javascript-call-graph/requireJsGraph.js at master · abort/javascript-call-graph · GitHub

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if(typeofdefine!=='function'){
vardefine=require('amdefine')(module);
}

define(function(require,exports){

varassert=require('assert'),
astutil=require('./astutil'),
_=require('./underscore'),
fs=require('fs');


functionmakeRequireJsGraph(ast){
assert.equal(1,ast.programs.length,"Can only have one starting point at the moment.");

varrx=/^.*\\(.+\\)*(.+)\.(.+)$/g;
varregexParse=rx.exec(ast.programs[0].attr.filename);
varpartialFileName=regexParse[2]+".js",
fileName="./"+partialFileName,
folder=regexParse[0].split(/[a-zA-Z]+\.js/)[0].replace(/\/$/,"\\");
vardependencyGraph=[];
astutil.visit(ast,function(node){
switch(node.type){
case'CallExpression' :
if(node.callee.name==="define"||node.callee.name==="require"){
vardependencies=[],argument=node.arguments[0];
if(argument.type==="ArrayExpression"){
argument.elements.forEach(function(element){
dependencies.push(element.value+".js");
});
}elseif(argument.type==="Literal"){
dependencies.push(argument.value+".js");
}
dependencies.forEach(function(dependency){
dependencyGraph.push(newDependency(fileName,dependency));
});
}
break;
}
});
dependencyGraph.map(function(dep){returndep.to}).forEach(function(outgoingDep){
varnormOutgoingDep=outgoingDep.replace(/^.\//,"");
normOutgoingDep=normOutgoingDep.replace(/^\//,"");
normOutgoingDep=normOutgoingDep.replace(/\//,"\\");
varnewStart=folder+normOutgoingDep;
if(fs.existsSync(newStart)){
varreferencedAST=astutil.buildAST([newStart]);
dependencyGraph=dependencyGraph.concat(makeRequireJsGraph(referencedAST))
}
});
return_.uniq(dependencyGraph,function(edge){
returnedge.toString();
});
}

functionDependency(from,to){
this.from=from;
this.to=to;

this.toString=function(){
returnremoveLeadingPointSlash(this.from)+" -> "+removeLeadingPointSlash(this.to);
};

functionremoveLeadingPointSlash(path){
returnpath.replace(/^\.?\//,"");
}
}
exports.makeRequireJsGraph=makeRequireJsGraph;
returnexports;
});