Max Brunsfeld b3e1514b00 Avoid caching zed build script if git state has changed (#3610) ... @as-cii and @SomeoneToIgnore noticed a bug where Zed nightly would continuously report that an update was available. This nightly auto-update logic depends on the `ZED_COMMIT_SHA` constant, which is compiled into the app via an rustc environment variable that is assigned in the `zed2` build script. I think the bug was caused by the `zed2` build script's output being cached on our CI, when building the nightly app bundle. The result was that the `publish-nightly` action updated the "current SHA" for nightly, but uploaded an artifact whose `ZED_COMMIT_SHA` was cached from an earlier version. I've added a line to the `build.rs` that triggers a rerun if the `.git/logs/HEAD` file has been changed. I think this should prevent the unwanted caching.		2023-12-12 10:27:57 -08:00
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