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chore(packages): bump llama-cpp to HEAD 20260519

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Update llama-cpp from tagged release b9196 to HEAD build dated
2026-05-19 (rev b28a2f37). Switch to date-based versioning for HEAD
builds and update source/webui hashes.

Also clarify update-package-hashes skill: always use lib.fakeHash
instead of literal sha256 placeholder strings.
This commit is contained in:
Evan Reichard
2026-05-19 20:44:30 -04:00
parent 964b0dd2a1
commit a7941db240
2 changed files with 8 additions and 5 deletions
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2
.agents/skills/update-package-hashes/SKILL.md
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@@ -49,7 +49,7 @@ grep -E '^[[:space:]]*got:' /tmp/hash.log | tail -1 | awk '{print $2}'
Default to `.diff`. Only fall back to `.patch` if you specifically need authorship metadata (rare for Nix patching). If a previously-working `.patch` URL suddenly fails to apply, switching to `.diff` is the first thing to try. Default to `.diff`. Only fall back to `.patch` if you specifically need authorship metadata (rare for Nix patching). If a previously-working `.patch` URL suddenly fails to apply, switching to `.diff` is the first thing to try.
Setting the hash to `lib.fakeHash` (preferred when `lib` is in scope), `sha256-AAAA...` (44 A's), or leaving the old one in place all work — the build will fail at the FOD with `got: sha256-...` which is the correct value. Always use `lib.fakeHash` (or `pkgs.lib.fakeHash` if only `pkgs` is in scope). This is the only reliable way to set a bogus hash — never write a literal `sha256-...` placeholder string. The build will fail at the FOD with `got: sha256-...` which is the correct value.
**Note:** `.src`, `.goModules`, etc. are sub-attributes of the derivation. They download but do not compile. `nix build .#<name>` (without the `.src` suffix) compiles — never do that. **Note:** `.src`, `.goModules`, etc. are sub-attributes of the derivation. They download but do not compile. `nix build .#<name>` (without the `.src` suffix) compiles — never do that.

11
packages/llama-cpp/default.nix
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@@ -1,12 +1,15 @@
{ pkgs }: { pkgs }:
let let
version = "9196"; # Version MUST be an integer string.
# For tagged releases use the tag number (e.g. "9222").
# For HEAD builds use YYYYMMDD (e.g. "20260519").
version = "20260519";
src = pkgs.fetchFromGitHub { src = pkgs.fetchFromGitHub {
owner = "ggml-org"; owner = "ggml-org";
repo = "llama.cpp"; repo = "llama.cpp";
tag = "b${version}"; rev = "b28a2f372a4a470a90ad10f93654e5dc33e78949";
hash = "sha256-JOxA7cOoAlQ7It6ogb3Kj2z725b96fkd8jzlvlep3ZU="; hash = "sha256-SXOpTS3q5Vaik76fg2WQ1mmwAk9+KSMdLe4AErQQlOA=";
leaveDotGit = true; leaveDotGit = true;
postFetch = '' postFetch = ''
git -C "$out" rev-parse --short HEAD > $out/COMMIT git -C "$out" rev-parse --short HEAD > $out/COMMIT
@@ -27,7 +30,7 @@ let
name = "llama-webui-${version}-npm-deps"; name = "llama-webui-${version}-npm-deps";
inherit src; inherit src;
sourceRoot = "${src.name}/tools/ui"; sourceRoot = "${src.name}/tools/ui";
hash = "sha256-WaEePrEZ7O/7deP2KJhe0AwiSKYA8HOqETmMHUkmBe0="; hash = "sha256-Iyg8FpcTKf2UYHuK7mA3cTAqVaLcQPcS0YCa5Qf01Gc=";
}; };
webui = pkgs.buildNpmPackage { webui = pkgs.buildNpmPackage {