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-rw-r--r--nixpkgs/pkgs/build-support/fetchmtn/default.nix25
1 files changed, 25 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/build-support/fetchmtn/default.nix b/nixpkgs/pkgs/build-support/fetchmtn/default.nix
new file mode 100644
index 000000000000..4aa134242aa7
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/fetchmtn/default.nix
@@ -0,0 +1,25 @@
+# You can specify some extra mirrors and a cache DB via options
+{lib, stdenvNoCC, monotone, defaultDBMirrors ? [], cacheDB ? "./mtn-checkout.db"}:
+# dbs is a list of strings
+# each is an url for sync
+
+# selector is mtn selector, like h:org.example.branch
+#
+{name ? "mtn-checkout", dbs ? [], sha256
+, selector ? "h:" + branch, branch}:
+
+stdenvNoCC.mkDerivation {
+  builder = ./builder.sh;
+  nativeBuildInputs = [monotone];
+
+  outputHashAlgo = "sha256";
+  outputHashMode = "recursive";
+  outputHash = sha256;
+
+  dbs = defaultDBMirrors ++ dbs;
+  inherit branch cacheDB name selector;
+
+  impureEnvVars = lib.fetchers.proxyImpureEnvVars;
+
+}
+