Make usage output (from bbstoreaccounts info and bbackupquery usage)

consistent and easier to read, with blocks, B/kB/MB/GB, % and an ASCII
bar graph.

1 files changed, 59 insertions, 0 deletions

diff --git a/lib/common/Utils.cpp b/lib/common/Utils.cpp
index 66fab21f..90421299 100644
--- a/lib/common/Utils.cpp
+++ b/lib/common/Utils.cpp
@@ -159,6 +159,65 @@ int ObjectExists(const std::string& rFilename)
 	return ((st.st_mode & S_IFDIR) == 0)?ObjectExists_File:ObjectExists_Dir;
 }
 
+std::string HumanReadableSize(int64_t Bytes)
+{
+	double readableValue = Bytes;
+	std::string units = " B";
 
+	if (readableValue > 1024)
+	{
+		readableValue /= 1024;
+		units = "kB";
+	}
+  
+	if (readableValue > 1024)
+	{
+		readableValue /= 1024;
+		units = "MB";
+	}
+  
+	if (readableValue > 1024)
+	{
+		readableValue /= 1024;
+		units = "GB";
+	}
+  
+	std::ostringstream result;
+	result << std::fixed << std::setprecision(2) << readableValue <<
+		" " << units;
+	return result.str();
+}
 
+std::string FormatUsageBar(int64_t Blocks, int64_t Bytes, int64_t Max)
+{
+	std::ostringstream result;
+	
+	// Bar graph
+	char bar[17];
+	unsigned int b = (int)((Bytes * (sizeof(bar)-1)) / Max);
+	if(b > sizeof(bar)-1) {b = sizeof(bar)-1;}
+	for(unsigned int l = 0; l < b; l++)
+	{
+		bar[l] = '*';
+	}
+	for(unsigned int l = b; l < sizeof(bar) - 1; l++)
+	{
+		bar[l] = ' ';
+	}
+	bar[sizeof(bar)-1] = '\0';
+	
+	result << std::fixed <<
+		std::setw(10) << Blocks << " blocks, " <<
+		std::setw(10) << HumanReadableSize(Bytes) << ", " << 
+		std::setw(3) << std::setprecision(0) <<
+		((Bytes*100)/Max) << "% |" << bar << "|";
+	
+	return result.str();
+}
 
+std::string FormatUsageLineStart(const std::string& rName)
+{
+	std::ostringstream result;	
+	result << std::setw(20) << std::right << rName << ": ";
+	return result.str();
+}