108 lines
2.2 KiB
C++
108 lines
2.2 KiB
C++
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#include "common.hpp"
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#include <dtl/dtl.hpp>
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#include <fstream>
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#include <iostream>
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#include <sstream>
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#include <vector>
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#include <sys/stat.h>
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#include <time.h>
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using namespace std;
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using dtl::Diff;
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using dtl::elemInfo;
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using dtl::uniHunk;
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static void showStats(string fp1, string fp2);
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static void unifiedDiff(string fp1, string fp2);
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static void showStats(string fp1, string fp2) {
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const int MAX_LENGTH = 255;
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char time_format[] = "%Y-%m-%d %H:%M:%S %z";
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time_t rawtime[2];
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struct tm *timeinfo[2];
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struct stat st[2];
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if (stat(fp1.c_str(), &st[0]) == -1) {
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cerr << "argv1 is invalid." << endl;
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exit(-1);
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}
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if (stat(fp2.c_str(), &st[1]) == -1) {
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cerr << "argv2 is invalid" << endl;
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exit(-1);
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}
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char buf[2][MAX_LENGTH + 1];
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rawtime[0] = st[0].st_mtime;
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timeinfo[0] = localtime(&rawtime[0]);
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strftime(buf[0], MAX_LENGTH, time_format, timeinfo[0]);
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cout << "--- " << fp1 << '\t' << buf[0] << endl;
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rawtime[1] = st[1].st_mtime;
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timeinfo[1] = localtime(&rawtime[1]);
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strftime(buf[1], MAX_LENGTH, time_format, timeinfo[1]);
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cout << "+++ " << fp2 << '\t' << buf[1] << endl;
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}
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static void unifiedDiff(string fp1, string fp2) {
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typedef string elem;
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typedef vector<elem> sequence;
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typedef pair<elem, elemInfo> sesElem;
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ifstream Aifs(fp1.c_str());
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ifstream Bifs(fp2.c_str());
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elem buf;
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sequence ALines, BLines;
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while (getline(Aifs, buf)) {
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ALines.push_back(buf);
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}
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while (getline(Bifs, buf)) {
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BLines.push_back(buf);
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}
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Diff<elem> diff(ALines, BLines);
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diff.onHuge();
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// diff.onUnserious();
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diff.compose();
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// type unihunk definition test
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uniHunk<sesElem> hunk;
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if (diff.getEditDistance() > 0) {
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showStats(fp1, fp2); // show file info
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}
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diff.composeUnifiedHunks();
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diff.printUnifiedFormat();
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}
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int main(int argc, char *argv[]) {
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if (isFewArgs(argc)) {
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cerr << "Too few arguments." << endl;
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return -1;
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}
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string s1(argv[1]);
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string s2(argv[2]);
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bool fileExist = true;
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if (!isFileExist(s1)) {
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cerr << s1 << " is invalid." << endl;
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fileExist = false;
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}
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if (!isFileExist(s2)) {
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cerr << s2 << " is invalid." << endl;
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fileExist = false;
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}
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if (!fileExist) {
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return -1;
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}
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unifiedDiff(s1, s2);
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return 0;
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}
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