build-support: Add fetchfossil function.

This is a dead-simple fetcher which clones a Fossil repository, opens it directly into $out, and then nicks out the single Fossil checkout marker.
2016-08-18 22:29:30 -07:00
parent c89959e625
commit 20a0e2e3bf
3 changed files with 44 additions and 0 deletions
@@ -0,0 +1,21 @@
+{stdenv, fossil}:
+
+{name ? null, url, rev ? null, md5 ? null, sha256 ? null}:
+
+# TODO: statically check if mercurial as the https support if the url starts woth https.
+stdenv.mkDerivation {
+  name = "fossil-archive" + (if name != null then "-${name}" else "");
+  builder = ./builder.sh;
+  buildInputs = [fossil];
+
+  impureEnvVars = [
+    "http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy"
+  ];
+
+  outputHashAlgo = if md5 != null then "md5" else "sha256";
+  outputHashMode = "recursive";
+  outputHash = if md5 != null then md5 else sha256;
+
+  inherit url rev;
+  preferLocalBuild = true;
+}