From a8225a5e9f9954cd30c97982c66a7d7008e26595 Mon Sep 17 00:00:00 2001
From: Gregor Zeitlinger <gregor.zeitlinger@grafana.com>
Date: Fri, 20 Mar 2026 13:25:03 +0100
Subject: [PATCH 1/3] ci: add lint meta-task, fix, and pre-commit hook

Bump flint to v0.9.1. Add lint:spotless wrapping spotlessCheck, a
lint meta-task that runs links + markdown + spotless in parallel,
a fix task (spotlessApply + markdownlint --fix), and a pre-commit
hook via mise generate.
Signed-off-by: Gregor Zeitlinger <gregor.zeitlinger@grafana.com>
---
 mise.toml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/mise.toml b/mise.toml
index 82dea8939279..92220aeaf1a8 100644
--- a/mise.toml
+++ b/mise.toml
@@ -16,3 +16,22 @@ use_file_shell_for_executable_tasks = true
 [tasks."lint:links"]
 description = "Check for broken links in changed files + all local links"
 file = "https://raw.githubusercontent.com/grafana/flint/8a39d96e17327c54974623b252eb5260d67ed68a/tasks/lint/links.sh" # v0.9.1
+
+[tasks."lint:spotless"]
+description = "Check Java formatting with Spotless"
+run = "./gradlew spotlessCheck"
+
+[tasks.lint]
+description = "Run all lints"
+depends = ["lint:links", "lint:markdown", "lint:spotless"]
+
+[tasks.fix]
+description = "Auto-fix lint issues"
+run = ["./gradlew spotlessApply", "mise run lint:markdown -- --fix"]
+
+[tasks.pre-commit]
+description = "Pre-commit hook: lint changed files"
+depends = ["lint"]
+[tasks."setup:pre-commit-hook"]
+description = "Install git pre-commit hook"
+run = "mise generate git-pre-commit --write --task=pre-commit"

From 23d74db656b4aff695f224b84f65273da1548440 Mon Sep 17 00:00:00 2001
From: Gregor Zeitlinger <gregor.zeitlinger@grafana.com>
Date: Fri, 20 Mar 2026 15:40:46 +0000
Subject: [PATCH 2/3] use google-java-format native binary instead of Gradle
 spotless for local lint

Replaces the slow Gradle-based spotlessCheck/spotlessApply (~5min) with
google-java-format native binary (~42ms) for changed files only.
CI still runs the full spotlessCheck via Gradle.
---
 mise.toml | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/mise.toml b/mise.toml
index 92220aeaf1a8..caaa38b78819 100644
--- a/mise.toml
+++ b/mise.toml
@@ -1,6 +1,7 @@
 [tools]
 lychee = "0.23.0"
 markdownlint-cli2 = "0.22.0"
+"ubi:google/google-java-format" = "1.34.1"
 
 [settings]
 # Only install tools explicitly defined in the [tools] section above
@@ -17,17 +18,33 @@ use_file_shell_for_executable_tasks = true
 description = "Check for broken links in changed files + all local links"
 file = "https://raw.githubusercontent.com/grafana/flint/8a39d96e17327c54974623b252eb5260d67ed68a/tasks/lint/links.sh" # v0.9.1
 
-[tasks."lint:spotless"]
-description = "Check Java formatting with Spotless"
-run = "./gradlew spotlessCheck"
+[tasks."lint:java"]
+description = "Check Java formatting and license headers (changed files only)"
+run = """
+files=$(git diff --name-only --diff-filter=d origin/main...HEAD -- '*.java')
+[ -z "$files" ] && exit 0
+failed=0
+for f in $files; do
+  if ! head -4 "$f" | grep -q "SPDX-License-Identifier: Apache-2.0"; then
+    echo "Missing license header: $f"
+    failed=1
+  fi
+done
+google-java-format --dry-run --set-exit-if-changed $files || failed=1
+exit $failed
+"""
 
 [tasks.lint]
 description = "Run all lints"
-depends = ["lint:links", "lint:markdown", "lint:spotless"]
+depends = ["lint:links", "lint:markdown", "lint:java"]
 
 [tasks.fix]
 description = "Auto-fix lint issues"
-run = ["./gradlew spotlessApply", "mise run lint:markdown -- --fix"]
+run = """
+files=$(git diff --name-only --diff-filter=d origin/main...HEAD -- '*.java')
+[ -n "$files" ] && google-java-format -i $files
+mise run lint:markdown -- --fix
+"""
 
 [tasks.pre-commit]
 description = "Pre-commit hook: lint changed files"

From a46df34a0c3115b9ae4932b192554d277c8b8c35 Mon Sep 17 00:00:00 2001
From: Gregor Zeitlinger <gregor.zeitlinger@grafana.com>
Date: Fri, 20 Mar 2026 17:56:33 +0000
Subject: [PATCH 3/3] Rename fix task to lint:fix

---
 mise.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mise.toml b/mise.toml
index caaa38b78819..9b7585b3d499 100644
--- a/mise.toml
+++ b/mise.toml
@@ -38,7 +38,7 @@ exit $failed
 description = "Run all lints"
 depends = ["lint:links", "lint:markdown", "lint:java"]
 
-[tasks.fix]
+[tasks."lint:fix"]
 description = "Auto-fix lint issues"
 run = """
 files=$(git diff --name-only --diff-filter=d origin/main...HEAD -- '*.java')