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Merge pull request #6392 from danpls/fix-actualUrl-mercurial

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libfetchers: Fix assertion (Mercurial)
This commit is contained in:
Eelco Dolstra 2022-04-11 11:16:04 +02:00 committed by GitHub
parent 1f5d8e590e 38125a47ab
commit f7276bc948
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 14 additions and 4 deletions
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8
src/libfetchers/mercurial.cc
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@ -178,9 +178,11 @@ struct MercurialInputScheme : InputScheme
auto files = tokenizeString<std::set<std::string>>(
runHg({ "status", "-R", actualUrl, "--clean", "--modified", "--added", "--no-status", "--print0" }), "\0"s);
Path actualPath(absPath(actualUrl));
PathFilter filter = [&](const Path & p) -> bool {
assert(hasPrefix(p, actualUrl));
std::string file(p, actualUrl.size() + 1);
assert(hasPrefix(p, actualPath));
std::string file(p, actualPath.size() + 1);
auto st = lstat(p);
@ -193,7 +195,7 @@ struct MercurialInputScheme : InputScheme
return files.count(file);
};
auto storePath = store->addToStore(input.getName(), actualUrl, FileIngestionMethod::Recursive, htSHA256, filter);
auto storePath = store->addToStore(input.getName(), actualPath, FileIngestionMethod::Recursive, htSHA256, filter);
return {std::move(storePath), input};
}

10
tests/fetchMercurial.sh
View file

@ -7,7 +7,9 @@ fi
clearStore
repo=$TEST_ROOT/hg
# Intentionally not in a canonical form
# See https://github.com/NixOS/nix/issues/6195
repo=$TEST_ROOT/./hg
rm -rf $repo ${repo}-tmp $TEST_HOME/.cache/nix
@ -28,6 +30,12 @@ echo world > $repo/hello
hg commit --cwd $repo -m 'Bla2'
rev2=$(hg log --cwd $repo -r tip --template '{node}')
# Fetch an unclean branch.
echo unclean > $repo/hello
path=$(nix eval --impure --raw --expr "(builtins.fetchMercurial file://$repo).outPath")
[[ $(cat $path/hello) = unclean ]]
hg revert --cwd $repo --all
# Fetch the default branch.
path=$(nix eval --impure --raw --expr "(builtins.fetchMercurial file://$repo).outPath")
[[ $(cat $path/hello) = world ]]