lfs -c impl; tvdos app spec change

assets/disk0/home/appexec.js

@@ -40,9 +40,9 @@ if (targetOS != 1 && targetOS != 0) {
 }
 
 
-function strToInt48(str) {
+function strToInt32(str) {
     let s = [...str].map(it=>it.charCodeAt(0))
-    return ((4294967296 + (s[0] << 40)) + (s[1] << 32) + (s[2] << 24) + (s[3] << 16) + (s[4] << 8) + s[5]) - 4294967296
+    return (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3]
 
 }
 function makeHash(length) {
@@ -63,8 +63,8 @@ let sectionTable = []
 let rodata = {}
 
 for (let i = 0; i < sectionCount; i++) {
-    let sectName = filebytes.substring(16 * (i+1), 16 * (i+1) + 10).trimNull()
+    let sectName = filebytes.substring(16 * (i+1), 16 * (i+1) + 12).trimNull()
-    let sectOffset = strToInt48(filebytes.substring(16 * (i+1) + 10, 16 * (i+1) + 16))
+    let sectOffset = strToInt32(filebytes.substring(16 * (i+1) + 12, 16 * (i+1) + 16))
     sectionTable.push([sectName, sectOffset])
 }
 
@@ -72,17 +72,17 @@ for (let i = 0; i < sectionTable.length - 1; i++) {
     let [sectName, sectOffset] = sectionTable[i]
     let nextSectOffset = sectionTable[i+1][1]
 
-    let uncompLen = strToInt48(filebytes.substring(sectOffset, sectOffset + 6))
+    let uncompLen = strToInt32(filebytes.substring(sectOffset, sectOffset + 4))
-    let compPayload = filebytes.substring(sectOffset + 6, nextSectOffset)
+    let compPayload = filebytes.substring(sectOffset + 4, nextSectOffset)
 
     if ("RODATA" == sectName) {
         let rodataPtr = 0
         while (rodataPtr < nextSectOffset - sectOffset) {
             let labelLen = filebytes.charCodeAt(sectOffset + rodataPtr)
             let label = filebytes.substring(sectOffset + rodataPtr + 1, sectOffset + rodataPtr + 1 + labelLen)
-            let payloadLen = strToInt48(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen, sectOffset + rodataPtr + 1 + labelLen + 6))
+            let payloadLen = strToInt32(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen, sectOffset + rodataPtr + 1 + labelLen + 4))
-            let uncompLen = strToInt48(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 6, sectOffset + rodataPtr + 1 + labelLen + 12))
+            let uncompLen = strToInt32(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 4, sectOffset + rodataPtr + 1 + labelLen + 8))
-            let sectPayload = filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 12, sectOffset + rodataPtr + 1 + labelLen + 12 + payloadLen)
+            let sectPayload = filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 8, sectOffset + rodataPtr + 1 + labelLen + 8 + payloadLen)
 
 
             try {
@@ -96,11 +96,11 @@ for (let i = 0; i < sectionTable.length - 1; i++) {
 
             decompFun(payload)
 
-            rodataPtr += 13 + labelLen + payloadLen
+            rodataPtr += 9 + labelLen + payloadLen
         }
     }
     else if ("TEXT" == sectName) {
-        let program = String.fromCharCode.apply(null, decompFun(compPayload))
+        let program = btostr(decompFun(compPayload))
 
         // inject RODATA map
         let rodataSnippet = `const __RODATA=Object.freeze(${JSON.stringify(rodata)});`

assets/disk0/tvdos/bin/lfs.js

@@ -9,7 +9,7 @@ To list the collected files:
        lfs -t`)
 }
 
-const option = exec_args[1]
+let option = exec_args[1]
 const lfsPath = exec_args[2]
 const dirPath = exec_args[3]
 
@@ -19,3 +19,70 @@ if (option === undefined || lfsPath === undefined || option.toUpperCase() != "-T
     return 0
 }
 
+option = option.toUpperCase()
+
+
+function recurseDir(file, action) {
+    if (!file.isDirectory) {
+        action(file)
+    }
+    else {
+        file.list().forEach(fd => {
+            recurseDir(fd, action)
+        })
+    }
+
+}
+
+const lfsFile = files.open(_G.shell.resolvePathInput(lfsPath).full)
+const rootDir = files.open(_G.shell.resolvePathInput(dirPath).full)
+
+const rootDirPathLen = rootDir.fullPath.length
+
+if ("-C" == option) {
+    if (!rootDir.exists) {
+        printerrln(`No such directory: ${rootDir.fullPath}`)
+        return 1
+    }
+
+    let out = "TVDOSLFS\x01\x00\x00\x00\x00\x00\x00\x00"
+
+    recurseDir(rootDir, file=>{
+        let f = files.open(file.fullPath)
+        let flen = f.size
+        let fname = file.fullPath.substring(rootDirPathLen + 1)
+        let plen = fname.length
+
+        out += "\x01" + String.fromCharCode(
+            (plen >>> 8) & 255,
+             plen & 255
+        )
+
+        out += fname
+
+        out += String.fromCharCode(
+            (flen >>> 24) & 255,
+            (flen >>> 16) & 255,
+            (flen >>> 8) & 255,
+             flen & 255
+        )
+
+        out += f.sread()
+    })
+
+    lfsFile.swrite(out)
+}
+else if ("T" == option || "-X" == option) {
+    if (!lfsFile.exists) {
+        printerrln(`No such file: ${lfsFile.fullPath}`)
+        return 1
+    }
+
+
+    TODO()
+
+}
+else {
+    printerrln("Unknown option: " + option)
+    return 2
+}