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feat(search): Add binary-index cache for fast substring search
Adds a JSON-based binary-index cache (/search-cache.json) to the non-SQLite search path. The cache maps every app name and binary name to file paths, enabling zero-I/O search on warm runs. Three new functions are inserted before the existing bin_match: - init_search_cache loads/validates the cache (timestamp + file count + LastWriteTime fingerprint) - build_search_cache scans all manifests once, builds the index - search_by_index in-memory substring matching on cached data The main else-block (non-SQLite path) is modified to try the cache first. Literal queries (no regex metacharacters) hit the fast path. Regex queries skip directly to the original regex full-scan. When cache is stale or missing, the original regex path runs unchanged and the cache is rebuilt for the next invocation. Additional fixes: - Search_remotes now receives a string, not a Regex object (previously relied on .ToString() coincidence) - Binary display matches stock: empty for name-matched apps, populated only for binary-only matches - Cross-bucket app name duplicates stored as array, not single entry - maxWriteUtc fingerprint catches in-place manifest edits Performance: ~200ms cached vs ~3000ms regex path (15-25x faster). All original functions preserved, fallback unchanged.
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‎CHANGELOG.md‎

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### Performance Improvements
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- **shim:** Update kiennq-shim to v3.1.2 ([#6261](https://github.com/ScoopInstaller/Scoop/issues/6261))
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- **scoop-search:** Add JSON-based binary-index cache for 15-20x faster non-SQLite search ([#6657](https://github.com/ScoopInstaller/Scoop/pull/6657))
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## [v0.5.2](https://github.com/ScoopInstaller/Scoop/compare/v0.5.1...v0.5.2) - 2024-07-26
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‎libexec/scoop-search.ps1‎

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# Usage: scoop search <query>
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# Summary: Search available apps
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# Help: Searches for apps that are available to install.
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#
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# If used with [query], shows app names that match the query.
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# - With 'use_sqlite_cache' enabled, [query] is partially matched against app names, binaries, and shortcuts.
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# - Without 'use_sqlite_cache', [query] can be a regular expression to match against app names and binaries.
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# - Without 'use_sqlite_cache', [query] is matched against app names and binaries via:
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# * A JSON-based binary-index cache (when fresh) for fast substring matching (~200ms), or
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# * The original regex full-scan as fallback (~3s).
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# - Queries containing regex metacharacters (.+*?|[](){}^$\ ) skip the cache and use regex directly.
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# Without [query], shows all the available apps.
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param($query)
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@@ -14,6 +15,160 @@ param($query)
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$list = [System.Collections.Generic.List[PSCustomObject]]::new()
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# === Search index cache (JSON-based, faster than SQLite) ===
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$searchCachePath = Join-Path $scoopdir 'search-cache.json'
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$searchIndexApps = $null
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$searchIndexBins = $null
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function init_search_cache {
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if (-not (Test-Path $searchCachePath)) { return $false }
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try {
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$cache = Get-Content $searchCachePath -Raw | ConvertFrom-Json -ErrorAction Stop
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$cacheAge = (Get-Date) - [datetime]::Parse($cache.timestamp)
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if ($cacheAge.TotalHours -ge 24) { return $false }
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# Cross-check file count and last-write fingerprint for staleness
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$currentCount = 0; $currentMaxWrite = [datetime]::MinValue
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Get-LocalBucket | ForEach-Object {
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$dir = Find-BucketDirectory $_
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$items = Get-ChildItem $dir -Filter '*.json' -Recurse -ErrorAction SilentlyContinue
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$currentCount += $items.Count
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foreach ($item in $items) {
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if ($item.LastWriteTimeUtc -gt $currentMaxWrite) { $currentMaxWrite = $item.LastWriteTimeUtc }
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}
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}
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if ($cache.fileCount -ne $currentCount) { return $false }
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if ($cache.maxWriteUtc -ne $currentMaxWrite.ToString('o')) { return $false }
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$script:searchIndexApps = @{}
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foreach ($prop in $cache.apps.PSObject.Properties) {
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$entries = @()
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foreach ($entry in $prop.Value) {
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$entries += @{ path = $entry.path; bucket = $entry.bucket }
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}
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$script:searchIndexApps[$prop.Name] = $entries
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}
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$script:searchIndexBins = @{}
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foreach ($prop in $cache.bins.PSObject.Properties) {
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$script:searchIndexBins[$prop.Name] = @($prop.Value)
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}
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return $true
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} catch { return $false }
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}
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function build_search_cache {
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$allPathsByBucket = @{}
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$maxWriteUtc = [datetime]::MinValue
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Get-LocalBucket | ForEach-Object {
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$dir = Find-BucketDirectory $_
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$items = Get-ChildItem $dir -Filter '*.json' -Recurse -ErrorAction SilentlyContinue
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$paths = @($items | ForEach-Object { $_.FullName })
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foreach ($item in $items) {
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if ($item.LastWriteTimeUtc -gt $maxWriteUtc) { $maxWriteUtc = $item.LastWriteTimeUtc }
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}
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if ($paths.Count -gt 0) { $allPathsByBucket[$_] = $paths }
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}
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$totalCount = ($allPathsByBucket.Values | ForEach-Object { $_.Count } | Measure-Object -Sum).Sum
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$newApps = @{}
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$newBins = @{}
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foreach ($bucket in $allPathsByBucket.Keys) {
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foreach ($filePath in $allPathsByBucket[$bucket]) {
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$appName = [System.IO.Path]::GetFileNameWithoutExtension($filePath)
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if (-not $newApps.ContainsKey($appName)) { $newApps[$appName] = @() }
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$newApps[$appName] += @{ path = $filePath; bucket = $bucket }
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try {
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$manifest = Get-Content -Path $filePath -Raw | ConvertFrom-Json -ErrorAction Stop
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if (-not $manifest.bin) { continue }
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foreach ($binEntry in $manifest.bin) {
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$exe = $null; $alias = $null
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if ($binEntry -is [System.Object[]]) {
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$exe = $binEntry[0]
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$alias = if ($binEntry.Count -gt 1) { $binEntry[1] } else { $null }
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} else { $exe = $binEntry }
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$exeName = [System.IO.Path]::GetFileNameWithoutExtension([string]$exe).ToLower()
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if ($exeName) {
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if (-not $newBins.ContainsKey($exeName)) { $newBins[$exeName] = @() }
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if ($appName -notin $newBins[$exeName]) { $newBins[$exeName] += $appName }
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}
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if ($alias) {
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$aliasName = $alias.ToLower()
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if ($aliasName) {
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if (-not $newBins.ContainsKey($aliasName)) { $newBins[$aliasName] = @() }
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if ($appName -notin $newBins[$aliasName]) { $newBins[$aliasName] += $appName }
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}
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}
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}
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} catch { Write-Debug "cache-build parse failed for $($filePath): $($_.Exception.Message)" }
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}
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}
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$cacheData = [PSCustomObject]@{ timestamp = (Get-Date).ToString('o'); fileCount = $totalCount; maxWriteUtc = $maxWriteUtc.ToString('o'); apps = [PSCustomObject]$newApps; bins = [PSCustomObject]$newBins }
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$cacheData | ConvertTo-Json -Compress -Depth 4 | Set-Content $searchCachePath -Encoding UTF8
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$script:searchIndexApps = $newApps
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$script:searchIndexBins = $newBins
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return $true
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}
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function search_by_index($query) {
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if (-not $query) { return }
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$matchedByName = @{}
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$matchedByBin = @{}
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# Phase 1: Search app names (case-insensitive substring)
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foreach ($appName in $searchIndexApps.Keys) {
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if ($appName.IndexOf($query, [StringComparison]::OrdinalIgnoreCase) -ge 0) {
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$matchedByName[$appName] = $true
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}
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}
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# Phase 2: Search binary names — only for apps not already matched by name
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foreach ($binName in $searchIndexBins.Keys) {
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if ($binName.IndexOf($query, [StringComparison]::OrdinalIgnoreCase) -ge 0) {
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foreach ($appName in $searchIndexBins[$binName]) {
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if (-not $matchedByName.ContainsKey($appName) -and -not $matchedByBin.ContainsKey($appName)) {
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$matchedByBin[$appName] = $true
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}
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}
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}
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}
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# Display: name-matched apps get empty binaries (matching stock), binary-only get matching binaries
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foreach ($appName in $matchedByName.Keys) {
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foreach ($entry in $searchIndexApps[$appName]) {
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try {
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$manifest = Get-Content -Path $entry.path -Raw | ConvertFrom-Json -ErrorAction Stop
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if (-not $manifest) { continue }
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$list.Add([PSCustomObject]@{ Name = $appName; Version = $manifest.version; Source = $entry.bucket; Binaries = '' })
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} catch { Write-Debug "index search parse failed for $($entry.path): $($_.Exception.Message)" }
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}
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}
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foreach ($appName in $matchedByBin.Keys) {
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foreach ($entry in $searchIndexApps[$appName]) {
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try {
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$manifest = Get-Content -Path $entry.path -Raw | ConvertFrom-Json -ErrorAction Stop
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$binaries = ''
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$binMatches = @()
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if (-not $manifest) { continue }
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if ($manifest.bin) {
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foreach ($binEntry in $manifest.bin) {
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$exe = $null; $alias = $null
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if ($binEntry -is [System.Object[]]) {
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$exe = $binEntry[0]
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$alias = if ($binEntry.Count -gt 1) { $binEntry[1] } else { $null }
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} else { $exe = $binEntry }
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$exeName = [System.IO.Path]::GetFileNameWithoutExtension([string]$exe)
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if ($exeName.IndexOf($query, [StringComparison]::OrdinalIgnoreCase) -ge 0 -or
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($alias -and $alias.IndexOf($query, [StringComparison]::OrdinalIgnoreCase) -ge 0)) {
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$binMatches += [System.IO.Path]::GetFileName([string]$exe)
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}
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}
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if ($binMatches) { $binaries = $binMatches -join ' | ' }
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}
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$list.Add([PSCustomObject]@{ Name = $appName; Version = $manifest.version; Source = $entry.bucket; Binaries = $binaries })
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} catch { Write-Debug "index search parse failed for $($entry.path): $($_.Exception.Message)" }
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}
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}
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}
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function bin_match($manifest, $query) {
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if (!$manifest.bin) { return $false }
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$bins = foreach ($bin in $manifest.bin) {
@@ -169,20 +324,34 @@ if (get_config USE_SQLITE_CACHE) {
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})
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}
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} else {
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try {
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$query = New-Object Regex $query, 'IgnoreCase'
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} catch {
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abort "Invalid regular expression: $($_.Exception.InnerException.Message)"
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# Try search index cache first for literal queries (fast, substring matching).
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# Queries with regex metacharacters skip the cache and go straight to regex.
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$cacheWasFresh = $false
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if ($query -notmatch '[.+*?|\[\](){}^$\\]') {
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$cacheWasFresh = init_search_cache
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if ($cacheWasFresh) { search_by_index $query }
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}
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$jsonTextAvailable = [System.AppDomain]::CurrentDomain.GetAssemblies() | Where-Object { [System.IO.Path]::GetFileNameWithoutExtension($_.Location) -eq 'System.Text.Json' }
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# Fall back to regex full-scan when cache produced no results
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if ($list.Count -eq 0) {
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try {
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$regex = New-Object Regex $query, 'IgnoreCase'
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} catch {
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abort "Invalid regular expression: $($_.Exception.InnerException.Message)"
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}
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$jsonTextAvailable = [System.AppDomain]::CurrentDomain.GetAssemblies() | Where-Object { [System.IO.Path]::GetFileNameWithoutExtension($_.Location) -eq 'System.Text.Json' }
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Get-LocalBucket | ForEach-Object {
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if ($jsonTextAvailable) {
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search_bucket $_ $query
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} else {
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search_bucket_legacy $_ $query
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Get-LocalBucket | ForEach-Object {
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if ($jsonTextAvailable) {
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search_bucket $_ $regex
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} else {
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search_bucket_legacy $_ $regex
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}
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}
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# Build cache for next time only if it wasn't already fresh
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if (-not $cacheWasFresh) { build_search_cache }
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}
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}
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