copy: Implement recursive copying if src is a directory.
If src param to copy is a directory, all files under it are collected and pushed one by one to target. Source dir path handled in a way simalar to rsync: if it ends with slash, only inside contents of directory are copied to destination, otherwise the dir itself is copied (with all contents of course). Original idea and implementation by https://github.com/ansible/ansible/pull/1809 . Rewritten to address review comments and simplify/correct logic.
This commit is contained in:
Paul Sokolovsky
parent
ebbf845e09
commit
b3b4f9885f
2 changed files with 132 additions and 69 deletions
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@ -59,6 +59,10 @@ class ActionModule(object):
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result=dict(failed=True, msg="src and content are mutually exclusive")
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return ReturnData(conn=conn, result=result)
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source_trailing_slash = False
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if source:
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source_trailing_slash = source.endswith("/")
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# if we have first_available_file in our vars
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# look up the files and use the first one we find as src
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if 'first_available_file' in inject:
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@ -95,86 +99,133 @@ class ActionModule(object):
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source = utils.path_dwim(self.runner.basedir, source)
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local_md5 = utils.md5(source)
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if local_md5 is None:
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result=dict(failed=True, msg="could not find src=%s" % source)
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return ReturnData(conn=conn, result=result)
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if dest.endswith("/"):
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base = os.path.basename(source)
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dest = os.path.join(dest, base)
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remote_md5 = self.runner._remote_md5(conn, tmp, dest)
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if remote_md5 == '3':
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# Destination is a directory
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if content is not None:
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os.remove(tmp_content)
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result = dict(failed=True, msg="can not use content with a dir as dest")
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return ReturnData(conn=conn, result=result)
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dest = os.path.join(dest, os.path.basename(source))
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remote_md5 = self.runner._remote_md5(conn, tmp, dest)
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# remote_md5 == '1' would mean that the file does not exist.
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if remote_md5 != '1' and not force:
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return ReturnData(conn=conn, result=dict(changed=False))
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exec_rc = None
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if local_md5 != remote_md5:
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if self.runner.diff and not raw:
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diff = self._get_diff_data(conn, tmp, inject, dest, source)
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source_files = []
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if os.path.isdir(source):
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# Implement rsync-like behavior: if source is "dir/" , only
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# inside its contents will be copied to destination. Otherwise
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# if it's "dir", dir itself will be copied to destination.
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if source_trailing_slash:
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sz = len(source) + 1
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else:
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diff = {}
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sz = len(source.rsplit('/', 1)[0]) + 1
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for base_path, sub_folders, files in os.walk(source):
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for file in files:
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full_path = os.path.join(base_path, file)
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rel_path = full_path[sz:]
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source_files.append((full_path, rel_path))
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else:
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source_files.append((source, os.path.basename(source)))
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if self.runner.noop_on_check(inject):
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changed = False
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diffs = []
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module_result = None
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for source_full, source_rel in source_files:
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# We need to get a new tmp path for each file, otherwise the copy module deletes the folder.
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tmp = self.runner._make_tmp_path(conn)
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local_md5 = utils.md5(source_full)
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if local_md5 is None:
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result=dict(failed=True, msg="could not find src=%s" % source_full)
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return ReturnData(conn=conn, result=result)
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# This is kind of optimization - if user told us destination is
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# dir, do path manipulation right away, otherwise we still check
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# for dest being a dir via remote call below.
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if dest.endswith("/"):
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dest_file = os.path.join(dest, source_rel)
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else:
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dest_file = dest
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remote_md5 = self.runner._remote_md5(conn, tmp, dest_file)
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if remote_md5 == '3':
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# Destination is a directory
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if content is not None:
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os.remove(tmp_content)
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return ReturnData(conn=conn, result=dict(changed=True), diff=diff)
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result = dict(failed=True, msg="can not use content with a dir as dest")
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return ReturnData(conn=conn, result=result)
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dest_file = os.path.join(dest, source_rel)
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remote_md5 = self.runner._remote_md5(conn, tmp, dest_file)
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# remote_md5 == '1' would mean that the file does not exist.
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if remote_md5 != '1' and not force:
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continue
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exec_rc = None
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if local_md5 != remote_md5:
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# Assume we either really change file or error out
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changed = True
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if self.runner.diff and not raw:
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diff = self._get_diff_data(conn, tmp, inject, dest_file, source_full)
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else:
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diff = {}
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if self.runner.noop_on_check(inject):
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if content is not None:
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os.remove(tmp_content)
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diffs.append(diff)
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continue
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# transfer the file to a remote tmp location
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tmp_src = tmp + 'source'
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# transfer the file to a remote tmp location
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tmp_src = tmp + 'source'
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if not raw:
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conn.put_file(source_full, tmp_src)
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else:
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conn.put_file(source_full, dest_file)
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if content is not None:
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os.remove(tmp_content)
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# fix file permissions when the copy is done as a different user
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if self.runner.sudo and self.runner.sudo_user != 'root' and not raw:
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self.runner._low_level_exec_command(conn, "chmod a+r %s" % tmp_src, tmp)
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if raw:
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continue
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# run the copy module
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if raw:
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# don't send down raw=no
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module_args.pop('raw')
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module_args = "%s src=%s original_basename=%s" % (module_args, pipes.quote(tmp_src), pipes.quote(source_rel))
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module_return = self.runner._execute_module(conn, tmp, 'copy', module_args, inject=inject, complex_args=complex_args)
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if not raw:
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conn.put_file(source, tmp_src)
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else:
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conn.put_file(source, dest)
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# no need to transfer the file, already correct md5, but still need to call
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# the file module in case we want to change attributes
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if content is not None:
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os.remove(tmp_content)
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if content is not None:
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os.remove(tmp_content)
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# fix file permissions when the copy is done as a different user
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if self.runner.sudo and self.runner.sudo_user != 'root' and not raw:
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self.runner._low_level_exec_command(conn, "chmod a+r %s" % tmp_src, tmp)
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if raw:
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continue
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if raw:
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return ReturnData(conn=conn, result=dict(dest=dest, changed=True))
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tmp_src = tmp + source_rel
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if raw:
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# don't send down raw=no
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module_args.pop('raw')
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module_args = "%s src=%s" % (module_args, pipes.quote(tmp_src))
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if self.runner.noop_on_check(inject):
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module_args = "%s CHECKMODE=True" % module_args
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module_return = self.runner._execute_module(conn, tmp, 'file', module_args, inject=inject, complex_args=complex_args)
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# run the copy module
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if raw:
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# don't send down raw=no
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module_args.pop('raw')
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module_args = "%s src=%s original_basename=%s" % (module_args, pipes.quote(tmp_src), pipes.quote(os.path.basename(source)))
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return self.runner._execute_module(conn, tmp, 'copy', module_args, inject=inject, complex_args=complex_args)
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module_result = module_return.result
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if module_result.get('failed') == True:
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return module_return
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if module_result.get('changed') == True:
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changed = True
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# TODO: Support detailed status/diff for multiple files
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if len(source_files) == 1:
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result = module_result
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else:
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# no need to transfer the file, already correct md5, but still need to call
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# the file module in case we want to change attributes
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if content is not None:
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os.remove(tmp_content)
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if raw:
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return ReturnData(conn=conn, result=dict(dest=dest, changed=False))
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tmp_src = tmp + os.path.basename(source)
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if raw:
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# don't send down raw=no
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module_args.pop('raw')
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module_args = "%s src=%s" % (module_args, pipes.quote(tmp_src))
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if self.runner.noop_on_check(inject):
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module_args = "%s CHECKMODE=True" % module_args
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return self.runner._execute_module(conn, tmp, 'file', module_args, inject=inject, complex_args=complex_args)
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result = dict(dest=dest, src=source, changed=changed)
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if len(diffs) == 1:
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return ReturnData(conn=conn, result=result, diff=diffs[0])
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else:
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return ReturnData(conn=conn, result=result)
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def _get_diff_data(self, conn, tmp, inject, destination, source):
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peek_result = self.runner._execute_module(conn, tmp, 'file', "path=%s diff_peek=1" % destination, inject=inject, persist_files=True)
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@ -31,6 +31,10 @@ options:
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src:
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description:
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- Local path to a file to copy to the remote server; can be absolute or relative.
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If path is a directory, it is copied recursively. In this case, if path ends
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with "/", only inside contents of that directory are copied to destination.
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Otherwise, if it does not end with "/", the directory itself with all contents
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is copied. This behavior is similar to Rsync.
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required: false
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default: null
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aliases: []
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@ -42,7 +46,8 @@ options:
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default: null
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dest:
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description:
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- Remote absolute path where the file should be copied to.
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- Remote absolute path where the file should be copied to. If src is a directory,
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this must be a directory too.
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required: true
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default: null
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backup:
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@ -76,8 +81,8 @@ options:
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required: false
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author: Michael DeHaan
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notes:
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- The "copy" module can't be used to recursively copy directory structures to the target machine. Please see the
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"Delegation" section of the Advanced Playbooks documentation for a better approach to recursive copies.
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- The "copy" module recursively copy facility does not scale to lots (>hundreds) of files.
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For alternative, see "Delegation" section of the Advanced Playbooks documentation.
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'''
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EXAMPLES = '''
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@ -122,6 +127,13 @@ def main():
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md5sum_src = module.md5(src)
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md5sum_dest = None
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# Special handling for recursive copy - create intermediate dirs
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if original_basename and dest.endswith("/"):
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dest = os.path.join(dest, original_basename)
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dirname = os.path.dirname(dest)
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if not os.path.exists(dirname):
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os.makedirs(dirname)
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if os.path.exists(dest):
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if not force:
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module.exit_json(msg="file already exists", src=src, dest=dest, changed=False)
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