[core] Windows: Only remove Pulsar/PPM from PATH during uninstall #1183
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Fixes #1157
When I originally wrote the section of our NSIS that removes Pulsar from the PATH during uninstallation, I was aware that this code would also be run during an upgrade, since the upgrade process uninstalls the old version then installs the new.
But I was under the impression that those steps were linear, running uninstallation steps then running installation steps.
But it seems that isn't the case. Meaning that even though the installation steps would add items to the PATH, our custom uninstallation steps were run afterwards, ultimately removing Pulsar/PPM from the PATH.
Luckily,
electron-builder
makes it easy to check if we are running an upgrade rather than a full uninstall. Meaning we can check how we are running, and only remove items from the PATH during a complete uninstall.