On 5/22/2019 2:49 PM, Karl Ostmo wrote: > After producing the file ".git/objects/info/commit-graph" with the > command "git commit-graph write", is there a way to answer queries > like "git merge-base --is-ancestor" without having a .git directory? > E.g. is there a library that will operate on the "commit-graph" file > all by itself? You could certainly build such a tool, assuming your merge-base parameters are full-length commit ids. If you try to start at ref names, you'll need the .git directory. I would not expect such a tool to ever exist in the Git codebase. Instead, you would need a new project, say "graph-analyzer --graph=<path> --is-ancestor <id1> <id2>" Thanks, -Stolee