From 2dfb3240cb4cda573b12a5c8845d717ba495d134 Mon Sep 17 00:00:00 2001
From: Marcel Schoengens <mschoengens@bitvalve.org>
Date: Mon, 1 May 2023 13:45:22 +0200
Subject: [PATCH] Add new command to manage images / media

---
 zsh/funcs/imgfn2exif.sh | 58 +++++++++++++++++++++++++++++++++++++++++
 zsh/zshrc               |  2 ++
 2 files changed, 60 insertions(+)
 create mode 100644 zsh/funcs/imgfn2exif.sh

diff --git a/zsh/funcs/imgfn2exif.sh b/zsh/funcs/imgfn2exif.sh
new file mode 100644
index 0000000..34ecd20
--- /dev/null
+++ b/zsh/funcs/imgfn2exif.sh
@@ -0,0 +1,58 @@
+function imgfn2exif () (
+    #set -x
+    FLAG_DRYRUN=1
+    FLAG_OVERWRITE=0
+
+    function _print_help() {
+        echo "Use filename to get DateTime from image and add as DateTimeOriginal Exif information"
+    	echo ""
+        echo "Usage: imgfn2exif <options> <file-selection>"
+        echo "    <file-selection> : for example *.JPG"
+        echo "    <options>        : The following options are available:"
+        echo "                     : -d     write exif information"
+        echo "                     : -o     overwrite existing exif information"
+    }
+    
+    function _img_fn_2_exif () {
+        file=$1
+        file_name=$(basename ${file})
+        file_name_prefix=${file_name%.*}
+    
+        if [ $FLAG_DRYRUN -eq 1 ]; then
+            cmd=(echo)
+        else
+            cmd=()
+        fi 
+        cmd+=(exiftool -overwrite_original -DateTimeOriginal=${file_name_prefix} ${file})
+        if [ $FLAG_OVERWRITE -eq 0 ]; then
+            current_exif=$(exiftool -DateTimeOriginal ${file})
+            if [ ! -z $current_exif ]; then
+                echo "Exif DateTimeOriginal already exists for ${file}: ${current_exif#*: }"
+                return
+            fi  
+        fi
+    
+        echo Executing: ${cmd}
+        "${cmd[@]}"
+    }
+
+    while true; do
+        case $1 in
+            -d) 
+                FLAG_DRYRUN=0
+                shift;
+                ;;
+            -o)
+                FLAG_OVERWRITE=1
+                shift;
+                ;;
+            *)
+                break
+                ;;
+        esac
+    done
+
+    for f in $@; do
+        _img_fn_2_exif $f
+    done
+)
diff --git a/zsh/zshrc b/zsh/zshrc
index e04c5d7..85317bb 100644
--- a/zsh/zshrc
+++ b/zsh/zshrc
@@ -126,6 +126,8 @@ source $DOTCONFDIR/dotconf.sh
 
 ### Shell function definition
 
+source $DOTCONFDIR/zsh/funcs/*.sh
+
 function _sortimages () {
     SOURCE="$1"
     TARGET_PREFIX="$2"