gergely/taskwarrior-2.x
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Enhancements - task diff

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- Implemented util.cpp/taskDiff to generate a proxy description of the
  difference between two tasks.
- Implemented unit tests for taskDiff.
This commit is contained in:
Paul Beckingham
2009-06-25 16:58:58 -04:00
parent c5d7b41d98
commit a56eeb9ec2
6 changed files with 186 additions and 7 deletions
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60
src/util.cpp
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@@ -26,6 +26,7 @@
////////////////////////////////////////////////////////////////////////////////
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <string>
#include <sys/types.h>
@@ -183,10 +184,10 @@ std::string formatBytes (size_t bytes)
{
char formatted[24];
if (bytes > 1000000000) sprintf (formatted, "%.1f GiB", (bytes / 1000000000.0));
else if (bytes > 1000000) sprintf (formatted, "%.1f MiB", (bytes / 1000000.0));
else if (bytes > 1000) sprintf (formatted, "%.1f KiB", (bytes / 1000.0));
else sprintf (formatted, "%d B", (int)bytes );
if (bytes >= 1000000000) sprintf (formatted, "%.1f GiB", (bytes / 1000000000.0));
else if (bytes >= 1000000) sprintf (formatted, "%.1f MiB", (bytes / 1000000.0));
else if (bytes >= 1000) sprintf (formatted, "%.1f KiB", (bytes / 1000.0));
else sprintf (formatted, "%d B", (int)bytes );
return commify (formatted);
}
@@ -426,3 +427,54 @@ void spit (const std::string& file, const std::string& contents)
}
////////////////////////////////////////////////////////////////////////////////
std::string taskDiff (const Task& before, const Task& after)
{
// Attributes are all there is, so figure the different attribute names
// between before and after.
std::vector <std::string> beforeAtts;
foreach (att, before)
beforeAtts.push_back (att->first);
std::vector <std::string> afterAtts;
foreach (att, after)
afterAtts.push_back (att->first);
std::vector <std::string> beforeOnly;
std::vector <std::string> afterOnly;
listDiff (beforeAtts, afterAtts, beforeOnly, afterOnly);
// Now start generating a description of the differences.
std::stringstream out;
foreach (name, beforeOnly)
out << *name
<< " was deleted."
<< std::endl;
foreach (name, afterOnly)
out << *name
<< " was set to '"
<< after.get (*name)
<< "'."
<< std::endl;
foreach (name, beforeAtts)
if (*name != "uuid" &&
after.get (*name) != "" &&
before.get (*name) != after.get (*name))
out << *name
<< " was changed from '"
<< before.get (*name)
<< "' to '"
<< after.get (*name)
<< "'."
<< std::endl;
// Can't just say nothing.
if (out.str ().length () == 0)
out << "No changes were made."
<< std::endl;
return out.str ();
}
////////////////////////////////////////////////////////////////////////////////