Rpmfile

https://github.com/srossross/rpmfile
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rpmfile is a Python module that provides tools for inspecting RPM files, modeled after the tarfile...
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### Install rpmfile Python package

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This command installs the `rpmfile` Python package using pip. It ensures the latest version is installed globally or in the current environment.

```console
$ python -m pip install -U rpmfile
```

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### Install zstandard for zstd compressed RPMs

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This command installs the `zstandard` Python module, which is required to use `rpmfile` with zstd-compressed RPM archives. Python 3.5 or higher is necessary for zstd support.

```console
$ python -m pip install -U zstandard
```

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### List RPM contents from URL via command line

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This command-line example shows how to pipe a downloaded and decompressed RPM file to `rpmfile` to list its contents. It uses `curl` to fetch the file, `gzip -d` to decompress, and `python -m rpmfile -l -` to list members from standard input.

```console
curl -sfL 'https://example.com/some.rpm.gz' | gzip -d - | python -m rpmfile -l -
./path/to/file
```

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### Format Python code with Black for contributions

Source: https://github.com/srossross/rpmfile/blob/master/README.md

These commands install the specific version of the `black` formatter required for contributions and then apply it to the current directory. This ensures consistent code style across the project.

```console
$ pip install black==19.10b0
$ black .
```

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### Inspect and Extract RPM files using Python rpmfile

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This Python example demonstrates how to open an RPM file, inspect its headers (e.g., `arch`), extract a specific file object, and iterate through all members in the archive. It uses the `rpmfile.open` context manager for safe file handling.

```python
import rpmfile

with rpmfile.open('file.rpm') as rpm:

    # Inspect the RPM headers
    print(rpm.headers.keys())
    print(rpm.headers.get('arch', 'noarch'))

    # Extract a fileobject from the archive
    fd = rpm.extractfile('./usr/bin/script')
    print(fd.read())

    for member in rpm.getmembers():
        print(member)
```

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### Display RPM package information via command line

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This command displays detailed information about an RPM package, similar to `rpm -qip` in Linux. It pipes the RPM content from a URL and uses `rpmfile -i -` to show metadata like Name, Version, Architecture, and Summary.

```console
curl -sfL 'https://example.com/some.rpm.gz' |gzip -d - | rpmfile -i -
Name        : something
Version     : 1.02
Release     : 1
Architecture: noarch
Group       : default
Size        : 1234
License     : BSD
Signature   : None
Source RPM  : some.src.rpm
Build Date  : Tue Apr  9 08:55:16 2019
Build Host  : demo
URL         : http://example.com/some
Summary     : Example of something
Description : 
The description of something.
It can display more than one line.
```

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### Extract all files from RPM via command line

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This command demonstrates extracting all files from an RPM archive piped from a URL. The `-xv` flags enable verbose extraction, outputting the paths of extracted files.

```console
curl -sfL 'https://example.com/some.rpm.gz' | gzip -d - | rpmfile -xv -
./path/to/file
```

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### rpmfile Python API Classes

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This section outlines the core classes provided by the `rpmfile` module for interacting with RPM archives. `RPMFile` serves as the primary interface for an archive, while `RPMInfo` represents individual members within it.

```APIDOC
rpmfile.RPMFile: The RPMFile object provides an interface to a RPM archive
rpmfile.RPMInfo: An RPMInfo object represents one member in a RPMFile.
```

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### Extract RPM files to a specified directory via command line

Source: https://github.com/srossross/rpmfile/blob/master/README.md

This command extracts files from an RPM archive to a target directory, `/tmp`, using the `-C` flag. It's useful for controlling where the extracted contents are placed.

```console
curl -sfL 'https://example.com/some.rpm.gz' | gzip -d - | rpmfile -xvC /tmp -
/tmp/path/to/file
```
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