From afca94286815fccdfb45e40df24957a0c80e583a Mon Sep 17 00:00:00 2001
From: Reto Kromer <rk@reto.ch>
Date: Sun, 10 Jul 2016 14:32:35 +0200
Subject: [PATCH 1/3] 'check_framemd5.sh' Bash script for review

- It's more or less the situation... on February.
- I changed GREEN to BLUE, in order to make the script suitable for users suffering red-green colour blindness.
---
 check_framemd5.sh | 86 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 check_framemd5.sh

diff --git a/check_framemd5.sh b/check_framemd5.sh
new file mode 100644
index 0000000..28709d0
--- /dev/null
+++ b/check_framemd5.sh
@@ -0,0 +1,86 @@
+#!/bin/bash
+  SCRIPT=$(basename $0)
+ VERSION='2016-07-10'
+  AUTHOR='Kieran O\'Leary, Reto Kromer'
+     RED='\033[1;31m'
+   BLUE='\033[1;34m'
+      NC='\033[0m'
+
+output_prompt() {
+    cat <<END_OF_MSG
+Usage: $SCRIPT [-h | <av_file> <md5_file>]
+END_OF_MSG
+}
+
+output_version() {
+    cat <<END_OF_MSG
+$SCRIPT $VERSION $AUTHOR
+END_OF_MSG
+}
+
+output_help() {
+    cat <<END_OF_MSG
+Syntax:
+  $SCRIPT
+    Prompts a short help message.
+  $SCRIPT -h
+    This help.
+  $SCRIPT <av_file> <md5_file>
+    Pass to the script the audio-visual file and the corresponding MD5
+    file to check.
+Dependency:
+  ffmpeg
+END_OF_MSG
+}
+
+if [ ! $(which diff) ] ; then
+    echo -e "${RED}ERROR:${NC} diff is not installed by default. Please install diffutils from Cygwin."
+    exit 1
+fi
+
+if [ "$#" -eq 0 ]; then
+    output_prompt
+    exit 0
+elif [ "$#" -eq 1 ]; then
+    if [ "$1" == '-h' ]; then
+        output_help
+        exit 0
+    elif [ "$1" == '-v' ]; then
+        output_version    
+        exit 0
+    else
+        echo -e "${RED}ERROR:${NC} '$1' is an invalid argument."
+        output_prompt
+        exit 1
+    fi
+elif [ "$#" -eq 2 ]; then
+    if ! [ -f "$1" ]; then
+        echo -e "${RED}ERROR:${NC} There is no file '$(basename $1)'."
+        output_prompt
+        exit 1
+    elif ! [ -f "$2" ]; then
+        echo -e "${RED}ERROR:${NC} There is no file '$(basename $2)'."
+        output_prompt
+        exit 1
+    else
+        if [[ $OSTYPE == "cygwin" ]]; then
+            md5_tmp=""$USERPROFILE/$(basename $2).tmp""
+        else 
+            md5_tmp="$HOME/$(basename $2).tmp"
+        fi
+        $(ffmpeg -y -i $1 -loglevel 0 -f framemd5 -an $md5_tmp)
+        old_file=$(grep -v '^#' $2)
+        tmp_file=$(grep -v '^#' $md5_tmp)
+        if [ "$old_file" = "$tmp_file" ]; then
+            echo -e "${BLUE}OK${NC} '$(basename $1)' matches '$(basename $2)'."
+        else
+            echo -e "${RED}ERROR:${NC} The following differences were detected between '$(basename $1)' and '$(basename $2)':"
+            diff "$2" "$md5_tmp"
+        fi
+        rm "$md5_tmp"
+    fi
+else
+    echo -e "${RED}ERROR:${NC} Too many arguments."
+    output_prompt
+    exit 1
+fi

From 53cb0e2023cdbc18ca15c2c9ebc2e5285e3e98af Mon Sep 17 00:00:00 2001
From: Reto Kromer <rk@reto.ch>
Date: Sun, 10 Jul 2016 14:35:06 +0200
Subject: [PATCH 2/3] more general path

---
 check_framemd5.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/check_framemd5.sh b/check_framemd5.sh
index 28709d0..b6a2c44 100644
--- a/check_framemd5.sh
+++ b/check_framemd5.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
   SCRIPT=$(basename $0)
  VERSION='2016-07-10'
   AUTHOR='Kieran O\'Leary, Reto Kromer'

From add5079faa20b6a2dab0d11a9bfdbed237d15fff Mon Sep 17 00:00:00 2001
From: Reto Kromer <rk@reto.ch>
Date: Sun, 10 Jul 2016 15:01:00 +0200
Subject: [PATCH 3/3] changed author

---
 check_framemd5.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/check_framemd5.sh b/check_framemd5.sh
index b6a2c44..06f4008 100644
--- a/check_framemd5.sh
+++ b/check_framemd5.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
   SCRIPT=$(basename $0)
  VERSION='2016-07-10'
-  AUTHOR='Kieran O\'Leary, Reto Kromer'
+  AUTHOR='ffmprovisr'
      RED='\033[1;31m'
    BLUE='\033[1;34m'
       NC='\033[0m'