Merge branch 'clippy-json'

2 files changed, 36 insertions, 2 deletions

diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py
index 24d917343..f6139127d 100644
--- a/mesonbuild/backend/ninjabackend.py
+++ b/mesonbuild/backend/ninjabackend.py
@@ -3947,6 +3947,28 @@ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47485'''))
         elem.add_dep(list(self.all_structured_sources))
         self.add_build(elem)
 
+    def generate_clippy_json_prereq(self) -> None:
+        if 'clippy-json-prereq' in self.all_outputs or not self.have_language('rust'):
+            return
+
+        elem = self.create_phony_target('clippy-json-prereq', 'CUSTOM_COMMAND', 'PHONY')
+        for crate in self.rust_crates.values():
+            if crate.crate_type in {'rlib', 'dylib', 'proc-macro'}:
+                elem.add_dep(crate.target_name)
+        elem.add_dep(list(self.all_structured_sources))
+        self.add_build(elem)
+
+    def generate_clippy_json(self) -> None:
+        if 'clippy-json' in self.all_outputs or not self.have_language('rust'):
+            return
+
+        cmd = self.environment.get_build_command() + \
+            ['--internal', 'clippy', self.environment.build_dir, '--error-format=json']
+        elem = self.create_phony_target('clippy-json', 'CUSTOM_COMMAND', 'PHONY')
+        elem.add_item('COMMAND', cmd)
+        elem.add_item('pool', 'console')
+        self.add_build(elem)
+
     def generate_rustdoc(self) -> None:
         if 'rustdoc' in self.all_outputs or not self.have_language('rust'):
             return
@@ -4036,6 +4058,8 @@ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47485'''))
         self.generate_clangformat()
         self.generate_clangtidy()
         self.generate_clippy()
+        self.generate_clippy_json_prereq()
+        self.generate_clippy_json()
         self.generate_rustdoc()
         self.generate_tags('etags', 'TAGS')
         self.generate_tags('ctags', 'ctags')
diff --git a/mesonbuild/scripts/clippy.py b/mesonbuild/scripts/clippy.py
index 0ea7a3429..519d3ab22 100644
--- a/mesonbuild/scripts/clippy.py
+++ b/mesonbuild/scripts/clippy.py
@@ -6,16 +6,18 @@ from collections import defaultdict
 import os
 import tempfile
 import typing as T
+import subprocess
 
 from .run_tool import run_tool_on_targets, run_with_buffered_output
 from .. import build, mlog
 from ..mesonlib import MachineChoice, PerMachine
+from ..tooldetect import detect_ninja
 
 if T.TYPE_CHECKING:
     from ..compilers.rust import RustCompiler
 
 class ClippyDriver:
-    def __init__(self, build: build.Build, tempdir: str):
+    def __init__(self, build: build.Build, tempdir: str, args: list[str]):
         self.tools: PerMachine[T.List[str]] = PerMachine([], [])
         self.warned: T.DefaultDict[str, bool] = defaultdict(lambda: False)
         self.tempdir = tempdir
@@ -24,6 +26,7 @@ class ClippyDriver:
             if 'rust' in compilers:
                 compiler = T.cast('RustCompiler', compilers['rust'])
                 self.tools[machine] = compiler.get_rust_tool('clippy-driver')
+        self.args = args
 
     def warn_missing_clippy(self, machine: str) -> None:
         if self.warned[machine]:
@@ -67,10 +70,17 @@ class ClippyDriver:
                 cmdlist.append('metadata')
                 cmdlist.append('--out-dir')
                 cmdlist.append(self.tempdir)
+                cmdlist += self.args
                 yield run_with_buffered_output(cmdlist)
 
 def run(args: T.List[str]) -> int:
     os.chdir(args[0])
     build_data = build.load(os.getcwd())
+
+    # Build as much of the project as possible, or else
+    # we get errors about missing libraries in the build directory and
+    # other related errors.
+    subprocess.run(detect_ninja() + ['clippy-json-prereq', '-k0'])
+
     with tempfile.TemporaryDirectory() as d:
-        return run_tool_on_targets(ClippyDriver(build_data, d))
+        return run_tool_on_targets(ClippyDriver(build_data, d, args[1:]))