FarNet.SQLite 0.4.2

FarNet.SQLite

System.Data.SQLite package for FarNet and PowerShell.

Package

The package is designed for FarNet. To install FarNet and FarNet.SQLite, follow these steps.

The NuGet package FarNet.SQLite is installed to %FARHOME%\FarNet\Lib\FarNet.SQLite.

Included assets:

• System.Data.SQLite.dll

  The original .NET API from the SQLite team.

• FarNet.SQLite.dll

  Helper methods to simplify typical tasks routine coding.
  They are designed for C# and F# and used in PowerShell.

• FarNet.SQLite.psd1, ...

  The PowerShell module with FarNet.SQLite.dll helpers.
  Consider using the module in scripts, this way is much easier.

• FarNet.SQLite.ini

  The configuration file for F# scripts (FarNet.FSharpFar).

Sample scripts

• FSharp
• PowerShell

PowerShell module

The installed package includes the PowerShell module. Its cmdlets make work with FarNet.SQLite in PowerShell easier, especially in interactive sessions.

The module may be used right out of the box, i.e. imported as:

Import-Module $env:FARHOME\FarNet\Lib\FarNet.SQLite

But it is better to install this module in PowerShell, so that you can:

Import-Module FarNet.SQLite

This is not just about the shorter command:

• For scripts outside Far Manager, this way does not need the variable FARHOME defined.
• In many cases you do not need to import the module, PowerShell discovers module commands.

Install the module

Use the steps below to "install" the module as a symbolic link or junction.

(1) Choose one of the module directories, see $env:PSModulePath. For example:

• C:\Program Files\WindowsPowerShell\Modules

  This folder is used by PowerShell Core and Windows PowerShell. If you have rights, this is the recommended location.

• C:\Users\<user>\Documents\PowerShell\Modules

  This folder is used by PowerShell Core.

• C:\Users\<user>\Documents\WindowsPowerShell\Modules

  This folder is used by Windows PowerShell.

(2) Change to the selected directory, and create the symbolic link FarNet.SQLite to the original FarNet.SQLite folder:

New-Item -Path FarNet.SQLite -ItemType SymbolicLink -Value $env:FARHOME\FarNet\Lib\FarNet.SQLite

Ensure you have the environment variable FARHOME defined or adjust the above command.

Alternatively, you may manually create the similar folder junction point in Far Manager using AltF6.

Now you have the PowerShell module installed. You may update the FarNet package as usual. The symbolic link or junction do not have to be updated, they point to the same location.

Explore commands

# import the module
Import-Module FarNet.SQLite

# get its commands
Get-Command -Module FarNet.SQLite

# see command help
help Open-SQLite

Typical scripts

Reading data

Import-Module FarNet.SQLite
Open-SQLite db.sqlite -ReadOnly
try {
    # work with Get-SQLite
    ...
}
finally {
    Close-SQLite
}

Writing data

Import-Module FarNet.SQLite
Open-SQLite db.sqlite -Transaction
try {
    # work with Get-SQLite and Set-SQLite
    ...
    # commit work
    Complete-SQLite
}
finally {
    Close-SQLite
}

See also

• FarNet.SQLite Release Notes
• System.Data.SQLite
• SQLite