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57 lines
1.3 KiB
57 lines
1.3 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 "cmRemoveCommand.h"
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#include "cmExecutionStatus.h"
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#include "cmList.h"
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#include "cmMakefile.h"
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#include "cmValue.h"
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// cmRemoveCommand
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bool cmRemoveCommand(std::vector<std::string> const& args,
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cmExecutionStatus& status)
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{
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if (args.empty()) {
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return true;
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}
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std::string const& variable = args[0]; // VAR is always first
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// get the old value
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cmValue cacheValue = status.GetMakefile().GetDefinition(variable);
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// if there is no old value then return
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if (!cacheValue) {
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return true;
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}
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// expand the variable
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cmList const varArgsExpanded{ *cacheValue };
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// expand the args
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// check for REMOVE(VAR v1 v2 ... vn)
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cmList const argsExpanded{ args.begin() + 1, args.end() };
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// now create the new value
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std::string value;
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for (std::string const& varArgExpanded : varArgsExpanded) {
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int found = 0;
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for (std::string const& argExpanded : argsExpanded) {
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if (varArgExpanded == argExpanded) {
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found = 1;
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break;
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}
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}
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if (!found) {
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if (!value.empty()) {
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value += ";";
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}
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value += varArgExpanded;
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}
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}
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// add the definition
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status.GetMakefile().AddDefinition(variable, value);
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return true;
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}
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