# Simple Archiver

This program ~~is not yet~~ ~~almost~~ basically finished! ~~Basic~~ Necessary
functionality is implemented and only ~~some advanced features are missing~~
some extra features are not yet implemented. You can track progress
[here](https://git.seodisparate.com/stephenseo/SimpleArchiver/projects/3).

This program exists because I could not get `tar` or `ar` to compile with
[Cosmopolitan](https://justine.lol/cosmopolitan/index.html). Thus, this
archiver will be written with support for Cosmopolitan in mind. This means
sticking to the C programming language and possibly using Cosmopolitan-specfic
API calls.

## Usage

    Usage flags:
    -c : create archive file
    -x : extract archive file
    -t : examine archive file
    -f <filename> : filename to work on
      Use "-f -" to work on stdout when creating archive or stdin when reading archive
      NOTICE: "-f" is not affected by "-C"!
    -C <dir> : Change current working directory before archiving/extracting
    --compressor <full_compress_cmd> : requires --decompressor and cmd must use stdin/stdout
    --decompressor <full_decompress_cmd> : requires --compressor and cmd must use stdin/stdout
      Specifying "--decompressor" when extracting overrides archive file's stored decompressor cmd
    --overwrite-create : allows overwriting an archive file
    --overwrite-extract : allows overwriting when extracting
    --no-abs-symlink : do not store absolute paths for symlinks
    --preserve-symlinks : preserve the symlink's path on archive creation instead of deriving abs/relative paths, ignores "--no-abs-symlink" (It is not recommended to use this option, as absolute-path-symlinks may be clobbered on extraction)
    --no-safe-links : keep symlinks that link to outside archive contents
    --temp-files-dir <dir> : where to store temporary files created when compressing (defaults to current working directory)
    --write-version <version> : Force write version file format (default 1)
    --chunk-min-size <bytes> : v1 file format minimum chunk size (default 4194304 or 4MiB)
    --no-pre-sort-files : do NOT pre-sort files by size (by default enabled so that the first file is the largest)
    -- : specifies remaining arguments are files to archive/extract
    If creating archive file, remaining args specify files to archive.
    If extracting archive file, remaining args specify files to extract.

Note that `--compressor` and `--decompressor` cmds must accept data from stdin
and return processed data to stdout.

## Using the Cosmopolitan-Compiled Version

Note that on Linux, the `actually_portable_simplearchiver` binaries may attempt
to open via Wine (if Wine is installed). [A workaround is mentioned here.](https://github.com/jart/cosmopolitan/blob/master/README.md#linux)

## Changes

See the [Changelog](https://git.seodisparate.com/stephenseo/SimpleArchiver/src/branch/main/Changelog.md).

## LICENSE Information

Uses the [ISC License](https://choosealicense.com/licenses/isc/).