Added clang-tidy for C, too.
A limited number of clang-tidy checks can be used with C, too. I pretty much copied and refactored the C++ clang-tidy linter, and added some documentation about C-compatible checks.
This commit is contained in:
Andrej Radovic
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666cfc6ee2
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a767578d44
@ -61,7 +61,7 @@ name. That seems to be the fairest way to arrange this table.
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| Awk | [gawk](https://www.gnu.org/software/gawk/)|
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| Bash | [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/) |
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| Bourne Shell | [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/) |
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| C | [cppcheck](http://cppcheck.sourceforge.net), [gcc](https://gcc.gnu.org/), [clang](http://clang.llvm.org/)|
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| C | [cppcheck](http://cppcheck.sourceforge.net), [gcc](https://gcc.gnu.org/), [clang](http://clang.llvm.org/), [clangtidy](http://clang.llvm.org/extra/clang-tidy/)|
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| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html), [clangtidy](http://clang.llvm.org/extra/clang-tidy/), [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [gcc](https://gcc.gnu.org/)|
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| C# | [mcs](http://www.mono-project.com/docs/about-mono/languages/csharp/) |
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| Chef | [foodcritic](http://www.foodcritic.io/) |
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107
ale_linters/c/clangtidy.vim
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107
ale_linters/c/clangtidy.vim
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@ -0,0 +1,107 @@
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" Author: vdeurzen <tim@kompiler.org>, w0rp <devw0rp@gmail.com>,
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" gagbo <gagbobada@gmail.com>, Andrej Radovic <r.andrej@gmail.com>
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" Description: clang-tidy linter for c files
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call ale#Set('c_clangtidy_executable', 'clang-tidy')
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" Set this option to check the checks clang-tidy will apply.
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" The number of checks that can be applied to C files is limited in contrast to
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" C++
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"
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" Here is an incomplete list of C-compatible checks for clang-tidy version 6:
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" bugprone-suspicious-memset-usage
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" cert-env33-c
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" cert-err34-c
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" cert-flp30-c
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" google-runtime-int
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" llvm-header-guard
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" llvm-include-order
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" misc-argument-comment
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" misc-assert-side-effect
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" misc-bool-pointer-implicit-conversion
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" misc-definitions-in-headers
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" misc-incorrect-roundings
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" misc-macro-parentheses
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" misc-macro-repeated-side-effects
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" misc-misplaced-const
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" misc-misplaced-widening-cast
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" misc-multiple-statement-macro
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" misc-non-copyable-objects
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" misc-redundant-expression
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" misc-sizeof-expression
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" misc-static-assert
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" misc-string-literal-with-embedded-nul
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" misc-suspicious-enum-usage
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" misc-suspicious-missing-comma
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" misc-suspicious-semicolon
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" misc-suspicious-string-compare
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" misc-swapped-arguments
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" modernize-redundant-void-arg
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" modernize-use-bool-literals
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" performance-type-promotion-in-math-fn
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" readability-braces-around-statements
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" readability-else-after-return
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" readability-function-size
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" readability-identifier-naming
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" readability-implicit-bool-cast
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" readability-inconsistent-declaration-parameter-name
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" readability-misleading-indentation
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" readability-misplaced-array-index
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" readability-named-parameter
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" readability-non-const-parameter
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" readability-redundant-control-flow
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" readability-redundant-declaration
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" readability-redundant-function-ptr-dereference
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" readability-simplify-boolean-expr
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call ale#Set('c_clangtidy_checks', ['*'])
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" Set this option to manually set some options for clang-tidy.
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" This will disable compile_commands.json detection.
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call ale#Set('c_clangtidy_options', '')
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call ale#Set('c_build_dir', '')
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function! ale_linters#c#clangtidy#GetExecutable(buffer) abort
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return ale#Var(a:buffer, 'c_clangtidy_executable')
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endfunction
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function! s:GetBuildDirectory(buffer) abort
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" Don't include build directory for header files, as compile_commands.json
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" files don't consider headers to be translation units, and provide no
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" commands for compiling header files.
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if expand('#' . a:buffer) =~# '\v\.(h|hpp)$'
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return ''
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endif
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let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
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" c_build_dir has the priority if defined
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if !empty(l:build_dir)
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return l:build_dir
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endif
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return ale#c#FindCompileCommands(a:buffer)
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endfunction
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function! ale_linters#c#clangtidy#GetCommand(buffer) abort
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let l:checks = join(ale#Var(a:buffer, 'c_clangtidy_checks'), ',')
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let l:build_dir = s:GetBuildDirectory(a:buffer)
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" Get the extra options if we couldn't find a build directory.
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let l:options = empty(l:build_dir)
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\ ? ale#Var(a:buffer, 'c_clangtidy_options')
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\ : ''
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return ale#Escape(ale_linters#c#clangtidy#GetExecutable(a:buffer))
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\ . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
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\ . ' %s'
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\ . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
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\ . (!empty(l:options) ? ' -- ' . l:options : '')
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endfunction
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call ale#linter#Define('c', {
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\ 'name': 'clangtidy',
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\ 'output_stream': 'stdout',
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\ 'executable_callback': 'ale_linters#c#clangtidy#GetExecutable',
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\ 'command_callback': 'ale_linters#c#clangtidy#GetCommand',
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\ 'callback': 'ale#handlers#gcc#HandleGCCFormat',
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\ 'lint_file': 1,
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\})
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129
doc/ale-c.txt
129
doc/ale-c.txt
@ -2,6 +2,37 @@
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ALE C Integration *ale-c-options*
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===============================================================================
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Global Options
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g:ale_c_build_dir_names *g:ale_c_build_dir_names*
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*b:ale_c_build_dir_names*
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Type: |List|
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Default: `['build', 'bin']`
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A list of directory names to be used when searching upwards from cpp
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files to discover compilation databases with. For directory named `'foo'`,
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ALE will search for `'foo/compile_commands.json'` in all directories on and above
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the directory containing the cpp file to find path to compilation database.
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This feature is useful for the clang tools wrapped around LibTooling (namely
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here, clang-tidy)
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g:ale_c_build_dir *g:ale_c_build_dir*
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*b:ale_c_build_dir*
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Type: |String|
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Default: `''`
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A path to the directory containing the `compile_commands.json` file to use
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with c-family linters. Usually setting this option to a non-empty string
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will override the |g:ale_c_build_dir_names| option to impose a compilation
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database (it can be useful if multiple builds are in multiple build
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subdirectories in the project tree).
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This feature is also most useful for the clang tools linters, wrapped
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aroung LibTooling (namely clang-tidy here)
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===============================================================================
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clang *ale-c-clang*
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@ -21,6 +52,104 @@ g:ale_c_clang_options *g:ale_c_clang_options*
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This variable can be changed to modify flags given to clang.
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===============================================================================
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clangtidy *ale-c-clangtidy*
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`clang-tidy` will be run only when files are saved to disk, so that
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`compile_commands.json` files can be used. It is recommended to use this
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linter in combination with `compile_commands.json` files.
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Therefore, `clang-tidy` linter reads the options |g:ale_c_build_dir| and
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|g:ale_c_build_dir_names|. Also, setting |g:ale_c_build_dir| actually
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overrides |g:ale_c_build_dir_names|.
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g:ale_c_clangtidy_checks *g:ale_c_clangtidy_checks*
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*b:ale_c_clangtidy_checks*
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Type: |List|
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Default: `['*']`
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The checks to enable for clang-tidy with the `-checks` argument.
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All options will be joined with commas, and escaped appropriately for
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the shell. The `-checks` flag can be removed entirely by setting this
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option to an empty List.
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Not all of clangtidy checks are applicable for C. You should consult the
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clang documentation for an up-to-date list of compatible checks.
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Here's an (incomplete) list of C-compatible checks, for clang-tidy version 6:
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bugprone-suspicious-memset-usage
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cert-env33-c
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cert-err34-c
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cert-flp30-c
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google-runtime-int
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llvm-header-guard
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llvm-include-order
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misc-argument-comment
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misc-assert-side-effect
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misc-bool-pointer-implicit-conversion
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misc-definitions-in-headers
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misc-incorrect-roundings
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misc-macro-parentheses
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misc-macro-repeated-side-effects
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misc-misplaced-const
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misc-misplaced-widening-cast
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misc-multiple-statement-macro
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misc-non-copyable-objects
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misc-redundant-expression
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misc-sizeof-expression
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misc-static-assert
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misc-string-literal-with-embedded-nul
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misc-suspicious-enum-usage
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misc-suspicious-missing-comma
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misc-suspicious-semicolon
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misc-suspicious-string-compare
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misc-swapped-arguments
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modernize-redundant-void-arg
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modernize-use-bool-literals
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performance-type-promotion-in-math-fn
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readability-braces-around-statements
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readability-else-after-return
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readability-function-size
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readability-identifier-naming
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readability-implicit-bool-cast
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readability-inconsistent-declaration-parameter-name
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readability-misleading-indentation
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readability-misplaced-array-index
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readability-named-parameter
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readability-non-const-parameter
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readability-redundant-control-flow
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readability-redundant-declaration
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readability-redundant-function-ptr-dereference
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readability-simplify-boolean-expr
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g:ale_c_clangtidy_executable *g:ale_c_clangtidy_executable*
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*b:ale_c_clangtidy_executable*
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Type: |String|
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Default: `'clang-tidy'`
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This variable can be changed to use a different executable for clangtidy.
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g:ale_c_clangtidy_options *g:ale_c_clangtidy_options*
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*b:ale_c_clangtidy_options*
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Type: |String|
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Default: `''`
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This variable can be changed to modify flags given to clang-tidy.
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- Setting this variable to a non-empty string,
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- and working in a buffer where no compilation database is found using
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|g:ale_c_build_dir_names| or |g:ale_c_build_dir|,
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will cause the `--` argument to be passed to `clang-tidy`, which will mean
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that detection of `compile_commands.json` files for compile command
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databases will be disabled.
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Only set this option if you want to control compiler flags
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entirely manually, and no `compile_commands.json` file is in one
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of the |g:ale_c_build_dir_names| directories of the project tree.
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===============================================================================
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cppcheck *ale-c-cppcheck*
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@ -16,6 +16,7 @@ CONTENTS *ale-contents*
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gcc.................................|ale-asm-gcc|
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c.....................................|ale-c-options|
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clang...............................|ale-c-clang|
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clangtidy...........................|ale-c-clangtidy|
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cppcheck............................|ale-c-cppcheck|
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gcc.................................|ale-c-gcc|
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chef..................................|ale-chef-options|
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