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# SNAG Package Manager
## Useful Subcommands
`install`/`inst` - install the specified package(s) (default)
`remove` - uninstall the specified package(s)
`upgrade/'up` - upgrade the package database
`find`/`search` - list packages whose metadata matches specified search string
`info`/`desc` - describe the metadata of the specified package(s)
`files` - list the installed files of the specified package(s)
`log` - open your pager to the build log of the specified package
`reason` - list why this package is installed (manually installed, as a dependency, from a group)
## Terminology
"Package Database" - the directory containing package descriptions
"Install Database" - the directory containing information on installed package
"Package Description" - the directory and script containing build instructions for a package
"Package Info/Metadata" - the metadata encoded in the package description
"Package Attribute" - a single key value property of the package info
## Package Format
Each package has a directory in the package database, named by its `id`.
Inside each package directory is the description script named `{id}.sh`
The description script should have functions for `configure`, `build`, and `install`
The description script should define variables for attributes with the name `pkg_{attr}`
> We're still deciding if we want the metadata to be split from the instruction in separate file(s).
Packages have the following attributes:
`id` - the identifier name of the package. everything uses this
`name` - the display name of package
`desc` - the short description of the package
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