initial commit

log.cc

@@ -0,0 +1,56 @@
+#include <sys/stat.h>
+
+#include <fstream>
+#include <ios>
+
+#include "log.h"
+#include "public.h"
+
+// gets the number of lines in a file. returns -1 if there was an error.
+int
+linesInFile(string path)
+{
+	ifstream file(path);
+	if (!file) {
+		return 1;
+	} else {
+		int lineNum = 0;
+		string line;
+
+		int num = 0;
+		while (getline(file, line))
+			num++;
+		return num;
+	}
+}
+
+// appends a line of text to the end of a given file. returns 0 if the file
+// existed, 1 if it didn't work
+int
+writeToFile(string path, string line, bool incLineNum)
+{
+	ofstream file;
+	struct stat s;
+
+	/*
+	 * It APPEARS this fixes our problem where the program has to be run twice to work correctly.
+	 */
+	if (stat(path.c_str(), &s) != 0) {
+		file.open(path, ios_base::out);
+		file << "SYSTEM: No log file found. Created a new one." << endl;
+		file.close();
+		linePos += 5; /* This seems to be what actually fixes everything. Not sure. */
+	}
+
+	file.open(path, ios_base::app);
+
+	if (file.is_open()) {
+		file << line << endl;
+		file.close();
+		//linePos++ // We might also want this here at some point?
+		return 0;
+	} else {
+		// do something if it didn't work
+		return 1; // i guess that's good enough for now
+	}
+}