Fix version parsing for snapshot/test builds (-T prefix)

- Get-FirebirdEnvironment: match both -V (release) and -T (test) prefixes
- Get-FirebirdVersion: parse -T prefix, add IsSnapshot property
- Tests: add v6 snapshot version string parsing tests

Author: fdcastel

Public/Get-FirebirdEnvironment.ps1

@@ -35,7 +35,8 @@ function Get-FirebirdEnvironment {
     } -SuccessExitCodes @(0,1) -Passthru -ErrorMessage 'Failed to run gstat command. Cannot determine Firebird version.'
 
     $version = $null
-    if ($gstatResult.StdOut[0] -match '\-V(\d+\.\d+\.\d+\.\d+)') {
+    if ($gstatResult.StdOut[0] -match '\-[VT](\d+\.\d+\.\d+\.\d+)') {
+        Write-VerboseMark -Message "Parsed Firebird version from gstat: $($matches[1])"
         $version = $matches[1]
     } else {
         throw "Cannot determine Firebird version. Unexpected gstat output: $($gstatResult.StdOut)"

Public/Get-FirebirdVersion.ps1

@@ -10,8 +10,10 @@ function Get-FirebirdVersion {
         - 'LI-V5.0.3.1683 Firebird 5.0'
         - 'WI-V4.0.5.3140 Firebird 4.0'
         - 'LI-V3.0.12.33787 Firebird 3.0'
+        - 'WI-T6.0.0.1887 Firebird 6.0 2e18929' (snapshot/test builds)
 
         Also accepts just the version prefix (e.g. 'LI-V5.0.3.1683').
+        The 'V' prefix indicates a release build; 'T' indicates a test/snapshot build.
     .PARAMETER VersionString
         The Firebird version string to parse. Can be piped.
     .EXAMPLE
@@ -29,7 +31,7 @@ function Get-FirebirdVersion {
     )
 
     process {
-        if ($VersionString -notmatch '^(LI|WI)-V(\d+\.\d+\.\d+)\.(\d+)(.*)$') {
+        if ($VersionString -notmatch '^(LI|WI)-([VT])(\d+\.\d+\.\d+)\.(\d+)(.*)$') {
             throw "Cannot parse Firebird version string: '$VersionString'"
         }
 
@@ -38,16 +40,18 @@ function Get-FirebirdVersion {
             'WI' { 'Windows' }
         }
 
-        $version = [semver]$Matches[2]
-        $build = [int]$Matches[3]
-        $remainder = $Matches[4].Trim()
+        $isSnapshot = $Matches[2] -eq 'T'
+        $version = [semver]$Matches[3]
+        $build = [int]$Matches[4]
+        $remainder = $Matches[5].Trim()
         $serverName = if ($remainder -ne '') { $remainder } else { $null }
 
         [PSCustomObject]@{
             Platform   = $platform
             Version    = $version
             Build      = $build
             ServerName = $serverName
+            IsSnapshot = $isSnapshot
         }
     }
 }

Tests/Get-FirebirdVersion.Tests.ps1

@@ -1,12 +1,29 @@
 Import-Module "$PSScriptRoot/../PSFirebird.psd1" -Force
 
 Describe 'Get-FirebirdVersion' -Tag 'Unit' {
+    It 'Parses a Firebird 6.x snapshot (test build) version string' {
+        $result = Get-FirebirdVersion 'WI-T6.0.0.1887 Firebird 6.0 2e18929'
+        $result.Platform | Should -Be 'Windows'
+        $result.Version | Should -Be '6.0.0'
+        $result.Build | Should -Be 1887
+        $result.ServerName | Should -Be 'Firebird 6.0 2e18929'
+        $result.IsSnapshot | Should -BeTrue
+    }
+
+    It 'Parses a Linux snapshot version string' {
+        $result = Get-FirebirdVersion 'LI-T6.0.0.1887 Firebird 6.0 2e18929'
+        $result.Platform | Should -Be 'Linux'
+        $result.Version | Should -Be '6.0.0'
+        $result.IsSnapshot | Should -BeTrue
+    }
+
     It 'Parses a Firebird 5.x Linux version string' {
         $result = Get-FirebirdVersion 'LI-V5.0.3.1683 Firebird 5.0'
         $result.Platform | Should -Be 'Linux'
         $result.Version | Should -Be '5.0.3'
         $result.Build | Should -Be 1683
         $result.ServerName | Should -Be 'Firebird 5.0'
+        $result.IsSnapshot | Should -BeFalse
     }
 
     It 'Parses a Firebird 4.x Windows version string' {