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|
# frozen_string_literal: true
module Gitlab
module Git
class Hook
def self.directory
Gitlab.config.git.hooks_directory
end
def self.legacy_hooks_directory
File.join(Gitlab.config.gitlab_shell.path, 'hooks')
end
GL_PROTOCOL = 'web'
attr_reader :name, :path, :repository
def initialize(name, repository)
@name = name
@repository = repository
@path = File.join(self.class.directory, name)
end
def repo_path
repository.path
end
def exists?
File.exist?(path)
end
def trigger(gl_id, gl_username, oldrev, newrev, ref)
return [true, nil] unless exists?
Bundler.with_clean_env do
case name
when "pre-receive", "post-receive"
call_receive_hook(gl_id, gl_username, oldrev, newrev, ref)
when "update"
call_update_hook(gl_id, gl_username, oldrev, newrev, ref)
end
end
end
private
def call_receive_hook(gl_id, gl_username, oldrev, newrev, ref)
changes = [oldrev, newrev, ref].join(" ")
exit_status = false
exit_message = nil
vars = env_base_vars(gl_id, gl_username)
options = {
chdir: repo_path
}
Open3.popen3(vars, path, options) do |stdin, stdout, stderr, wait_thr|
exit_status = true
stdin.sync = true
# in git, pre- and post- receive hooks may just exit without
# reading stdin. We catch the exception to avoid a broken pipe
# warning
begin
# inject all the changes as stdin to the hook
changes.lines do |line|
stdin.puts line
end
rescue Errno::EPIPE
end
stdin.close
# Reading from pipes needs to be non-blocking to avoid deadlocks
out_reader = Thread.new { stdout.read }
err_reader = Thread.new { stderr.read }
stdout_messages = out_reader.value
stderr_messages = err_reader.value
unless wait_thr.value == 0
exit_status = false
exit_message = retrieve_error_messages(stderr_messages, stdout_messages)
end
end
[exit_status, exit_message]
end
def call_update_hook(gl_id, gl_username, oldrev, newrev, ref)
options = {
chdir: repo_path
}
args = [ref, oldrev, newrev]
vars = env_base_vars(gl_id, gl_username)
stdout, stderr, status = Open3.capture3(vars, path, *args, options)
exit_message = if status.success?
nil
else
retrieve_error_messages(stderr, stdout)
end
[status.success?, exit_message]
end
def retrieve_error_messages(stderr, stdout)
stderr.presence || stdout
end
def env_base_vars(gl_id, gl_username)
{
'GITLAB_SHELL_DIR' => Gitlab.config.gitlab_shell.path,
'GL_ID' => gl_id,
'GL_USERNAME' => gl_username,
'GL_REPOSITORY' => repository.gl_repository,
'GL_PROTOCOL' => GL_PROTOCOL,
'PWD' => repo_path,
'GIT_DIR' => repo_path
}
end
end
end
end
|
