ccls/src/config.h
2019-10-24 18:37:35 -07:00

273 lines
11 KiB
C++

// Copyright 2017-2018 ccls Authors
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "serializer.h"
#include <string>
/*
The language client plugin needs to send initialization options in the
`initialize` request to the ccls language server.
If necessary, the command line option --init can be used to override
initialization options specified by the client. For example, in shell syntax:
'--init={"index": {"comments": 2, "whitelist": ["."]}}'
*/
struct Config {
// Root directory of the project. **Not available for configuration**
std::string projectRoot;
// If specified, this option overrides compile_commands.json and this
// external command will be executed with an option |projectRoot|.
// The initialization options will be provided as stdin.
// The stdout of the command should be the JSON compilation database.
std::string compilationDatabaseCommand;
// Directory containing compile_commands.json.
std::string compilationDatabaseDirectory;
// Cache directory for indexed files, either absolute or relative to the
// project root.
// If empty, cache will be stored in memory.
std::string cacheDirectory = ".ccls-cache";
// Cache serialization format.
//
// "json" generates `cacheDirectory/.../xxx.json` files which can be pretty
// printed with jq.
//
// "binary" uses a compact binary serialization format.
// It is not schema-aware and you need to re-index whenever an internal struct
// member has changed.
SerializeFormat cacheFormat = SerializeFormat::Binary;
struct Clang {
// Arguments that should be excluded, e.g. ["-fopenmp", "-Wall"]
//
// e.g. If your project is built by GCC and has an option thag clang does not understand.
std::vector<std::string> excludeArgs;
// Additional arguments to pass to clang.
std::vector<std::string> extraArgs;
// Translate absolute paths in compile_commands.json entries, .ccls options
// and cache files. This allows to reuse cache files built otherwhere if the
// source paths are different.
//
// This is a list of colon-separated strings, e.g. ["/container:/host"]
//
// An entry of "clang -I /container/include /container/a.cc" will be
// translated to "clang -I /host/include /host/a.cc". This is simple string
// replacement, so "clang /prefix/container/a.cc" will become "clang
// /prefix/host/a.cc".
std::vector<std::string> pathMappings;
// Value to use for clang -resource-dir if not specified.
//
// This option defaults to clang -print-resource-dir and should not be
// specified unless you are using an esoteric configuration.
std::string resourceDir;
} clang;
struct ClientCapability {
// TextDocumentClientCapabilities.documentSymbol.hierarchicalDocumentSymbolSupport
bool hierarchicalDocumentSymbolSupport = true;
// TextDocumentClientCapabilities.completion.completionItem.snippetSupport
bool snippetSupport = true;
} client;
struct CodeLens {
// Enables code lens on parameter and function variables.
bool localVariables = true;
} codeLens;
struct Completion {
// 0: case-insensitive
// 1: case-folded, i.e. insensitive if no input character is uppercase.
// 2: case-sensitive
int caseSensitivity = 2;
// Some completion UI, such as Emacs' completion-at-point and company-lsp,
// display completion item label and detail side by side.
// This does not look right, when you see things like:
// "foo" "int foo()"
// "bar" "void bar(int i = 0)"
// When this option is enabled, the completion item label is very detailed,
// it shows the full signature of the candidate.
// The detail just contains the completion item parent context.
bool detailedLabel = true;
// On large projects, completion can take a long time. By default if ccls
// receives multiple completion requests while completion is still running
// it will only service the newest request. If this is set to false then all
// completion requests will be serviced.
bool dropOldRequests = true;
// Functions with default arguments, generate one more item per default
// argument. That is, you get something like:
// "int foo()" "Foo"
// "void bar()" "Foo"
// "void bar(int i = 0)" "Foo"
// Be wary, this is quickly quite verbose,
// items can end up truncated by the UIs.
bool duplicateOptional = true;
// If true, filter and sort completion response. ccls filters and sorts
// completions to try to be nicer to clients that can't handle big numbers
// of completion candidates. This behaviour can be disabled by specifying
// false for the option. This option is the most useful for LSP clients
// that implement their own filtering and sorting logic.
bool filterAndSort = true;
// Regex patterns to match include completion candidates against. They
// receive the absolute file path.
//
// For example, to hide all files in a /CACHE/ folder, use ".*/CACHE/.*"
std::vector<std::string> includeBlacklist;
// Maximum path length to show in completion results. Paths longer than this
// will be elided with ".." put at the front. Set to 0 or a negative number
// to disable eliding.
int includeMaxPathSize = 30;
// Whitelist that file paths will be tested against. If a file path does not
// end in one of these values, it will not be considered for
// auto-completion. An example value is { ".h", ".hpp" }
//
// This is significantly faster than using a regex.
std::vector<std::string> includeSuffixWhitelist = {".h", ".hpp", ".hh", ".inc"};
std::vector<std::string> includeWhitelist;
} completion;
struct Diagnostics {
// Like index.{whitelist,blacklist}, don't publish diagnostics to
// blacklisted files.
std::vector<std::string> blacklist;
// Time to wait before computing diagnostics for textDocument/didChange.
// -1: disable diagnostics on change
// 0: immediately
// positive (e.g. 500): wait for 500 milliseconds. didChange requests in
// this period of time will only cause one computation.
int onChange = 1000;
// Time to wait before computing diagnostics for textDocument/didOpen.
int onOpen = 0;
// Time to wait before computing diagnostics for textDocument/didSave.
int onSave = 0;
bool spellChecking = true;
std::vector<std::string> whitelist;
} diagnostics;
// Semantic highlighting
struct Highlight {
// true: LSP line/character; false: position
bool lsRanges = false;
// Like index.{whitelist,blacklist}, don't publish semantic highlighting to
// blacklisted files.
std::vector<std::string> blacklist;
std::vector<std::string> whitelist;
} highlight;
struct Index {
// If a translation unit's absolute path matches any EMCAScript regex in the
// whitelist, or does not match any regex in the blacklist, it will be
// indexed. To only index files in the whitelist, add ".*" to the blacklist.
// `std::regex_search(path, regex, std::regex_constants::match_any)`
//
// Example: `ash/.*\.cc`
std::vector<std::string> blacklist;
// 0: none, 1: Doxygen, 2: all comments
// Plugin support for clients:
// - https://github.com/emacs-lsp/lsp-ui
// - https://github.com/autozimu/LanguageClient-neovim/issues/224
int comments = 2;
// If false, the indexer will be disabled.
bool enabled = true;
// By default, all project entries will be indexed on initialization. Use
// these two options to exclude some. They can still be indexed after you
// open them.
std::vector<std::string> initialBlacklist;
std::vector<std::string> initialWhitelist;
// If not 0, a file will be indexed in each tranlation unit that includes it.
int multiVersion = 0;
// If multiVersion != 0, files that match blacklist but not whitelist will
// still only be indexed for one version.
std::vector<std::string> multiVersionBlacklist;
std::vector<std::string> multiVersionWhitelist;
// Allow indexing on textDocument/didChange.
// May be too slow for big projects, so it is off by default.
bool onChange = false;
// Number of indexer threads. If 0, 80% of cores are used.
int threads = 0;
// Whether to reparse a file if write times of its dependencies have
// changed. The file will always be reparsed if its own write time changes.
// 0: no, 1: only after initial load of project, 2: yes
int trackDependency = 2;
std::vector<std::string> whitelist;
} index;
// Disable semantic highlighting for files larger than the size.
int64_t largeFileSize = 2 * 1024 * 1024;
struct WorkspaceSymbol {
int caseSensitivity = 1;
// Maximum workspace search results.
int maxNum = 1000;
// If true, workspace search results will be dynamically rescored/reordered
// as the search progresses. Some clients do their own ordering and assume
// that the results stay sorted in the same order as the search progresses.
bool sort = true;
} workspaceSymbol;
struct Xref {
// If true, |Location[]| response will include lexical container.
bool container = false;
// Maximum number of definition/reference/... results.
int maxNum = 2000;
} xref;
};
MAKE_REFLECT_STRUCT(Config::Clang, excludeArgs, extraArgs, pathMappings,
resourceDir);
MAKE_REFLECT_STRUCT(Config::ClientCapability, hierarchicalDocumentSymbolSupport,
snippetSupport);
MAKE_REFLECT_STRUCT(Config::CodeLens, localVariables);
MAKE_REFLECT_STRUCT(Config::Completion, caseSensitivity, detailedLabel,
dropOldRequests, duplicateOptional, filterAndSort,
includeBlacklist, includeMaxPathSize,
includeSuffixWhitelist, includeWhitelist);
MAKE_REFLECT_STRUCT(Config::Diagnostics, blacklist, onChange, onOpen, onSave,
spellChecking, whitelist)
MAKE_REFLECT_STRUCT(Config::Highlight, lsRanges, blacklist, whitelist)
MAKE_REFLECT_STRUCT(Config::Index, blacklist, comments, enabled,
initialBlacklist, initialWhitelist, multiVersion,
multiVersionBlacklist, multiVersionWhitelist, onChange,
threads, trackDependency, whitelist);
MAKE_REFLECT_STRUCT(Config::WorkspaceSymbol, caseSensitivity, maxNum, sort);
MAKE_REFLECT_STRUCT(Config::Xref, container, maxNum);
MAKE_REFLECT_STRUCT(Config, compilationDatabaseCommand,
compilationDatabaseDirectory, cacheDirectory, cacheFormat,
clang, client, codeLens, completion, diagnostics, highlight,
index, largeFileSize, workspaceSymbol, xref);
extern Config *g_config;
namespace ccls {
void DoPathMapping(std::string &arg);
}