diff options
Diffstat (limited to 'tools/process-templates.py')
| -rwxr-xr-x | tools/process-templates.py | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/tools/process-templates.py b/tools/process-templates.py index 9a06812b..1c8c4ba6 100755 --- a/tools/process-templates.py +++ b/tools/process-templates.py @@ -14,10 +14,13 @@ import argparse import jinja2 import os +import shutil import six import sys import yaml +__tht_root_dir = os.path.dirname(os.path.dirname(__file__)) + def parse_opts(argv): parser = argparse.ArgumentParser( @@ -33,6 +36,9 @@ def parse_opts(argv): action='store_true', help="""Enable safe mode (do not overwrite files).""", default=False) + parser.add_argument('-o', '--output-dir', metavar='OUTPUT_DIR', + help="""Output dir for all the templates""", + default='') opts = parser.parse_args(argv[1:]) return opts @@ -47,9 +53,14 @@ def _j2_render_to_file(j2_template, j2_data, outfile_name=None, print('ERROR: path already exists for file: %s' % outfile_name) sys.exit(1) + # Search for templates relative to the current template path first + template_base = os.path.dirname(yaml_f) + j2_loader = jinja2.loaders.FileSystemLoader([template_base, __tht_root_dir]) + try: # Render the j2 template - template = jinja2.Environment().from_string(j2_template) + template = jinja2.Environment(loader=j2_loader).from_string( + j2_template) r_template = template.render(**j2_data) except jinja2.exceptions.TemplateError as ex: error_msg = ("Error rendering template %s : %s" @@ -60,7 +71,7 @@ def _j2_render_to_file(j2_template, j2_data, outfile_name=None, out_f.write(r_template) -def process_templates(template_path, role_data_path, overwrite): +def process_templates(template_path, role_data_path, output_dir, overwrite): with open(role_data_path) as role_data_file: role_data = yaml.safe_load(role_data_file) @@ -69,6 +80,11 @@ def process_templates(template_path, role_data_path, overwrite): with open(j2_excludes_path) as role_data_file: j2_excludes = yaml.safe_load(role_data_file) + if output_dir and not os.path.isdir(output_dir): + if os.path.exists(output_dir): + raise RuntimeError('Output dir %s is not a directory' % output_dir) + os.mkdir(output_dir) + role_names = [r.get('name') for r in role_data] r_map = {} for r in role_data: @@ -78,6 +94,29 @@ def process_templates(template_path, role_data_path, overwrite): if os.path.isdir(template_path): for subdir, dirs, files in os.walk(template_path): + + # NOTE(flaper87): Ignore hidden dirs as we don't + # generate templates for those. + # Note the slice assigment for `dirs` is necessary + # because we need to modify the *elements* in the + # dirs list rather than the reference to the list. + # This way we'll make sure os.walk will iterate over + # the shrunk list. os.walk doesn't have an API for + # filtering dirs at this point. + dirs[:] = [d for d in dirs if not d[0] == '.'] + files = [f for f in files if not f[0] == '.'] + + # NOTE(flaper87): We could have used shutil.copytree + # but it requires the dst dir to not be present. This + # approach is safer as it doesn't require us to delete + # the output_dir in advance and it allows for running + # the command multiple times with the same output_dir. + out_dir = subdir + if output_dir: + out_dir = os.path.join(output_dir, subdir) + if not os.path.exists(out_dir): + os.mkdir(out_dir) + for f in files: file_path = os.path.join(subdir, f) # We do two templating passes here: @@ -101,7 +140,7 @@ def process_templates(template_path, role_data_path, overwrite): [role.lower(), os.path.basename(f).replace('.role.j2.yaml', '.yaml')]) - out_f_path = os.path.join(subdir, out_f) + out_f_path = os.path.join(out_dir, out_f) if not (out_f_path in excl_templates): _j2_render_to_file(template_data, j2_data, out_f_path, overwrite) @@ -112,9 +151,12 @@ def process_templates(template_path, role_data_path, overwrite): with open(file_path) as j2_template: template_data = j2_template.read() j2_data = {'roles': role_data} - out_f = file_path.replace('.j2.yaml', '.yaml') - _j2_render_to_file(template_data, j2_data, out_f, + out_f = os.path.basename(f).replace('.j2.yaml', '.yaml') + out_f_path = os.path.join(out_dir, out_f) + _j2_render_to_file(template_data, j2_data, out_f_path, overwrite) + elif output_dir: + shutil.copy(os.path.join(subdir, f), out_dir) else: print('Unexpected argument %s' % template_path) @@ -123,4 +165,4 @@ opts = parse_opts(sys.argv) role_data_path = os.path.join(opts.base_path, opts.roles_data) -process_templates(opts.base_path, role_data_path, (not opts.safe)) +process_templates(opts.base_path, role_data_path, opts.output_dir, (not opts.safe)) |