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Package files provide an easy way to manage software on SvarDOS. These
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packages must adhere to a strict convention so they can be handled properly
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by the SvarDOS package manager.
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%hPackage filenames
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Packages names must follow some basic rules. They shall be max. 8 letters long
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(but should not be too short either, since a 1 or 2-letters package name might
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be confusing), and must not be composed of characters other than a-b, 0-9 and
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'_'. This for backward compatibility with short file names (8+3) and ISO 9660
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file systems (used on CDROMs). The package filename is always followed by the
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.ZIP extension.
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%hPackage files
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SvarDOS uses ZIP files as its package file format. This format has been chosen
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because ZIP files under DOS have become the de facto way to distribute
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collections of files. Also, the ZIP file format is well documented, well
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supported, and in the public domain.
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Here below is the recommended command line that can be used to create a
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package for a program named EXAMPLE using info-zip:
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zip -9rkDX EXAMPLE.ZIP subdir1 subdir2 ... subdirN
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If you are using 7za to create your packages, then use this:
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7za a -mm=deflate -mx=9 -tzip EXAMPLE.ZIP subdir1 subdir2 ... subdirN
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%hPackage directory structure
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The directory structure of a package depends on the type of packages.
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For "core" packages, we have this:
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APPINFO Put the program's LSM file here
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BIN Binaries, such as exe and com files
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DOC\PKGNAME Package documentation
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HELP Used ONLY by the "help" package
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NLS\PKGNAME Localizations (NLS language files) of the package
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SOURCE\PKGNAME The source code (optional)
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Non-core packages use a slightly different directory organization. For
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example, if we were to consider a package FOO, we might end up with the
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following structure:
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APPINFO\FOO.LSM Package meta file for the FOO program
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PROGS\FOO\FOO.EXE The program's executable
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PROGS\FOO\FOO.TXT Some documentation
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PROGS\FOO\FILE.DAT Data file used by the FOO program
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SOURCE\FOO\* here would be stored the foo's source code (optional)
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Note the 'PROGS' directory above. This is a category to which the package
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belong. The package installer might change this directory at install time,
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depending on the user's preferences. Possible categories are listed below:
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Category | Description
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DEVEL | Development tools (mostly compilers)
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DRIVERS | Drivers
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GAMES | Games
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PROGS | User programs, tools...
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Note: "DOC", "NLS", "BIN" and "HELP" directories are strictly reserved to
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CORE packages.
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%hLSM meta-data files
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Every package MUST contain an LSM file in its "APPINFO" directory. This LSM
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file is a text file that contains basic information about the package. Its
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format is very simple, it must contain at least two lines:
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version: x.y.z
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description: package description
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Any other lines are ignored by the SvarDOS package manager.
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%hPackage versions
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The version present in the LSM file is meant to reflect the version of the
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packaged software, but it may happen that a package needs to be changed to
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fix a strictly packaging-related issue (for example a forgotten documentation
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file or a recompilation of the binary using a better set of flags...). In such
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case, the version of the software does not change, but the version of the
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package itself needs to change so users know something changed. That's where
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"SvarDOS revisions" come in. A version string is basically following such
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format:
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UPSTREAM_VER[+SVARREV]
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UPSTREAM_VER is the exact version string advertised by the software. It may
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be pretty much anything. This upstream version may be optionally followed by a
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plus sign and the SvarDOS revision. In the event that the upstream version
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already contains a plus sign, then SvarDOS revision is delimited with a tilde.
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The SvarDOS revision starts at 0 and increments each time that the given
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upstream revision is repackaged. The SvarDOS revision restarts whenever the
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upstream version changes. The SvarDOS revision of 0 is always hidden.
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Examples:
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FDISK 1.54 <- originally packaged version
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FDISK 1.54+1 <- package has been changed, but not the upstream version
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FDISK 1.55 <- upstream version increased, so SvarDOS rev restarts
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FDISK 1.55+1 <- new version of the package, but still contains FDISK 1.55
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FDISK 1.55+2 <- another new version of the package, etc
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