From 2b5d9a3416b4ee27d482bcd06f4102b6f89601ce Mon Sep 17 00:00:00 2001
From: Derek Stevens <nilix@nilfm.cc>
Date: Tue, 18 May 2021 13:10:28 -0600
Subject: [PATCH] mangle html for thumbnails in euereka instead of the
 shellscript -- wayyy faster

---
 build.sh       |  2 +-
 main.c         | 30 ++++++++++++++++++++++++++++--
 thumbnailer.sh | 35 +++++++++++++----------------------
 3 files changed, 42 insertions(+), 25 deletions(-)

diff --git a/build.sh b/build.sh
index f2de11b..aee4218 100755
--- a/build.sh
+++ b/build.sh
@@ -27,7 +27,7 @@ cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wuninitializ
 
 # Run
 ./main
-./thumbnailer.sh
+./thumbnailer.sh build
 
 
 # Cleanup
diff --git a/main.c b/main.c
index 808492d..0fe1108 100644
--- a/main.c
+++ b/main.c
@@ -130,10 +130,32 @@ int fphref(FILE* f, char* s) {
   return 1;
 }
 
+char* thumbtrans(char* s, char* thumb) {
+  int i, j;
+  char* ss;
+  char* fnss;
+  char fn[1024];
+
+  scpy(s, thumb, slen(s));
+
+  i = clin(thumb, '/');
+  ss = thumb + i + 1;
+
+  scpy(ss, fn, slen(thumb) - i + 1);
+  scpy(".thumb/", ss, 8);
+
+  j = clin(fn, '.');
+  fnss = fn + j;
+  scpy(".png", fnss, 5);
+  scat(thumb, fn);
+  return thumb;
+}
+
 int fpimg(FILE* f, char* s) {
   char id[1024] = {0};
   char src[1024] = {0};
   char alt[1024] = {0};
+  char thumb[1024] = {0};
 
   char* c = s;
   int i = 0;
@@ -156,8 +178,9 @@ int fpimg(FILE* f, char* s) {
     }
   }
 
+  thumbtrans(src, thumb);
   fprintf(f, "<a id='%s' href='%s'>\n", id, src);
-  fprintf(f, "<img class='image' src='%s' alt='%s'/>\n", src, alt);
+  fprintf(f, "<img class='image' src='%s' alt='%s'/>\n", thumb, alt);
   fputs("</a>", f);
   return 1;
 }
@@ -167,6 +190,7 @@ int fphimg(FILE* f, char* s) {
   char href[1024] = {0};
   char src[1024] = {0};
   char alt[1024] = {0};
+  char thumb[1024] = {0};
 
   char* c = s;
   int i = 0;
@@ -192,8 +216,10 @@ int fphimg(FILE* f, char* s) {
     }
   }
 
+  thumbtrans(src, thumb);
+
   fprintf(f, "<a id='%s' href='%s'>\n", id, href);
-  fprintf(f, "<img class='image' src='%s' alt='%s'/>\n", src, alt);
+  fprintf(f, "<img class='image' src='%s' alt='%s'/>\n", thumb, alt);
   fputs("</a>", f);
   return 1;
 }
diff --git a/thumbnailer.sh b/thumbnailer.sh
index fcb93c7..2b42774 100755
--- a/thumbnailer.sh
+++ b/thumbnailer.sh
@@ -17,7 +17,6 @@ pathtrans() {
 }
 
 # generate thumbnails in /img/*/.thumb/
-
 resize() {
   output=$(pathtrans $1)
   if echo $1 | grep .gif > /dev/null; then
@@ -27,28 +26,20 @@ resize() {
     echo "generating thumbnail for $1"
     convert $1 -strip -auto-orient -resize ${SIZE} -dither FloydSteinberg -colors 16 ${output}
   fi
-  replace $1 ${output}
 }
 
-# crawl through html and replace src='/img/*/*' with src='/img/*/.thumb/*'
 
-replace() {
-  src=$(echo $1 | sed s#\.\./www##)
-  dest=$(echo $2 | sed s#\.\./www##)
 
-  src=$(echo "src='${src}'")
-  dest=$(echo "src='${dest}'")
-
-  echo -n "modifying html to use thumbnail for $1"
-  for f in $(find ${ROOT}/*.html); do
-    echo -n "."
-    if grep ${src} ${f} > /dev/null; then
-      sed -i s#${src}#${dest}# $f
-    fi
-  done
-  echo
-}
-
-echo "creating new thumbnails"
-for x in $(find ${SRC}/*/*); do resize $x exit; done
-echo "done"
+if [ -z $1 ]; then
+  echo "usage: $0 [build|clean]"
+else
+  case $1 in
+    "build")
+      echo "creating new thumbnails"
+      for x in $(find ${SRC}/*/*); do resize $x; done;;
+    "clean")
+      echo "cleaning thumbnails cache"
+      rm -rf ${SRC}/*/.thumb
+      echo "cleaned";;
+  esac
+fi