Add Linear as a Windows FMA (#43521)

Add Windows support for Linear: new winget input
(ee/maintained-apps/inputs/winget/linear.json) with installer metadata
and category, plus install/uninstall PowerShell scripts. Add output
metadata (ee/maintained-apps/outputs/linear/windows.json) including a
version entry, installer URL, sha256 and script refs, and register the
app in apps.json. Update frontend icon component to reference a new PNG
and add the image asset.

<!-- Add the related story/sub-task/bug number, like Resolves #123, or
remove if NA -->
**Related issue:** Resolves #43501

ee/maintained-apps/inputs/winget/linear.json

@@ -0,0 +1,13 @@
+{
+  "name": "Linear",
+  "slug": "linear/windows",
+  "package_identifier": "LinearOrbit.Linear",
+  "unique_identifier": "Linear",
+  "fuzzy_match_name": true,
+  "installer_arch": "x64",
+  "installer_type": "exe",
+  "installer_scope": "machine",
+  "install_script_path": "ee/maintained-apps/inputs/winget/scripts/linear_install.ps1",
+  "uninstall_script_path": "ee/maintained-apps/inputs/winget/scripts/linear_uninstall.ps1",
+  "default_categories": ["Productivity"]
+}

ee/maintained-apps/inputs/winget/scripts/linear_install.ps1

@@ -0,0 +1,26 @@
+# Learn more about .exe install scripts:
+# http://fleetdm.com/learn-more-about/exe-install-scripts
+
+$exeFilePath = "${env:INSTALLER_PATH}"
+
+try {
+    # Linear uses a Nullsoft installer:
+    # - /S for silent installation
+    # - /allusers for machine-scope installs
+    $processOptions = @{
+        FilePath     = "$exeFilePath"
+        ArgumentList = "/S /allusers"
+        PassThru     = $true
+        Wait         = $true
+    }
+
+    $process = Start-Process @processOptions
+    $exitCode = $process.ExitCode
+
+    Write-Host "Install exit code: $exitCode"
+    Exit $exitCode
+}
+catch {
+    Write-Host "Error: $_"
+    Exit 1
+}

ee/maintained-apps/inputs/winget/scripts/linear_uninstall.ps1

@@ -0,0 +1,112 @@
+# Attempts to locate Linear's uninstaller from registry and execute it silently
+
+$displayName = "Linear"
+$productCode = "e614e7b4-b4f2-531a-be3f-ebb7fc898755"
+
+$paths = @(
+    'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall',
+    'HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall'
+)
+
+$uninstall = $null
+
+foreach ($p in $paths) {
+    $codeCandidates = @(
+        "$p\$productCode",
+        "$p\{$productCode}"
+    )
+
+    foreach ($candidate in $codeCandidates) {
+        if (Test-Path $candidate) {
+            $uninstall = Get-ItemProperty -Path $candidate -ErrorAction SilentlyContinue
+            if ($uninstall) {
+                break
+            }
+        }
+    }
+
+    if ($uninstall) {
+        break
+    }
+
+    $items = Get-ItemProperty "$p\*" -ErrorAction SilentlyContinue | Where-Object {
+        $_.DisplayName -and ($_.DisplayName -eq $displayName -or $_.DisplayName -like "$displayName*")
+    }
+
+    if ($items) {
+        $uninstall = $items | Select-Object -First 1
+        break
+    }
+}
+
+if (-not $uninstall) {
+    Write-Host "Uninstall entry not found"
+    Exit 0
+}
+
+$uninstallString = if ($uninstall.QuietUninstallString) {
+    $uninstall.QuietUninstallString
+}
+else {
+    $uninstall.UninstallString
+}
+
+if (-not $uninstallString) {
+    Write-Host "Uninstall command not found"
+    Exit 0
+}
+
+# Stop the app before uninstalling.
+Stop-Process -Name "Linear" -Force -ErrorAction SilentlyContinue
+
+$exePath = ""
+$arguments = ""
+
+if ($uninstallString -match '^"([^"]+)"(.*)') {
+    $exePath = $matches[1]
+    $arguments = $matches[2].Trim()
+}
+elseif ($uninstallString -match '^([^\s]+)(.*)') {
+    $exePath = $matches[1]
+    $arguments = $matches[2].Trim()
+}
+else {
+    Write-Host "Error: Could not parse uninstall string: $uninstallString"
+    Exit 1
+}
+
+$argumentList = @()
+if ($arguments -ne '') {
+    $argumentList += $arguments -split '\s+'
+}
+
+# NSIS uninstallers require /S for silent mode.
+if ($argumentList -notcontains "/S" -and $arguments -notmatch '\b/S\b') {
+    $argumentList += "/S"
+}
+
+Write-Host "Uninstall executable: $exePath"
+Write-Host "Uninstall arguments: $($argumentList -join ' ')"
+
+try {
+    $processOptions = @{
+        FilePath   = $exePath
+        NoNewWindow = $true
+        PassThru   = $true
+        Wait       = $true
+    }
+
+    if ($argumentList.Count -gt 0) {
+        $processOptions.ArgumentList = $argumentList
+    }
+
+    $process = Start-Process @processOptions
+    $exitCode = $process.ExitCode
+
+    Write-Host "Uninstall exit code: $exitCode"
+    Exit $exitCode
+}
+catch {
+    Write-Host "Error running uninstaller: $_"
+    Exit 1
+}

ee/maintained-apps/outputs/apps.json

@@ -1002,6 +1002,13 @@
       "unique_identifier": "com.linear",
       "description": "Linear is an app to manage software development and track bugs."
     },
+    {
+      "name": "Linear",
+      "slug": "linear/windows",
+      "platform": "windows",
+      "unique_identifier": "Linear",
+      "description": "Linear is an app to manage software development and track bugs."
+    },
     {
       "name": "Little Snitch",
       "slug": "little-snitch/darwin",
@@ -1955,4 +1962,4 @@
       "description": "Zotero is a free tool for collecting, organizing, citing, and sharing research."
     }
   ]
-}
+}

ee/maintained-apps/outputs/linear/windows.json

@@ -0,0 +1,22 @@
+{
+  "versions": [
+    {
+      "version": "1.28.13",
+      "queries": {
+        "exists": "SELECT 1 FROM programs WHERE name LIKE 'Linear %' AND publisher = 'Linear Orbit, Inc.';",
+        "patched": "SELECT 1 WHERE NOT EXISTS (SELECT 1 FROM programs WHERE name LIKE 'Linear %' AND publisher = 'Linear Orbit, Inc.' AND version_compare(version, '1.28.13') < 0);"
+      },
+      "installer_url": "https://download.todesktop.com/200315glz2793v6/Linear%20Setup%201.28.13%20-%20Build%20260318pho1bttxr-x64.exe",
+      "install_script_ref": "166c7345",
+      "uninstall_script_ref": "b1906016",
+      "sha256": "6279df1ceab3d4c66ff9185b8a3bb121137d52e0abae80db5a0b9708d0eb2352",
+      "default_categories": [
+        "Productivity"
+      ]
+    }
+  ],
+  "refs": {
+    "166c7345": "# Learn more about .exe install scripts:\n# http://fleetdm.com/learn-more-about/exe-install-scripts\n\n$exeFilePath = \"${env:INSTALLER_PATH}\"\n\ntry {\n    # Linear uses a Nullsoft installer:\n    # - /S for silent installation\n    # - /allusers for machine-scope installs\n    $processOptions = @{\n        FilePath     = \"$exeFilePath\"\n        ArgumentList = \"/S /allusers\"\n        PassThru     = $true\n        Wait         = $true\n    }\n\n    $process = Start-Process @processOptions\n    $exitCode = $process.ExitCode\n\n    Write-Host \"Install exit code: $exitCode\"\n    Exit $exitCode\n}\ncatch {\n    Write-Host \"Error: $_\"\n    Exit 1\n}\n",
+    "b1906016": "# Attempts to locate Linear's uninstaller from registry and execute it silently\n\n$displayName = \"Linear\"\n$productCode = \"e614e7b4-b4f2-531a-be3f-ebb7fc898755\"\n\n$paths = @(\n    'HKLM:\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall',\n    'HKLM:\\SOFTWARE\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall'\n)\n\n$uninstall = $null\n\nforeach ($p in $paths) {\n    $codeCandidates = @(\n        \"$p\\$productCode\",\n        \"$p\\{$productCode}\"\n    )\n\n    foreach ($candidate in $codeCandidates) {\n        if (Test-Path $candidate) {\n            $uninstall = Get-ItemProperty -Path $candidate -ErrorAction SilentlyContinue\n            if ($uninstall) {\n                break\n            }\n        }\n    }\n\n    if ($uninstall) {\n        break\n    }\n\n    $items = Get-ItemProperty \"$p\\*\" -ErrorAction SilentlyContinue | Where-Object {\n        $_.DisplayName -and ($_.DisplayName -eq $displayName -or $_.DisplayName -like \"$displayName*\")\n    }\n\n    if ($items) {\n        $uninstall = $items | Select-Object -First 1\n        break\n    }\n}\n\nif (-not $uninstall) {\n    Write-Host \"Uninstall entry not found\"\n    Exit 0\n}\n\n$uninstallString = if ($uninstall.QuietUninstallString) {\n    $uninstall.QuietUninstallString\n}\nelse {\n    $uninstall.UninstallString\n}\n\nif (-not $uninstallString) {\n    Write-Host \"Uninstall command not found\"\n    Exit 0\n}\n\n# Stop the app before uninstalling.\nStop-Process -Name \"Linear\" -Force -ErrorAction SilentlyContinue\n\n$exePath = \"\"\n$arguments = \"\"\n\nif ($uninstallString -match '^\"([^\"]+)\"(.*)') {\n    $exePath = $matches[1]\n    $arguments = $matches[2].Trim()\n}\nelseif ($uninstallString -match '^([^\\s]+)(.*)') {\n    $exePath = $matches[1]\n    $arguments = $matches[2].Trim()\n}\nelse {\n    Write-Host \"Error: Could not parse uninstall string: $uninstallString\"\n    Exit 1\n}\n\n$argumentList = @()\nif ($arguments -ne '') {\n    $argumentList += $arguments -split '\\s+'\n}\n\n# NSIS uninstallers require /S for silent mode.\nif ($argumentList -notcontains \"/S\" -and $arguments -notmatch '\\b/S\\b') {\n    $argumentList += \"/S\"\n}\n\nWrite-Host \"Uninstall executable: $exePath\"\nWrite-Host \"Uninstall arguments: $($argumentList -join ' ')\"\n\ntry {\n    $processOptions = @{\n        FilePath   = $exePath\n        NoNewWindow = $true\n        PassThru   = $true\n        Wait       = $true\n    }\n\n    if ($argumentList.Count -gt 0) {\n        $processOptions.ArgumentList = $argumentList\n    }\n\n    $process = Start-Process @processOptions\n    $exitCode = $process.ExitCode\n\n    Write-Host \"Uninstall exit code: $exitCode\"\n    Exit $exitCode\n}\ncatch {\n    Write-Host \"Error running uninstaller: $_\"\n    Exit 1\n}\n"
+  }
+}