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Json: Use simple json library picojson to read compile databases

This commit is contained in:
Daniel Marjamäki 2019-01-05 17:45:07 +01:00
parent 615903c6be
commit 5f5c33baf2
3 changed files with 1085 additions and 91 deletions
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1010
externals/picojson.h vendored Normal file
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165
lib/importproject.cpp
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@ -25,6 +25,7 @@
#include "tokenize.h"
#include "tokenlist.h"
#include "utils.h"
#include "../externals/picojson.h"
#include <cstring>
#include <fstream>
@ -192,101 +193,83 @@ ImportProject::Type ImportProject::import(const std::string &filename)
return UNKNOWN;
}
static std::string readUntil(const std::string &command, std::string::size_type *pos, const char until[])
{
std::string ret;
bool str = false;
while (*pos < command.size() && (str || !std::strchr(until, command[*pos]))) {
if (command[*pos] == '\\')
++*pos;
if (*pos < command.size())
ret += command[(*pos)++];
if (endsWith(ret, '\"'))
str = !str;
}
return ret;
}
void ImportProject::FileSettings::parseCommand(const std::string &command)
{
std::string defs;
// Parse command..
std::string::size_type pos = 0;
while (std::string::npos != (pos = command.find(' ',pos))) {
while (pos < command.size() && command[pos] == ' ')
pos++;
if (pos >= command.size())
break;
if (command[pos] != '/' && command[pos] != '-')
continue;
pos++;
if (pos >= command.size())
break;
const char F = command[pos++];
if (std::strchr("DUI", F)) {
while (pos < command.size() && command[pos] == ' ')
++pos;
}
const std::string fval = readUntil(command, &pos, " =");
if (F=='D') {
const std::string defval = readUntil(command, &pos, " ");
defs += fval;
if (!defval.empty())
defs += defval;
defs += ';';
} else if (F=='U')
undefs.insert(fval);
else if (F=='I')
includePaths.push_back(fval);
else if (F=='s' && fval.compare(0,3,"td=") == 0)
standard = fval.substr(3);
else if (F == 'i' && fval == "system") {
++pos;
const std::string isystem = readUntil(command, &pos, " ");
systemIncludePaths.push_back(isystem);
}
}
setDefines(defs);
}
void ImportProject::importCompileCommands(std::istream &istr)
{
std::map<std::string, std::string> values;
picojson::value v;
istr >> v;
if (!v.is<picojson::array>())
return;
// TODO: Use a JSON parser
for (const picojson::value &fileInfo : v.get<picojson::array>()) {
picojson::object obj = fileInfo.get<picojson::object>();
const std::string directory = Path::fromNativeSeparators(obj["directory"].get<std::string>());
const std::string command = obj["command"].get<std::string>();
const std::string file = Path::fromNativeSeparators(obj["file"].get<std::string>());
Settings settings;
TokenList tokenList(&settings);
tokenList.createTokens(istr);
for (const Token *tok = tokenList.front(); tok; tok = tok->next()) {
if (Token::Match(tok, "%str% : %str% [,}]")) {
const std::string& key = tok->str();
const std::string& value = tok->strAt(2);
values[key.substr(1, key.size() - 2U)] = value.substr(1, value.size() - 2U);
}
else if (Token::Match(tok, "%str% : [ %str%") && tok->str() == "\"arguments\"") {
std::string cmd;
tok = tok->tokAt(2);
while (Token::Match(tok, ",|[ %str%")) {
const std::string &s = tok->next()->str();
cmd += ' ' + s.substr(1, s.size() - 2);
tok = tok->tokAt(2);
}
values["command"] = cmd.substr(1);
}
else if (tok->str() == "}") {
if (!values["file"].empty() && !values["command"].empty()) {
struct FileSettings fs;
fs.filename = Path::fromNativeSeparators(values["file"]);
const std::string& command = values["command"];
const std::string directory = Path::fromNativeSeparators(values["directory"]);
std::string::size_type pos = 0;
while (std::string::npos != (pos = command.find(' ',pos))) {
pos++;
if (pos >= command.size())
break;
if (command[pos] != '/' && command[pos] != '-')
continue;
pos++;
if (pos >= command.size())
break;
const char F = command[pos++];
if (std::strchr("DUI", F)) {
while (pos < command.size() && command[pos] == ' ')
++pos;
}
std::string fval;
while (pos < command.size() && command[pos] != ' ' && command[pos] != '=') {
if (command[pos] != '\\')
fval += command[pos];
pos++;
}
if (F=='D') {
std::string defval;
bool str = false;
while (pos < command.size() && (str || command[pos] != ' ')) {
if (command.compare(pos, 4, "\\\\\\\"") == 0) {
defval += '\"';
str = !str;
pos += 4;
} else {
defval += command[pos];
pos++;
}
}
fs.defines += fval;
if (!defval.empty())
fs.defines += defval;
fs.defines += ';';
} else if (F=='U')
fs.undefs.insert(fval);
else if (F=='I')
fs.includePaths.push_back(fval);
else if (F=='s' && fval.compare(0,3,"td=") == 0)
fs.standard = fval.substr(3);
else if (F == 'i' && fval == "system") {
++pos;
std::string isystem;
while (pos < command.size() && command[pos] != ' ') {
if (command[pos] != '\\')
isystem += command[pos];
pos++;
}
fs.systemIncludePaths.push_back(isystem);
}
}
std::map<std::string, std::string, cppcheck::stricmp> variables;
fs.setIncludePaths(directory, fs.includePaths, variables);
fs.setDefines(fs.defines);
fileSettings.push_back(fs);
}
values.clear();
}
struct FileSettings fs;
fs.filename = file;
fs.parseCommand(command); // read settings; -D, -I, -U, -std
std::map<std::string, std::string, cppcheck::stricmp> variables;
fs.setIncludePaths(directory, fs.includePaths, variables);
fileSettings.push_back(fs);
}
}

1
lib/importproject.h
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@ -73,6 +73,7 @@ public:
bool msc;
bool useMfc;
void parseCommand(const std::string &command);
void setDefines(std::string defs);
void setIncludePaths(const std::string &basepath, const std::list<std::string> &in, std::map<std::string, std::string, cppcheck::stricmp> &variables);
};