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MariusStorhaugMariusStorhaug
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remove uninstall
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‎action.yml‎

Lines changed: 21 additions & 104 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
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name: Install PowerShell
2-
description: Install a specific version of PowerShell Core on any GitHub runner (Linux, macOS, Windows). Handles install, downgrade, or forced reinstall.
2+
description: Install a specific version of PowerShell Core on any GitHub runner (Linux, macOS, Windows). Installs only when the requested version is not already present.
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author: PSModule
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branding:
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icon: terminal
@@ -9,9 +9,6 @@ inputs:
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Version:
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description: Exact PowerShell version to install (e.g. 7.4.1)
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required: true
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Reinstall:
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description: Set to 'true' to uninstall & reinstall even when the exact version is already present.
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default: 'false'
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runs:
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using: composite
@@ -20,161 +17,81 @@ runs:
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if: runner.os == 'Linux'
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env:
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REQUESTED_VERSION: ${{ inputs.Version }}
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REINSTALL: ${{ inputs.Reinstall }}
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shell: bash
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run: |
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set -e
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28-
echo "Detecting existing PowerShell on Linux..."
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DETECTED_VERSION=$(pwsh -NoLogo -NoProfile -Command '$PSVersionTable.PSVersion.ToString()' 2>/dev/null || true)
30-
echo "Detected version: ${DETECTED_VERSION:-<none>}"
31-
echo "Requested version: $REQUESTED_VERSION"
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echo "Reinstall flag: $REINSTALL"
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34-
if [[ -z "$DETECTED_VERSION" ]]; then
35-
DECISION="install"
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elif [[ "$DETECTED_VERSION" == "$REQUESTED_VERSION" ]]; then
37-
if [[ "$REINSTALL" == "true" ]]; then DECISION="reinstall"; else DECISION="skip"; fi
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else
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DECISION="uninstall-install" # covers downgrade or upgrade
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fi
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echo "Decision: $DECISION"
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43-
if [[ "$DECISION" == "skip" ]]; then
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echo "Skipping installation on Linux (exact version present)."
24+
if [[ "$DETECTED_VERSION" == "$REQUESTED_VERSION" ]]; then
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echo "PowerShell $DETECTED_VERSION already installed. Skipping."
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exit 0
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fi
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48-
# -------------------------------------------------------------------------------------------------
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# Debian/Ubuntu installation
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# -------------------------------------------------------------------------------------------------
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if command -v apt-get >/dev/null; then
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echo "Using APT package manager (Debian/Ubuntu)..."
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54-
echo "Ensuring Microsoft package repo is configured..."
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if ! grep -q "packages.microsoft.com" /etc/apt/sources.list /etc/apt/sources.list.d/* 2>/dev/null; then
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wget -qO- https://packages.microsoft.com/keys/microsoft.asc | sudo tee /etc/apt/trusted.gpg.d/microsoft.asc > /dev/null
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DIST_CODENAME=$(lsb_release -cs)
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sudo add-apt-repository "deb [arch=$(dpkg --print-architecture)] https://packages.microsoft.com/ubuntu/$DIST_CODENAME/prod $DIST_CODENAME main"
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fi
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61-
echo "Updating package index..."
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sudo apt-get update -y
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64-
if [[ "$DECISION" != "install" ]]; then
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echo "Removing any existing PowerShell packages..."
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sudo apt-get remove -y powershell || true
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sudo apt-get autoremove -y || true
68-
fi
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echo "Attempting to install exact version $REQUESTED_VERSION from repo..."
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EXACT_PKG=$(apt-cache madison powershell | awk '{print $3}' | grep -E "^${REQUESTED_VERSION}(-|$)" | head -n1 || true)
7240
if [[ -n "$EXACT_PKG" ]]; then
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sudo apt-get install -y powershell=$EXACT_PKG
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else
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echo "Exact version not found in repo; downloading .deb package from GitHub release..."
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ARCH=$(dpkg --print-architecture)
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DEB_NAME="powershell_${REQUESTED_VERSION}-1.deb_${ARCH}.deb"
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URL="https://github.com/PowerShell/PowerShell/releases/download/v${REQUESTED_VERSION}/${DEB_NAME}"
79-
echo "Fetching $URL"
8046
wget -q "$URL" -O "$DEB_NAME"
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sudo dpkg -i "$DEB_NAME" || sudo apt-get -f install -y
8248
fi
83-
8449
else
85-
echo "Unsupported Linux distribution (no apt-get). PowerShell install via package manager not implemented."
50+
echo "Unsupported Linux distribution (no apt-get)."
8651
exit 1
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fi
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8954
- name: Install PowerShell (macOS)
9055
if: runner.os == 'macOS'
9156
env:
9257
REQUESTED_VERSION: ${{ inputs.Version }}
93-
REINSTALL: ${{ inputs.Reinstall }}
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shell: bash
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run: |
9660
set -e
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98-
echo "Detecting existing PowerShell on macOS..."
9961
DETECTED_VERSION=$(pwsh -NoLogo -NoProfile -Command '$PSVersionTable.PSVersion.ToString()' 2>/dev/null || true)
100-
echo "Detected version: ${DETECTED_VERSION:-<none>}"
101-
echo "Requested version: $REQUESTED_VERSION"
102-
echo "Reinstall flag: $REINSTALL"
103-
104-
if [[ -z "$DETECTED_VERSION" ]]; then
105-
DECISION="install"
106-
elif [[ "$DETECTED_VERSION" == "$REQUESTED_VERSION" ]]; then
107-
if [[ "$REINSTALL" == "true" ]]; then DECISION="reinstall"; else DECISION="skip"; fi
108-
else
109-
DECISION="uninstall-install"
62+
if [[ "$DETECTED_VERSION" == "$REQUESTED_VERSION" ]]; then
63+
echo "PowerShell $DETECTED_VERSION already installed. Skipping."
64+
exit 0
11065
fi
111-
echo "Decision: $DECISION"
11266
113-
if [[ "$DECISION" == "skip" ]]; then
114-
echo "Skipping installation on macOS (exact version present)."
67+
if brew info --cask powershell@$REQUESTED_VERSION >/dev/null 2>&1; then
68+
brew install --cask powershell@$REQUESTED_VERSION
11569
else
116-
echo "Uninstalling any existing PowerShell..."
117-
brew uninstall --ignore-dependencies --force powershell || true
118-
119-
echo "Attempting to install PowerShell $REQUESTED_VERSION via Homebrew..."
120-
if brew info --cask powershell@$REQUESTED_VERSION >/dev/null 2>&1; then
121-
brew install --cask powershell@$REQUESTED_VERSION
122-
else
123-
echo "Exact version not available via Homebrew; downloading .pkg from GitHub release..."
124-
ARCH=$(uname -m)
125-
if [[ "$ARCH" == "arm64" ]]; then PKG_NAME="powershell-${REQUESTED_VERSION}-osx-arm64.pkg"; else PKG_NAME="powershell-${REQUESTED_VERSION}-osx-x64.pkg"; fi
126-
URL="https://github.com/PowerShell/PowerShell/releases/download/v${REQUESTED_VERSION}/${PKG_NAME}"
127-
echo "Fetching $URL"
128-
curl -sSL "$URL" -o "$PKG_NAME"
129-
sudo installer -pkg "$PKG_NAME" -target /
130-
fi
70+
ARCH=$(uname -m)
71+
if [[ "$ARCH" == "arm64" ]]; then PKG_NAME="powershell-${REQUESTED_VERSION}-osx-arm64.pkg"; else PKG_NAME="powershell-${REQUESTED_VERSION}-osx-x64.pkg"; fi
72+
URL="https://github.com/PowerShell/PowerShell/releases/download/v${REQUESTED_VERSION}/${PKG_NAME}"
73+
curl -sSL "$URL" -o "$PKG_NAME"
74+
sudo installer -pkg "$PKG_NAME" -target /
13175
fi
13276
13377
- name: Install PowerShell (Windows)
13478
if: runner.os == 'Windows'
13579
env:
13680
REQUESTED_VERSION: ${{ inputs.Version }}
137-
REINSTALL: ${{ inputs.Reinstall }}
13881
shell: powershell
13982
run: |
140-
Write-Host "Detecting existing PowerShell on Windows..."
14183
try {
14284
$detected = (& pwsh -NoLogo -NoProfile -Command '$PSVersionTable.PSVersion.ToString()')
14385
} catch {
14486
$detected = $null
14587
}
14688
147-
$detectedDisplay = if ([string]::IsNullOrWhiteSpace($detected)) { '<none>' } else { $detected }
148-
Write-Host "Detected version: $detectedDisplay"
149-
Write-Host "Requested version: $env:REQUESTED_VERSION"
150-
Write-Host "Reinstall flag: $env:REINSTALL"
151-
152-
if (-not $detected) {
153-
$decision = 'install'
154-
} elseif ($detected -eq $env:REQUESTED_VERSION) {
155-
if ($env:REINSTALL -eq 'true') {
156-
$decision = 'reinstall'
157-
} else {
158-
$decision = 'skip'
159-
}
160-
} else {
161-
$decision = 'uninstall-install'
89+
if ($detected -eq $env:REQUESTED_VERSION) {
90+
Write-Host "PowerShell $detected already installed. Skipping."
91+
exit 0
16292
}
163-
Write-Host "Decision: $decision"
16493
165-
if ($decision -eq 'skip') {
166-
Write-Host 'Skipping installation on Windows (exact version present).'
167-
} else {
168-
Write-Host 'Removing existing PowerShell installation (if any)...'
169-
$pwshProducts = Get-WmiObject -Class Win32_Product | Where-Object { $_.Name -like 'PowerShell*' }
170-
foreach ($p in $pwshProducts) {
171-
Write-Host "Uninstalling $($p.Name)..."
172-
Start-Process msiexec.exe -ArgumentList '/x', $p.IdentifyingNumber, '/quiet', '/norestart' -Wait
173-
}
174-
175-
Write-Host "Installing PowerShell $env:REQUESTED_VERSION..."
176-
$msi = "PowerShell-$($env:REQUESTED_VERSION)-win-x64.msi"
177-
$url = "https://github.com/PowerShell/PowerShell/releases/download/v$($env:REQUESTED_VERSION)/$msi"
178-
Invoke-WebRequest -Uri $url -OutFile $msi -UseBasicParsing
179-
Start-Process msiexec.exe -ArgumentList '/i', $msi, '/quiet', '/norestart' -Wait
180-
}
94+
$msi = "PowerShell-$($env:REQUESTED_VERSION)-win-x64.msi"
95+
$url = "https://github.com/PowerShell/PowerShell/releases/download/v$($env:REQUESTED_VERSION)/$msi"
96+
Invoke-WebRequest -Uri $url -OutFile $msi -UseBasicParsing
97+
Start-Process msiexec.exe -ArgumentList '/i', $msi, '/quiet', '/norestart' -Wait

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