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claude-code: refactor wrapper to use append-flags

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Alternative approach suggested in
https://github.com/nix-community/home-manager/pull/8290#discussion_r2593114782

Signed-off-by: Austin Horstman <khaneliman12@gmail.com>
This commit is contained in:
Austin Horstman 2025-12-05 10:35:50 -06:00
parent 1a99a515a1
commit 519828bf1c
2 changed files with 14 additions and 14 deletions
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23
modules/programs/claude-code.nix
View file

@ -345,23 +345,24 @@ in
programs.claude-code.finalPackage =
let
mcpConfigFile = jsonFormat.generate "claude-code-mcp-config.json" {
inherit (cfg) mcpServers;
};
makeWrapperArgs = lib.flatten (
lib.filter (x: x != [ ]) [
(lib.optional (cfg.mcpServers != { }) [
"--append-flags"
"--mcp-config ${jsonFormat.generate "claude-code-mcp-config.json" { inherit (cfg) mcpServers; }}"
])
]
);
needsWrapper = cfg.mcpServers != { };
wrapperScript = pkgs.writeShellScriptBin "claude" ''
exec "${lib.getExe cfg.package}" "$@" --mcp-config "${mcpConfigFile}"
'';
hasWrapperArgs = makeWrapperArgs != [ ];
in
if needsWrapper then
if hasWrapperArgs then
pkgs.symlinkJoin {
name = "claude-code";
paths = [ cfg.package ];
nativeBuildInputs = [ pkgs.makeWrapper ];
postBuild = ''
rm $out/bin/claude
ln -s ${wrapperScript}/bin/claude $out/bin/claude
wrapProgram $out/bin/claude ${lib.escapeShellArgs makeWrapperArgs}
'';
inherit (cfg.package) meta;
}

5
tests/modules/programs/claude-code/expected-mcp-wrapper
View file

@ -1,3 +1,2 @@
#!/nix/store/00000000000000000000000000000000-bash/bin/bash
exec "/nix/store/00000000000000000000000000000000-claude-code/bin/claude-code" "$@" --mcp-config "/nix/store/00000000000000000000000000000000-claude-code-mcp-config.json"
#! /nix/store/00000000000000000000000000000000-bash/bin/bash -e
exec -a "$0" "/nix/store/00000000000000000000000000000000-claude-code/bin/.claude-wrapped" "$@" --mcp-config /nix/store/00000000000000000000000000000000-claude-code-mcp-config.json