paritybit.ca

commit 94f767fd029938062065a3557f55c19c60bac336
parent 2c647f7f47a8bbfa2ea9f852c58667454304a456
Author: Jake Bauer <jbauer@paritybit.ca>
Date:   Thu,  6 Aug 2020 19:02:55 -0400

Add image resizing using 'convert' program

Diffstat:
M
compile
 | 
38
+++++++++++++++++++++++++++++++++-----

1 file changed, 33 insertions(+), 5 deletions(-)
diff --git a/compile b/compile
@@ -37,6 +37,10 @@ if [ ! -x "$(command -v pandoc)" ]; then
     echo "The program 'pandoc' is needed but was not found."
     exit 1
 fi
+if [ ! -x "$(command -v convert)" ]; then
+    echo "The program 'convert' from ImageMagick is needed but was not found."
+    exit 1
+fi
 
 # Define colours
 CLEAR="\033[0m"
@@ -111,7 +115,7 @@ auto_upload()
     fi
 }
 
-compile_img()
+optimize_img()
 {
     print_header_msg "OPTIMIZING IMG: $file"
     outputFile="$imgDir/$fileName.$fileExt"
@@ -133,7 +137,18 @@ compile_img()
     fi
 }
 
-compile_css()
+resize_img()
+{
+    print_header_msg "RESIZING IMG: $file"
+    outputFile="$imgDir/$fileName.$fileExt"
+    convert "$file" -resize "$resizeFactor"% "$outputFile"
+    if [ $? != 0 ]; then
+        print_error_msg "There was an error resizing the image."
+        exit 1
+    fi
+}
+
+minify_css()
 {
     print_header_msg "MINIFYING CSS: $file"
     outputFile="$cssDir/$fileName.min.css"
@@ -271,6 +286,7 @@ while test $# -gt 0; do
             echo "-s|--strict          use strict markdown compilation"
             echo "-a|--auto-upload     auto-upload generated files"
             echo "-n|--no-auto-upload  do not auto-upload the generated files"
+            echo "-r|--resize NUMBER   resize input image by NUMBER percent"
             exit 0
             ;;
         -l|--loose)
@@ -289,6 +305,11 @@ while test $# -gt 0; do
             autoUpload="true"
             shift
             ;;
+        -r|--resize)
+            shift
+            resizeFactor="$1"
+            shift
+            ;;
         --|*)
             break
             ;;
@@ -312,14 +333,21 @@ for file in "$@"; do
     subDir=$(echo "$fileDir" | sed "s/^pages//")
 
     if [ "$fileExt" = "css" ]; then
-        compile_css
+        minify_css
         auto_upload
     elif [ "$fileExt" = "md" ]; then
         compile_md
         auto_upload
     elif [ "$fileExt" = "png" ] || [ "$fileExt" = "jpg" ] || [ "$fileExt" = "jpeg" ]; then
-        compile_img
-        auto_upload
+        if [ -n "$resizeFactor" ]; then
+            fileName="$fileName-thumb"
+            resize_img
+        else
+            optimize_img
+            auto_upload
+        fi
+    else
+        print_error_msg "ERROR: nothing to do."
     fi
 
     print_success_msg "FINISHED: https://$siteName/$subDir/$fileName.$fileExt"