upgrade-fw: use tar balls from github releases

fs-add/sbin/upgrade-fw

@@ -1,11 +1,12 @@
 #!/bin/sh
 
 FILE="$1"
+DOWNLOAD=""
 MTDDEV="/dev/mtd3"
 SAFEFILE="/root/new.fw"
 CHECKSTR="Linux-2.6.32.42_stm24_0208-idl4k"
-GITHUB1="https://github.com/perexg/satip-axe/tree/master/dist"
-GITHUB2="https://github.com/perexg/satip-axe/blob/master/dist/$FILE?raw=true"
+
+GITHUB1="https://api.github.com/repos/perexg/satip-axe/releases"
 
 if test "$PWD" != "/root" -a "$PWD" != "/"; then
   echo "Run this utility from / or /root directory"
@@ -17,23 +18,65 @@ if test "$FILE" = "-h" -o "$FILE" = "--help"; then
   exit 1
 fi
 
-if test -z "$FILE"; then
-  echo "Trying to fetch the list of available firmware files:"
-  if ! wget -q -O /root/list.txt "$GITHUB1"; then
+if ! test -r "$FILE"; then
+  if test -z "$FILE"; then
+    echo "Trying to fetch the list of available firmware files:"
+  else
+    echo "Trying to fetch the URL for the firmware:"
+  fi
+  if ! wget -q -O /root/list.json "$GITHUB1"; then
     echo "FAILED"
     exit 1
   fi
-  grep -o -E ">satip-axe-.*.fw<" /root/list.txt | grep -o -E "satip-axe.*.fw"
-  rm /root/list.txt
-  exit 0
+  cat /root/list.json | grep -E '("name"|"browser_download_url")' | \
+                        grep -v -E '"name":.*.tgz' | \
+                        while IFS="\n" read line
+  do
+    case "$line" in
+      \ *\"name\":*)
+        name=$(echo "$line" | cut -d '"' -f 4)
+        ;;
+      \ *\"browser_download_url\":*)
+        fw=$(echo "$line" | cut -d '/' -f 9 | cut -d '"' -f 1 | cut -d '.' -f 1)
+        fw="$fw.fw"
+        if test -z "$FILE"; then
+          printf "%-40s : %s\n" "$name" "$fw"
+        else
+          if test "$FILE" = "$fw"; then
+            f=$(echo "$line" | cut -d '"' -f 4)
+            echo "$f" > /root/url.txt
+            printf "  %s\n" "$f"
+          fi
+        fi
+        name=''
+        ;;
+    esac
+  done
+  rm /root/list.json
+  if test -z "$FILE"; then
+    exit 0
+  fi
+  if test -r /root/url.txt; then
+    DOWNLOAD=$(cat /root/url.txt)
+  fi
 fi
 
-if ! test -r "$FILE"; then
-  echo "Downloading $FILE:"
-  if ! wget -O "$SAFEFILE" "$GITHUB2/$FILE"; then
-    echo "Unable to fetch firmware file $GITHUB2"
+if test -n "$DOWNLOAD"; then
+  echo "Downloading $FILE from $DOWNLOAD to $SAFEFILE:"
+  if ! wget -O - "$DOWNLOAD" | tar xOzf - "$FILE" > "$SAFEFILE"; then
+    echo "Unable to fetch firmware file $DOWNLOAD / $FILE"
     exit 1
   fi
+  if ! test -r "$SAFEFILE"; then
+    echo "Unable to fetch firmware file $DOWNLOAD / $FILE"
+    exit 1
+  fi
+  FILESIZE=$(stat -c "%s" "$SAFEFILE")
+  if test -z "$FILESIZE" -o $FILESIZE -le 0; then
+    echo "Download failed (wrong file size)!"
+  else
+    echo "Downloaded firmware $FILE (file $SAFEFILE size $FILESIZE bytes)..."
+  fi
   FILE="$SAFEFILE"
 fi
 
@@ -69,7 +112,7 @@ while test 1 -eq 1; do
   nanddump -f "$SAFEFILE.old" -l "$FILESIZE" "$MTDDEV"
   FILESIZE2=$(stat -c "%s" "$SAFEFILE.old")
   if test "$FILESIZE" -gt "$FILESIZE2"; then
-    echo "Unable to verify (file sizes does not match - $FILESIZE > $FILESIZE2"
+    echo "Unable to verify (file sizes does not match - $FILESIZE > $FILESIZE2)"
     exit 1
   fi
   if ! dd if=/dev/null seek="$FILESIZE" bs=1 of="$SAFEFILE.old" 2> /dev/null; then
@@ -78,7 +121,7 @@ while test 1 -eq 1; do
   fi
   FILESIZE2=$(stat -c "%s" "$SAFEFILE.old")
   if test "$FILESIZE" != "$FILESIZE2"; then
-    echo "Unable to verify (file sizes does not match - $FILESIZE != $FILESIZE2"
+    echo "Unable to verify (file sizes does not match - $FILESIZE != $FILESIZE2)"
     exit 1
   fi
   result=$(diff "$SAFEFILE.old" "$SAFEFILE")