(#51) Linux: install PowerShell

Author: ForNeVeR

.github/workflows/main.yml

@@ -24,6 +24,9 @@ jobs:
         with:
           submodules: true
 
+      - name: Install PowerShell
+        run: sh ./linux/install-pwsh.sh
+
       # Build:
       - name: Install
         shell: pwsh
@@ -81,6 +84,9 @@ jobs:
         with:
           submodules: true
 
+      - name: Install PowerShell
+        run: sh ./linux/install-pwsh.sh
+
       - name: Download Linux artifact
         uses: actions/download-artifact@v2
         with:

linux/install-pwsh.sh

@@ -0,0 +1,8 @@
+set -e
+
+cd /tmp
+wget https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb
+dpkg -i packages-microsoft-prod.deb
+
+apt-get update
+apt-get install powershell