dockerfile: improve detection of reachable stages #4970
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Avoid duplicates and exponential complexity in cases there are lots of stages. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
crazy-max
approved these changes
May 30, 2024
jsternberg
approved these changes
May 30, 2024
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Avoid duplicates and exponential complexity in cases where there are lots of stages.
Discovered this while looking at the giant Dockerfile from #4948 .