Cache PostgreSQL package downloads - #71
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PostgreSQL packages are downloaded from upstream repositories on every action invocation. These downloads account for a significant portion of the setup time and are redundant when the package version has not changed. They are not always reliable either: Chocolatey, for example, frequently fails to download the PostgreSQL installer. So we better cache these downloads to make subsequent runs faster and more reliable. Since package updates retain the same PostgreSQL major version, rotate cache keys weekly to allow updated packages to be cached for the same platform and PostgreSQL version.
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PostgreSQL packages are downloaded from upstream repositories on every action invocation. These downloads account for a significant portion of the setup time and are redundant when the package version has not changed. They are not always reliable either: Chocolatey, for example, frequently fails to download the PostgreSQL installer. So we better cache these downloads to make subsequent runs faster and more reliable.
Since package updates retain the same PostgreSQL major version, rotate cache keys weekly to allow updated packages to be cached for the same platform and PostgreSQL version.