replace with regular expression in azure devops

Question

I want to take this buildVariable

Build.SourceVersion

which will equal for example:

0gc58d92d905d62415b8866g3f48f17416da426s

And replace from digit [7] till line end with empty string

0gc58d92

I tried

- ShortCommitId: ${{ replace(variables['Build.SourceVersion'], '[[8]-$]','') }}

but it didn't work

Answer 1

The substring() method will take the string value from Build.SourceVersion and can be passed two int parameters. One will output the string value starting at a specific character position, and the other tell it what subsequent character positions characters to output.

$a = "0gc58d92d905d62415b8866g3f48f17416da426s"
$a.substring(0,7)

Output

0gc58d9

Pass the substring() method just one int parameter telling it the starting character position to just output all subsequent character position characters until the end of the string.

$a = "0gc58d92d905d62415b8866g3f48f17416da426s"
$a.substring(8)

Output

d905d62415b8866g3f48f17416da426s

Supporting Resource

• Substring()

• String.Substring Method

  Substring(Int32)

  • Retrieves a substring from this instance. The substring starts at a specified character position and continues to the end of the string.

  Substring(Int32, Int32)

  • Retrieves a substring from this instance. The substring starts at a specified character position and has a specified length.