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389 lines
12 KiB
389 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 "cmAddCustomCommandCommand.h"
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#include <sstream>
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#include <unordered_set>
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#include "cmCheckCustomOutputs.h"
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#include "cmCustomCommand.h"
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#include "cmCustomCommandLines.h"
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#include "cmCustomCommandTypes.h"
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#include "cmExecutionStatus.h"
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#include "cmGlobalGenerator.h"
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#include "cmMakefile.h"
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#include "cmMessageType.h"
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#include "cmPolicies.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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bool cmAddCustomCommandCommand(std::vector<std::string> const& args,
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cmExecutionStatus& status)
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{
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/* Let's complain at the end of this function about the lack of a particular
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arg. For the moment, let's say that COMMAND, and either TARGET or SOURCE
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are required.
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*/
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if (args.size() < 4) {
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status.SetError("called with wrong number of arguments.");
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return false;
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}
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cmMakefile& mf = status.GetMakefile();
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std::string source;
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std::string target;
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std::string main_dependency;
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std::string working;
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std::string depfile;
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std::string job_pool;
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std::string comment_buffer;
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const char* comment = nullptr;
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std::vector<std::string> depends;
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std::vector<std::string> outputs;
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std::vector<std::string> output;
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std::vector<std::string> byproducts;
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bool verbatim = false;
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bool append = false;
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bool uses_terminal = false;
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bool command_expand_lists = false;
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std::string implicit_depends_lang;
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cmImplicitDependsList implicit_depends;
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// Accumulate one command line at a time.
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cmCustomCommandLine currentLine;
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// Save all command lines.
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cmCustomCommandLines commandLines;
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cmCustomCommandType cctype = cmCustomCommandType::POST_BUILD;
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enum tdoing
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{
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doing_source,
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doing_command,
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doing_target,
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doing_depends,
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doing_implicit_depends_lang,
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doing_implicit_depends_file,
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doing_main_dependency,
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doing_output,
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doing_outputs,
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doing_byproducts,
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doing_comment,
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doing_working_directory,
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doing_depfile,
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doing_job_pool,
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doing_nothing
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};
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tdoing doing = doing_nothing;
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#define MAKE_STATIC_KEYWORD(KEYWORD) \
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static const std::string key##KEYWORD = #KEYWORD
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MAKE_STATIC_KEYWORD(APPEND);
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MAKE_STATIC_KEYWORD(ARGS);
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MAKE_STATIC_KEYWORD(BYPRODUCTS);
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MAKE_STATIC_KEYWORD(COMMAND);
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MAKE_STATIC_KEYWORD(COMMAND_EXPAND_LISTS);
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MAKE_STATIC_KEYWORD(COMMENT);
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MAKE_STATIC_KEYWORD(DEPENDS);
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MAKE_STATIC_KEYWORD(DEPFILE);
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MAKE_STATIC_KEYWORD(IMPLICIT_DEPENDS);
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MAKE_STATIC_KEYWORD(JOB_POOL);
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MAKE_STATIC_KEYWORD(MAIN_DEPENDENCY);
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MAKE_STATIC_KEYWORD(OUTPUT);
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MAKE_STATIC_KEYWORD(OUTPUTS);
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MAKE_STATIC_KEYWORD(POST_BUILD);
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MAKE_STATIC_KEYWORD(PRE_BUILD);
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MAKE_STATIC_KEYWORD(PRE_LINK);
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MAKE_STATIC_KEYWORD(SOURCE);
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MAKE_STATIC_KEYWORD(TARGET);
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MAKE_STATIC_KEYWORD(USES_TERMINAL);
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MAKE_STATIC_KEYWORD(VERBATIM);
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MAKE_STATIC_KEYWORD(WORKING_DIRECTORY);
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#undef MAKE_STATIC_KEYWORD
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static std::unordered_set<std::string> const keywords{
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keyAPPEND,
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keyARGS,
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keyBYPRODUCTS,
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keyCOMMAND,
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keyCOMMAND_EXPAND_LISTS,
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keyCOMMENT,
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keyDEPENDS,
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keyDEPFILE,
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keyIMPLICIT_DEPENDS,
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keyJOB_POOL,
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keyMAIN_DEPENDENCY,
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keyOUTPUT,
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keyOUTPUTS,
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keyPOST_BUILD,
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keyPRE_BUILD,
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keyPRE_LINK,
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keySOURCE,
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keyTARGET,
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keyUSES_TERMINAL,
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keyVERBATIM,
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keyWORKING_DIRECTORY
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};
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for (std::string const& copy : args) {
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if (keywords.count(copy)) {
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if (copy == keySOURCE) {
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doing = doing_source;
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} else if (copy == keyCOMMAND) {
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doing = doing_command;
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// Save the current command before starting the next command.
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if (!currentLine.empty()) {
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commandLines.push_back(currentLine);
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currentLine.clear();
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}
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} else if (copy == keyPRE_BUILD) {
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cctype = cmCustomCommandType::PRE_BUILD;
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} else if (copy == keyPRE_LINK) {
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cctype = cmCustomCommandType::PRE_LINK;
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} else if (copy == keyPOST_BUILD) {
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cctype = cmCustomCommandType::POST_BUILD;
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} else if (copy == keyVERBATIM) {
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verbatim = true;
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} else if (copy == keyAPPEND) {
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append = true;
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} else if (copy == keyUSES_TERMINAL) {
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uses_terminal = true;
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} else if (copy == keyCOMMAND_EXPAND_LISTS) {
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command_expand_lists = true;
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} else if (copy == keyTARGET) {
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doing = doing_target;
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} else if (copy == keyARGS) {
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// Ignore this old keyword.
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} else if (copy == keyDEPENDS) {
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doing = doing_depends;
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} else if (copy == keyOUTPUTS) {
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doing = doing_outputs;
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} else if (copy == keyOUTPUT) {
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doing = doing_output;
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} else if (copy == keyBYPRODUCTS) {
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doing = doing_byproducts;
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} else if (copy == keyWORKING_DIRECTORY) {
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doing = doing_working_directory;
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} else if (copy == keyMAIN_DEPENDENCY) {
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doing = doing_main_dependency;
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} else if (copy == keyIMPLICIT_DEPENDS) {
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doing = doing_implicit_depends_lang;
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} else if (copy == keyCOMMENT) {
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doing = doing_comment;
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} else if (copy == keyDEPFILE) {
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doing = doing_depfile;
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if (!mf.GetGlobalGenerator()->SupportsCustomCommandDepfile()) {
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status.SetError("Option DEPFILE not supported by " +
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mf.GetGlobalGenerator()->GetName());
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return false;
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}
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} else if (copy == keyJOB_POOL) {
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doing = doing_job_pool;
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}
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} else {
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std::string filename;
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switch (doing) {
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case doing_output:
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case doing_outputs:
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case doing_byproducts:
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if (!cmSystemTools::FileIsFullPath(copy)) {
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// This is an output to be generated, so it should be
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// under the build tree. CMake 2.4 placed this under the
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// source tree. However the only case that this change
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// will break is when someone writes
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//
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// add_custom_command(OUTPUT out.txt ...)
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//
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// and later references "${CMAKE_CURRENT_SOURCE_DIR}/out.txt".
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// This is fairly obscure so we can wait for someone to
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// complain.
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filename = cmStrCat(mf.GetCurrentBinaryDirectory(), '/');
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}
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filename += copy;
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cmSystemTools::ConvertToUnixSlashes(filename);
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break;
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case doing_source:
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// We do not want to convert the argument to SOURCE because
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// that option is only available for backward compatibility.
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// Old-style use of this command may use the SOURCE==TARGET
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// trick which we must preserve. If we convert the source
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// to a full path then it will no longer equal the target.
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default:
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break;
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}
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if (cmSystemTools::FileIsFullPath(filename)) {
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filename = cmSystemTools::CollapseFullPath(
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filename, status.GetMakefile().GetHomeOutputDirectory());
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}
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switch (doing) {
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case doing_depfile:
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depfile = copy;
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break;
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case doing_job_pool:
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job_pool = copy;
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break;
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case doing_working_directory:
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working = copy;
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break;
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case doing_source:
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source = copy;
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break;
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case doing_output:
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output.push_back(filename);
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break;
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case doing_main_dependency:
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main_dependency = copy;
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break;
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case doing_implicit_depends_lang:
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implicit_depends_lang = copy;
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doing = doing_implicit_depends_file;
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break;
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case doing_implicit_depends_file: {
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// An implicit dependency starting point is also an
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// explicit dependency.
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std::string dep = copy;
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// Upfront path conversion is correct because Genex
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// are not supported.
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cmSystemTools::ConvertToUnixSlashes(dep);
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depends.push_back(dep);
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// Add the implicit dependency language and file.
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implicit_depends.emplace_back(implicit_depends_lang, dep);
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// Switch back to looking for a language.
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doing = doing_implicit_depends_lang;
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} break;
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case doing_command:
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currentLine.push_back(copy);
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break;
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case doing_target:
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target = copy;
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break;
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case doing_depends:
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depends.push_back(copy);
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break;
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case doing_outputs:
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outputs.push_back(filename);
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break;
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case doing_byproducts:
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byproducts.push_back(filename);
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break;
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case doing_comment:
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comment_buffer = copy;
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comment = comment_buffer.c_str();
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break;
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default:
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status.SetError("Wrong syntax. Unknown type of argument.");
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return false;
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}
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}
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}
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// Store the last command line finished.
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if (!currentLine.empty()) {
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commandLines.push_back(currentLine);
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currentLine.clear();
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}
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// At this point we could complain about the lack of arguments. For
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// the moment, let's say that COMMAND, TARGET are always required.
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if (output.empty() && target.empty()) {
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status.SetError("Wrong syntax. A TARGET or OUTPUT must be specified.");
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return false;
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}
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if (source.empty() && !target.empty() && !output.empty()) {
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status.SetError(
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"Wrong syntax. A TARGET and OUTPUT can not both be specified.");
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return false;
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}
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if (append && output.empty()) {
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status.SetError("given APPEND option with no OUTPUT.");
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return false;
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}
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// Make sure the output names and locations are safe.
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if (!cmCheckCustomOutputs(output, "OUTPUT", status) ||
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!cmCheckCustomOutputs(outputs, "OUTPUTS", status) ||
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!cmCheckCustomOutputs(byproducts, "BYPRODUCTS", status)) {
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return false;
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}
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// Check for an append request.
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if (append) {
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if (mf.AppendCustomCommandToOutput(output[0], depends, implicit_depends,
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commandLines)) {
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return true;
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}
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// No command for this output exists.
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status.SetError(
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cmStrCat("given APPEND option with output\n ", output[0],
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"\nwhich is not already a custom command output."));
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return false;
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}
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if (uses_terminal && !job_pool.empty()) {
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status.SetError("JOB_POOL is shadowed by USES_TERMINAL.");
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return false;
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}
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// Choose which mode of the command to use.
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bool escapeOldStyle = !verbatim;
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if (source.empty() && output.empty()) {
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// Source is empty, use the target.
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std::vector<std::string> no_depends;
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mf.AddCustomCommandToTarget(target, byproducts, no_depends, commandLines,
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cctype, comment, working.c_str(),
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escapeOldStyle, uses_terminal, depfile,
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job_pool, command_expand_lists);
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} else if (target.empty()) {
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// Target is empty, use the output.
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mf.AddCustomCommandToOutput(
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output, byproducts, depends, main_dependency, implicit_depends,
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commandLines, comment, working.c_str(), nullptr, false, escapeOldStyle,
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uses_terminal, command_expand_lists, depfile, job_pool);
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} else if (!byproducts.empty()) {
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status.SetError("BYPRODUCTS may not be specified with SOURCE signatures");
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return false;
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} else if (uses_terminal) {
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status.SetError("USES_TERMINAL may not be used with SOURCE signatures");
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return false;
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} else {
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bool issueMessage = true;
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std::ostringstream e;
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MessageType messageType = MessageType::AUTHOR_WARNING;
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switch (mf.GetPolicyStatus(cmPolicies::CMP0050)) {
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case cmPolicies::WARN:
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e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0050) << "\n";
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break;
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case cmPolicies::OLD:
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issueMessage = false;
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break;
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case cmPolicies::REQUIRED_ALWAYS:
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case cmPolicies::REQUIRED_IF_USED:
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case cmPolicies::NEW:
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messageType = MessageType::FATAL_ERROR;
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break;
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}
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if (issueMessage) {
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e << "The SOURCE signatures of add_custom_command are no longer "
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"supported.";
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mf.IssueMessage(messageType, e.str());
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if (messageType == MessageType::FATAL_ERROR) {
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return false;
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}
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}
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// Use the old-style mode for backward compatibility.
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mf.AddCustomCommandOldStyle(target, outputs, depends, source, commandLines,
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comment);
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}
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return true;
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}
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