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apps/meteor/app/file-upload/server/config/GridFS.ts

Summary

Maintainability
C
1 day
Test Coverage

Function readFromGridFS has 43 lines of code (exceeds 25 allowed). Consider refactoring.
Open

const readFromGridFS = async function (
    storeName: string | undefined,
    fileId: string,
    file: IUpload,
    req: http.IncomingMessage,
Severity: Minor
Found in apps/meteor/app/file-upload/server/config/GridFS.ts - About 1 hr to fix

    Function _transform has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
    Open

        _transform(chunk: any, _enc: BufferEncoding, cb: TransformCallback) {
        if (this.bytes_read > this.stop) {
            // done reading
            this.end();
        } else if (this.bytes_read + chunk.length < this.start) {
    Severity: Minor
    Found in apps/meteor/app/file-upload/server/config/GridFS.ts - About 55 mins to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Function readFromGridFS has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
    Open

    const readFromGridFS = async function (
    storeName: string | undefined,
    fileId: string,
    file: IUpload,
    req: http.IncomingMessage,
    Severity: Minor
    Found in apps/meteor/app/file-upload/server/config/GridFS.ts - About 45 mins to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Function readFromGridFS has 5 arguments (exceeds 4 allowed). Consider refactoring.
    Open

        storeName: string | undefined,
    fileId: string,
    file: IUpload,
    req: http.IncomingMessage,
    res: http.ServerResponse,
    Severity: Minor
    Found in apps/meteor/app/file-upload/server/config/GridFS.ts - About 35 mins to fix

      Avoid too many return statements within this function.
      Open

              return;
      Severity: Major
      Found in apps/meteor/app/file-upload/server/config/GridFS.ts - About 30 mins to fix

        Similar blocks of code found in 2 locations. Consider refactoring.
        Open

            if (accept.match(/\bdeflate\b/)) {
        res.setHeader('Content-Encoding', 'deflate');
        res.removeHeader('Content-Length');
        res.writeHead(200);
        ws.pipe(zlib.createDeflate()).pipe(res);
        Severity: Major
        Found in apps/meteor/app/file-upload/server/config/GridFS.ts and 1 other location - About 1 hr to fix
        apps/meteor/app/file-upload/server/config/GridFS.ts on lines 105..111

        Duplicated Code

        Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

        Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

        When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

        Tuning

        This issue has a mass of 65.

        We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

        The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

        If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

        See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

        Refactorings

        Further Reading

        Similar blocks of code found in 2 locations. Consider refactoring.
        Open

            if (accept.match(/\bgzip\b/)) {
        res.setHeader('Content-Encoding', 'gzip');
        res.removeHeader('Content-Length');
        res.writeHead(200);
        ws.pipe(zlib.createGzip()).pipe(res);
        Severity: Major
        Found in apps/meteor/app/file-upload/server/config/GridFS.ts and 1 other location - About 1 hr to fix
        apps/meteor/app/file-upload/server/config/GridFS.ts on lines 114..120

        Duplicated Code

        Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

        Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

        When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

        Tuning

        This issue has a mass of 65.

        We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

        The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

        If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

        See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

        Refactorings

        Further Reading

        Similar blocks of code found in 2 locations. Consider refactoring.
        Open

            [rs, out].forEach((stream) =>
        stream.on('error', (err) => {
            store.onReadError.call(store, err, fileId, file);
            out.end();
        }),
        Severity: Major
        Found in apps/meteor/app/file-upload/server/config/GridFS.ts and 1 other location - About 1 hr to fix
        apps/meteor/app/file-upload/server/config/GridFS.ts on lines 74..79

        Duplicated Code

        Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

        Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

        When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

        Tuning

        This issue has a mass of 61.

        We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

        The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

        If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

        See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

        Refactorings

        Further Reading

        Similar blocks of code found in 2 locations. Consider refactoring.
        Open

            [rs, ws].forEach((stream) =>
        stream.on('error', (err) => {
            store.onReadError.call(store, err, fileId, file);
            res.end();
        }),
        Severity: Major
        Found in apps/meteor/app/file-upload/server/config/GridFS.ts and 1 other location - About 1 hr to fix
        apps/meteor/app/file-upload/server/config/GridFS.ts on lines 134..139

        Duplicated Code

        Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

        Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

        When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

        Tuning

        This issue has a mass of 61.

        We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

        The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

        If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

        See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

        Refactorings

        Further Reading

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