From 6f17019fb83ea0228018259bd390fd7fb1fd2a43 Mon Sep 17 00:00:00 2001
From: Stephan Wendel <me@stephanwe.de>
Date: Sun, 10 Apr 2022 14:20:03 +0200
Subject: [PATCH] feat: added feature versioncontrol

If log_level is set at least to verbose it will
display versions of used 3rd Party tools like
ustreamer, rtsp-simple-server and ffmpeg

Signed-off-by: Stephan Wendel <me@stephanwe.de>
---
 libs/core.sh           |  3 +-
 libs/logging.sh        |  2 +-
 libs/versioncontrol.sh | 78 ++++++++++++++++++++++++++++++++++++++++++
 webcamd                |  1 +
 4 files changed, 82 insertions(+), 2 deletions(-)
 create mode 100644 libs/versioncontrol.sh

diff --git a/libs/core.sh b/libs/core.sh
index c63fecf..bd7f391 100755
--- a/libs/core.sh
+++ b/libs/core.sh
@@ -114,7 +114,8 @@ function initial_check {
     check_dep "xargs"
     check_dep "ffmpeg"
     check_apps
-    # check_dep "rtsp-simple-server" # Stay for later use.
+    versioncontrol
+    # print cfg if ! log_level: quiet
     if [ -z "$(check_cfg "${WEBCAMD_CFG}")" ]; then
         if [ "$(log_level)" != "quiet" ]; then
             print_cfg
diff --git a/libs/logging.sh b/libs/logging.sh
index 4301155..4b49ed2 100755
--- a/libs/logging.sh
+++ b/libs/logging.sh
@@ -119,7 +119,7 @@ function debug_msg {
     local prefix
     prefix="Develop -- DEBUG:"
     while read -r msg; do
-        log_msg "${prefix}${msg}"
+        log_msg "${prefix} ${msg}"
         echo -e "${msg}" | logger -t webcamd
     done <<< "${1}"
 }
diff --git a/libs/versioncontrol.sh b/libs/versioncontrol.sh
new file mode 100644
index 0000000..251383d
--- /dev/null
+++ b/libs/versioncontrol.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+#### version control library
+
+#### webcamd - A webcam Service for multiple Cams and Stream Services.
+####
+#### Written by Stephan Wendel aka KwadFan <me@stephanwe.de>
+#### Copyright 2021
+#### https://github.com/mainsail-crew/crowsnest
+####
+#### This File is distributed under GPLv3
+####
+#### Description: Checks Versions of Streamer and ffmpeg
+####
+
+# shellcheck enable=require-variable-braces
+
+# Exit upon Errors
+set -Ee
+
+function versioncontrol {
+
+    function vc_log_msg {
+        log_msg "Version Control: ${1}"
+    }
+
+    function get_ustreamer_version {
+        local cur_ver avail_ver
+        pushd "${BASE_CN_PATH}"/bin/ustreamer || exit 1
+            avail_ver="$(git describe --tags --always)"
+            cur_ver="v$("${PWD}"/ustreamer -v)"
+            if [ "${cur_ver}" == "${avail_ver}" ]; then
+                vc_log_msg "ustreamer is up to date. (${cur_ver})"
+            fi
+            if [ "${cur_ver}" != "${avail_ver}" ]; then
+                vc_log_msg "ustreamer new version available: ${avail_ver} (${cur_ver})."
+            fi
+        popd || exit 1
+    }
+
+    function get_rtsp_version {
+        local cur_ver avail_ver
+        pushd "${BASE_CN_PATH}"/bin/rtsp-simple-server || exit 1
+            avail_ver="$(cat version)"
+            cur_ver="$("${PWD}"/rtsp-simple-server --version)"
+            if [ "${cur_ver}" == "${avail_ver}" ]; then
+                vc_log_msg "rtsp-simple-server is up to date. (${cur_ver})"
+            fi
+            if [ "${cur_ver}" != "${avail_ver}" ]; then
+                vc_log_msg "rtsp-simple-server new version available: ${avail_ver} (${cur_ver})."
+            fi
+        popd || exit 1
+    }
+
+    function get_ffmpeg_version {
+        local cur_ver avail_ver
+            avail_ver="$(dpkg-query -W ffmpeg | awk -F':' '{print $2}')"
+            cur_ver="$(ffmpeg -version | awk 'NR==1 {print $3}')"
+            if [ "${cur_ver}" == "${avail_ver}" ]; then
+                vc_log_msg "ffmpeg is up to date. (${cur_ver})"
+            fi
+            if [ "${cur_ver}" != "${avail_ver}" ]; then
+                vc_log_msg "ffmpeg new version available: ${avail_ver} (${cur_ver})."
+            fi
+    }
+
+    ### MAIN
+    function main {
+        if [ "$(log_level)" != "quiet" ]; then
+            get_ustreamer_version
+            get_rtsp_version
+            get_ffmpeg_version
+        fi
+    }
+
+    main
+    return
+}
diff --git a/webcamd b/webcamd
index a75433a..446f262 100755
--- a/webcamd
+++ b/webcamd
@@ -30,6 +30,7 @@ source "${BASE_CN_PATH}/libs/messages.sh"
 source "${BASE_CN_PATH}/libs/rtspsimple.sh"
 source "${BASE_CN_PATH}/libs/ustreamer.sh"
 source "${BASE_CN_PATH}/libs/v4l2_control.sh"
+source "${BASE_CN_PATH}/libs/versioncontrol.sh"
 source "${BASE_CN_PATH}/libs/watchdog.sh"
 
 #### MAIN