file-disk - npm Package Compare versions

Comparing version 6.0.2 to 6.0.3-check-chunks-in-disk-f95c55e5552840e1962a66ad5945387360ff06c0

build/index.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.BufferDisk = exports.FileDisk = exports.Disk = exports.openFile = exports.DiskStream = exports.DiskChunk = exports.DiscardDiskChunk = exports.BufferDiskChunk = void 0;
-const tslib_1 = require("tslib");
 const Bluebird = require("bluebird");
@@ -24,31 +23,29 @@ const stream_1 = require("stream");
     }
-    __read(size) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            if (this.isReading) {
-                // We're already reading, return.
+    async __read(size) {
+        if (this.isReading) {
+            // We're already reading, return.
+            return;
+        }
+        this.isReading = true;
+        while (this.isReading) {
+            // Don't read out of bounds
+            const length = Math.min(size, this.capacity - this.position);
+            if (length <= 0) {
+                // Nothing left to read: push null to signal end of stream.
+                this.isReading = this.push(null);
                 return;
             }
-            this.isReading = true;
-            while (this.isReading) {
-                // Don't read out of bounds
-                const length = Math.min(size, this.capacity - this.position);
-                if (length <= 0) {
-                    // Nothing left to read: push null to signal end of stream.
-                    this.isReading = this.push(null);
-                    return;
-                }
-                let bytesRead;
-                let buffer;
-                try {
-                    ({ bytesRead, buffer } = yield this.disk.read(Buffer.allocUnsafe(length), 0, length, this.position));
-                }
-                catch (err) {
-                    this.emit('error', err);
-                    return;
-                }
-                this.position += bytesRead;
-                // this.push() returns true if we need to continue reading.
-                this.isReading = this.push(buffer);
+            let bytesRead;
+            let buffer;
+            try {
+                ({ bytesRead, buffer } = await this.disk.read(Buffer.allocUnsafe(length), 0, length, this.position));
             }
-        });
+            catch (err) {
+                this.emit('error', err);
+                return;
+            }
+            this.position += bytesRead;
+            // this.push() returns true if we need to continue reading.
+            this.isReading = this.push(buffer);
+        }
     }
@@ -143,60 +140,48 @@ _read(size) {
     }
-    read(buffer, _bufferOffset, length, fileOffset) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            const plan = this.createReadPlan(fileOffset, length);
-            return yield this.readAccordingToPlan(buffer, plan);
-        });
+    async read(buffer, _bufferOffset, length, fileOffset) {
+        const plan = this.createReadPlan(fileOffset, length);
+        return await this.readAccordingToPlan(buffer, plan);
     }
-    write(buffer, bufferOffset, length, fileOffset) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            if (this.recordWrites) {
-                const chunk = new diskchunk_1.BufferDiskChunk(buffer.slice(bufferOffset, bufferOffset + length), fileOffset);
-                this.insertDiskChunk(chunk);
-            }
-            else {
-                // Special case: we do not record writes but we may have recorded
-                // some discards. We want to remove any discard overlapping this
-                // write.
-                // In order to do this we do as if we were inserting a chunk: this
-                // will slice existing discards in this area if there are any.
-                const chunk = new diskchunk_1.DiscardDiskChunk(fileOffset, length);
-                // The `false` below means "don't insert the chunk into knownChunks"
-                this.insertDiskChunk(chunk, false);
-            }
-            if (this.readOnly) {
-                return { bytesWritten: length, buffer };
-            }
-            else {
-                return yield this._write(buffer, bufferOffset, length, fileOffset);
-            }
-        });
+    async write(buffer, bufferOffset, length, fileOffset) {
+        if (this.recordWrites) {
+            const chunk = new diskchunk_1.BufferDiskChunk(buffer.slice(bufferOffset, bufferOffset + length), fileOffset);
+            await this.insertDiskChunk(chunk);
+        }
+        else {
+            // Special case: we do not record writes but we may have recorded
+            // some discards. We want to remove any discard overlapping this
+            // write.
+            // In order to do this we do as if we were inserting a chunk: this
+            // will slice existing discards in this area if there are any.
+            const chunk = new diskchunk_1.DiscardDiskChunk(fileOffset, length);
+            // The `false` below means "don't insert the chunk into knownChunks"
+            await this.insertDiskChunk(chunk, false);
+        }
+        if (this.readOnly) {
+            return { bytesWritten: length, buffer };
+        }
+        else {
+            return await this._write(buffer, bufferOffset, length, fileOffset);
+        }
     }
-    flush() {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            if (!this.readOnly) {
-                return yield this._flush();
-            }
-        });
+    async flush() {
+        if (!this.readOnly) {
+            return await this._flush();
+        }
     }
-    discard(offset, length) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            this.insertDiskChunk(new diskchunk_1.DiscardDiskChunk(offset, length));
-        });
+    async discard(offset, length) {
+        await this.insertDiskChunk(new diskchunk_1.DiscardDiskChunk(offset, length));
     }
-    getCapacity() {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            if (this.capacity === null) {
-                this.capacity = yield this._getCapacity();
-            }
-            return this.capacity;
-        });
+    async getCapacity() {
+        if (this.capacity === null) {
+            this.capacity = await this._getCapacity();
+        }
+        return this.capacity;
     }
-    getStream(position = 0, length = null, highWaterMark = DEFAULT_HIGH_WATER_MARK) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            let end = yield this.getCapacity();
-            if (length !== null) {
-                end = Math.min(position + length, end);
-            }
-            return new DiskStream(this, end, highWaterMark, position);
-        });
+    async getStream(position = 0, length = null, highWaterMark = DEFAULT_HIGH_WATER_MARK) {
+        let end = await this.getCapacity();
+        if (length !== null) {
+            end = Math.min(position + length, end);
+        }
+        return new DiskStream(this, end, highWaterMark, position);
     }
@@ -208,8 +193,11 @@ getDiscardedChunks() {
     }
-    getRanges(blockSize) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            return Array.from(yield mapped_ranges_1.getRanges(this, blockSize));
-        });
+    async getRanges(blockSize) {
+        return Array.from(await mapped_ranges_1.getRanges(this, blockSize));
     }
-    insertDiskChunk(chunk, insert = true) {
+    async insertDiskChunk(chunk, insert = true) {
+        const capacity = await this.getCapacity();
+        if (chunk.start < 0 || chunk.end > capacity) {
+            // Invalid chunk
+            return;
+        }
         let insertAt = 0;
@@ -277,24 +265,22 @@ for (let i = 0; i < this.knownChunks.length; i++) {
     }
-    readAccordingToPlan(buffer, plan) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            let offset = 0;
-            yield Bluebird.each(plan, (entry) => tslib_1.__awaiter(this, void 0, void 0, function* () {
-                if (entry instanceof diskchunk_1.DiskChunk) {
-                    const data = entry.data();
-                    const length = Math.min(data.length, buffer.length - offset);
-                    data.copy(buffer, offset, 0, length);
-                    offset += length;
+    async readAccordingToPlan(buffer, plan) {
+        let offset = 0;
+        await Bluebird.each(plan, async (entry) => {
+            if (entry instanceof diskchunk_1.DiskChunk) {
+                const data = entry.data();
+                const length = Math.min(data.length, buffer.length - offset);
+                data.copy(buffer, offset, 0, length);
+                offset += length;
+            }
+            else {
+                const length = entry[1] - entry[0] + 1;
+                await this._read(buffer, offset, length, entry[0]);
+                if (this.recordReads) {
+                    const chunk = new diskchunk_1.BufferDiskChunk(Buffer.from(buffer.slice(offset, offset + length)), entry[0]);
+                    await this.insertDiskChunk(chunk);
                 }
-                else {
-                    const length = entry[1] - entry[0] + 1;
-                    yield this._read(buffer, offset, length, entry[0]);
-                    if (this.recordReads) {
-                        const chunk = new diskchunk_1.BufferDiskChunk(Buffer.from(buffer.slice(offset, offset + length)), entry[0]);
-                        this.insertDiskChunk(chunk);
-                    }
-                    offset += length;
-                }
-            }));
-            return { bytesRead: offset, buffer };
+                offset += length;
+            }
         });
+        return { bytesRead: offset, buffer };
     }
@@ -308,22 +294,14 @@ }
     }
-    _getCapacity() {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            const stats = yield fs.fstat(this.fd);
-            return stats.size;
-        });
+    async _getCapacity() {
+        const stats = await fs.fstat(this.fd);
+        return stats.size;
     }
-    _read(buffer, bufferOffset, length, fileOffset) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            return yield fs.read(this.fd, buffer, bufferOffset, length, fileOffset);
-        });
+    async _read(buffer, bufferOffset, length, fileOffset) {
+        return await fs.read(this.fd, buffer, bufferOffset, length, fileOffset);
     }
-    _write(buffer, bufferOffset, length, fileOffset) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            return yield fs.write(this.fd, buffer, bufferOffset, length, fileOffset);
-        });
+    async _write(buffer, bufferOffset, length, fileOffset) {
+        return await fs.write(this.fd, buffer, bufferOffset, length, fileOffset);
     }
-    _flush() {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            yield fs.fdatasync(this.fd);
-        });
+    async _flush() {
+        await fs.fdatasync(this.fd);
     }
@@ -337,23 +315,15 @@ }
     }
-    _getCapacity() {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            return this.buffer.length;
-        });
+    async _getCapacity() {
+        return this.buffer.length;
     }
-    _read(buffer, bufferOffset, length, fileOffset) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            const bytesRead = this.buffer.copy(buffer, bufferOffset, fileOffset, fileOffset + length);
-            return { buffer, bytesRead };
-        });
+    async _read(buffer, bufferOffset, length, fileOffset) {
+        const bytesRead = this.buffer.copy(buffer, bufferOffset, fileOffset, fileOffset + length);
+        return { buffer, bytesRead };
     }
-    _write(buffer, bufferOffset, length, fileOffset) {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            const bytesWritten = buffer.copy(this.buffer, fileOffset, bufferOffset, bufferOffset + length);
-            return { buffer, bytesWritten };
-        });
+    async _write(buffer, bufferOffset, length, fileOffset) {
+        const bytesWritten = buffer.copy(this.buffer, fileOffset, bufferOffset, bufferOffset + length);
+        return { buffer, bytesWritten };
     }
-    _flush() {
-        return tslib_1.__awaiter(this, void 0, void 0, function* () {
-            // Nothing to do to flush a BufferDisk
-        });
+    async _flush() {
+        // Nothing to do to flush a BufferDisk
     }
@@ -360,0 +330,0 @@ }

build/mapped-ranges.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.getRanges = void 0;
-const tslib_1 = require("tslib");
 function* mapIterable(source, transform) {
@@ -10,6 +9,4 @@ for (const value of source) {
 }
-function getNotDiscardedIntervals(disk) {
-    return tslib_1.__awaiter(this, void 0, void 0, function* () {
-        return notDiscardedIntervalsIterator(disk.getDiscardedChunks(), yield disk.getCapacity());
-    });
+async function getNotDiscardedIntervals(disk) {
+    return notDiscardedIntervalsIterator(disk.getDiscardedChunks(), await disk.getCapacity());
 }
@@ -47,15 +44,13 @@ function* notDiscardedIntervalsIterator(discardedChunks, capacity) {
 }
-function getRanges(disk, blockSize) {
-    return tslib_1.__awaiter(this, void 0, void 0, function* () {
-        const intervals = yield getNotDiscardedIntervals(disk);
-        const blockSizedIntervals = mapIterable(intervals, (chunk) => [
-            Math.floor(chunk[0] / blockSize),
-            Math.floor(chunk[1] / blockSize),
-        ]);
-        const mergedBlockSizedIntervals = mergeIntervals(blockSizedIntervals);
-        return mapIterable(mergedBlockSizedIntervals, (interval) => {
-            const offset = interval[0] * blockSize;
-            const length = (interval[1] - interval[0] + 1) * blockSize;
-            return { offset, length };
-        });
+async function getRanges(disk, blockSize) {
+    const intervals = await getNotDiscardedIntervals(disk);
+    const blockSizedIntervals = mapIterable(intervals, (chunk) => [
+        Math.floor(chunk[0] / blockSize),
+        Math.floor(chunk[1] / blockSize),
+    ]);
+    const mergedBlockSizedIntervals = mergeIntervals(blockSizedIntervals);
+    return mapIterable(mergedBlockSizedIntervals, (interval) => {
+        const offset = interval[0] * blockSize;
+        const length = (interval[1] - interval[0] + 1) * blockSize;
+        return { offset, length };
     });
@@ -62,0 +57,0 @@ }

CHANGELOG.md

@@ -7,2 +7,8 @@ # Change Log
 
+# v6.0.3
+## (2020-07-24)
+
+* Set typescript target to es2018 [Alexis Svinartchouk]
+* Check that chunks are in the disk [Alexis Svinartchouk]
+
 # v6.0.2
@@ -9,0 +15,0 @@ ## (2020-07-14)

package.json

 {
   "name": "file-disk",
-  "version": "6.0.2",
+  "version": "6.0.3-check-chunks-in-disk-f95c55e5552840e1962a66ad5945387360ff06c0",
   "description": "Handles reads / writes on disk image files.",
@@ -5,0 +5,0 @@ "author": "Petros Angelatos <[e-mail]>",

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Found 1 instance in 1 package

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Quality

Package is not semver >=1. This means it is not stable and does not support ^ ranges.

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Total package byte prevSize

61344

decreased by-2.16%

Lines of code

638

decreased by-5.2%

Number of low quality alerts

1

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