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authorDaniel Schaefer <git@danielschaefer.me>2019-05-03T12·30+0200
committerDaniel Schaefer <git@danielschaefer.me>2019-05-03T15·23+0200
commit3f192ac80ca421888c668896b63485486e1397ae (patch)
tree128bbf3ee807b44498ac3cd256973a2bb455127a /tests/lang/eval-okay-hashfile.nix
parentf9a2ea44867cd1dbb408bca4df0ced806137b7f7 (diff)
Add builtins.hashFile
For text files it is possible to do it like so:
`builtins.hashString "sha256" (builtins.readFile /tmp/a)`
but that doesn't work for binary files.

With builtins.hashFile any kind of file can be conveniently hashed.
Diffstat (limited to 'tests/lang/eval-okay-hashfile.nix')
-rw-r--r--tests/lang/eval-okay-hashfile.nix4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/lang/eval-okay-hashfile.nix b/tests/lang/eval-okay-hashfile.nix
new file mode 100644
index 000000000000..aff5a1856814
--- /dev/null
+++ b/tests/lang/eval-okay-hashfile.nix
@@ -0,0 +1,4 @@
+let
+  paths = [ ./data ./binary-data ];
+in
+  builtins.concatLists (map (hash: map (builtins.hashFile hash) paths) ["md5" "sha1" "sha256" "sha512"])