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[android] Collect one-time statistics about fonts. Should be removed in the next release.

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This commit is contained in:
Alex Zolotarev 2015-08-20 12:55:21 +03:00
parent e28500cdb9
commit 7aea83a91b
2 changed files with 81 additions and 1 deletions
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80
platform/platform.cpp
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@ -12,6 +12,19 @@
#include <errno.h>
// These includes are needed only for one-time fonts statistics collection on Android (see GetFontNames).
// @TODO(AlexZ): Remove in the next release.
#ifdef OMIM_OS_ANDROID
#include "std/thread.hpp"
#include "base/scope_guard.hpp"
#include "coding/compressed_bit_vector.hpp"
#include "platform/settings.hpp"
#include "3party/Alohalytics/src/alohalytics.h"
#include "3party/freetype/include/ft2build.h"
#include FT_FREETYPE_H
#endif
// static
Platform::EError Platform::ErrnoToError()
{
@ -105,6 +118,73 @@ void Platform::GetFontNames(FilesList & res) const
GetSystemFontNames(res);
LOG(LINFO, ("Available font files:", (res)));
#ifdef OMIM_OS_ANDROID
// This is one-time fonts statistics collection.
// @TODO(AlexZ): Remove it in the next release.
constexpr char const * kFontsStatisticsKey = "AndroidFontsInfo";
constexpr char const * kLogEventName = "AndroidFontsStats";
bool alreadyCollected = false;
if (!Settings::Get(kFontsStatisticsKey, alreadyCollected))
{
Settings::Set(kFontsStatisticsKey, true);
// Collect all data on a separate thread.
thread([]()
{
LOG(LDEBUG, ("Started fonts scan"));
FilesList files;
char const * kSystemFontsFolder = "/system/fonts/";
GetFilesByRegExp(kSystemFontsFolder, "\\.[ttf|otf|ttc]", files);
if (files.empty())
{
alohalytics::LogEvent(kLogEventName, {{"error", "No ttf/otc/ttc files in /system/fonts/ folder."}});
return;
}
LOG(LDEBUG, ("Fonts scan init FT Library"));
FT_Library library;
FT_Error error = FT_Init_FreeType(&library);
if (error)
{
alohalytics::LogEvent(kLogEventName, "Error initializing freetype " + std::to_string(error));
return;
}
MY_SCOPE_GUARD(lib_guard, [&library] () { FT_Done_FreeType(library); });
alohalytics::TStringMap fontsInfo;
for (auto const & file : files)
{
FT_Face face;
error = FT_New_Face(library, (kSystemFontsFolder + file).c_str(), 0, &face);
if (error)
{
fontsInfo[file] = "Error " + std::to_string(error);
return;
}
MY_SCOPE_GUARD(face_guard, [&face] () { FT_Done_Face(face); });
vector<uint32_t> charcodes;
{
charcodes.reserve(face->num_glyphs);
FT_UInt glyph_index;
FT_ULong charcode = FT_Get_First_Char(face, &glyph_index);
while (glyph_index != 0)
{
charcodes.push_back(static_cast<uint32_t>(charcode));
charcode = FT_Get_Next_Char(face, charcode, &glyph_index);
}
sort(charcodes.begin(), charcodes.end());
charcodes.erase(unique(charcodes.begin(), charcodes.end()), charcodes.end());
}
string serialBitVector;
MemWriter<string> writer(serialBitVector);
BuildCompressedBitVector(writer, charcodes);
fontsInfo[file] = serialBitVector;
}
// Send once all collected data.
alohalytics::LogEvent(kLogEventName, fontsInfo);
}).detach();
}
#endif
}
void Platform::GetFilesByExt(string const & directory, string const & ext, FilesList & outFiles)

2
platform/platform.pro
View file

@ -8,7 +8,7 @@ ROOT_DIR = ..
include($$ROOT_DIR/common.pri)
INCLUDEPATH += $$ROOT_DIR/3party/jansson/src
INCLUDEPATH += $$ROOT_DIR/3party/jansson/src $$ROOT_DIR/3party/freetype/include
!iphone*:!android*:!tizen {
QT *= core