[clang] c5d56fe - NFC: .clang-tidy: Inherit configs from parents to improve maintainability

[David Blaikie via cfe-commits]

Author: David Blaikie
Date: 2021-06-08T08:25:59-07:00
New Revision: c5d56fec502f36a0c994835ca23bc93a6c682d95

URL: https://github.com/llvm/llvm-project/commit/c5d56fec502f36a0c994835ca23bc93a6c682d95
DIFF: https://github.com/llvm/llvm-project/commit/c5d56fec502f36a0c994835ca23bc93a6c682d95.diff

LOG: NFC: .clang-tidy: Inherit configs from parents to improve maintainability

In the interests of disabling misc-no-recursion across LLVM (this seems
like a stylistic choice that is not consistent with LLVM's
style/development approach) this NFC preliminary change adjusts all the
.clang-tidy files to inherit from their parents as much as possible.

This change specifically preserves all the quirks of the current configs
in order to make it easier to review as NFC.

I validatad the change is NFC as follows:

for X in `cat ../files.txt`;
do
  mkdir -p ../tmp/$(dirname $X)
  touch $(dirname $X)/blaikie.cpp
  clang-tidy -dump-config $(dirname $X)/blaikie.cpp > ../tmp/$(dirname $X)/after
  rm $(dirname $X)/blaikie.cpp
done

(similarly for the "before" state, without this patch applied)

for X in `cat ../files.txt`;
do
  echo $X
  diff \
    ../tmp/$(dirname $X)/before \
    <(cat ../tmp/$(dirname $X)/after \
      | sed -e "s/,readability-identifier-naming\(.*\),-readability-identifier-naming/\1/" \
      | sed -e "s/,-llvm-include-order\(.*\),llvm-include-order/\1/" \
      | sed -e "s/,-misc-no-recursion\(.*\),misc-no-recursion/\1/" \
      | sed -e "s/,-clang-diagnostic-\*\(.*\),clang-diagnostic-\*/\1/")
done

(using sed to strip some add/remove pairs to reduce the diff and make it easier to read)

The resulting report is:
  .clang-tidy
  clang/.clang-tidy
  2c2
  < Checks:          'clang-diagnostic-*,clang-analyzer-*,-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-readability-identifier-naming,-misc-no-recursion'
  ---
  > Checks:          'clang-diagnostic-*,clang-analyzer-*,-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-misc-no-recursion'
  compiler-rt/.clang-tidy
  2c2
  < Checks:          'clang-diagnostic-*,clang-analyzer-*,-*,clang-diagnostic-*,llvm-*,-llvm-header-guard,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes'
  ---
  > Checks:          'clang-diagnostic-*,clang-analyzer-*,-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-llvm-header-guard'
  flang/.clang-tidy
  2c2
  < Checks:          'clang-diagnostic-*,clang-analyzer-*,-*,llvm-*,-llvm-include-order,misc-*,-misc-no-recursion,-misc-unused-parameters,-misc-non-private-member-variables-in-classes'
  ---
  > Checks:          'clang-diagnostic-*,clang-analyzer-*,-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-llvm-include-order,-misc-no-recursion'
  flang/include/flang/Lower/.clang-tidy
  flang/include/flang/Optimizer/.clang-tidy
  flang/lib/Lower/.clang-tidy
  flang/lib/Optimizer/.clang-tidy
  lld/.clang-tidy
  lldb/.clang-tidy
  llvm/tools/split-file/.clang-tidy
  mlir/.clang-tidy

The `clang/.clang-tidy` change is a no-op, disabling an option that was never enabled.
The compiler-rt and flang changes are no-op reorderings of the same flags.

(side note, the .clang-tidy file in parallel-libs is broken and crashes
clang-tidy because it uses "lowerCase" as the style instead of "lower_case" -
so I'll deal with that separately)

Differential Revision: https://reviews.llvm.org/D103842

Added: 
    

Modified: 
    clang/.clang-tidy
    compiler-rt/.clang-tidy
    flang/.clang-tidy
    flang/include/flang/Lower/.clang-tidy
    flang/include/flang/Optimizer/.clang-tidy
    flang/lib/Lower/.clang-tidy
    flang/lib/Optimizer/.clang-tidy
    lld/.clang-tidy
    lldb/.clang-tidy
    llvm/.clang-tidy
    llvm/tools/split-file/.clang-tidy
    mlir/.clang-tidy

Removed: 
    


################################################################################
diff  --git a/clang/.clang-tidy b/clang/.clang-tidy
index f517e9246cf85..ed155786f36ba 100644
--- a/clang/.clang-tidy
+++ b/clang/.clang-tidy
@@ -1,24 +1,5 @@
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-readability-identifier-naming,-misc-no-recursion'
 # Note that the readability-identifier-naming check is disabled, there are too
 # many violations in the codebase and they create too much noise in clang-tidy
 # results.
-# Naming settings are kept for documentation purposes and allowing to run the
-# check if the users would override this file, e.g. via a command-line arg.
-CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
-  - key:             readability-identifier-naming.MemberCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.ParameterCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.VariableCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1
-
+Checks: '-readability-identifier-naming,-misc-no-recursion'
+InheritParentConfig: true

diff  --git a/compiler-rt/.clang-tidy b/compiler-rt/.clang-tidy
index 4bad5ef216200..c7dba46ad7412 100644
--- a/compiler-rt/.clang-tidy
+++ b/compiler-rt/.clang-tidy
@@ -1,2 +1,2 @@
-# Checks enabled in the top-level .clang-tidy minus readability-identifier-naming and llvm-header-guard.
-Checks: '-*,clang-diagnostic-*,llvm-*,-llvm-header-guard,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes'
+Checks: '-readability-identifier-naming,-llvm-header-guard'
+InheritParentConfig: true

diff  --git a/flang/.clang-tidy b/flang/.clang-tidy
index be9a2b704edd0..c0d51c8dbf5dc 100644
--- a/flang/.clang-tidy
+++ b/flang/.clang-tidy
@@ -1 +1,2 @@
-Checks: '-*,llvm-*,-llvm-include-order,misc-*,-misc-no-recursion,-misc-unused-parameters,-misc-non-private-member-variables-in-classes'
+Checks: '-llvm-include-order,-readability-identifier-naming,-misc-no-recursion,-clang-diagnostic-*'
+InheritParentConfig: true

diff  --git a/flang/include/flang/Lower/.clang-tidy b/flang/include/flang/Lower/.clang-tidy
index 87ec2ff53af6e..d2b773fc4b121 100644
--- a/flang/include/flang/Lower/.clang-tidy
+++ b/flang/include/flang/Lower/.clang-tidy
@@ -1,19 +1,9 @@
-# Almost identical to the top-level .clang-tidy, except that {Member,Parameter,Variable}Case use camelBack.
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
+Checks: 'readability-identifier-naming,llvm-include-order,misc-no-recursion,clang-diagnostic-*'
+InheritParentConfig: true
 CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           camelBack
   - key:             readability-identifier-naming.ParameterCase
     value:           camelBack
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           camelBack
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1

diff  --git a/flang/include/flang/Optimizer/.clang-tidy b/flang/include/flang/Optimizer/.clang-tidy
index 87ec2ff53af6e..d2b773fc4b121 100644
--- a/flang/include/flang/Optimizer/.clang-tidy
+++ b/flang/include/flang/Optimizer/.clang-tidy
@@ -1,19 +1,9 @@
-# Almost identical to the top-level .clang-tidy, except that {Member,Parameter,Variable}Case use camelBack.
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
+Checks: 'readability-identifier-naming,llvm-include-order,misc-no-recursion,clang-diagnostic-*'
+InheritParentConfig: true
 CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           camelBack
   - key:             readability-identifier-naming.ParameterCase
     value:           camelBack
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           camelBack
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1

diff  --git a/flang/lib/Lower/.clang-tidy b/flang/lib/Lower/.clang-tidy
index 87ec2ff53af6e..d2b773fc4b121 100644
--- a/flang/lib/Lower/.clang-tidy
+++ b/flang/lib/Lower/.clang-tidy
@@ -1,19 +1,9 @@
-# Almost identical to the top-level .clang-tidy, except that {Member,Parameter,Variable}Case use camelBack.
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
+Checks: 'readability-identifier-naming,llvm-include-order,misc-no-recursion,clang-diagnostic-*'
+InheritParentConfig: true
 CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           camelBack
   - key:             readability-identifier-naming.ParameterCase
     value:           camelBack
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           camelBack
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1

diff  --git a/flang/lib/Optimizer/.clang-tidy b/flang/lib/Optimizer/.clang-tidy
index 87ec2ff53af6e..d2b773fc4b121 100644
--- a/flang/lib/Optimizer/.clang-tidy
+++ b/flang/lib/Optimizer/.clang-tidy
@@ -1,19 +1,9 @@
-# Almost identical to the top-level .clang-tidy, except that {Member,Parameter,Variable}Case use camelBack.
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
+Checks: 'readability-identifier-naming,llvm-include-order,misc-no-recursion,clang-diagnostic-*'
+InheritParentConfig: true
 CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           camelBack
   - key:             readability-identifier-naming.ParameterCase
     value:           camelBack
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           camelBack
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1

diff  --git a/lld/.clang-tidy b/lld/.clang-tidy
index 87ec2ff53af6e..acd9361b526d6 100644
--- a/lld/.clang-tidy
+++ b/lld/.clang-tidy
@@ -1,19 +1,8 @@
-# Almost identical to the top-level .clang-tidy, except that {Member,Parameter,Variable}Case use camelBack.
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
+InheritParentConfig: true
 CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           camelBack
   - key:             readability-identifier-naming.ParameterCase
     value:           camelBack
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           camelBack
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1

diff  --git a/lldb/.clang-tidy b/lldb/.clang-tidy
index e949902171e7f..53d48d5facdeb 100644
--- a/lldb/.clang-tidy
+++ b/lldb/.clang-tidy
@@ -1,2 +1,2 @@
-# Checks enabled in the top-level .clang-tidy minus readability-identifier-naming
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes'
+Checks: '-readability-identifier-naming'
+InheritParentConfig: true

diff  --git a/llvm/.clang-tidy b/llvm/.clang-tidy
index e7e0830cfec59..47bc73c13f192 100644
--- a/llvm/.clang-tidy
+++ b/llvm/.clang-tidy
@@ -1,19 +1 @@
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
-CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
-  - key:             readability-identifier-naming.MemberCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.ParameterCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.VariableCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1
-
+InheritParentConfig: true

diff  --git a/llvm/tools/split-file/.clang-tidy b/llvm/tools/split-file/.clang-tidy
index 87ec2ff53af6e..acd9361b526d6 100644
--- a/llvm/tools/split-file/.clang-tidy
+++ b/llvm/tools/split-file/.clang-tidy
@@ -1,19 +1,8 @@
-# Almost identical to the top-level .clang-tidy, except that {Member,Parameter,Variable}Case use camelBack.
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
+InheritParentConfig: true
 CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           camelBack
   - key:             readability-identifier-naming.ParameterCase
     value:           camelBack
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           camelBack
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1

diff  --git a/mlir/.clang-tidy b/mlir/.clang-tidy
index 87ec2ff53af6e..acd9361b526d6 100644
--- a/mlir/.clang-tidy
+++ b/mlir/.clang-tidy
@@ -1,19 +1,8 @@
-# Almost identical to the top-level .clang-tidy, except that {Member,Parameter,Variable}Case use camelBack.
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,readability-identifier-naming'
+InheritParentConfig: true
 CheckOptions:
-  - key:             readability-identifier-naming.ClassCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.EnumCase
-    value:           CamelCase
-  - key:             readability-identifier-naming.FunctionCase
-    value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           camelBack
   - key:             readability-identifier-naming.ParameterCase
     value:           camelBack
-  - key:             readability-identifier-naming.UnionCase
-    value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           camelBack
-  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
-    value:           1