| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <dirent.h> |
| #include <errno.h> |
| #include <inttypes.h> |
| #include <limits.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/time.h> |
| #include <sys/types.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include <utime.h> |
| |
| #include <functional> |
| #include <memory> |
| #include <vector> |
| |
| #include "sysdeps.h" |
| |
| #include "adb.h" |
| #include "adb_client.h" |
| #include "adb_io.h" |
| #include "adb_utils.h" |
| #include "file_sync_service.h" |
| #include "line_printer.h" |
| |
| #include <android-base/file.h> |
| #include <android-base/strings.h> |
| #include <android-base/stringprintf.h> |
| |
| struct syncsendbuf { |
| unsigned id; |
| unsigned size; |
| char data[SYNC_DATA_MAX]; |
| }; |
| |
| static void ensure_trailing_separators(std::string& local_path, std::string& remote_path) { |
| if (!adb_is_separator(local_path.back())) { |
| local_path.push_back(OS_PATH_SEPARATOR); |
| } |
| if (remote_path.back() != '/') { |
| remote_path.push_back('/'); |
| } |
| } |
| |
| struct copyinfo { |
| std::string lpath; |
| std::string rpath; |
| unsigned int time = 0; |
| unsigned int mode; |
| uint64_t size = 0; |
| bool skip = false; |
| |
| copyinfo(const std::string& local_path, |
| const std::string& remote_path, |
| const std::string& name, |
| unsigned int mode) |
| : lpath(local_path), rpath(remote_path), mode(mode) { |
| ensure_trailing_separators(lpath, rpath); |
| lpath.append(name); |
| rpath.append(name); |
| if (S_ISDIR(mode)) { |
| ensure_trailing_separators(lpath, rpath); |
| } |
| } |
| }; |
| |
| class SyncConnection { |
| public: |
| SyncConnection() |
| : total_bytes_(0), |
| start_time_ms_(CurrentTimeMs()), |
| expected_total_bytes_(0), |
| expect_multiple_files_(false) { |
| max = SYNC_DATA_MAX; // TODO: decide at runtime. |
| |
| std::string error; |
| fd = adb_connect("sync:", &error); |
| if (fd < 0) { |
| Error("connect failed: %s", error.c_str()); |
| } |
| } |
| |
| ~SyncConnection() { |
| if (!IsValid()) return; |
| |
| if (SendQuit()) { |
| // We sent a quit command, so the server should be doing orderly |
| // shutdown soon. But if we encountered an error while we were using |
| // the connection, the server might still be sending data (before |
| // doing orderly shutdown), in which case we won't wait for all of |
| // the data nor the coming orderly shutdown. In the common success |
| // case, this will wait for the server to do orderly shutdown. |
| ReadOrderlyShutdown(fd); |
| } |
| adb_close(fd); |
| |
| line_printer_.KeepInfoLine(); |
| } |
| |
| bool IsValid() { return fd >= 0; } |
| |
| bool SendRequest(int id, const char* path_and_mode) { |
| size_t path_length = strlen(path_and_mode); |
| if (path_length > 1024) { |
| Error("SendRequest failed: path too long: %zu", path_length); |
| errno = ENAMETOOLONG; |
| return false; |
| } |
| |
| // Sending header and payload in a single write makes a noticeable |
| // difference to "adb sync" performance. |
| std::vector<char> buf(sizeof(SyncRequest) + path_length); |
| SyncRequest* req = reinterpret_cast<SyncRequest*>(&buf[0]); |
| req->id = id; |
| req->path_length = path_length; |
| char* data = reinterpret_cast<char*>(req + 1); |
| memcpy(data, path_and_mode, path_length); |
| |
| return WriteFdExactly(fd, &buf[0], buf.size()); |
| } |
| |
| // Sending header, payload, and footer in a single write makes a huge |
| // difference to "adb sync" performance. |
| bool SendSmallFile(const char* path_and_mode, |
| const char* lpath, const char* rpath, |
| unsigned mtime, |
| const char* data, size_t data_length) { |
| size_t path_length = strlen(path_and_mode); |
| if (path_length > 1024) { |
| Error("SendSmallFile failed: path too long: %zu", path_length); |
| errno = ENAMETOOLONG; |
| return false; |
| } |
| |
| std::vector<char> buf(sizeof(SyncRequest) + path_length + |
| sizeof(SyncRequest) + data_length + |
| sizeof(SyncRequest)); |
| char* p = &buf[0]; |
| |
| SyncRequest* req_send = reinterpret_cast<SyncRequest*>(p); |
| req_send->id = ID_SEND; |
| req_send->path_length = path_length; |
| p += sizeof(SyncRequest); |
| memcpy(p, path_and_mode, path_length); |
| p += path_length; |
| |
| SyncRequest* req_data = reinterpret_cast<SyncRequest*>(p); |
| req_data->id = ID_DATA; |
| req_data->path_length = data_length; |
| p += sizeof(SyncRequest); |
| memcpy(p, data, data_length); |
| p += data_length; |
| |
| SyncRequest* req_done = reinterpret_cast<SyncRequest*>(p); |
| req_done->id = ID_DONE; |
| req_done->path_length = mtime; |
| p += sizeof(SyncRequest); |
| |
| WriteOrDie(lpath, rpath, &buf[0], (p - &buf[0])); |
| total_bytes_ += data_length; |
| return true; |
| } |
| |
| bool SendLargeFile(const char* path_and_mode, |
| const char* lpath, const char* rpath, |
| unsigned mtime) { |
| if (!SendRequest(ID_SEND, path_and_mode)) { |
| Error("failed to send ID_SEND message '%s': %s", path_and_mode, strerror(errno)); |
| return false; |
| } |
| |
| struct stat st; |
| if (stat(lpath, &st) == -1) { |
| Error("cannot stat '%s': %s", lpath, strerror(errno)); |
| return false; |
| } |
| |
| uint64_t total_size = st.st_size; |
| uint64_t bytes_copied = 0; |
| |
| int lfd = adb_open(lpath, O_RDONLY); |
| if (lfd < 0) { |
| Error("opening '%s' locally failed: %s", lpath, strerror(errno)); |
| return false; |
| } |
| |
| syncsendbuf sbuf; |
| sbuf.id = ID_DATA; |
| while (true) { |
| int bytes_read = adb_read(lfd, sbuf.data, max); |
| if (bytes_read == -1) { |
| Error("reading '%s' locally failed: %s", lpath, strerror(errno)); |
| adb_close(lfd); |
| return false; |
| } else if (bytes_read == 0) { |
| break; |
| } |
| |
| sbuf.size = bytes_read; |
| WriteOrDie(lpath, rpath, &sbuf, sizeof(SyncRequest) + bytes_read); |
| |
| total_bytes_ += bytes_read; |
| bytes_copied += bytes_read; |
| |
| ReportProgress(rpath, bytes_copied, total_size); |
| } |
| |
| adb_close(lfd); |
| |
| syncmsg msg; |
| msg.data.id = ID_DONE; |
| msg.data.size = mtime; |
| return WriteOrDie(lpath, rpath, &msg.data, sizeof(msg.data)); |
| } |
| |
| bool CopyDone(const char* from, const char* to) { |
| syncmsg msg; |
| if (!ReadFdExactly(fd, &msg.status, sizeof(msg.status))) { |
| Error("failed to copy '%s' to '%s': no ID_DONE: %s", from, to, strerror(errno)); |
| return false; |
| } |
| if (msg.status.id == ID_OKAY) { |
| return true; |
| } |
| if (msg.status.id != ID_FAIL) { |
| Error("failed to copy '%s' to '%s': unknown reason %d", from, to, msg.status.id); |
| return false; |
| } |
| return ReportCopyFailure(from, to, msg); |
| } |
| |
| bool ReportCopyFailure(const char* from, const char* to, const syncmsg& msg) { |
| std::vector<char> buf(msg.status.msglen + 1); |
| if (!ReadFdExactly(fd, &buf[0], msg.status.msglen)) { |
| Error("failed to copy '%s' to '%s'; failed to read reason (!): %s", |
| from, to, strerror(errno)); |
| return false; |
| } |
| buf[msg.status.msglen] = 0; |
| Error("failed to copy '%s' to '%s': %s", from, to, &buf[0]); |
| return false; |
| } |
| |
| std::string TransferRate() { |
| uint64_t ms = CurrentTimeMs() - start_time_ms_; |
| if (total_bytes_ == 0 || ms == 0) return ""; |
| |
| double s = static_cast<double>(ms) / 1000LL; |
| double rate = (static_cast<double>(total_bytes_) / s) / (1024*1024); |
| return android::base::StringPrintf(" %.1f MB/s (%" PRId64 " bytes in %.3fs)", |
| rate, total_bytes_, s); |
| } |
| |
| void ReportProgress(const char* file, uint64_t file_copied_bytes, uint64_t file_total_bytes) { |
| char overall_percentage_str[5] = "?"; |
| if (expected_total_bytes_ != 0) { |
| int overall_percentage = static_cast<int>(total_bytes_ * 100 / expected_total_bytes_); |
| // If we're pulling symbolic links, we'll pull the target of the link rather than |
| // just create a local link, and that will cause us to go over 100%. |
| if (overall_percentage <= 100) { |
| snprintf(overall_percentage_str, sizeof(overall_percentage_str), "%d%%", |
| overall_percentage); |
| } |
| } |
| |
| if (file_copied_bytes > file_total_bytes || file_total_bytes == 0) { |
| // This case can happen if we're racing against something that wrote to the file |
| // between our stat and our read, or if we're reading a magic file that lies about |
| // its size. Just show how much we've copied. |
| Printf("[%4s] %s: %" PRId64 "/?", overall_percentage_str, file, file_copied_bytes); |
| } else { |
| // If we're transferring multiple files, we want to know how far through the current |
| // file we are, as well as the overall percentage. |
| if (expect_multiple_files_) { |
| int file_percentage = static_cast<int>(file_copied_bytes * 100 / file_total_bytes); |
| Printf("[%4s] %s: %d%%", overall_percentage_str, file, file_percentage); |
| } else { |
| Printf("[%4s] %s", overall_percentage_str, file); |
| } |
| } |
| } |
| |
| void Printf(const char* fmt, ...) __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 2, 3))) { |
| std::string s; |
| |
| va_list ap; |
| va_start(ap, fmt); |
| android::base::StringAppendV(&s, fmt, ap); |
| va_end(ap); |
| |
| line_printer_.Print(s, LinePrinter::INFO); |
| } |
| |
| void Error(const char* fmt, ...) __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 2, 3))) { |
| std::string s = "adb: error: "; |
| |
| va_list ap; |
| va_start(ap, fmt); |
| android::base::StringAppendV(&s, fmt, ap); |
| va_end(ap); |
| |
| line_printer_.Print(s, LinePrinter::ERROR); |
| } |
| |
| void Warning(const char* fmt, ...) __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 2, 3))) { |
| std::string s = "adb: warning: "; |
| |
| va_list ap; |
| va_start(ap, fmt); |
| android::base::StringAppendV(&s, fmt, ap); |
| va_end(ap); |
| |
| line_printer_.Print(s, LinePrinter::WARNING); |
| } |
| |
| void ComputeExpectedTotalBytes(const std::vector<copyinfo>& file_list) { |
| expected_total_bytes_ = 0; |
| for (const copyinfo& ci : file_list) { |
| // Unfortunately, this doesn't work for symbolic links, because we'll copy the |
| // target of the link rather than just creating a link. (But ci.size is the link size.) |
| if (!ci.skip) expected_total_bytes_ += ci.size; |
| } |
| expect_multiple_files_ = true; |
| } |
| |
| void SetExpectedTotalBytes(uint64_t expected_total_bytes) { |
| expected_total_bytes_ = expected_total_bytes; |
| expect_multiple_files_ = false; |
| } |
| |
| uint64_t total_bytes_; |
| |
| // TODO: add a char[max] buffer here, to replace syncsendbuf... |
| int fd; |
| size_t max; |
| |
| private: |
| uint64_t start_time_ms_; |
| |
| uint64_t expected_total_bytes_; |
| bool expect_multiple_files_; |
| |
| LinePrinter line_printer_; |
| |
| bool SendQuit() { |
| return SendRequest(ID_QUIT, ""); // TODO: add a SendResponse? |
| } |
| |
| bool WriteOrDie(const char* from, const char* to, const void* data, size_t data_length) { |
| if (!WriteFdExactly(fd, data, data_length)) { |
| if (errno == ECONNRESET) { |
| // Assume adbd told us why it was closing the connection, and |
| // try to read failure reason from adbd. |
| syncmsg msg; |
| if (!ReadFdExactly(fd, &msg.status, sizeof(msg.status))) { |
| Error("failed to copy '%s' to '%s': no response: %s", from, to, strerror(errno)); |
| } else if (msg.status.id != ID_FAIL) { |
| Error("failed to copy '%s' to '%s': not ID_FAIL: %d", from, to, msg.status.id); |
| } else { |
| ReportCopyFailure(from, to, msg); |
| } |
| } else { |
| Error("%zu-byte write failed: %s", data_length, strerror(errno)); |
| } |
| _exit(1); |
| } |
| return true; |
| } |
| |
| static uint64_t CurrentTimeMs() { |
| struct timeval tv; |
| gettimeofday(&tv, 0); // (Not clock_gettime because of Mac/Windows.) |
| return static_cast<uint64_t>(tv.tv_sec) * 1000 + tv.tv_usec / 1000; |
| } |
| }; |
| |
| typedef void (sync_ls_cb)(unsigned mode, unsigned size, unsigned time, const char* name); |
| |
| static bool sync_ls(SyncConnection& sc, const char* path, |
| std::function<sync_ls_cb> func) { |
| if (!sc.SendRequest(ID_LIST, path)) return false; |
| |
| while (true) { |
| syncmsg msg; |
| if (!ReadFdExactly(sc.fd, &msg.dent, sizeof(msg.dent))) return false; |
| |
| if (msg.dent.id == ID_DONE) return true; |
| if (msg.dent.id != ID_DENT) return false; |
| |
| size_t len = msg.dent.namelen; |
| if (len > 256) return false; // TODO: resize buffer? continue? |
| |
| char buf[257]; |
| if (!ReadFdExactly(sc.fd, buf, len)) return false; |
| buf[len] = 0; |
| |
| func(msg.dent.mode, msg.dent.size, msg.dent.time, buf); |
| } |
| } |
| |
| static bool sync_finish_stat(SyncConnection& sc, unsigned int* timestamp, |
| unsigned int* mode, unsigned int* size) { |
| syncmsg msg; |
| if (!ReadFdExactly(sc.fd, &msg.stat, sizeof(msg.stat)) || msg.stat.id != ID_STAT) { |
| return false; |
| } |
| |
| if (timestamp) *timestamp = msg.stat.time; |
| if (mode) *mode = msg.stat.mode; |
| if (size) *size = msg.stat.size; |
| |
| return true; |
| } |
| |
| static bool sync_stat(SyncConnection& sc, const char* path, |
| unsigned int* timestamp, unsigned int* mode, unsigned int* size) { |
| return sc.SendRequest(ID_STAT, path) && sync_finish_stat(sc, timestamp, mode, size); |
| } |
| |
| static bool sync_send(SyncConnection& sc, const char* lpath, const char* rpath, |
| unsigned mtime, mode_t mode) |
| { |
| std::string path_and_mode = android::base::StringPrintf("%s,%d", rpath, mode); |
| |
| if (S_ISLNK(mode)) { |
| #if !defined(_WIN32) |
| char buf[PATH_MAX]; |
| ssize_t data_length = readlink(lpath, buf, PATH_MAX - 1); |
| if (data_length == -1) { |
| sc.Error("readlink '%s' failed: %s", lpath, strerror(errno)); |
| return false; |
| } |
| buf[data_length++] = '\0'; |
| |
| if (!sc.SendSmallFile(path_and_mode.c_str(), lpath, rpath, mtime, buf, data_length)) { |
| return false; |
| } |
| return sc.CopyDone(lpath, rpath); |
| #endif |
| } |
| |
| if (!S_ISREG(mode)) { |
| sc.Error("local file '%s' has unsupported mode: 0o%o", lpath, mode); |
| return false; |
| } |
| |
| struct stat st; |
| if (stat(lpath, &st) == -1) { |
| sc.Error("failed to stat local file '%s': %s", lpath, strerror(errno)); |
| return false; |
| } |
| if (st.st_size < SYNC_DATA_MAX) { |
| std::string data; |
| if (!android::base::ReadFileToString(lpath, &data)) { |
| sc.Error("failed to read all of '%s': %s", lpath, strerror(errno)); |
| return false; |
| } |
| if (!sc.SendSmallFile(path_and_mode.c_str(), lpath, rpath, mtime, |
| data.data(), data.size())) { |
| return false; |
| } |
| } else { |
| if (!sc.SendLargeFile(path_and_mode.c_str(), lpath, rpath, mtime)) { |
| return false; |
| } |
| } |
| return sc.CopyDone(lpath, rpath); |
| } |
| |
| static bool sync_recv(SyncConnection& sc, const char* rpath, const char* lpath) { |
| unsigned size = 0; |
| if (!sync_stat(sc, rpath, nullptr, nullptr, &size)) return false; |
| |
| if (!sc.SendRequest(ID_RECV, rpath)) return false; |
| |
| adb_unlink(lpath); |
| const std::string dirpath = adb_dirname(lpath); |
| if (!mkdirs(dirpath.c_str())) { |
| sc.Error("failed to create parent directory '%s': %s", dirpath.c_str(), strerror(errno)); |
| return false; |
| } |
| |
| int lfd = adb_creat(lpath, 0644); |
| if (lfd < 0) { |
| sc.Error("cannot create '%s': %s", lpath, strerror(errno)); |
| return false; |
| } |
| |
| uint64_t bytes_copied = 0; |
| while (true) { |
| syncmsg msg; |
| if (!ReadFdExactly(sc.fd, &msg.data, sizeof(msg.data))) { |
| adb_close(lfd); |
| adb_unlink(lpath); |
| return false; |
| } |
| |
| if (msg.data.id == ID_DONE) break; |
| |
| if (msg.data.id != ID_DATA) { |
| adb_close(lfd); |
| adb_unlink(lpath); |
| sc.ReportCopyFailure(rpath, lpath, msg); |
| return false; |
| } |
| |
| if (msg.data.size > sc.max) { |
| sc.Error("msg.data.size too large: %u (max %zu)", msg.data.size, sc.max); |
| adb_close(lfd); |
| adb_unlink(lpath); |
| return false; |
| } |
| |
| char buffer[SYNC_DATA_MAX]; |
| if (!ReadFdExactly(sc.fd, buffer, msg.data.size)) { |
| adb_close(lfd); |
| adb_unlink(lpath); |
| return false; |
| } |
| |
| if (!WriteFdExactly(lfd, buffer, msg.data.size)) { |
| sc.Error("cannot write '%s': %s", lpath, strerror(errno)); |
| adb_close(lfd); |
| adb_unlink(lpath); |
| return false; |
| } |
| |
| sc.total_bytes_ += msg.data.size; |
| |
| bytes_copied += msg.data.size; |
| |
| sc.ReportProgress(rpath, bytes_copied, size); |
| } |
| |
| adb_close(lfd); |
| return true; |
| } |
| |
| bool do_sync_ls(const char* path) { |
| SyncConnection sc; |
| if (!sc.IsValid()) return false; |
| |
| return sync_ls(sc, path, [](unsigned mode, unsigned size, unsigned time, |
| const char* name) { |
| printf("%08x %08x %08x %s\n", mode, size, time, name); |
| }); |
| } |
| |
| static bool IsDotOrDotDot(const char* name) { |
| return name[0] == '.' && (name[1] == '\0' || (name[1] == '.' && name[2] == '\0')); |
| } |
| |
| static bool local_build_list(SyncConnection& sc, std::vector<copyinfo>* file_list, |
| const std::string& lpath, |
| const std::string& rpath) { |
| std::vector<copyinfo> dirlist; |
| std::unique_ptr<DIR, int (*)(DIR*)> dir(opendir(lpath.c_str()), closedir); |
| if (!dir) { |
| sc.Error("cannot open '%s': %s", lpath.c_str(), strerror(errno)); |
| return false; |
| } |
| |
| bool empty_dir = true; |
| dirent* de; |
| while ((de = readdir(dir.get()))) { |
| if (IsDotOrDotDot(de->d_name)) { |
| continue; |
| } |
| |
| empty_dir = false; |
| std::string stat_path = lpath + de->d_name; |
| |
| struct stat st; |
| if (lstat(stat_path.c_str(), &st) == -1) { |
| sc.Error("cannot lstat '%s': %s", stat_path.c_str(), |
| strerror(errno)); |
| continue; |
| } |
| |
| copyinfo ci(lpath, rpath, de->d_name, st.st_mode); |
| if (S_ISDIR(st.st_mode)) { |
| dirlist.push_back(ci); |
| } else { |
| if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode)) { |
| sc.Error("skipping special file '%s'", lpath.c_str()); |
| ci.skip = true; |
| } else { |
| ci.time = st.st_mtime; |
| ci.size = st.st_size; |
| } |
| file_list->push_back(ci); |
| } |
| } |
| |
| // Close this directory and recurse. |
| dir.reset(); |
| |
| // Add the current directory to the list if it was empty, to ensure that |
| // it gets created. |
| if (empty_dir) { |
| // TODO(b/25566053): Make pushing empty directories work. |
| // TODO(b/25457350): We don't preserve permissions on directories. |
| sc.Warning("skipping empty directory '%s'", lpath.c_str()); |
| copyinfo ci(adb_dirname(lpath), adb_dirname(rpath), adb_basename(lpath), S_IFDIR); |
| ci.skip = true; |
| file_list->push_back(ci); |
| return true; |
| } |
| |
| for (const copyinfo& ci : dirlist) { |
| local_build_list(sc, file_list, ci.lpath, ci.rpath); |
| } |
| |
| return true; |
| } |
| |
| static bool copy_local_dir_remote(SyncConnection& sc, std::string lpath, |
| std::string rpath, bool check_timestamps, |
| bool list_only) { |
| // Make sure that both directory paths end in a slash. |
| // Both paths are known to be nonempty, so we don't need to check. |
| ensure_trailing_separators(lpath, rpath); |
| |
| // Recursively build the list of files to copy. |
| std::vector<copyinfo> file_list; |
| int pushed = 0; |
| int skipped = 0; |
| if (!local_build_list(sc, &file_list, lpath, rpath)) { |
| return false; |
| } |
| |
| if (check_timestamps) { |
| for (const copyinfo& ci : file_list) { |
| if (!sc.SendRequest(ID_STAT, ci.rpath.c_str())) { |
| return false; |
| } |
| } |
| for (copyinfo& ci : file_list) { |
| unsigned int timestamp, mode, size; |
| if (!sync_finish_stat(sc, ×tamp, &mode, &size)) { |
| return false; |
| } |
| if (size == ci.size) { |
| // For links, we cannot update the atime/mtime. |
| if ((S_ISREG(ci.mode & mode) && timestamp == ci.time) || |
| (S_ISLNK(ci.mode & mode) && timestamp >= ci.time)) { |
| ci.skip = true; |
| } |
| } |
| } |
| } |
| |
| sc.ComputeExpectedTotalBytes(file_list); |
| |
| for (const copyinfo& ci : file_list) { |
| if (!ci.skip) { |
| if (list_only) { |
| sc.Error("would push: %s -> %s", ci.lpath.c_str(), ci.rpath.c_str()); |
| } else { |
| if (!sync_send(sc, ci.lpath.c_str(), ci.rpath.c_str(), ci.time, ci.mode)) { |
| return false; |
| } |
| } |
| pushed++; |
| } else { |
| skipped++; |
| } |
| } |
| |
| sc.Printf("%s: %d file%s pushed. %d file%s skipped.%s", rpath.c_str(), |
| pushed, (pushed == 1) ? "" : "s", skipped, |
| (skipped == 1) ? "" : "s", sc.TransferRate().c_str()); |
| return true; |
| } |
| |
| bool do_sync_push(const std::vector<const char*>& srcs, const char* dst) { |
| SyncConnection sc; |
| if (!sc.IsValid()) return false; |
| |
| bool success = true; |
| unsigned dst_mode; |
| if (!sync_stat(sc, dst, nullptr, &dst_mode, nullptr)) return false; |
| bool dst_exists = (dst_mode != 0); |
| bool dst_isdir = S_ISDIR(dst_mode); |
| |
| if (!dst_isdir) { |
| if (srcs.size() > 1) { |
| sc.Error("target '%s' is not a directory", dst); |
| return false; |
| } else { |
| size_t dst_len = strlen(dst); |
| |
| // A path that ends with a slash doesn't have to be a directory if |
| // it doesn't exist yet. |
| if (dst[dst_len - 1] == '/' && dst_exists) { |
| sc.Error("failed to access '%s': Not a directory", dst); |
| return false; |
| } |
| } |
| } |
| |
| for (const char* src_path : srcs) { |
| const char* dst_path = dst; |
| struct stat st; |
| if (stat(src_path, &st) == -1) { |
| sc.Error("cannot stat '%s': %s", src_path, strerror(errno)); |
| success = false; |
| continue; |
| } |
| |
| if (S_ISDIR(st.st_mode)) { |
| std::string dst_dir = dst; |
| |
| // If the destination path existed originally, the source directory |
| // should be copied as a child of the destination. |
| if (dst_exists) { |
| if (!dst_isdir) { |
| sc.Error("target '%s' is not a directory", dst); |
| return false; |
| } |
| // dst is a POSIX path, so we don't want to use the sysdeps |
| // helpers here. |
| if (dst_dir.back() != '/') { |
| dst_dir.push_back('/'); |
| } |
| dst_dir.append(adb_basename(src_path)); |
| } |
| |
| success &= copy_local_dir_remote(sc, src_path, dst_dir.c_str(), |
| false, false); |
| continue; |
| } |
| |
| std::string path_holder; |
| if (dst_isdir) { |
| // If we're copying a local file to a remote directory, |
| // we really want to copy to remote_dir + "/" + local_filename. |
| path_holder = android::base::StringPrintf( |
| "%s/%s", dst_path, adb_basename(src_path).c_str()); |
| dst_path = path_holder.c_str(); |
| } |
| sc.SetExpectedTotalBytes(st.st_size); |
| success &= sync_send(sc, src_path, dst_path, st.st_mtime, st.st_mode); |
| } |
| |
| return success; |
| } |
| |
| static bool remote_symlink_isdir(SyncConnection& sc, const std::string& rpath) { |
| unsigned mode; |
| std::string dir_path = rpath; |
| dir_path.push_back('/'); |
| if (!sync_stat(sc, dir_path.c_str(), nullptr, &mode, nullptr)) { |
| sc.Error("failed to stat remote symlink '%s'", dir_path.c_str()); |
| return false; |
| } |
| return S_ISDIR(mode); |
| } |
| |
| static bool remote_build_list(SyncConnection& sc, |
| std::vector<copyinfo>* file_list, |
| const std::string& rpath, |
| const std::string& lpath) { |
| std::vector<copyinfo> dirlist; |
| std::vector<copyinfo> linklist; |
| bool empty_dir = true; |
| |
| // Put the files/dirs in rpath on the lists. |
| auto callback = [&](unsigned mode, unsigned size, unsigned time, const char* name) { |
| if (IsDotOrDotDot(name)) { |
| return; |
| } |
| |
| // We found a child that isn't '.' or '..'. |
| empty_dir = false; |
| |
| copyinfo ci(lpath, rpath, name, mode); |
| if (S_ISDIR(mode)) { |
| dirlist.push_back(ci); |
| } else if (S_ISLNK(mode)) { |
| linklist.push_back(ci); |
| } else { |
| ci.time = time; |
| ci.size = size; |
| file_list->push_back(ci); |
| } |
| }; |
| |
| if (!sync_ls(sc, rpath.c_str(), callback)) { |
| return false; |
| } |
| |
| // Add the current directory to the list if it was empty, to ensure that it gets created. |
| if (empty_dir) { |
| copyinfo ci(adb_dirname(lpath), adb_dirname(rpath), adb_basename(rpath), S_IFDIR); |
| file_list->push_back(ci); |
| return true; |
| } |
| |
| // Check each symlink we found to see whether it's a file or directory. |
| for (copyinfo& link_ci : linklist) { |
| if (remote_symlink_isdir(sc, link_ci.rpath)) { |
| dirlist.emplace_back(std::move(link_ci)); |
| } else { |
| file_list->emplace_back(std::move(link_ci)); |
| } |
| } |
| |
| // Recurse into each directory we found. |
| while (!dirlist.empty()) { |
| copyinfo current = dirlist.back(); |
| dirlist.pop_back(); |
| if (!remote_build_list(sc, file_list, current.rpath, current.lpath)) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| static int set_time_and_mode(const std::string& lpath, time_t time, |
| unsigned int mode) { |
| struct utimbuf times = { time, time }; |
| int r1 = utime(lpath.c_str(), ×); |
| |
| /* use umask for permissions */ |
| mode_t mask = umask(0000); |
| umask(mask); |
| int r2 = chmod(lpath.c_str(), mode & ~mask); |
| |
| return r1 ? r1 : r2; |
| } |
| |
| static bool copy_remote_dir_local(SyncConnection& sc, std::string rpath, |
| std::string lpath, bool copy_attrs) { |
| // Make sure that both directory paths end in a slash. |
| // Both paths are known to be nonempty, so we don't need to check. |
| ensure_trailing_separators(lpath, rpath); |
| |
| // Recursively build the list of files to copy. |
| sc.Printf("pull: building file list..."); |
| std::vector<copyinfo> file_list; |
| if (!remote_build_list(sc, &file_list, rpath.c_str(), lpath.c_str())) { |
| return false; |
| } |
| |
| sc.ComputeExpectedTotalBytes(file_list); |
| |
| int pulled = 0; |
| int skipped = 0; |
| for (const copyinfo &ci : file_list) { |
| if (!ci.skip) { |
| if (S_ISDIR(ci.mode)) { |
| // Entry is for an empty directory, create it and continue. |
| // TODO(b/25457350): We don't preserve permissions on directories. |
| if (!mkdirs(ci.lpath)) { |
| sc.Error("failed to create directory '%s': %s", |
| ci.lpath.c_str(), strerror(errno)); |
| return false; |
| } |
| pulled++; |
| continue; |
| } |
| |
| if (!sync_recv(sc, ci.rpath.c_str(), ci.lpath.c_str())) { |
| return false; |
| } |
| |
| if (copy_attrs && set_time_and_mode(ci.lpath, ci.time, ci.mode)) { |
| return false; |
| } |
| pulled++; |
| } else { |
| skipped++; |
| } |
| } |
| |
| sc.Printf("%s: %d file%s pulled. %d file%s skipped.%s", rpath.c_str(), |
| pulled, (pulled == 1) ? "" : "s", skipped, |
| (skipped == 1) ? "" : "s", sc.TransferRate().c_str()); |
| return true; |
| } |
| |
| bool do_sync_pull(const std::vector<const char*>& srcs, const char* dst, |
| bool copy_attrs) { |
| SyncConnection sc; |
| if (!sc.IsValid()) return false; |
| |
| bool success = true; |
| struct stat st; |
| bool dst_exists = true; |
| |
| if (stat(dst, &st) == -1) { |
| dst_exists = false; |
| |
| // If we're only pulling one path, the destination path might point to |
| // a path that doesn't exist yet. |
| if (srcs.size() == 1 && errno == ENOENT) { |
| // However, its parent must exist. |
| struct stat parent_st; |
| if (stat(adb_dirname(dst).c_str(), &parent_st) == -1) { |
| sc.Error("cannot create file/directory '%s': %s", dst, strerror(errno)); |
| return false; |
| } |
| } else { |
| sc.Error("failed to access '%s': %s", dst, strerror(errno)); |
| return false; |
| } |
| } |
| |
| bool dst_isdir = dst_exists && S_ISDIR(st.st_mode); |
| if (!dst_isdir) { |
| if (srcs.size() > 1) { |
| sc.Error("target '%s' is not a directory", dst); |
| return false; |
| } else { |
| size_t dst_len = strlen(dst); |
| |
| // A path that ends with a slash doesn't have to be a directory if |
| // it doesn't exist yet. |
| if (adb_is_separator(dst[dst_len - 1]) && dst_exists) { |
| sc.Error("failed to access '%s': Not a directory", dst); |
| return false; |
| } |
| } |
| } |
| |
| for (const char* src_path : srcs) { |
| const char* dst_path = dst; |
| unsigned src_mode, src_time, src_size; |
| if (!sync_stat(sc, src_path, &src_time, &src_mode, &src_size)) { |
| sc.Error("failed to stat remote object '%s'", src_path); |
| return false; |
| } |
| if (src_mode == 0) { |
| sc.Error("remote object '%s' does not exist", src_path); |
| success = false; |
| continue; |
| } |
| |
| bool src_isdir = S_ISDIR(src_mode); |
| if (S_ISLNK(src_mode)) { |
| src_isdir = remote_symlink_isdir(sc, src_path); |
| } |
| |
| if ((src_mode & (S_IFREG | S_IFDIR | S_IFBLK | S_IFCHR)) == 0) { |
| sc.Error("skipping remote object '%s' (mode = 0o%o)", src_path, src_mode); |
| continue; |
| } |
| |
| if (src_isdir) { |
| std::string dst_dir = dst; |
| |
| // If the destination path existed originally, the source directory |
| // should be copied as a child of the destination. |
| if (dst_exists) { |
| if (!dst_isdir) { |
| sc.Error("target '%s' is not a directory", dst); |
| return false; |
| } |
| if (!adb_is_separator(dst_dir.back())) { |
| dst_dir.push_back(OS_PATH_SEPARATOR); |
| } |
| dst_dir.append(adb_basename(src_path)); |
| } |
| |
| success &= copy_remote_dir_local(sc, src_path, dst_dir.c_str(), copy_attrs); |
| continue; |
| } else { |
| std::string path_holder; |
| if (dst_isdir) { |
| // If we're copying a remote file to a local directory, we |
| // really want to copy to local_dir + OS_PATH_SEPARATOR + |
| // basename(remote). |
| path_holder = android::base::StringPrintf("%s%c%s", dst_path, OS_PATH_SEPARATOR, |
| adb_basename(src_path).c_str()); |
| dst_path = path_holder.c_str(); |
| } |
| |
| sc.SetExpectedTotalBytes(src_size); |
| if (!sync_recv(sc, src_path, dst_path)) { |
| success = false; |
| continue; |
| } |
| |
| if (copy_attrs && set_time_and_mode(dst_path, src_time, src_mode) != 0) { |
| success = false; |
| continue; |
| } |
| } |
| } |
| |
| return success; |
| } |
| |
| bool do_sync_sync(const std::string& lpath, const std::string& rpath, bool list_only) { |
| SyncConnection sc; |
| if (!sc.IsValid()) return false; |
| |
| return copy_local_dir_remote(sc, lpath, rpath, true, list_only); |
| } |
