Fix GetHeadTreeId to only read head commit#1889
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tyrielv merged 1 commit intomicrosoft:masterfrom Dec 12, 2025
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The previous implementation of GetHeadTreeId called "git show -s". "-s" suppresses the diff from the output, but it turns out git still performs the diff operation internally. The inefficiency isn't necessarily an issue, but we are running git.exe with the virtualization hook off so if the objects required for the diff are not already downloaded the command will fail. The new implementation produces the same output, but doesn't try to do a diff at all.
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derrickstolee
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Dec 12, 2025
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The previous implementation of GetHeadTreeId called "git show -s". "-s" suppresses the diff from the output, but it turns out git still performs the diff operation internally. The inefficiency isn't necessarily an issue, but we are running git.exe with the virtualization hook off so if the objects required for the diff are not already downloaded the command will fail.
The new implementation produces the same output, but doesn't try to do a diff at all.