(Go) Find a ZIP Entry by Exact Path Using EntryOf

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This example demonstrates how to use the EntryOf method to find a ZIP entry whose stored path exactly matches a specified path.

Unlike EntryMatching, which performs wildcard matching, EntryOf performs an exact path lookup.

This method is useful when:

• The exact ZIP path is already known
• Retrieving a specific file or directory entry
• Verifying whether a particular entry exists in the ZIP archive

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
images/logo.png
data/config/settings.json

ZIP archives may optionally contain explicit directory entries such as docs/. These directory entries can also be retrieved using EntryOf.

The example:

• Finds an exact file entry
• Finds an exact directory entry
• Demonstrates the difference between file and directory entries

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    success := false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    success = false

    // Open an existing ZIP archive.
    zip := chilkat.NewZip()

    success = zip.OpenZip("example.zip")
    if success == false {
        fmt.Println(zip.LastErrorText())
        zip.DisposeZip()
        return
    }

    entry := chilkat.NewZipEntry()

    // ------------------------------------------------------------
    // Find a specific file entry by its exact ZIP path.

    success = zip.EntryOf("docs/readme.txt",entry)

    if success == true {
        fmt.Println("Found file entry:")
        fmt.Println("  FileName = ", entry.FileName())
        fmt.Println("  IsDirectory = ", entry.IsDirectory())
        fmt.Println("")
    }

    // ------------------------------------------------------------
    // Find a directory entry.
    // 
    // ZIP archives may optionally contain explicit directory entries.
    // In this example, "docs/" is a separate directory entry.

    success = zip.EntryOf("docs/",entry)

    if success == true {
        fmt.Println("Found directory entry:")
        fmt.Println("  FileName = ", entry.FileName())
        fmt.Println("  IsDirectory = ", entry.IsDirectory())
        fmt.Println("")
    }

    // ------------------------------------------------------------
    // Attempt to find a non-existent entry.

    success = zip.EntryOf("images/missing.png",entry)

    if success == false {
        fmt.Println("The entry images/missing.png was not found.")
    }

    zip.CloseZip()

    fmt.Println("Done.")

    zip.DisposeZip()
    entry.DisposeZipEntry()