[Bug] Errors on scoop alias list when config.json is empty

[rashil2000]

Bug Report

Current Behavior

When the aliases property of config.json is empty, the command scoop alias list throws a ton of errors.

Expected Behavior

It should show no output at all.

Additional context/output

Click to see stacktrace

~                                                                                            in [pwsh] at •100% 23:45:23
❯ scoop alias list
Get-Content: C:\Users\username\scoop\apps\scoop\current\lib\commands.ps1:22
Line |
  22 |          $line = ((Get-Content $shim_path) | Where-Object { $_.startsw …
     |                    ~~~~~~~~~~~~~~~~~~~~~~
     | Cannot find path 'C:\Users\username\scoop\shims\scoop-IsReadOnly.ps1' because it does not exist.
Get-Content: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:91

Line |

91 |          $content = Get-Content (command_path $_.Name)

|                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-IsReadOnly.ps1' because it does not exist.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:92

Line |

92 |          $command = ($content | Select-Object -Skip 1).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:93

Line |

93 |          $summary = (summary $content).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
Get-Content: C:\Users\username\scoop\apps\scoop\current\lib\commands.ps1:22

Line |

22 |          $line = ((Get-Content $shim_path) | Where-Object { $_.startsw …

|                    ~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-IsFixedSize.ps1' because it does not exist.
Get-Content: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:91

Line |

91 |          $content = Get-Content (command_path $_.Name)

|                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-IsFixedSize.ps1' because it does not exist.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:92

Line |

92 |          $command = ($content | Select-Object -Skip 1).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:93

Line |

93 |          $summary = (summary $content).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
Get-Content: C:\Users\username\scoop\apps\scoop\current\lib\commands.ps1:22

Line |

22 |          $line = ((Get-Content $shim_path) | Where-Object { $_.startsw …

|                    ~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-IsSynchronized.ps1' because it does not

| exist.
Get-Content: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:91

Line |

91 |          $content = Get-Content (command_path $_.Name)

|                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-IsSynchronized.ps1' because it does not

| exist.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:92

Line |

92 |          $command = ($content | Select-Object -Skip 1).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:93

Line |

93 |          $summary = (summary $content).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
Get-Content: C:\Users\username\scoop\apps\scoop\current\lib\commands.ps1:22

Line |

22 |          $line = ((Get-Content $shim_path) | Where-Object { $_.startsw …

|                    ~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-Keys.ps1' because it does not exist.
Get-Content: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:91

Line |

91 |          $content = Get-Content (command_path $_.Name)

|                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-Keys.ps1' because it does not exist.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:92

Line |

92 |          $command = ($content | Select-Object -Skip 1).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:93

Line |

93 |          $summary = (summary $content).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
Get-Content: C:\Users\username\scoop\apps\scoop\current\lib\commands.ps1:22

Line |

22 |          $line = ((Get-Content $shim_path) | Where-Object { $_.startsw …

|                    ~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-Values.ps1' because it does not exist.
Get-Content: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:91

Line |

91 |          $content = Get-Content (command_path $_.Name)

|                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-Values.ps1' because it does not exist.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:92

Line |

92 |          $command = ($content | Select-Object -Skip 1).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:93

Line |

93 |          $summary = (summary $content).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
Get-Content: C:\Users\username\scoop\apps\scoop\current\lib\commands.ps1:22

Line |

22 |          $line = ((Get-Content $shim_path) | Where-Object { $_.startsw …

|                    ~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-SyncRoot.ps1' because it does not exist.
Get-Content: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:91

Line |

91 |          $content = Get-Content (command_path $_.Name)

|                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-SyncRoot.ps1' because it does not exist.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:92

Line |

92 |          $command = ($content | Select-Object -Skip 1).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:93

Line |

93 |          $summary = (summary $content).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
Get-Content: C:\Users\username\scoop\apps\scoop\current\lib\commands.ps1:22

Line |

22 |          $line = ((Get-Content $shim_path) | Where-Object { $_.startsw …

|                    ~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-Count.ps1' because it does not exist.
Get-Content: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:91

Line |

91 |          $content = Get-Content (command_path $_.Name)

|                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| Cannot find path 'C:\Users\username\scoop\shims\scoop-Count.ps1' because it does not exist.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:92

Line |

92 |          $command = ($content | Select-Object -Skip 1).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
InvalidOperation: C:\Users\username\scoop\apps\scoop\current\libexec\scoop-alias.ps1:93

Line |

93 |          $summary = (summary $content).Trim()

|          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

| You cannot call a method on a null-valued expression.
Count

IsFixedSize

IsReadOnly

IsSynchronized

Keys

SyncRoot

Values

Possible Solution

The aliases it's looking for are the properties of a PowerShell object itself. Can be remedied by properly checking if aliases filed exists in the config.json file.

System details

Windows version: 10

OS architecture: 64bit

PowerShell version: Both 5.1 and 7.2.0

Additional software: None

Scoop Configuration

{
    "lastupdate": "2022-01-12T13:54:11.0126966+05:30",
    "SCOOP_REPO": "https://github.com/lukesampson/scoop",
    "SCOOP_BRANCH": "develop",
    "aria2-enabled": false,
    "shim": "kiennq",
    "manifest-review": true
}

[rashil2000]

Oops, my bad

#3528