From 3f2c2cc1189e8bc68c5098865d7c7a437688bf64 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu, 2 Jan 2020 16:27:23 +0100
Subject: output completion

---
 complete.c | 18 ++++++++++++++----
 drminfo.c  | 31 +++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/complete.c b/complete.c
index 2e9d4a1..87b3332 100644
--- a/complete.c
+++ b/complete.c
@@ -23,11 +23,18 @@
     "        COMPREPLY=( $(compgen -W \"$words\" -- \"$cur\") )\n"   \
     "        ;;\n"
 
+#define CASE_OUTPUT                                                    \
+    "    --output)\n"                                                  \
+    "        words=$(drminfo --complete-output)\n"                     \
+    "        COMPREPLY=( $(compgen -W \"$words\" -- \"$cur\") )\n"     \
+    "        ;;\n"
+
 void complete_bash(const char *command, struct option *opts)
 {
     bool have_image = false;
     bool have_card = false;
     bool have_fbdev = false;
+    bool have_output = false;
     char opt_all[1024];
     char opt_arg[1024];
     int pos_all = 0;
@@ -46,6 +53,8 @@ void complete_bash(const char *command, struct option *opts)
             have_card = true;
         } else if (strcmp(opts[i].name, "fbdev") == 0) {
             have_fbdev = true;
+        } else if (strcmp(opts[i].name, "output") == 0) {
+            have_output = true;
 
         } else if (opts[i].has_arg) {
             /* options without argument completion */
@@ -70,7 +79,7 @@ void complete_bash(const char *command, struct option *opts)
            "    cur=\"${COMP_WORDS[COMP_CWORD]}\"\n"
            "    prev=\"${COMP_WORDS[COMP_CWORD-1]}\"\n"
            "    case \"$prev\" in\n"
-           "%s%s%s"
+           "%s%s%s%s"
            "    %s)\n"
            "        COMPREPLY=()\n"
            "        ;;\n"
@@ -83,9 +92,10 @@ void complete_bash(const char *command, struct option *opts)
            "complete -F _%s_complete %s\n"
            "\n",
            command,
-           have_image ? CASE_IMAGE : "",
-           have_card  ? CASE_CARD  : "",
-           have_fbdev ? CASE_FBDEV : "",
+           have_image  ? CASE_IMAGE  : "",
+           have_card   ? CASE_CARD   : "",
+           have_fbdev  ? CASE_FBDEV  : "",
+           have_output ? CASE_OUTPUT : "",
            opt_arg, opt_all, command, command);
 }
 
diff --git a/drminfo.c b/drminfo.c
index c211ea2..b6bb293 100644
--- a/drminfo.c
+++ b/drminfo.c
@@ -434,6 +434,29 @@ static void list_formats(FILE *fp)
 
 /* ------------------------------------------------------------------ */
 
+static void complete_output(int card)
+{
+    drmModeConnector *conn;
+    drmModeRes *res;
+    char name[64];
+    int fd, i;
+
+    logind_init();
+    fd = drm_open(card);
+
+    res = drmModeGetResources(fd);
+    if (res == NULL)
+        return;
+
+    for (i = 0; i < res->count_connectors; i++) {
+        conn = drmModeGetConnector(fd, res->connectors[i]);
+        if (!conn)
+            continue;
+        drm_conn_name(conn, name, sizeof(name));
+        printf("%s\n", name);
+    }
+}
+
 static void usage(FILE *fp)
 {
     fprintf(fp,
@@ -463,6 +486,7 @@ enum {
     OPT_LONG_LEASE = 0x100,
     OPT_LONG_COMP_BASH,
     OPT_LONG_COMP_CARD,
+    OPT_LONG_COMP_OUTPUT,
 };
 
 static struct option long_opts[] = {
@@ -516,6 +540,10 @@ static struct option long_opts[] = {
         .has_arg = false,
         .val     = OPT_LONG_COMP_CARD,
     },{
+        .name    = "complete-output",
+        .has_arg = false,
+        .val     = OPT_LONG_COMP_OUTPUT,
+    },{
 
         /* --- with argument --- */
         .name    = "card",
@@ -599,6 +627,9 @@ int main(int argc, char **argv)
         case OPT_LONG_COMP_CARD:
             complete_device_nr("/dev/dri/card");
             exit(0);
+        case OPT_LONG_COMP_OUTPUT:
+            complete_output(card);
+            exit(0);
         case 'h':
             usage(stdout);
             exit(0);
-- 
cgit