ci: add auto pin script

hyprpm.toml

@@ -15,7 +15,8 @@ commit_pins = [
     ["f044e4c9514ec89c4c1fc8a523ca90b8cb907fb7", "070ca398300bf5b9e1a636ca057882c0312c228d"], # CMonitor* -> PHLMONITOR
     ["a425fbebe4cf4238e48a42f724ef2208959d66cf", "a86ed5581498186ed31241c0c246629ef771d1e6"], # v0.45.0
     ["500d2a3580388afc8b620b0a3624147faa34f98b", "cb929099477407116031010905ce439db771dd62"], # v0.45.1
-    ["12f9a0d0b93f691d4d9923716557154d74777b0a", "47f6fea6d297dbee8a9c5dea905783bde506fe79"], # v0.45.2
+["12f9a0d0b93f691d4d9923716557154d74777b0a", "cb929099477407116031010905ce439db771dd62"], # v0.45.2
+    ## DO NOT EDIT THIS LINE: for auto pin script ##
 ]
 
 [hyprgrass]

scripts/ci/latest-hyprland-tag

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+## Usage
+## -----
+## Prints the tag name of the latest Hyprland release
+
+# if anyone knows jq help me rewrite this
+gh release list --repo hyprwm/Hyprland --json tagName,isLatest | \
+    nix eval --impure --raw --expr 'with builtins; (head (filter (x: x.isLatest) (fromJSON (readFile /dev/stdin)))).tagName'

scripts/ci/pin-latest-hyprland

@@ -0,0 +1,57 @@
+#!/bin/sh
+
+set -eu
+
+usage() {
+    echoerr "Usage:"
+    echoerr ""
+    echoerr "    pin-latest-hyprland [HYPRGRASS_REV]"
+    echoerr ""
+    echoerr "Pins the latest hyprland release to HYPRGRASS_REV (default HEAD) in hyprpm.toml."
+    echoerr "Does nothing if a pin on the hyprland release already exists."
+}
+
+HYPRGRASS_REV=${1:-HEAD}
+
+echoerr() {
+    echo $@ >&2
+}
+
+findHyprpmPin() {
+    local hlCommit="$1"
+    nix eval --raw --impure --expr '
+        with builtins; let 
+            hyprpm = fromTOML (readFile ./hyprpm.toml);
+            hlCommits = map head hyprpm.repository.commit_pins;
+        in
+            concatStringsSep "\n" hlCommits
+    ' | grep "$hlCommit" > /dev/null
+}
+
+getHyprlandCommitFromRev() {
+    git ls-remote https://github.com/hyprwm/Hyprland.git "$1" \
+        | cut -f 1
+}
+
+SCRIPT_DIR="$(dirname "$0")"
+
+hlTag="$("$SCRIPT_DIR/latest-hyprland-tag")"
+echoerr "found latest Hyprland release: $hlTag"
+
+hlCommit="$(getHyprlandCommitFromRev "$hlTag")"
+echoerr "-> commit: $hlCommit"
+
+if findHyprpmPin "$hlCommit"; then
+    echoerr "pin for tag $hlTag already found in hyprpm.toml"
+    exit 0
+fi
+
+echoerr "building and testing..."
+commitPin="$("$SCRIPT_DIR/test-pin.sh" "$hlTag" "$HYPRGRASS_REV")"
+
+echoerr "pin tests passed: $commitPin"
+echoerr 'updating hyprpm.toml'
+
+sed -i "/## DO NOT EDIT THIS LINE: for auto pin script ##/ i    $commitPin" \
+    hyprpm.toml
+

scripts/test-pin.sh → scripts/ci/test-pin.sh

@@ -23,9 +23,7 @@ hyprgrassRev=${2:-main}
 hyprlandCommit="$(git ls-remote https://github.com/hyprwm/Hyprland.git "${hyprlandRev}" | cut -f 1)"
 hyprgrassCommit="$(git rev-parse "${hyprgrassRev}")"
 
-git stash
-git checkout "${hyprgrassRev}"
-nix build --no-link .#hyprgrassWithTests \
+nix build --no-link "git+file://$(pwd)?rev=${hyprgrassRev}#hyprgrassWithTests" \
 	--override-input hyprland "github:hyprwm/Hyprland/${hyprlandRev}" \
 
 echo "[\"${hyprlandCommit}\", \"${hyprgrassCommit}\"], # ${hyprlandRev}"