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[thin_ls] add support for --format

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This commit is contained in:
Joe Thornber 2016-01-19 13:40:36 +00:00
parent 7ce4e451ff
commit 208fdd86e6
1 changed files with 63 additions and 8 deletions
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71
thin-provisioning/thin_ls.cc
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@ -42,9 +42,6 @@ using namespace thin_provisioning;
//----------------------------------------------------------------
namespace {
//------------------------------------------------
// FIXME: move to own file
class grid_layout {
public:
@ -419,7 +416,6 @@ namespace {
md->sb_.data_block_size_, UNIT_SECTOR));
break;
case TRANSACTION_ID:
grid.field(it->second.transaction_id_);
break;
@ -462,10 +458,64 @@ void
thin_ls_cmd::usage(std::ostream &out) const
{
out << "Usage: " << get_name() << " [options] {device|file}" << endl
<< "Options:" << endl
<< " {-h|--help}" << endl
<< " {-m|--metadata-snap}" << endl
<< " {-V|--version}" << endl;
<< "Options:\n"
<< " {-h|--help}\n"
<< " {-m|--metadata-snap}\n"
<< " {-o|--format <fields>}\n"
<< " {-V|--version}\n\n"
<< "where <fields> is a comma separated list from:\n"
<< " DEV_ID, MAPPED_BLOCKS, MAPPED_EXCL_BLOCKS, MAPPED_SHARED_BLOCKS,\n"
<< " MAPPED, EXCLUSIVE, SHARED, TRANSACTION_ID, CREATION_TIME,\n"
<< " SNAPSHOT_TIME"
<< endl;
}
vector<output_field> parse_fields(string const &str) {
vector<output_field> fields;
vector<string> tokens;
stringstream in(str);
string item;
while (getline(in, item, ','))
tokens.push_back(item);
vector<string>::const_iterator tok;
for (tok = tokens.begin(); tok != tokens.end(); ++tok) {
if (*tok == "DEV_ID")
fields.push_back(DEV_ID);
else if (*tok == "MAPPED_BLOCKS")
fields.push_back(MAPPED_BLOCKS);
else if (*tok == "MAPPED_EXCL_BLOCKS")
fields.push_back(MAPPED_EXCL_BLOCKS);
else if (*tok == "MAPPED_SHARED_BLOCKS")
fields.push_back(MAPPED_SHARED_BLOCKS);
else if (*tok == "MAPPED")
fields.push_back(MAPPED);
else if (*tok == "EXCLUSIVE")
fields.push_back(EXCLUSIVE);
else if (*tok == "SHARED")
fields.push_back(SHARED);
else if (*tok == "TRANSACTION_ID")
fields.push_back(TRANSACTION_ID);
else if (*tok == "CREATION_TIME")
fields.push_back(CREATION_TIME);
else if (*tok == "SNAPSHOT_TIME")
fields.push_back(SNAPSHOT_TIME);
}
return fields;
}
int
@ -479,6 +529,7 @@ thin_ls_cmd::run(int argc, char **argv)
{ "help", no_argument, NULL, 'h'},
{ "metadata-snap", no_argument, NULL, 'm' },
{ "version", no_argument, NULL, 'V'},
{ "format", required_argument, NULL, 'o' },
{ NULL, no_argument, NULL, 0 }
};
@ -492,6 +543,10 @@ thin_ls_cmd::run(int argc, char **argv)
flags.use_metadata_snap = true;
break;
case 'o':
flags.fields = parse_fields(optarg);
break;
case 'V':
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;