Squashed commit of the following:

commit 51f79d4749
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 19:14:15 2025 +0100

    reduce useless downloads

commit 86d335f53e
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 19:13:26 2025 +0100

    fix everywhere

commit 3d23d1b618
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 19:10:54 2025 +0100

    update hashes

commit bbf2d23eb4
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 19:10:30 2025 +0100

    try this instead

commit 5c0cf083d9
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 19:05:42 2025 +0100

    istg if that was the problem

commit ac23c993d0
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 18:44:26 2025 +0100

    Fix other dumb mistake

commit 610893222b
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 18:43:41 2025 +0100

    Fix dumb mistake

commit bb0ee3e64e
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 18:42:33 2025 +0100

    Try fixing sha256 not loading

commit b0f8c1267a
Merge: e079d75 17e3a3b
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 17:46:06 2025 +0100

    Merge branch 'main' of git.colon-three.com:kodi/snowier

commit e079d75fab
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 17:45:55 2025 +0100

    Add debug print

commit 17e3a3b5a8
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 15:51:28 2025 +0100

    Second attempt to fix sha256

commit d575f3c98c
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 15:39:40 2025 +0100

    Fix typo

commit f8ef3b0210
Author: Kodi Craft <kodi@kdcf.me>
Date:   Tue Mar 25 15:38:42 2025 +0100

    Try using different implementation of sha256

install.lua

@@ -2,8 +2,7 @@ local repoRoot = "https://git.colon-three.com/kodi/snowier/raw/branch/main/"
 
 local URLs = {
   fileIndex = repoRoot .. "index.json",
-  -- Implementation of sha256 pulled from here
-  sha2 = "https://raw.githubusercontent.com/Egor-Skriptunoff/pure_lua_SHA/refs/heads/master/sha2.lua"
+  sha256 = repoRoot .. "sha256.lua"
 }
 
 local log = {}
@@ -13,6 +12,11 @@ function log.info(value)
   print("[I] " .. value)
 end
 
+--- @param value string
+function log.debug(value)
+  print("[D] " .. value)
+end
+
 --- @param value string
 function log.error(value)
     printError("[E] " .. value)
@@ -21,19 +25,20 @@ end
 local function main()
   log.info("Starting installer")
 
-  if not fs.exists("sha2.lua") then
-    log.info("Downloading sha2.lua")
-    local sharequest = http.get(URLs.sha2)
-    local shafile = fs.open("sha2.lua", "w")
+  if not fs.exists("sha256.lua") then
+    log.info("Downloading sha256.lua")
+    local sharequest = http.get(URLs.sha256)
+    local shafile = fs.open("sha256.lua", "w")
     shafile.write(sharequest.readAll())
     shafile.close()
     sharequest.close()
   end
-  local hash = require("sha2")
+  package.path = package.path .. ";/?;/?.lua" -- hack to solve 'wget run'
+  local hash = require("sha256")
 
   log.info("Downloading index file")
   local indexrequest = http.get(URLs.fileIndex)
-  local index = textutils.unserializeJson(request.readAll())
+  local index = textutils.unserializeJSON(indexrequest.readAll())
   indexrequest.close()
 
   if (index == nil) then
@@ -51,9 +56,9 @@ local function main()
       toDownload[#toDownload+1] = v
     else
       local destfile = fs.open(v.dest, "r")
-      local filehash = hash.sha256(destfile.readAll())
+      local filehash = hash.sha256(destfile.readAll() .. "\n") -- newline is weird hack because of awkward hashes
       destfile.close()
-      if filehash ~= v.sha256 then
+      if filehash ~= v.hash then
         toDownload[#toDownload+1] = v
       end
     end
@@ -73,7 +78,7 @@ local function main()
     -- Check the validity of the hash, this acts both as a checksum
     -- and a way to raise an error if the index is incorrect
     tempfile = fs.open("/tmp/" .. v.hash .. ".lua", "r")
-    local filehash = hash.sha256(tempfile.readAll())
+    local filehash = hash.sha256(tempfile.readAll() .. "\n") -- newline is weird hack because of awkward hashes
     tempfile.close()
     if filehash ~= v.hash then
       log.error("File " .. v.dest .. " (from " .. v.src .. ") has a mismatched hash.")

updateindex.nu

@@ -4,7 +4,7 @@
 open index.json
 | each {|entry| 
   {src: $entry.src, dest: $entry.dest, 
-  hash: (cat $entry.src | hash sha256)}
+  hash: (open $entry.src | hash sha256)}
 }
 | collect
 | save -f index.json