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111 lines
3.1 KiB
Markdown
111 lines
3.1 KiB
Markdown
# ouch (_work in progress_)
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`ouch` is the Obvious Unified Compression (and decompression) Helper.
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| Supported formats | .tar | .zip | .tar.{.lz*,.gz, .bz} | .zip.{.lz*, .gz, .bz*} | .bz | .gz | .lz, .lzma |
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|-------------------|------|------|------------------------------|------------------------------|-----|-----|------------|
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| Decompression | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| Compression | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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## How does it work?
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`ouch` infers commands from the extensions of its command-line options.
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```
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ouch 0.1.2
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Vinícius R. Miguel
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ouch is a unified compression & decompression utility
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USAGE:
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ouch [OPTIONS] --input <input>...
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FLAGS:
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-h, --help Displays this message and exits
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-V, --version Prints version information
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OPTIONS:
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-i, --input <input>... The input files or directories.
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-o, --output <output> The output directory or compressed file.
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```
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### Examples
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#### Decompressing a bunch of files
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```bash
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$ ouch -i file{1..5}.zip another_file.tar.gz yet_another_file.tar.bz
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```
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When no output file is supplied, `ouch` infers that it must decompress all of its input files. This will error if any of the input files are not decompressible.
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#### Decompressing a bunch of files into a folder
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```bash
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$ ouch -i file{1..5}.tar.gz -o some-folder
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# Decompresses file1.tar.gz, file2.tar.gz, file3.tar.gz, file4.tar.gz and file5.tar.gz to some-folder
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# The folder `ouch` saves to will be created if it doesn't already exist
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```
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When the output file is not a compressed file, `ouch` will check if all input files are decompressible and infer that it must decompress them into the output file.
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#### Compressing files
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```bash
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$ ouch -i file{1..20} -o archive.tar
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```
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### Error scenarios
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#### No clear decompression algorithm
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```bash
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$ ouch -i some-file -o some-folder
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error: file 'some-file' is not decompressible.
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```
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`ouch` cannot infer `some-file`'s compression format since it lacks an extension. Likewise, `ouch` cannot infer that the output file given is a compressed file, so it shows the user an error.
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## Installation
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### Runtime dependencies
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`ouch` depends on a few widespread libraries:
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* libbz2
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* liblzma
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Both should be already installed in any mainstream Linux distribution.
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If they're not, then:
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* On Debian-based distros
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`sudo apt install liblzma-dev libbz2-dev`
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* On Arch-based distros
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`sudo pacman -S xz bzip2`
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The last dependency is a recent [Rust](https://www.rust-lang.org/) toolchain. If you don't have one installed, follow the instructions at [rustup.rs](https://rustup.rs/).
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### Build process
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Once the dependency requirements are met:
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* Installing from [Crates.io](https://crates.io)
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```bash
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cargo install ouch
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```
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* Cloning and building
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```bash
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git clone https://github.com/vrmiguel/ouch
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cargo install --path ouch
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# or
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cd ouch && cargo run --release
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```
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I also recommend stripping the release binary. `ouch`'s release binary (at the time of writing) only takes up a megabyte in space when stripped.
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