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fix sourcehut brach/tag resolving regression

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nixos/nix#6290 introduced a regex pattern to account for tags when
resolving sourcehut refs. nixos/nix#4638 reafactored the code,
accidentally treating the pattern as a regular string, causing all
non-HEAD ref resolving to break.

This fixes the regression and adds more test cases to avoid future
breakage.
This commit is contained in:
Gabriel Fontes 2022-06-11 16:52:20 -03:00
parent 37fc4d73bb
commit 9f6b4639c2
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GPG key ID: 2E54EA7BFE630916
2 changed files with 17 additions and 5 deletions
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9
src/libfetchers/github.cc
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@ -381,7 +381,7 @@ struct SourceHutInputScheme : GitArchiveInputScheme
Headers headers = makeHeadersWithAuthTokens(host);
std::string ref_uri;
std::string refUri;
if (ref == "HEAD") {
auto file = store->toRealPath(
downloadFile(store, fmt("%s/HEAD", base_url), "source", false, headers).storePath);
@ -393,10 +393,11 @@ struct SourceHutInputScheme : GitArchiveInputScheme
if (!remoteLine) {
throw BadURL("in '%d', couldn't resolve HEAD ref '%d'", input.to_string(), ref);
}
ref_uri = remoteLine->target;
refUri = remoteLine->target;
} else {
ref_uri = fmt("refs/(heads|tags)/%s", ref);
refUri = fmt("refs/(heads|tags)/%s", ref);
}
std::regex refRegex(refUri);
auto file = store->toRealPath(
downloadFile(store, fmt("%s/info/refs", base_url), "source", false, headers).storePath);
@ -406,7 +407,7 @@ struct SourceHutInputScheme : GitArchiveInputScheme
std::optional<std::string> id;
while(!id && getline(is, line)) {
auto parsedLine = git::parseLsRemoteLine(line);
if (parsedLine && parsedLine->reference == ref_uri)
if (parsedLine && parsedLine->reference && std::regex_match(*parsedLine->reference, refRegex))
id = parsedLine->target;
}