Add missing SPDX-License-Identifier headers

steve-downey · steve-downey · commit 1d4400ef0282 · 2026-07-10T10:18:51.000-04:00
The Beman Standard's [file.license_id] check requires an SPDX header
in the first 25 lines of every commentable file. Add the project's
Apache-2.0 WITH LLVM-exception identifier to the CMake toolchain
files, GitHub workflow/dependabot configs, and the remaining
example/paper source files that were missing it.
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 # To get started with Dependabot version updates, you'll need to specify which
 # package ecosystems to update and where the package manifests are located.
 # Please see the documentation for all configuration options:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 ---
 # For most projects, this workflow file will not need changing; you simply need
 # to commit it to your repository.
diff --git a/.github/workflows/doxygen-gh-pages.yml b/.github/workflows/doxygen-gh-pages.yml
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 name: Doxygen GitHub Pages Deploy Action
 
 on:
diff --git a/.github/workflows/ossf-scorecard-analysis.yml b/.github/workflows/ossf-scorecard-analysis.yml
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 name: Scorecard analysis workflow
 on:
   push:
diff --git a/cmake/ci-clang-toolchain.cmake b/cmake/ci-clang-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/ci-clang-toolchain.cmake                              -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER clang)
diff --git a/cmake/clang-16-toolchain.cmake b/cmake/clang-16-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/clang-16-toolchain.cmake                              -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER clang-16)
diff --git a/cmake/clang-17-toolchain.cmake b/cmake/clang-17-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/clang-17-toolchain.cmake                              -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER clang-17)
diff --git a/cmake/clang-18-toolchain.cmake b/cmake/clang-18-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/clang-18-toolchain.cmake                              -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER clang-18)
diff --git a/cmake/clang-19-toolchain.cmake b/cmake/clang-19-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/clang-19-toolchain.cmake                              -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER clang-19)
diff --git a/cmake/clang-flags.cmake b/cmake/clang-flags.cmake
@@ -1,3 +1,6 @@
+# cmake/clang-flags.cmake                                     -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_CXX_STANDARD 20)
diff --git a/cmake/gcc-12-toolchain.cmake b/cmake/gcc-12-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/gcc-12-toolchain.cmake                                -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gcc-flags.cmake")
diff --git a/cmake/gcc-13-toolchain.cmake b/cmake/gcc-13-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/gcc-13-toolchain.cmake                                -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gcc-flags.cmake")
diff --git a/cmake/gcc-14-toolchain.cmake b/cmake/gcc-14-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/gcc-14-toolchain.cmake                                -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gcc-flags.cmake")
diff --git a/cmake/gcc-15-toolchain.cmake b/cmake/gcc-15-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/gcc-15-toolchain.cmake                                -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gcc-flags.cmake")
diff --git a/cmake/gcc-16-toolchain.cmake b/cmake/gcc-16-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/gcc-16-toolchain.cmake                                -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gcc-flags.cmake")
diff --git a/cmake/gcc-flags.cmake b/cmake/gcc-flags.cmake
@@ -1,3 +1,6 @@
+# cmake/gcc-flags.cmake                                       -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_CXX_STANDARD 26)
diff --git a/cmake/gcc-toolchain.cmake b/cmake/gcc-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/gcc-toolchain.cmake                                   -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER gcc)
diff --git a/cmake/llvm-16-toolchain.cmake b/cmake/llvm-16-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/llvm-16-toolchain.cmake                               -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER clang-16)
diff --git a/cmake/llvm-master-toolchain.cmake b/cmake/llvm-master-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/llvm-master-toolchain.cmake                           -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 set(LLVM_ROOT "$ENV{LLVM_ROOT}" CACHE PATH "Path to LLVM installation")
 
 set(CMAKE_C_COMPILER ${LLVM_ROOT}/bin/clang)
diff --git a/cmake/llvm-toolchain.cmake b/cmake/llvm-toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/llvm-toolchain.cmake                                  -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 set(CMAKE_C_COMPILER clang-14)
diff --git a/cmake/toolchain.cmake b/cmake/toolchain.cmake
@@ -1,3 +1,6 @@
+# cmake/toolchain.cmake                                       -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 include_guard(GLOBAL)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gcc-flags.cmake")
diff --git a/cmake/use-fetch-content.cmake b/cmake/use-fetch-content.cmake
@@ -1,3 +1,6 @@
+# cmake/use-fetch-content.cmake                               -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 cmake_minimum_required(VERSION 3.24)
 
 include(FetchContent)
diff --git a/cmake/x64-linux-custom.cmake b/cmake/x64-linux-custom.cmake
@@ -1,3 +1,6 @@
+# cmake/x64-linux-custom.cmake                                -*-cmake-*-
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 set(VCPKG_TARGET_ARCHITECTURE x64)
 set(VCPKG_CRT_LINKAGE dynamic)
 set(VCPKG_LIBRARY_LINKAGE static)
diff --git a/examples/expected.cpp b/examples/expected.cpp
@@ -1,4 +1,5 @@
 // examples/expected.cpp                                              -*-C++-*-
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 #include <beman/expected/expected.hpp>
 
 int main(int /*argc*/, char** /*argv*/) { return 0; }
diff --git a/papers/wg21-latex/implementation.hpp b/papers/wg21-latex/implementation.hpp
@@ -1,3 +1,5 @@
+// papers/wg21-latex/implementation.hpp                                -*-C++-*-
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // ----------------------
 // BASE AND DETAILS ELIDED
 // ----------------------
diff --git a/papers/wg21-latex/ldiff.sh b/papers/wg21-latex/ldiff.sh
@@ -1,4 +1,5 @@
 #!/bin/env sh
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 export SAFECMDS=Rplus,Cpp,CppIII,opt,shl,shr,dcr,exor,bigoh,tilde,bitand,bitor,xor,rightshift,enternote,enterexample,exitexample,required,requires,effects,postconditions,postcondition,preconditions,precondition,returns,throws,default,complexity,remark,remarks,note,notes,realnote,realnotes,errors,sync,implimits,replaceable,exceptionsafety,returntype,cvalue,ctype,ctypes,dtype,ctemplate,templalias,xref,xsee,ntbs,ntmbs,ntwcs,ntcxvis,ntcxxxiis,expos,impdef,notdef,unspec,unspecbool,seebelow,unspecuniqtype,unspecalloctype,unun,change,rationale,effect,difficulty,howwide,uniquens,cv,seebelow
 

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception`
`1`	`2`	`# To get started with Dependabot version updates, you'll need to specify which`
`2`	`3`	`# package ecosystems to update and where the package manifests are located.`
`3`	`4`	`# Please see the documentation for all configuration options:`
Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception`
`1`	`2`	`---`
`2`	`3`	`# For most projects, this workflow file will not need changing; you simply need`
`3`	`4`	`# to commit it to your repository.`
Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception`
`1`	`2`	`name: Doxygen GitHub Pages Deploy Action`
`2`	`3`
`3`	`4`	`on:`
Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception`
`1`	`2`	`name: Scorecard analysis workflow`
`2`	`3`	`on:`
`3`	`4`	`push:`