Enum SqpkCommand 

pub enum SqpkCommand {
    AddData(Box<SqpkAddData>),
    DeleteData(SqpkDeleteData),
    ExpandData(SqpkExpandData),
    Header(SqpkHeader),
    TargetInfo(SqpkTargetInfo),
    File(Box<SqpkFile>),
    Index(SqpkIndex),
    PatchInfo(SqpkPatchInfo),
}

Sub-command of a SQPK chunk; the variant is selected by the command byte.

Each variant wraps the parsed body of its corresponding sub-command. AddData and File are heap-allocated to keep the enum from inflating the stack when used in iterators — SqpkAddData can carry a large inline data Vec, and SqpkFile carries both a path and a Vec of compressed blocks.

Two variants — Index and PatchInfo — carry metadata consumed by the indexed ZiPatch reader (not yet implemented) and have no direct filesystem effect; their SqpkCommand::apply arms return Ok(()) immediately.

Unknown sub-command bytes are never silently ignored: they surface as ParseError::UnknownSqpkCommand during parsing.

Variants

AddData(Box<SqpkAddData>)

SQPK A — write a data payload into a .dat file at a block offset, then zero a trailing range of blocks. See SqpkAddData.

DeleteData(SqpkDeleteData)

SQPK D — overwrite a contiguous block range with empty-block markers, logically freeing those blocks in the SqPack archive. See SqpkDeleteData.

ExpandData(SqpkExpandData)

SQPK E — extend a .dat file into previously unallocated space by writing empty-block markers. See SqpkExpandData.

Header(SqpkHeader)

SQPK H — write a 1024-byte SqPack header into a .dat or .index file at offset 0 (version header) or 1024 (secondary header). See SqpkHeader.

TargetInfo(SqpkTargetInfo)

SQPK T — declares the target platform and region for all subsequent path-resolution operations in this patch. See SqpkTargetInfo.

File(Box<SqpkFile>)

SQPK F — file-level operation: add a file from inline block payloads, delete a file, remove all files in an expansion folder, or create a directory tree. See SqpkFile and SqpkFileOperation.

Index(SqpkIndex)

SQPK I — add or remove a single SqPack index entry. Carries the index hash and block location for use by the indexed ZiPatch reader; has no direct apply effect. See SqpkIndex.

PatchInfo(SqpkPatchInfo)

SQPK X — patch install info: status, version, and declared post-patch install size. Metadata only; not applied to the filesystem. See SqpkPatchInfo.

Implementations

impl SqpkCommand

pub fn apply(&self, ctx: &mut ApplySession) -> Result<()>

Apply this SQPK sub-command to ctx.

• SqpkCommand::TargetInfo — updates ApplySession::platform in place.
• SqpkCommand::Index and SqpkCommand::PatchInfo — metadata only; returns Ok(()) without touching the filesystem.
• All other variants — delegate to the write/delete functions below.

Trait Implementations

impl Debug for SqpkCommand

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.