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Re-allow inputs.x.url = "/path/to/file"

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This commit is contained in:
Eelco Dolstra 2021-12-13 20:54:43 +01:00
parent 46d86e06ba
commit 32a62b0d25
4 changed files with 65 additions and 40 deletions
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77
src/libexpr/flake/flakeref.cc
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@ -48,9 +48,12 @@ FlakeRef FlakeRef::resolve(ref<Store> store) const
}
FlakeRef parseFlakeRef(
const std::string & url, const std::optional<Path> & baseDir, bool allowMissing)
const std::string & url,
const std::optional<Path> & baseDir,
bool allowMissing,
bool isFlake)
{
auto [flakeRef, fragment] = parseFlakeRefWithFragment(url, baseDir, allowMissing);
auto [flakeRef, fragment] = parseFlakeRefWithFragment(url, baseDir, allowMissing, isFlake);
if (fragment != "")
throw Error("unexpected fragment '%s' in flake reference '%s'", fragment, url);
return flakeRef;
@ -67,7 +70,10 @@ std::optional<FlakeRef> maybeParseFlakeRef(
}
std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
const std::string & url, const std::optional<Path> & baseDir, bool allowMissing)
const std::string & url,
const std::optional<Path> & baseDir,
bool allowMissing,
bool isFlake)
{
using namespace fetchers;
@ -112,46 +118,49 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
to 'baseDir'). If so, search upward to the root of the
repo (i.e. the directory containing .git). */
path = absPath(path, baseDir, true);
path = absPath(path, baseDir);
if (!S_ISDIR(lstat(path).st_mode))
throw BadURL("path '%s' is not a flake (because it's not a directory)", path);
if (isFlake) {
if (!allowMissing && !pathExists(path + "/flake.nix"))
throw BadURL("path '%s' is not a flake (because it doesn't contain a 'flake.nix' file)", path);
if (!S_ISDIR(lstat(path).st_mode))
throw BadURL("path '%s' is not a flake (because it's not a directory)", path);
auto flakeRoot = path;
std::string subdir;
if (!allowMissing && !pathExists(path + "/flake.nix"))
throw BadURL("path '%s' is not a flake (because it doesn't contain a 'flake.nix' file)", path);
while (flakeRoot != "/") {
if (pathExists(flakeRoot + "/.git")) {
auto base = std::string("git+file://") + flakeRoot;
auto flakeRoot = path;
std::string subdir;
auto parsedURL = ParsedURL{
.url = base, // FIXME
.base = base,
.scheme = "git+file",
.authority = "",
.path = flakeRoot,
.query = decodeQuery(match[2]),
};
while (flakeRoot != "/") {
if (pathExists(flakeRoot + "/.git")) {
auto base = std::string("git+file://") + flakeRoot;
if (subdir != "") {
if (parsedURL.query.count("dir"))
throw Error("flake URL '%s' has an inconsistent 'dir' parameter", url);
parsedURL.query.insert_or_assign("dir", subdir);
auto parsedURL = ParsedURL{
.url = base, // FIXME
.base = base,
.scheme = "git+file",
.authority = "",
.path = flakeRoot,
.query = decodeQuery(match[2]),
};
if (subdir != "") {
if (parsedURL.query.count("dir"))
throw Error("flake URL '%s' has an inconsistent 'dir' parameter", url);
parsedURL.query.insert_or_assign("dir", subdir);
}
if (pathExists(flakeRoot + "/.git/shallow"))
parsedURL.query.insert_or_assign("shallow", "1");
return std::make_pair(
FlakeRef(Input::fromURL(parsedURL), get(parsedURL.query, "dir").value_or("")),
fragment);
}
if (pathExists(flakeRoot + "/.git/shallow"))
parsedURL.query.insert_or_assign("shallow", "1");
return std::make_pair(
FlakeRef(Input::fromURL(parsedURL), get(parsedURL.query, "dir").value_or("")),
fragment);
subdir = std::string(baseNameOf(flakeRoot)) + (subdir.empty() ? "" : "/" + subdir);
flakeRoot = dirOf(flakeRoot);
}
subdir = std::string(baseNameOf(flakeRoot)) + (subdir.empty() ? "" : "/" + subdir);
flakeRoot = dirOf(flakeRoot);
}
} else {