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#include "package_manager.h"
#include <cstring>
#include <sstream>
using std::string;
namespace {
const string kPackagePrefix = "package:";
const string kPM_EXEC = "/system/bin/pm";
const string kDIR_KEY = "dataDir=";
}
namespace profiler {
PackageManager::PackageManager() : BashCommandRunner(kPM_EXEC) {}
bool PackageManager::GetAppBaseFolder(const string &package_name, string *path,
string *error_string) const {
string parameters;
parameters.append("path ");
parameters.append(package_name);
bool success = Run(parameters, error_string);
if (!success) {
return false;
}
// pm returns the path to the apk. We need to parse the response:
// package:/data/app/net.fabiensanglard.shmup-1/base.apk
// into
// /data/app/net.fabiensanglard.shmup-1
// Make sure input is well-formed.
if (path->find(kPackagePrefix) == string::npos) {
*path = "";
*error_string =
"Unable to retrieve app base folder for '" + package_name + ";";
return false;
}
// Remove prefix and prefix.
*path = path->substr(kPackagePrefix.size(), path->find_last_of("/"));
return true;
}
bool PackageManager::GetAppDataPath(const string &package_name, string *path,
string *error_string) const {
string parameters;
parameters.append("dump ");
parameters.append(package_name);
bool success = Run(parameters, error_string);
if (!success) {
return false;
}
std::string output;
std::istringstream stream(output);
string line;
while (std::getline(stream, line)) {
if (line.find(kDIR_KEY) != string::npos) {
*path = line.substr(line.find(kDIR_KEY) + kDIR_KEY.length());
return true;
}
}
*error_string = "Could not find key '" + kDIR_KEY + "'";
return false;
}
} // namespace profiler
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