From 3d5df01b5e42416a59e857135e932bbdd8cc3ba0 Mon Sep 17 00:00:00 2001 From: Derrick Stolee Date: Tue, 10 Apr 2018 08:56:07 -0400 Subject: commit-graph: build graph from starting commits Teach git-commit-graph to read commits from stdin when the --stdin-commits flag is specified. Commits reachable from these commits are added to the graph. This is a much faster way to construct the graph than inspecting all packed objects, but is restricted to known tips. For the Linux repository, 700,000+ commits were added to the graph file starting from 'master' in 7-9 seconds, depending on the number of packfiles in the repo (1, 24, or 120). Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano --- Documentation/git-commit-graph.txt | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'Documentation/git-commit-graph.txt') diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt index 8143cc3f07..442ac243e6 100644 --- a/Documentation/git-commit-graph.txt +++ b/Documentation/git-commit-graph.txt @@ -36,7 +36,13 @@ COMMANDS Write a commit graph file based on the commits found in packfiles. + With the `--stdin-packs` option, generate the new commit graph by -walking objects only in the specified pack-indexes. +walking objects only in the specified pack-indexes. (Cannot be combined +with --stdin-commits.) ++ +With the `--stdin-commits` option, generate the new commit graph by +walking commits starting at the commits specified in stdin as a list +of OIDs in hex, one OID per line. (Cannot be combined with +--stdin-packs.) 'read':: @@ -60,6 +66,12 @@ $ git commit-graph write $ echo | git commit-graph write --stdin-packs ------------------------------------------------ +* Write a graph file containing all reachable commits. ++ +------------------------------------------------ +$ git show-ref -s | git commit-graph write --stdin-commits +------------------------------------------------ + * Read basic information from the commit-graph file. + ------------------------------------------------ -- cgit v1.3