Comments (2)
In the github.com/rust-lang/rust
repo, there is a pretty big time difference:
$ time rg E0401 | wc -l
7
real 0m0.072s
user 0m0.393s
sys 0m0.087s
$ time rg E0401 src/lib* | wc -l
6
real 0m0.202s
user 0m1.623s
sys 0m0.007s
If -u
is passed to the second command, then the time difference goes away.
This means ripgrep
is spending a lot of time reinitializing ignore state. There are some obvious things we shouldn't be redoing, like the globs and type filters from the command line, but those happen even with the -u
flag, so they aren't the problem. The likely problem is re-traversing parent directories for gitignore
files. Indeed, if --no-ignore-parent
is given, then the performance difference goes away.
This means we need to keep our gitignores from parent directories around and try to reuse them.
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Fixed in #202.
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