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#!/usr/bin/ruby | |
def try(cmd) | |
puts cmd | |
success = system(cmd) | |
raise unless success | |
end | |
def current_commit() | |
`git rev-parse head`.chomp | |
end | |
old_commit = ARGV[0] | |
raise "usage: `./update.rb <commit you want to update>" unless old_commit | |
tip = current_commit() | |
try("git add --all && git checkout #{old_commit} && git commit --amend --no-edit") | |
new_commit = current_commit() | |
try("git checkout - && git rebase --onto #{new_commit} #{old_commit}") |
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