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357 lines
12 KiB
357 lines
12 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmScanDepFormat.h"
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#include <cctype>
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#include <cstdio>
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#include <utility>
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#include <cm/optional>
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#include <cm/string_view>
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#include <cmext/string_view>
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#include <cm3p/json/reader.h>
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#include <cm3p/json/value.h>
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#include <cm3p/json/writer.h>
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#include "cmsys/FStream.hxx"
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#include "cmGeneratedFileStream.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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static bool ParseFilename(Json::Value const& val, std::string& result)
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{
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if (val.isString()) {
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result = val.asString();
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} else {
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return false;
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}
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return true;
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}
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static Json::Value EncodeFilename(std::string const& path)
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{
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std::string data;
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data.reserve(path.size());
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for (auto const& byte : path) {
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if (std::iscntrl(byte)) {
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// Control characters.
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data.append("\\u");
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char buf[5];
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std::snprintf(buf, sizeof(buf), "%04x", byte);
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data.append(buf);
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} else if (byte == '"' || byte == '\\') {
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// Special JSON characters.
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data.push_back('\\');
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data.push_back(byte);
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} else {
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// Other data.
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data.push_back(byte);
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}
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}
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return data;
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}
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#define PARSE_BLOB(val, res) \
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do { \
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if (!ParseFilename(val, res)) { \
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cmSystemTools::Error(cmStrCat("-E cmake_ninja_dyndep failed to parse ", \
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arg_pp, ": invalid blob")); \
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return false; \
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} \
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} while (0)
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#define PARSE_FILENAME(val, res) \
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do { \
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if (!ParseFilename(val, res)) { \
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cmSystemTools::Error(cmStrCat("-E cmake_ninja_dyndep failed to parse ", \
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arg_pp, ": invalid filename")); \
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return false; \
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} \
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\
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if (work_directory && !work_directory->empty() && \
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!cmSystemTools::FileIsFullPath(res)) { \
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res = cmStrCat(*work_directory, '/', res); \
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} \
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} while (0)
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bool cmScanDepFormat_P1689_Parse(std::string const& arg_pp,
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cmScanDepInfo* info)
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{
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Json::Value ppio;
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Json::Value const& ppi = ppio;
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cmsys::ifstream ppf(arg_pp.c_str(), std::ios::in | std::ios::binary);
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{
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Json::Reader reader;
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if (!reader.parse(ppf, ppio, false)) {
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cmSystemTools::Error(cmStrCat("-E cmake_ninja_dyndep failed to parse ",
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arg_pp,
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reader.getFormattedErrorMessages()));
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return false;
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}
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}
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Json::Value const& version = ppi["version"];
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if (version.asUInt() > 1) {
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cmSystemTools::Error(cmStrCat("-E cmake_ninja_dyndep failed to parse ",
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arg_pp, ": version ", version.asString()));
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return false;
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}
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Json::Value const& rules = ppi["rules"];
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if (rules.isArray()) {
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if (rules.size() != 1) {
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cmSystemTools::Error(cmStrCat("-E cmake_ninja_dyndep failed to parse ",
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arg_pp, ": expected 1 source entry"));
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return false;
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}
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for (auto const& rule : rules) {
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cm::optional<std::string> work_directory;
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Json::Value const& workdir = rule["work-directory"];
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if (workdir.isString()) {
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std::string wd;
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PARSE_BLOB(workdir, wd);
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work_directory = std::move(wd);
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} else if (!workdir.isNull()) {
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cmSystemTools::Error(cmStrCat("-E cmake_ninja_dyndep failed to parse ",
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arg_pp,
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": work-directory is not a string"));
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return false;
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}
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if (rule.isMember("primary-output")) {
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Json::Value const& primary_output = rule["primary-output"];
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PARSE_FILENAME(primary_output, info->PrimaryOutput);
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}
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if (rule.isMember("outputs")) {
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Json::Value const& outputs = rule["outputs"];
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if (outputs.isArray()) {
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for (auto const& output : outputs) {
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std::string extra_output;
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PARSE_FILENAME(output, extra_output);
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info->ExtraOutputs.emplace_back(extra_output);
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}
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}
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}
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if (rule.isMember("provides")) {
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Json::Value const& provides = rule["provides"];
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if (!provides.isArray()) {
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cmSystemTools::Error(
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cmStrCat("-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": provides is not an array"));
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return false;
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}
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for (auto const& provide : provides) {
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cmSourceReqInfo provide_info;
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Json::Value const& logical_name = provide["logical-name"];
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PARSE_BLOB(logical_name, provide_info.LogicalName);
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if (provide.isMember("compiled-module-path")) {
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Json::Value const& compiled_module_path =
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provide["compiled-module-path"];
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PARSE_FILENAME(compiled_module_path,
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provide_info.CompiledModulePath);
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}
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if (provide.isMember("unique-on-source-path")) {
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Json::Value const& unique_on_source_path =
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provide["unique-on-source-path"];
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if (!unique_on_source_path.isBool()) {
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cmSystemTools::Error(
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cmStrCat("-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": unique-on-source-path is not a boolean"));
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return false;
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}
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provide_info.UseSourcePath = unique_on_source_path.asBool();
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} else {
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provide_info.UseSourcePath = false;
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}
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if (provide.isMember("source-path")) {
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Json::Value const& source_path = provide["source-path"];
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PARSE_FILENAME(source_path, provide_info.SourcePath);
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} else if (provide_info.UseSourcePath) {
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cmSystemTools::Error(
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cmStrCat("-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": source-path is missing"));
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return false;
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}
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info->Provides.push_back(provide_info);
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}
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}
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if (rule.isMember("requires")) {
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Json::Value const& reqs = rule["requires"];
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if (!reqs.isArray()) {
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cmSystemTools::Error(
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cmStrCat("-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": requires is not an array"));
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return false;
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}
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for (auto const& require : reqs) {
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cmSourceReqInfo require_info;
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Json::Value const& logical_name = require["logical-name"];
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PARSE_BLOB(logical_name, require_info.LogicalName);
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if (require.isMember("compiled-module-path")) {
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Json::Value const& compiled_module_path =
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require["compiled-module-path"];
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PARSE_FILENAME(compiled_module_path,
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require_info.CompiledModulePath);
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}
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if (require.isMember("unique-on-source-path")) {
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Json::Value const& unique_on_source_path =
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require["unique-on-source-path"];
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if (!unique_on_source_path.isBool()) {
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cmSystemTools::Error(
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cmStrCat("-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": unique-on-source-path is not a boolean"));
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return false;
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}
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require_info.UseSourcePath = unique_on_source_path.asBool();
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} else {
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require_info.UseSourcePath = false;
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}
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if (require.isMember("source-path")) {
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Json::Value const& source_path = require["source-path"];
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PARSE_FILENAME(source_path, require_info.SourcePath);
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} else if (require_info.UseSourcePath) {
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cmSystemTools::Error(
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cmStrCat("-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": source-path is missing"));
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return false;
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}
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if (require.isMember("lookup-method")) {
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Json::Value const& lookup_method = require["lookup-method"];
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if (!lookup_method.isString()) {
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cmSystemTools::Error(
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cmStrCat("-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": lookup-method is not a string"));
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return false;
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}
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std::string lookup_method_str = lookup_method.asString();
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if (lookup_method_str == "by-name"_s) {
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require_info.Method = LookupMethod::ByName;
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} else if (lookup_method_str == "include-angle"_s) {
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require_info.Method = LookupMethod::IncludeAngle;
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} else if (lookup_method_str == "include-quote"_s) {
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require_info.Method = LookupMethod::IncludeQuote;
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} else {
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cmSystemTools::Error(cmStrCat(
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"-E cmake_ninja_dyndep failed to parse ", arg_pp,
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": lookup-method is not a valid: ", lookup_method_str));
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return false;
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}
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} else if (require_info.UseSourcePath) {
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require_info.Method = LookupMethod::ByName;
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}
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info->Requires.push_back(require_info);
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}
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}
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}
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}
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return true;
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}
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bool cmScanDepFormat_P1689_Write(std::string const& path,
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cmScanDepInfo const& info)
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{
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Json::Value ddi(Json::objectValue);
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ddi["version"] = 0;
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ddi["revision"] = 0;
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Json::Value& rules = ddi["rules"] = Json::arrayValue;
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Json::Value rule(Json::objectValue);
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rule["primary-output"] = EncodeFilename(info.PrimaryOutput);
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Json::Value& rule_outputs = rule["outputs"] = Json::arrayValue;
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for (auto const& output : info.ExtraOutputs) {
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rule_outputs.append(EncodeFilename(output));
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}
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Json::Value& provides = rule["provides"] = Json::arrayValue;
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for (auto const& provide : info.Provides) {
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Json::Value provide_obj(Json::objectValue);
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auto const encoded = EncodeFilename(provide.LogicalName);
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provide_obj["logical-name"] = encoded;
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if (!provide.CompiledModulePath.empty()) {
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provide_obj["compiled-module-path"] =
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EncodeFilename(provide.CompiledModulePath);
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}
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if (provide.UseSourcePath) {
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provide_obj["unique-on-source-path"] = true;
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provide_obj["source-path"] = EncodeFilename(provide.SourcePath);
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} else if (!provide.SourcePath.empty()) {
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provide_obj["source-path"] = EncodeFilename(provide.SourcePath);
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}
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provides.append(provide_obj);
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}
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Json::Value& reqs = rule["requires"] = Json::arrayValue;
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for (auto const& require : info.Requires) {
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Json::Value require_obj(Json::objectValue);
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auto const encoded = EncodeFilename(require.LogicalName);
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require_obj["logical-name"] = encoded;
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if (!require.CompiledModulePath.empty()) {
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require_obj["compiled-module-path"] =
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EncodeFilename(require.CompiledModulePath);
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}
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if (require.UseSourcePath) {
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require_obj["unique-on-source-path"] = true;
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require_obj["source-path"] = EncodeFilename(require.SourcePath);
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} else if (!require.SourcePath.empty()) {
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require_obj["source-path"] = EncodeFilename(require.SourcePath);
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}
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const char* lookup_method = nullptr;
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switch (require.Method) {
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case LookupMethod::ByName:
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// No explicit value needed for the default.
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break;
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case LookupMethod::IncludeAngle:
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lookup_method = "include-angle";
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break;
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case LookupMethod::IncludeQuote:
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lookup_method = "include-quote";
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break;
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}
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if (lookup_method) {
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require_obj["lookup-method"] = lookup_method;
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}
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reqs.append(require_obj);
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}
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rules.append(rule);
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cmGeneratedFileStream ddif(path);
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ddif << ddi;
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return !!ddif;
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}
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