123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129 |
- --[[
- Copyright (c) 2019, Vsevolod Stakhov <vsevolod@highsecure.ru>
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- ]]--
-
- local argparse = require "argparse"
-
-
- -- Define command line options
- local parser = argparse()
- :name "rspamadm template"
- :description "Apply jinja templates for strings/files"
- :help_description_margin(30)
- parser:argument "file"
- :description "File to process"
- :argname "<file>"
- :args "*"
-
- parser:flag "-n --no-vars"
- :description "Don't add Rspamd internal variables"
- parser:option "-e --env"
- :description "Load additional environment vars from specific file (name=value)"
- :argname "<filename>"
- :count "*"
- parser:option "-l --lua-env"
- :description "Load additional environment vars from specific file (lua source)"
- :argname "<filename>"
- :count "*"
- parser:mutex(
- parser:option "-s --suffix"
- :description "Store files with the new suffix"
- :argname "<suffix>",
- parser:flag "-i --inplace"
- :description "Replace input file(s)"
- )
-
- local lua_util = require "lua_util"
-
- local function set_env(opts, env)
- if opts.env then
- for _,fname in ipairs(opts.env) do
- for kv in assert(io.open(fname)):lines() do
- if not kv:match('%s*#.*') then
- local k,v = kv:match('([^=%s]+)%s*=%s*(.+)')
-
- if k and v then
- env[k] = v
- else
- io.write(string.format('invalid env line in %s: %s\n', fname, kv))
- end
- end
- end
- end
- end
-
- if opts.lua_env then
- for _,fname in ipairs(opts.env) do
- local ret,res_or_err = pcall(loadfile(fname))
-
- if not ret then
- io.write(string.format('cannot load %s: %s\n', fname, res_or_err))
- else
- if type(res_or_err) == 'table' then
- for k,v in pairs(res_or_err) do
- env[k] = lua_util.deepcopy(v)
- end
- else
- io.write(string.format('cannot load %s: not a table\n', fname))
- end
- end
- end
- end
- end
-
- local function read_file(file)
- local content
- if file == '-' then
- content = io.read("*all")
- else
- local f = assert(io.open(file, "rb"))
- content = f:read("*all")
- f:close()
- end
- return content
- end
-
- local function handler(args)
- local opts = parser:parse(args)
- local env = {}
- set_env(opts, env)
-
- if not opts.file or #opts.file == 0 then opts.file = {'-'} end
- for _,fname in ipairs(opts.file) do
- local content = read_file(fname)
- local res = lua_util.jinja_template(content, env, opts.no_vars)
-
- if opts.inplace then
- local nfile = string.format('%s.new', fname)
- local out = assert(io.open(nfile, 'w'))
- out:write(content)
- out:close()
- os.rename(nfile, fname)
- elseif opts.suffix then
- local nfile = string.format('%s.%s', opts.suffix)
- local out = assert(io.open(nfile, 'w'))
- out:write(content)
- out:close()
- else
- io.write(res)
- end
- end
- end
-
- return {
- handler = handler,
- description = parser._description,
- name = 'template'
- }
|