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linkmap.js
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160 lines (144 loc) · 3.72 KB
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// ver 1.0
// author: NearEast 2018-07-27, modified from https://gist.github.com/bang590/8f3e9704f1c2661836cd
// usage: node linkmap.js filepath -hlp
// Desc: resolve linkmap file, to find out how heavy each part takes in your binary
var readline = require('readline'),
fs = require('fs');
var LinkMap = function(filePath) {
this.files = [];
this.filePath = filePath;
this.sum = 0.0;
}
LinkMap.prototype = {
start: function(cb) {
var self = this;
var rl = readline.createInterface({
input: fs.createReadStream(self.filePath),
output: process.stdout,
terminal: false
});
var currParser = "";
rl.on('line', function(line) {
if (line[0] == '#') {
if (line.indexOf('Object files') > -1) {
currParser = "_parseFiles";
} else if (line.indexOf('Sections') > -1) {
currParser = "_parseSection";
} else if (line.indexOf('Symbols') > -1) {
currParser = "_parseSymbols";
}
return;
}
if (self[currParser]) {
self[currParser](line);
}
});
rl.on('close', function(line) {
cb(self);
});
},
_parseFiles: function(line) {
var arr = line.split(']');
if (arr.length > 1) {
var idx = Number(arr[0].replace('[',''));
var file = arr[1].split('/').pop().trim();
this.files[idx] = {
name: file,
size: 0,
percentage: ''
};
}
},
_parseSection: function(line) {
},
_parseSymbols: function(line) {
var arr = line.split('\t');
if (arr.length > 2) {
var size = parseInt(arr[1], 16);
var idx = Number(arr[2].split(']')[0].replace('[', ''));
if (idx && this.files[idx]) {
this.sum += size;
this.files[idx].size += size;
}
}
},
_formatSize: function(size) {
if (size > 1024 * 1024) return (size/(1024*1024)).toFixed(2) + "MB";
if (size > 1024) return (size/1024).toFixed(2) + "KB";
return size + "B";
},
statLibs: function(h, p) {
var libs = {};
var files = this.files;
var self = this;
for (var i in files) {
var file = files[i];
var libName;
if (file.name.indexOf('.o)') > -1) {//libQRCode.a(QRCode.o)
libName = file.name.split('(')[0];
} else {//BaiduWallet_Portal;//GPUImageSharpenFilter.o
libName = file.name;
}
if (!libs[libName]) {
libs[libName] = 0;
}
libs[libName] += file.size;
}
var i = 0, sortLibs = [];
for (var name in libs) {
sortLibs[i++] = {
name: name,
size: libs[name],
percentage: ''
}
}
return this.sortAndFormat(sortLibs, h, p);
},
statFiles: function(h, p) {
return this.sortAndFormat(this.files, h, p);
},
sortAndFormat:function(data, h, p) {
var self = this;
data.sort(function(a,b) {
return a.size > b.size ? -1 : 1;
})
if (h || p) {
data.map(function(o) {
if (self.sum && p) {
o.percentage = (100 * o.size / self.sum).toFixed(3) + "%";
}
if (h) {
o.size = self._formatSize(o.size);
}
})
}
return data;
}
}
if (!process.argv[2]) {
console.log('usage: node linkmap.js filepath -hlp');
console.log('-h: format size');
console.log('-l: stat libs');
console.log('-p: print percentage');
return;
}
var isStatLib, isFomatSize, showPercentage;
var opts = process.argv[3];
if (opts && opts[0] == '-') {
if (opts.indexOf('h') > -1) isFomatSize = true;
if (opts.indexOf('l') > -1) isStatLib = true;
if (opts.indexOf('p') > -1) showPercentage = true;
}
var linkmap = new LinkMap(process.argv[2]);
linkmap.start(function(){
var ret = isStatLib ? linkmap.statLibs(isFomatSize, showPercentage)
: linkmap.statFiles(isFomatSize, showPercentage);
console.log('Total stat binary size: ' + linkmap._formatSize(linkmap.sum) + '\n');
for (var i in ret) {
var text = ret[i].name + '\t' + ret[i].size;
if (showPercentage) {
text += ('\t' + ret[i].percentage);
}
console.log(text);
}
})