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156 lines
5.2 KiB
Markdown
156 lines
5.2 KiB
Markdown
# KISS Alternative Package System
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This is a package system I am experimenting with. This format is an alternative to the usual `PKGBUILD`, `APKBUILD` and `Pkgfile` systems and explores a more unixy approach.
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**NOTE**: The package manager can be found here: [kiss](https://github.com/kissx/kiss)
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Each Package is split into multiple files.
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```sh
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zlib/ # Package name.
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├─ build # Build script.
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├─ depends # Dependencies (one per line) (sometimes optional).
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├─ sources # Sources (one per line).
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├─ version # Package version.
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┘
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# Files generated by the package manager.
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├─ manifest # The built package's files and directories.
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├─ checksums # The checksums for the source files.
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┘
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# Optional files.
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├─ post_install # Script to run after package installation.
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├─ patches/* # Directory to store patches.
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├─ files/* # Directory to misc files.
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┘
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```
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When a built package is installed, this entire directory tree is copied to `/var/db/kiss` where it becomes a database entry. Listing the dependencies for a package is a simple as printing the contents of the `depends` file. Searching for which package owns a file is as simple as checking each `manifest` file.
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This new structure also allows the package manager to be stupid simple. POSIX `sh` has no arrays. However, they are mimicked by looping over each line of each file. No more insecure `depends="pkg pkg pkg"` and `for pkg in $depends`.
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Instead, the following can be done.
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```sh
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while read -r depend; do
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# do thing.
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done < depends
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```
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This also means anyone can write a tool to manipulate the repository or even their own package manager. It's all plain text files delimited by a new line or a space.
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## Table of Contents
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<!-- vim-markdown-toc GFM -->
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* [The package format](#the-package-format)
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* [`build`](#build)
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* [`manifest`](#manifest)
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* [`sources`](#sources)
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* [`depends`](#depends)
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* [`version`](#version)
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* [`checksums`](#checksums)
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* [`post-install`](#post-install)
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<!-- vim-markdown-toc -->
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## The package format
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### `build`
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The `build` file should contain the necessary steps to patch, configure, build and install the package. The build script is sent a single argument. This argument points to the package directory. Whatever is in this directory will become part of the package's manifest and will be copied to `/` (or `$kiss_ROOT`). The first argument is frequently used in `make DESTDIR="$1" install` for example.
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The `build` file can be written in any language. The only requirement is that the file be executable.
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```sh
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./configure \
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--prefix=/usr \
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--libdir=/lib \
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--shared
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make
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make DESTDIR="$1" install
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```
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### `manifest`
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The `manifest` file contains the built package's file and directory list. The full paths to files are listed first and the directories (*in reverse*) follow. This allows the package manager to remove the directories if they are empty without needing checks in-between.
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The manifest also includes the package's database entry. You can install the package with or without `kiss` and it will be recognized.
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```
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/usr/share/man/man3/zlib.3
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/usr/include/zconf.h
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/usr/include/zlib.h
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/var/db/kiss/zlib/sources
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/var/db/kiss/zlib/manifest
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/var/db/kiss/zlib/checksums
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/var/db/kiss/zlib/build
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/var/db/kiss/zlib/version
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/lib/libz.so.1.2.11
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/lib/libz.so.1
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/lib/libz.so
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/lib/libz.a
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/lib/pkgconfig/zlib.pc
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/var/db/kiss/zlib
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/var/db/kiss
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/var/db
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/var
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/usr/share/man/man3
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/usr/share/man
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/usr/share
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/usr/include
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/usr
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/lib/pkgconfig
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/lib
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```
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### `sources`
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The `sources` file contains the package's sources one per line. Sources can be local or remote.
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An optional destination field can be added to tell the package manager where to extract the source. This is relative to the regular extraction directory. The passed directories are also created.
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```
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https://www.openssl.org/source/openssl-X.X.X.tar.gz
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patches/fix-musl.patch
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https://www.openssl.org/source/openssl-X.X.X.tar.gz lib/example/
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git:https://github.com/dylanaraps/neofetch
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```
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### `depends`
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The `depends` file contains the package's dependencies one per line. An optional field can be added to specify whether a dependency is needed at compile time. This may later be extended to allow for optional runtime dependencies.
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**NOTE**: A dependency without a secondary field is assumed to be a runtime dependency.
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```
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zlib make
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binutils make
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openssl
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```
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### `version`
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The `version` file contains the package's version as well as its release number. The format of this file is `version release`. The `release` portion allows a package upgrade without the modification of the version number.
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The version can also be `git 1` to specify that the package is built from the latest `git` head.
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```
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1.2.11 1
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```
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### `checksums`
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The `checksums` file contains the `sha256` sums of each entry in the `sources` file. This is generated and verified automatically.
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```
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c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1 zlib-1.2.11.tar.gz
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```
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### `post-install`
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The `post-install` file should contain any steps required directly after the package is installed. This includes updating font databases and creating any post-install symlinks which may be required.
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