Pipeline/Pipeline.ps1
#region Copyright & License # Copyright © 2012 - 2022 François Chabot # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. #endregion Set-StrictMode -Version Latest <# .SYNOPSIS Tests whether there is anything in a pipeline. .DESCRIPTION This command will return $true if there is anything in the pipeline, or $false otherwise. .EXAMPLE PS> Get-ChildItem | Test-Any .NOTES See https://blogs.msdn.microsoft.com/jaredpar/2008/06/12/is-there-anything-in-that-pipeline/ © 2022 be.stateless. #> function Test-Any { [CmdletBinding()] [OutputType([bool])] param( [Parameter(ValueFromPipeline = $true)] [AllowEmptyCollection()] [PSObject[]] $InputObject ) begin { Resolve-ActionPreference -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState $any = $false } process { if (-not $any) { $InputObject | ForEach-Object -Process { $_ } | Where-Object -FilterScript { $null -ne $_ } | ForEach-Object -Process { $any = $true } } } end { $any } } <# .SYNOPSIS Tests whether there is nothing in a pipeline. .DESCRIPTION This command will return $true if there is nothing in the pipeline, or $false otherwise. .EXAMPLE PS> Get-ChildItem | Test-None .NOTES © 2022 be.stateless. #> function Test-None { [CmdletBinding()] [OutputType([bool])] param( [Parameter(ValueFromPipeline = $true)] [AllowEmptyCollection()] [PSObject[]] $InputObject ) begin { Resolve-ActionPreference -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState $none = $true } process { if ($none) { $InputObject | ForEach-Object -Process { $_ } | Where-Object -FilterScript { $null -ne $_ } | ForEach-Object -Process { $none = $false } } } end { $none } } # SIG # Begin signature block # MIII0QYJKoZIhvcNAQcCoIIIwjCCCL4CAQExCzAJBgUrDgMCGgUAMGkGCisGAQQB # gjcCAQSgWzBZMDQGCisGAQQBgjcCAR4wJgIDAQAABBAfzDtgWUsITrck0sYpfvNR # AgEAAgEAAgEAAgEAAgEAMCEwCQYFKw4DAhoFAAQUqdnoXOR9fCbCJvVtZNpxX94m # FUOgggVMMIIFSDCCAzCgAwIBAgIJAJkr3mJdTBkUMA0GCSqGSIb3DQEBCwUAMEEx # PzA9BgNVBAMeNgBpAGMAcgBhAGYAdABzAG8AZgB0AHcAYQByAGUAQABzAHQAYQB0 # AGUAbABlAHMAcwAuAGIAZTAeFw0yMTA2MjUxNDEyMjNaFw00MTA2MjAxNDEyMjNa # MEExPzA9BgNVBAMeNgBpAGMAcgBhAGYAdABzAG8AZgB0AHcAYQByAGUAQABzAHQA # YQB0AGUAbABlAHMAcwAuAGIAZTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoC # ggIBAOeqdUHBv7sxSeX3aj6yPKj7PAvs8izpVXjyEBl5aR8mQneVcXuF53AH7EW1 # 6E5p4+Az5pJPGUD5c3tXhiGMF7vgLhQjO6hlaVBRIqiIYHikNLwMNy6YBMc/QQYM # rPhqHEFsZ53dkBIIj3M8e3kFcTFA09n25yDtTPDab4nd9yUhc9Qc8+nfpIzfYsoP # 1pZ3nCzhw6hN2/44v1dkQrG3dRYwt+px65p6NPNZWEJpt4VCJjIFh+lBYJdxm9d4 # X/rAnlHIkbv7liOavWDzgHVabS3hdAWtcDmynm+7+FcZDFqPWNCl3e4SS7xe4s/R # CKFKA0IsfKkSk9YJlLgeSQIEXUOOWXJAGaLqnRD8xWLZsc4Oi9GZg7XV1mv/S88c # oztXnwtAN3OOlRKBh2QbomMgxeMO0GvsLE/cq5Q/YKAoz+KGr/7LcZq9jzQ8IPus # ZvWLeDXmxPiwJjpZc1koLgfGIEX2NStQTT3QmacWr9thrWcKvI+4uBmI4exS9B4a # R3nV91w5EY+2RoYsHqej9LWwNamO96+jMX9pxprTX+EkLUuMAikw/po8sBC9MUUn # 5pMWmUv7DCtQOLGGBDDMMMkn4ZcjpCEEdPGHRKfqNnD27ssGtDjiNzfQrsm67toU # bBwUF+gyJq/YckWquYJhA9ZOFWEADuIwGnsOzsoRvuQyY+p9AgMBAAGjQzBBMA4G # A1UdDwEB/wQEAwIHgDAWBgNVHSUBAf8EDDAKBggrBgEFBQcDAzAXBgNVHREEEDAO # ggxzdGF0ZWxlc3MuYmUwDQYJKoZIhvcNAQELBQADggIBACithYM3qckZRc9+Xbfu # a6gWr3HwjrW+FHKgjfrcOm8ZnLVapb9xFqsqrRQqd3RXWQDINEGrtI2rSfrzyfoK # UiTgldIfQNP1ZcGY229d++90t3hdo2mlt05hjYlbMENloJHpsEP0vQZmwOcEimCT # ex1pymYM+P9pj3j8UD1PT1eIZot6or8fBRl63UybyDSrM7L4UOkkAOniKxWy5pW6 # 6duS8SR+SZpr3Bv44NyXPj0Nv+MIpLmsLrd7XPBFmnGxzY01ZO9vzi9KEhM2wT5i # jPqHDNOvfPiADtAa+EyUBzdJiqy9heCz/TMZQgMWGwtfqJNxWZmsHcha2anW4Qt+ # mzrLO4GojWoVog9uVSAq+l0a+YQsd1u1kUmm4vgZCFyUA+lEp4LkI7ca2VBHkLPD # w+u2DoDMRiqFPZjO7BCKjGc0jj9B/qGR3JVt+tqDdB621xXf2YGF2oFvxZQ/keGt # 0ujfJ+JwN3nCulDAA4773q6KUnfykyrvAgITNbRJL6TngeRKtw9VIJBPxzqMzLpV # 5ggXNituwLaD1CCBJ1oo9DZHpL9gplXp1wGrelJOTiJhh+pdNsPtRH7CrranWa5h # LFLuigqin0eewQ5giJ1VaiBVEseOmiZog+27UpFIv40aDzgGL3YxB/Mu0ojwrQtp # WLmqJCmWnR5qxOm0yK+zNWe0MYIC7zCCAusCAQEwTjBBMT8wPQYDVQQDHjYAaQBj # AHIAYQBmAHQAcwBvAGYAdAB3AGEAcgBlAEAAcwB0AGEAdABlAGwAZQBzAHMALgBi # AGUCCQCZK95iXUwZFDAJBgUrDgMCGgUAoHgwGAYKKwYBBAGCNwIBDDEKMAigAoAA # oQKAADAZBgkqhkiG9w0BCQMxDAYKKwYBBAGCNwIBBDAcBgorBgEEAYI3AgELMQ4w # DAYKKwYBBAGCNwIBFTAjBgkqhkiG9w0BCQQxFgQUzsfmJ1Km2JAoTbw+8oyHhzzc # GkwwDQYJKoZIhvcNAQEBBQAEggIAdb1vOJgxBSATwyeMRpI9PgzeYH5CE/UgzGn/ # mUZDey0tL32Nyc1s2SX8P5FJHUq7XBvZJ7DpQugmVRQnWS/96nt5LZYVeKS6by4X # NEOLTausc7Y3X6a0pxb0QAqGv63u9Vrqld2glq1LaVkNA5DEgs9F3F6cB6FKedFS # +AkQ2xe4yDbtjvJ5Y/1sOJWxSz4MS0QSW+kDffFfKjYyuO7N8g4692veA4MFEPE1 # 9SQhxqMI+Lrqrl6+uI6gWBH9zjdPymaUCmZh4P9GvaJp/7RVB4K2OTlvAkhvKsdE # 8FWsuHRlcu060DM7mAdv6MkSfOgV6X6vbnnrPXN5KuI85NI2z10La44bpLmsWGmp # sQGC53Q9sHtn883uOsGkQ9rMfK/VQyW4FlZAZmEFptvdkzy332Ozf4UUR/1zOTF2 # 5DYLTm7ydxR03pQBCyoXw6bNyK3bZA+VBzbX1eltd+uvSIIln8gofiO1NCx6Sdrc # LC/KUIgPyPItB9DnA72YOjUs+DKok4GNPBFdi9urxea1dReyIvRrIZzbOA3wTbh9 # DNB/7R+AMVqtRo3Jf5JDTjJ3v80K+3wYsUyqUNKNxvVjy8neMcsFs5NnOO7yod+m # hY9+PPGK87j7Z2frYHxQnKxf36hz19NU1wiwBTcTIDAd8njTe01C2Wr8J/4IQgoY # /k6EviI= # SIG # End signature block |