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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Copilot

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

…erf script uninstall prefix match

github-actions · 2026-05-19T13:59:43Z

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GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
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Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

tests/NerdFonts.Tests.ps1:245

This fixture also creates directories under the real user cache path when the cache root/tag path does not already exist. Although the test removes the test tag directory later, it can still leave newly-created parent cache directories behind; track and clean up directories the test creates or make the cache root injectable so the archive lives under $TestDrive.

                if (-not (Test-Path -LiteralPath $cacheTagDir)) {
                    $null = New-Item -ItemType Directory -Path $cacheTagDir -Force

…artifacts

github-actions · 2026-05-19T14:34:45Z

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GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSON	Pass ✅
MARKDOWN	Pass ✅
NATURAL_LANGUAGE	Pass ✅
POWERSHELL	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅

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Marius Storhaug (MariusStorhaug) added 2 commits May 17, 2026 12:50

perf: add Install-NerdFont performance measurement script

4f46dd1

perf: suppress Invoke-WebRequest progress bar during font downloads

e63bfc1

Closes #71. The progress bar adds per-byte rendering overhead that is especially expensive in non-interactive hosts. \Continue is saved and restored so the user's session is unaffected.

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Comment thread src/functions/public/Install-NerdFont.ps1

Comment thread src/functions/public/Install-NerdFont.ps1 Outdated

Comment thread src/functions/public/Install-NerdFont.ps1

fix: handle empty Get-Font result in skip-installed check

414f423

Previous HashSet[string] constructor crashed with ArgumentNullException on a fresh runner where Get-Font returns no items. Coerce to a real string[] (empty when no fonts) before passing to the ctor.

perf: extract font archives via ZipFile API (closes #72)

c3eddbf

Replace Expand-Archive (which scans every entry through PowerShell and materializes file objects) with the direct .NET ZipFile.ExtractToDirectory call. Same behavior, much lower per-archive overhead.

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Marius Storhaug (MariusStorhaug) added 2 commits May 19, 2026 01:45

Add test for cache-read failure fallback to improve coverage

ef4c99f

Exercises the new best-effort cache-hit path: places a directory at the cached file location to force Copy-Item failure, verifies the function falls back to a fresh download and completes the install successfully.

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Comment thread scripts/Measure-InstallPerformance.ps1 Outdated

Defer cache directory creation until approved by ShouldProcess; fix p…

f3f71bd

…erf script uninstall prefix match

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Comment thread tests/NerdFonts.Tests.ps1

Clean up test-created cache directories so tests leave no persistent …

f8137f2

…artifacts

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Marius Storhaug (MariusStorhaug) commented May 17, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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New: Install only the variants you need

Changed: Repeated installs reuse prior work

Changed: Multi-font installs complete faster

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Marius Storhaug (MariusStorhaug) commented May 17, 2026 •

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