diff options
Diffstat (limited to 'src/libexpr/flake/flakeref.cc')
| -rw-r--r-- | src/libexpr/flake/flakeref.cc | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/libexpr/flake/flakeref.cc b/src/libexpr/flake/flakeref.cc index c3b74e0fe..930ed9ccd 100644 --- a/src/libexpr/flake/flakeref.cc +++ b/src/libexpr/flake/flakeref.cc @@ -122,6 +122,28 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment( if (isFlake) { + if (!allowMissing && !pathExists(path + "/flake.nix")){ + notice("path '%s' does not contain a 'flake.nix', searching up",path); + + // Save device to detect filesystem boundary + dev_t device = lstat(path).st_dev; + bool found = false; + while (path != "/") { + if (pathExists(path + "/flake.nix")) { + found = true; + break; + } else if (pathExists(path + "/.git")) + throw Error("path '%s' is not part of a flake (neither it nor its parent directories contain a 'flake.nix' file)", path); + else { + if (lstat(path).st_dev != device) + throw Error("unable to find a flake before encountering filesystem boundary at '%s'", path); + } + path = dirOf(path); + } + if (!found) + throw BadURL("could not find a flake.nix file"); + } + if (!S_ISDIR(lstat(path).st_mode)) throw BadURL("path '%s' is not a flake (because it's not a directory)", path); |