Split bugreport() into its own file and added unit tests.

bugreport() will be soon refactored to track progress, which will
require more comprehensive unit tests.

As such, it's better to move it to its own files, which in turn also
requires moving send_shell_command() and usage() to commandline.h.

Fixes: 30100363
Bug: 30268737

Change-Id: I3cdf114a0b5547293320042ff0749a60886440b0
(cherry picked from commit 78e0963e4bce9cc9f0bbf0b686004ba15b1e3929)
diff --git a/adb/commandline.cpp b/adb/commandline.cpp
index 750bf6c..979c107 100644
--- a/adb/commandline.cpp
+++ b/adb/commandline.cpp
@@ -52,10 +52,11 @@
 #include "adb_client.h"
 #include "adb_io.h"
 #include "adb_utils.h"
+#include "bugreport.h"
+#include "commandline.h"
 #include "file_sync_service.h"
 #include "services.h"
 #include "shell_service.h"
-#include "transport.h"
 
 static int install_app(TransportType t, const char* serial, int argc, const char** argv);
 static int install_multiple_app(TransportType t, const char* serial, int argc, const char** argv);
@@ -66,9 +67,6 @@
 static auto& gProductOutPath = *new std::string();
 extern int gListenAll;
 
-static constexpr char BUGZ_OK_PREFIX[] = "OK:";
-static constexpr char BUGZ_FAIL_PREFIX[] = "FAIL:";
-
 static std::string product_file(const char *extra) {
     if (gProductOutPath.empty()) {
         fprintf(stderr, "adb: Product directory not specified; "
@@ -254,7 +252,7 @@
         );
 }
 
-static int usage() {
+int usage() {
     help();
     return 1;
 }
@@ -1113,13 +1111,8 @@
     return true;
 }
 
-// Connects to the device "shell" service with |command| and prints the
-// resulting output.
-static int send_shell_command(TransportType transport_type, const char* serial,
-                              const std::string& command,
-                              bool disable_shell_protocol,
-                              std::string* output=nullptr,
-                              std::string* err=nullptr) {
+int send_shell_command(TransportType transport_type, const char* serial, const std::string& command,
+                       bool disable_shell_protocol, std::string* output, std::string* err) {
     int fd;
     bool use_shell_protocol = false;
 
@@ -1163,45 +1156,6 @@
     return exit_code;
 }
 
-static int bugreport(TransportType transport_type, const char* serial, int argc,
-                     const char** argv) {
-    if (argc == 1) return send_shell_command(transport_type, serial, "bugreport", false);
-    if (argc != 2) return usage();
-
-    // Zipped bugreport option - will call 'bugreportz', which prints the location of the generated
-    // file, then pull it to the destination file provided by the user.
-    std::string dest_file = argv[1];
-    if (!android::base::EndsWith(argv[1], ".zip")) {
-        // TODO: use a case-insensitive comparison (like EndsWithIgnoreCase
-        dest_file += ".zip";
-    }
-    std::string output;
-
-    fprintf(stderr, "Bugreport is in progress and it could take minutes to complete.\n"
-            "Please be patient and do not cancel or disconnect your device until it completes.\n");
-    int status = send_shell_command(transport_type, serial, "bugreportz", false, &output, nullptr);
-    if (status != 0 || output.empty()) return status;
-    output = android::base::Trim(output);
-
-    if (android::base::StartsWith(output, BUGZ_OK_PREFIX)) {
-        const char* zip_file = &output[strlen(BUGZ_OK_PREFIX)];
-        std::vector<const char*> srcs{zip_file};
-        status = do_sync_pull(srcs, dest_file.c_str(), true, dest_file.c_str()) ? 0 : 1;
-        if (status != 0) {
-            fprintf(stderr, "Could not copy file '%s' to '%s'\n", zip_file, dest_file.c_str());
-        }
-        return status;
-    }
-    if (android::base::StartsWith(output, BUGZ_FAIL_PREFIX)) {
-        const char* error_message = &output[strlen(BUGZ_FAIL_PREFIX)];
-        fprintf(stderr, "Device failed to take a zipped bugreport: %s\n", error_message);
-        return -1;
-    }
-    fprintf(stderr, "Unexpected string (%s) returned by bugreportz, "
-            "device probably does not support -z option\n", output.c_str());
-    return -1;
-}
-
 static int logcat(TransportType transport, const char* serial, int argc, const char** argv) {
     char* log_tags = getenv("ANDROID_LOG_TAGS");
     std::string quoted = escape_arg(log_tags == nullptr ? "" : log_tags);
@@ -1747,7 +1701,8 @@
     } else if (!strcmp(argv[0], "root") || !strcmp(argv[0], "unroot")) {
         return adb_root(argv[0]) ? 0 : 1;
     } else if (!strcmp(argv[0], "bugreport")) {
-        return bugreport(transport_type, serial, argc, argv);
+        Bugreport bugreport;
+        return bugreport.DoIt(transport_type, serial, argc, argv);
     } else if (!strcmp(argv[0], "forward") || !strcmp(argv[0], "reverse")) {
         bool reverse = !strcmp(argv[0], "reverse");
         ++argv;