From 7e706ed4853bfa0c71a67f95960800c627e692b5 Mon Sep 17 00:00:00 2001
From: "art1@andreas-romeyke.de" <art1@andreas-romeyke.de>
Date: Tue, 29 May 2018 17:40:47 +0200
Subject: [PATCH] - added first implementation

---
 src/lib/manifest.cpp | 55 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 src/lib/manifest.cpp

diff --git a/src/lib/manifest.cpp b/src/lib/manifest.cpp
new file mode 100644
index 0000000..63b83b5
--- /dev/null
+++ b/src/lib/manifest.cpp
@@ -0,0 +1,55 @@
+#include "manifest.hpp"
+#include <iostream>
+#include <fstream>
+#include <sstream>
+
+#include <boost/filesystem.hpp>
+//#include <filesystem> // c++17
+
+//namespace fs = std::filesystem;
+namespace fs = boost::filesystem;
+
+using namespace std;
+
+
+Manifest::Manifest( string basedir ) {
+  map<checksum_algorithms, string> possible_manifest_files;
+  possible_manifest_files[md5] = "manifest-md5.txt";
+  possible_manifest_files[sha1] = "manifest-sha1.txt";
+  for (map<checksum_algorithms, string>::iterator it=possible_manifest_files.begin(); it!=possible_manifest_files.end(); ++it) {
+    // debug
+    cout << it->first << " => " << it->second << endl;
+    // test if file exists
+    string filename = basedir + it->second;
+    fs::path p{ filename };
+    fs::file_status s = fs::status( p );
+    cout << "path "<< p.string() << endl;
+    cout << "is file: "<< fs::is_regular_file( s) << endl;
+    if (fs::is_regular_file( s)) {
+      Manifest::manifest_algorithm_files[it->first] = filename;
+    }
+  }
+}
+
+map<string,string> Manifest::get_checksum_file_pairs(checksum_algorithms alg) {
+  string filename = Manifest::manifest_algorithm_files[ alg ];
+  map<string,string> checksum_file_pairs;
+  cout << "using file " << filename << endl;
+  ifstream file;
+  file.open( filename );
+  if (file.is_open()) {
+    string line;
+    while (getline(file, line)) {
+      stringstream line_ss ( line );
+      string checksum;
+      string subfile;
+      line_ss >> checksum;
+      line_ss >> subfile;
+      checksum_file_pairs[checksum]=subfile;
+      cout << "checksum="<<checksum<<" file="<<subfile<<endl;
+    }
+    file.close();
+  }
+  return checksum_file_pairs;
+}
+// vim: set tabstop=4