Add option --reinstall

With --install, the server is installed only if the current version is
not already installed. Passing --reinstall force reinstallation is all
cases.

app/scrcpy.1

@@ -246,6 +246,10 @@ option if set, or by the file extension (.mp4 or .mkv).
 .BI "\-\-record\-format " format
 Force recording format (either mp4 or mkv).
 
+.TP
+.B \-\-reinstall
+Reinstall the server (via "adb install"), even if the correct version is already installed. Implies \fB\-\-install\fR.
+
 .TP
 .BI "\-\-render\-driver " name
 Request SDL to use the given render driver (this is just a hint).

app/src/cli.c

@@ -58,6 +58,7 @@
 #define OPT_PRINT_FPS              1038
 #define OPT_NO_POWER_ON            1039
 #define OPT_INSTALL                1040
+#define OPT_REINSTALL              1041
 
 struct sc_option {
     char shortopt;
@@ -385,6 +386,13 @@ static const struct sc_option options[] = {
         .argdesc = "format",
         .text = "Force recording format (either mp4 or mkv).",
     },
+    {
+        .longopt_id = OPT_REINSTALL,
+        .longopt = "reinstall",
+        .text = "Reinstall the server (via 'adb install'), even if the correct "
+                "version is already installed.\n"
+                "Implies --install.",
+    },
     {
         .longopt_id = OPT_RENDER_DRIVER,
         .longopt = "render-driver",
@@ -1620,6 +1628,10 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
             case OPT_INSTALL:
                 opts->install = true;
                 break;
+            case OPT_REINSTALL:
+                opts->install = true;
+                opts->reinstall = true;
+                break;
             case OPT_OTG:
 #ifdef HAVE_USB
                 opts->otg = true;

app/src/options.c

@@ -66,4 +66,5 @@ const struct scrcpy_options scrcpy_options_default = {
     .start_fps_counter = false,
     .power_on = true,
     .install = false,
+    .reinstall = false,
 };

app/src/options.h

@@ -141,6 +141,7 @@ struct scrcpy_options {
     bool start_fps_counter;
     bool power_on;
     bool install;
+    bool reinstall;
 };
 
 extern const struct scrcpy_options scrcpy_options_default;

app/src/scrcpy.c

@@ -326,6 +326,7 @@ scrcpy(struct scrcpy_options *options) {
         .cleanup = options->cleanup,
         .power_on = options->power_on,
         .install = options->install,
+        .reinstall = options->reinstall,
     };
 
     static const struct sc_server_callbacks cbs = {

app/src/server.c

@@ -105,7 +105,10 @@ error:
 }
 
 static bool
-push_server(struct sc_intr *intr, const char *serial, bool install) {
+push_server(struct sc_intr *intr, const char *serial, bool install,
+            bool reinstall) {
+    assert(install || !reinstall); // reinstall implies install
+
     char *server_path = get_server_path();
     if (!server_path) {
         return false;
@@ -121,7 +124,7 @@ push_server(struct sc_intr *intr, const char *serial, bool install) {
         char *version = sc_adb_get_installed_apk_version(intr, serial, 0);
         bool same_version = version && !strcmp(version, SCRCPY_VERSION);
         free(version);
-        if (same_version) {
+        if (!reinstall && same_version) {
             LOGI("Server " SCRCPY_VERSION " already installed");
             ok = true;
         } else {
@@ -818,7 +821,7 @@ run_server(void *data) {
     assert(serial);
     LOGD("Device serial: %s", serial);
 
-    ok = push_server(&server->intr, serial, params->install);
+    ok = push_server(&server->intr, serial, params->install, params->reinstall);
     if (!ok) {
         LOGE("Failed to push server");
         goto error_connection_failed;

app/src/server.h

@@ -49,6 +49,7 @@ struct sc_server_params {
     bool cleanup;
     bool power_on;
     bool install;
+    bool reinstall;
 };
 
 struct sc_server {