Decompress mysql dumps on the fly using python subprocess during an import to simplify operation
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1 changed files with 40 additions and 48 deletions
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@ -111,6 +111,7 @@ import ConfigParser
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import os
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import pipes
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import stat
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import subprocess
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try:
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import MySQLdb
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except ImportError:
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@ -166,56 +167,47 @@ def db_import(module, host, user, password, db_name, target, all_databases, port
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if not all_databases:
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cmd += " -D %s" % pipes.quote(db_name)
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if os.path.splitext(target)[-1] == '.gz':
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gzip_path = module.get_bin_path('gzip')
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if not gzip_path:
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module.fail_json(msg="gzip command not found")
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#gzip -d file (uncompress)
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rc, stdout, stderr = module.run_command('%s -d %s' % (gzip_path, target))
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if rc != 0:
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return rc, stdout, stderr
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#Import sql
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cmd += " < %s" % pipes.quote(os.path.splitext(target)[0])
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try:
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rc, stdout, stderr = module.run_command(cmd, use_unsafe_shell=True)
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if rc != 0:
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return rc, stdout, stderr
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finally:
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#gzip file back up
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module.run_command('%s %s' % (gzip_path, os.path.splitext(target)[0]))
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zcat_path = module.get_bin_path('zcat')
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if not zcat_path:
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module.fail_json(msg="zcat command not found")
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p1 = subprocess.Popen([zcat_path, target], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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p2 = subprocess.Popen(cmd.split(' '), stdin=p1.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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(stdout2, stderr2) = p2.communicate()
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p1.stdout.close()
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p1.wait()
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if p1.returncode != 0:
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stderr1 = p1.stderr.read()
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return p1.returncode, '', stderr1
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else:
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return p2.returncode, stdout2, stderr2
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elif os.path.splitext(target)[-1] == '.bz2':
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bzip2_path = module.get_bin_path('bzip2')
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if not bzip2_path:
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module.fail_json(msg="bzip2 command not found")
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#bzip2 -d file (uncompress)
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rc, stdout, stderr = module.run_command('%s -d %s' % (bzip2_path, target))
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if rc != 0:
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return rc, stdout, stderr
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#Import sql
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cmd += " < %s" % pipes.quote(os.path.splitext(target)[0])
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try:
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rc, stdout, stderr = module.run_command(cmd, use_unsafe_shell=True)
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if rc != 0:
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return rc, stdout, stderr
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finally:
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#bzip2 file back up
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rc, stdout, stderr = module.run_command('%s %s' % (bzip2_path, os.path.splitext(target)[0]))
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bzcat_path = module.get_bin_path('bzcat')
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if not bzcat_path:
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module.fail_json(msg="bzcat command not found")
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p1 = subprocess.Popen([bzcat_path, target], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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p2 = subprocess.Popen(cmd.split(' '), stdin=p1.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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(stdout2, stderr2) = p2.communicate()
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p1.stdout.close()
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p1.wait()
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if p1.returncode != 0:
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stderr1 = p1.stderr.read()
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return p1.returncode, '', stderr1
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else:
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return p2.returncode, stdout2, stderr2
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elif os.path.splitext(target)[-1] == '.xz':
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xz_path = module.get_bin_path('xz')
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if not xz_path:
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module.fail_json(msg="xz command not found")
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#xz -d file (uncompress)
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rc, stdout, stderr = module.run_command('%s -d %s' % (xz_path, target))
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if rc != 0:
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return rc, stdout, stderr
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#Import sql
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cmd += " < %s" % pipes.quote(os.path.splitext(target)[0])
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try:
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rc, stdout, stderr = module.run_command(cmd, use_unsafe_shell=True)
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if rc != 0:
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return rc, stdout, stderr
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finally:
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#xz file back up
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rc, stdout, stderr = module.run_command('%s %s' % (xz_path, os.path.splitext(target)[0]))
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xzcat_path = module.get_bin_path('xzcat')
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if not xzcat_path:
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module.fail_json(msg="xzcat command not found")
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p1 = subprocess.Popen([xzcat_path, target], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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p2 = subprocess.Popen(cmd.split(' '), stdin=p1.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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(stdout2, stderr2) = p2.communicate()
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p1.stdout.close()
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p1.wait()
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if p1.returncode != 0:
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stderr1 = p1.stderr.read()
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return p1.returncode, '', stderr1
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else:
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return p2.returncode, stdout2, stderr2
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else:
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cmd += " < %s" % pipes.quote(target)
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rc, stdout, stderr = module.run_command(cmd, use_unsafe_shell=True)
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