Using Ruby to execute Powershell command in Git Hooks

Question

I am using Git on Windows and trying to include unit testing in the workflow. If the commit message contain a keyword. The commit-msg hook will trigger Powershell command to run some Nunit tests.

This is my ruby code in the hook

#!/usr/bin/env ruby
message_file = ARGV[0]
message = File.read(message_file)

puts "The commit message is " + message

$regex = /(#runtest)/

if $regex.match(message)
    exec 'powershell.exe -ExecutionPolicy RemoteSigned -Command {RunNunitTestCase}'
end

However when I commit a changes, the result is like below. The exec line was run but do nothing.

PS D:\testfolder> git commit -am '#runtest'
The commit message is #runtest
[authorupdate b14878d] 123
 1 files changed, 1 insertions(+), 0 deletions(-)

I am new to ruby and powershell. Feel free to comment if this workflow is feasible or you have a better approach.

Thank you.

seanbun · Accepted Answer · 2012-08-24 06:14:53Z

2

The curly bracket needs to be escaped.

exec "powershell.exe -ExecutionPolicy RemoteSigned -Command & \{RunNunitTestCase\}

answered Aug 24, 2012 at 6:14

seanbun

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Comments

manojlds · Accepted Answer · 2012-04-19 09:14:33Z

1

I tried the exact script with the exec line being:

exec 'powershell.exe -ExecutionPolicy RemoteSigned -Command gps'

and it did print out the output of gps when I did git commit -m "#runtest"

So it does run the command and it does work.

Make sure that whatever you are executing does work. Grab the powershell line and try it out on commandline directly.

answered Apr 19, 2012 at 9:14

manojlds

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2 Comments

seanbun Over a year ago

Thank you @manojlds. I found the problem on the curly bracket. It need to be escaped. exec "powershell.exe -ExecutionPolicy RemoteSigned -Command & \{RunNunitTestCase\}" Or I can simply remove the brackets in this case.

manojlds Over a year ago

@seanbun - If it helped you, you can accept this as answer ( the tick to the left)

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