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feat(nix/sparseTree): allow specifying subtrees as relative paths

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Passed strings will be treated as a relative path below the given root,
which is quite convenient when using depot.path by eliminating a lot of
repetition.

Change-Id: I3da6058094484f4a6ffbb84f89ad4472b502a00c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3704
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
This commit is contained in:
sterni 2021-10-09 16:48:14 +02:00
parent 04f7cc3880
commit 2397fd8d56
2 changed files with 20 additions and 12 deletions
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12
nix/sparseTree/default.nix
View file

@ -14,6 +14,9 @@
root:
# list of paths below `root` that should be
# included in the resulting directory
#
# If path, need to refer to the actual file / directory to be included.
# If a string, it is treated as a string relative to the root.
paths:
let
@ -40,8 +43,13 @@ let
# a leading slash. Additionally some sanity checking is done.
makeSymlink = path:
let
strPath = toString path;
contextPath = "${path}";
withLeading = p: if builtins.substring 0 1 p == "/" then p else "/" + p;
fullPath =
/**/ if builtins.isPath path then path
else if builtins.isString path then (root + withLeading path)
else builtins.throw "Unsupported path type ${builtins.typeOf path}";
strPath = toString fullPath;
contextPath = "${fullPath}";
belowRoot = builtins.substring rootLength (-1) strPath;
prefix = builtins.substring 0 rootLength strPath;
in assert toString root == prefix; {

20
web/bubblegum/default.nix
View file

@ -12,20 +12,20 @@ let
minimalDepot = sparseTree depot.path [
# general depot things
(depot.path + "/default.nix")
(depot.path + "/nix/readTree")
"default.nix"
"nix/readTree"
# nixpkgs for lib and packages
(depot.path + "/third_party/nixpkgs")
(depot.path + "/third_party/overlays")
"third_party/nixpkgs"
"third_party/overlays"
# bubblegum and its dependencies
(depot.path + "/web/bubblegum")
(depot.path + "/nix/runExecline")
(depot.path + "/nix/utils")
(depot.path + "/nix/sparseTree")
"web/bubblegum"
"nix/runExecline"
"nix/utils"
"nix/sparseTree"
# tvix docs for svg demo
(depot.path + "/tvix/docs")
"tvix/docs"
# for blog.nix
(depot.path + "/users/sterni/nix")
"users/sterni/nix"
];
statusCodes = {