Functions/Test-GitCommit.ps1
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# 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. function Test-GitCommit { <# .SYNOPSIS Tests if a Git revision exists. .DESCRIPTION The `Test-GitCommit` function tests if a commit exists. You pass the revision you want to check to the `Revision` parameter and the repository in the current working directory is checked. If a commit exists, the function returns `$true`. Otherwise, it returns `$false`. To test for a commit in a specific repository, pass the path to that repository to the `RepoRoot` parameter. .EXAMPLE Test-GitCommit -Revision 'feature/test-gitcommit' Demonstrates how to check if a branch exists. In this example, if the branch `feature/test-gitcommit` exists, `$true` is returned. .EXAMPLE Test-GitCommit -Revision 'deadbee' Demonstrates how to check if a commit exists using its partial SHA hash. #> [CmdletBinding()] [OutputType([bool])] param( [Parameter(Mandatory=$true)] [string] # A revision to test, e.g. a branch name, partial commit SHA hash, full commit SHA hash, tag name, etc. # # See https://git-scm.com/docs/gitrevisions for documentation on how to specify Git revisions. $Revision, [string] # The path to the repository. Defaults to the current directory. $RepoRoot ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -Session $ExecutionContext.SessionState if( (Get-GitCommit -Revision $Revision -RepoRoot $RepoRoot -ErrorAction Ignore) ) { return $true } return $false } |