vim-patch:9.1.0325: CMakeCache.txt files not recognized (#28359)

vim-patch:9.1.0325: filetype: CMakeCache.txt files not recognized

Problem:  filetype: CMakeCache.txt files not recognized
Solution: Detect 'CMakeCache.txt' files as cmakecache filetype,
          include basic syntax script for cmakecache
          (Wu, Zhenyu, @bfrg)

closes: vim/vim#14384

https://github.com/vim/vim/commit/62c09e032c6b2d49fffac726300d142381924b98

Co-authored-by: Wu, Zhenyu <wuzhenyu@ustc.edu>
Co-authored-by: bfrg <bfrg@users.noreply.github.com>

3 files changed, 62 insertions, 0 deletions

diff --git a/runtime/lua/vim/filetype.lua b/runtime/lua/vim/filetype.lua
index 8b800cf859..d687d55fcf 100644
--- a/runtime/lua/vim/filetype.lua
+++ b/runtime/lua/vim/filetype.lua
@@ -1298,6 +1298,7 @@ local filename = {
   ['init.trans'] = 'clojure',
   ['.trans'] = 'clojure',
   ['CMakeLists.txt'] = 'cmake',
+  ['CMakeCache.txt'] = 'cmakecache',
   ['.cling_history'] = 'cpp',
   ['.alias'] = detect.csh,
   ['.cshrc'] = detect.csh,
diff --git a/runtime/syntax/cmakecache.vim b/runtime/syntax/cmakecache.vim
new file mode 100644
index 0000000000..f07c719811
--- /dev/null
+++ b/runtime/syntax/cmakecache.vim
@@ -0,0 +1,60 @@
+" Vim syntax file
+" Language:     cmakecache - CMakeCache.txt files generated by CMake
+" Author:       bfrg <https://github.com/bfrg>
+" Upstream:      https://github.com/bfrg/vim-cmakecache-syntax
+" Last Change:  Nov 28, 2019
+" License:      Same as Vim itself (see :h license)
+
+if exists('b:current_syntax')
+    finish
+endif
+
+let s:cpo_save = &cpoptions
+set cpoptions&vim
+
+" Comments start with # or //
+syntax region CMakeCacheComment start="#\|//" end="$"
+
+" Match 'key' in key:type=value
+syntax match CMakeCacheKey "^\s*\w\+\(-ADVANCED\)\=:"me=e-1
+
+" Highlight 'str' in key:STRING=str (many thanks to Nickspoons in #vim!)
+syntax region CMakeCacheStringVar   matchgroup=CMakeCacheType start=":STRING="ms=s+1,rs=e-1 end="$" contains=CMakeCacheString keepend
+syntax region CMakeCacheString      start="="ms=s+1 end="$" contained
+
+" Highlight boolean 'value' in key:BOOL=value
+syntax region CMakeCacheBoolVar     matchgroup=CMakeCacheType start=":BOOL="ms=s+1,rs=e-1 end="$" contains=CMakeCacheBool keepend
+syntax region CMakeCacheBool        start="="ms=s+1 end="$" contained
+
+" Highlight 'path' in key:PATH=path
+syntax region CMakeCachePathVar     matchgroup=CMakeCacheType start=":PATH="ms=s+1,rs=e-1 end="$" contains=CMakeCachePath keepend
+syntax region CMakeCachePath        start="="ms=s+1 end="$" contained
+
+" Highlight 'file' in key:FILEPATH=file
+syntax region CMakeCacheFilePathVar matchgroup=CMakeCacheType start=":FILEPATH="ms=s+1,rs=e-1 end="$" contains=CMakeCacheFilePath keepend
+syntax region CMakeCacheFilePath    start="="ms=s+1 end="$" contained
+
+" Highlight 'value' in key:STATIC=value
+syntax region CMakeCacheStaticVar   matchgroup=CMakeCacheType start=":STATIC="ms=s+1,rs=e-1 end="$" contains=CMakeCacheStatic keepend
+syntax region CMakeCacheStatic      start="="ms=s+1 end="$" contained
+
+" Highlight 'value' in key:Internal=value
+syntax region CMakeCacheInternalVar matchgroup=CMakeCacheType start=":INTERNAL="ms=s+1,rs=e-1 end="$" contains=CMakeCacheInternal keepend
+syntax region CMakeCacheInternal    start="="ms=s+1 end="$" contained
+
+hi def link CMakeCacheComment   Comment
+hi def link CMakeCacheKey       Identifier
+hi def link CMakeCacheString    String
+hi def link CMakeCacheBool      Constant
+hi def link CMakeCachePath      Directory
+hi def link CMakeCacheFilePath  Normal
+hi def link CMakeCacheStatic    Normal
+hi def link CMakeCacheInternal  Normal
+
+" Highlight 'type' in key:type=value
+hi def link CMakeCacheType      Type
+
+let b:current_syntax = 'cmakecache'
+
+let &cpoptions = s:cpo_save
+unlet s:cpo_save
diff --git a/test/old/testdir/test_filetype.vim b/test/old/testdir/test_filetype.vim
index e2fae52e1e..b07759ae9e 100644
--- a/test/old/testdir/test_filetype.vim
+++ b/test/old/testdir/test_filetype.vim
@@ -158,6 +158,7 @@ func s:GetFilenameChecks() abort
     \ 'clean': ['file.dcl', 'file.icl'],
     \ 'clojure': ['file.clj', 'file.cljs', 'file.cljx', 'file.cljc', 'init.trans', 'any/etc/translate-shell', '.trans'],
     \ 'cmake': ['CMakeLists.txt', 'file.cmake', 'file.cmake.in'],
+    \ 'cmakecache': ['CMakeCache.txt'],
     \ 'cmod': ['file.cmod'],
     \ 'cmusrc': ['any/.cmus/autosave', 'any/.cmus/rc', 'any/.cmus/command-history', 'any/.cmus/file.theme', 'any/cmus/rc', 'any/cmus/file.theme', '/.cmus/autosave', '/.cmus/command-history', '/.cmus/file.theme', '/.cmus/rc', '/cmus/file.theme', '/cmus/rc'],
     \ 'cobol': ['file.cbl', 'file.cob', 'file.lib'],