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Fix extraction of name for defaultPackage URLs

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Bob van der Linden 2024-02-26 21:45:41 +01:00
parent d83008c3a7
commit e5d9130a5b
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2 changed files with 7 additions and 8 deletions
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14
src/libexpr/flake/url-name.cc
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@ -5,13 +5,12 @@
namespace nix {
static const std::string attributeNamePattern("[a-zA-Z0-9_-]+");
static const std::regex lastAttributeRegex("(?:" + attributeNamePattern + "\\.)*(?!default)(" + attributeNamePattern +")(\\^.*)?");
static const std::regex lastAttributeRegex("^((?:" + attributeNamePattern + "\\.)*)(" + attributeNamePattern +")(\\^.*)?$");
static const std::string pathSegmentPattern("[a-zA-Z0-9_-]+");
static const std::regex lastPathSegmentRegex(".*/(" + pathSegmentPattern +")");
static const std::regex secondPathSegmentRegex("(?:" + pathSegmentPattern + ")/(" + pathSegmentPattern +")(?:/.*)?");
static const std::regex gitProviderRegex("github|gitlab|sourcehut");
static const std::regex gitSchemeRegex("git($|\\+.*)");
static const std::regex defaultOutputRegex(".*\\.default($|\\^.*)");
std::optional<std::string> getNameFromURL(const ParsedURL & url)
{
@ -22,8 +21,11 @@ std::optional<std::string> getNameFromURL(const ParsedURL & url)
return url.query.at("dir");
/* If the fragment isn't a "default" and contains two attribute elements, use the last one */
if (std::regex_match(url.fragment, match, lastAttributeRegex))
return match.str(1);
if (std::regex_match(url.fragment, match, lastAttributeRegex)
&& match.str(1) != "defaultPackage."
&& match.str(2) != "default") {
return match.str(2);
}
/* If this is a github/gitlab/sourcehut flake, use the repo name */
if (std::regex_match(url.scheme, gitProviderRegex) && std::regex_match(url.path, match, secondPathSegmentRegex))
@ -33,10 +35,6 @@ std::optional<std::string> getNameFromURL(const ParsedURL & url)
if (std::regex_match(url.scheme, gitSchemeRegex) && std::regex_match(url.path, match, lastPathSegmentRegex))
return match.str(1);
/* If everything failed but there is a non-default fragment, use it in full */
if (!url.fragment.empty() && !std::regex_match(url.fragment, defaultOutputRegex))
return url.fragment;
/* If there is no fragment, take the last element of the path */
if (std::regex_match(url.path, match, lastPathSegmentRegex))
return match.str(1);