ocr script

bin/ocr

@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+
+# Yoinked from https://github.com/JJGO/dotfiles
+# Adapted from https://github.com/sdushantha/bin
+
+set -x
+TEXT_FILE="/tmp/ocr.txt"
+IMAGE_FILE="/tmp/ocr.png"
+
+function notify-send() {
+    osascript -e "display notification \"$2\" with title \"OCR\""
+}
+
+PATH="/usr/local/bin/:$PATH"
+
+# Check if the needed dependencies are installed
+dependencies=(tesseract)
+for dependency in "${dependencies[@]}"; do
+    type -p "$dependency" &>/dev/null || {
+        # The reason why we are sending the error as a notification is because
+        # user is most likely going to run this script by binding it to their
+        # keyboard, therefor they cant see any text that is outputed using echo
+        notify-send "ocr" "Could not find '${dependency}', is it installed?"
+        exit 1
+    }
+done
+
+# Take screenshot by selecting the area
+screencapture -i "$IMAGE_FILE"
+
+# Get the exit code of the previous command.
+# So in this case, it is the screenshot command. If it did not exit with an
+# exit code 0, then it means the user canceled the process of taking a
+# screenshot by doing something like pressing the escape key
+STATUS=$?
+
+# If the user pressed the escape key or did something to terminate the proccess
+# taking a screenshot, then just exit
+[ $STATUS -ne 0 ] && exit 1
+
+# Do the magic (∩^o^)⊃━☆ﾟ.*･｡ﾟ
+# Notice how I have removing the extension .txt from the file path. This is
+# because tesseract adds .txt to the given file path anyways. So if we were to
+# specify /tmp/ocr.txt as the file path, tesseract would out the text to
+# /tmp/ocr.txt.txt
+tesseract "$IMAGE_FILE" "${TEXT_FILE//\.txt/}"
+
+# Check if the text was detected by checking number
+# of lines in the file
+LINES=$(wc -l < $TEXT_FILE)
+if [ "$LINES" -eq 0 ]; then
+    notify-send "ocr" "no text was detected"
+    exit 1
+fi
+
+# Copy text to clipboard
+# xclip -selection clip < "$TEXT_FILE"
+pbcopy < "$TEXT_FILE"
+
+# Send a notification with the text that was grabbed using OCR
+# notify-send "ocr" "$(cat $TEXT_FILE)"
+
+# Clean up
+# "Always leave the area better than you found it"
+#                       - My first grade teacher
+rm "$TEXT_FILE"
+rm "$IMAGE_FILE"