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3a4eb2c7 JS |
1 | #!/usr/bin/python3 |
2 | ||
3 | import os | |
4 | ||
1ed8ca9f JS |
5 | import logging |
6 | ||
7 | logger = logging.getLogger("nitsi.recipe") | |
8 | ||
3a4eb2c7 JS |
9 | |
10 | ||
11 | class RecipeExeption(Exception): | |
12 | pass | |
13 | ||
14 | ||
15 | ||
16 | # Should read the test, check if the syntax are valid | |
17 | # and return tuples with the ( host, command ) structure | |
18 | class recipe(): | |
19 | def __init__(self, path, circle=[]): | |
3a4eb2c7 | 20 | self.recipe_file = path |
1ed8ca9f | 21 | self.log = logger.getChild(os.path.basename(self.recipe_file)) |
3a4eb2c7 JS |
22 | self.path = os.path.dirname(self.recipe_file) |
23 | self.log.debug("Path of recipe is: {}".format(self.recipe_file)) | |
24 | self._recipe = None | |
25 | self._machines = None | |
26 | ||
27 | self.in_recursion = True | |
28 | if len(circle) == 0: | |
29 | self.in_recursion = False | |
30 | ||
31 | self.circle = circle | |
32 | self.log.debug(circle) | |
33 | self.log.debug(self.circle) | |
34 | ||
35 | if not os.path.isfile(self.recipe_file): | |
36 | self.log.error("No such file: {}".format(self.recipe_file)) | |
37 | ||
38 | try: | |
39 | with open(self.recipe_file) as fobj: | |
40 | self.raw_recipe = fobj.readlines() | |
41 | except FileNotFoundError as error: | |
42 | self.log.error("No such file: {}".format(vm_xml_file)) | |
43 | ||
44 | @property | |
45 | def recipe(self): | |
46 | if not self._recipe: | |
47 | self.parse() | |
48 | ||
49 | return self._recipe | |
50 | ||
51 | @property | |
52 | def machines(self): | |
53 | if not self._machines: | |
54 | self._machines = [] | |
55 | for line in self._recipe: | |
56 | if line[0] != "all" and line[0] not in self._machines: | |
57 | self._machines.append(line[0]) | |
58 | ||
59 | return self._machines | |
60 | ||
61 | def parse(self): | |
62 | self._recipe = [] | |
63 | i = 1 | |
64 | for line in self.raw_recipe: | |
65 | raw_line = line.split(":") | |
66 | if len(raw_line) < 2: | |
67 | self.log.error("Error parsing the recipe in line {}".format(i)) | |
68 | raise RecipeExeption | |
69 | cmd = raw_line[1].strip() | |
70 | raw_line = raw_line[0].strip().split(" ") | |
71 | if len(raw_line) == 0: | |
72 | self.log.error("Failed to parse the recipe in line {}".format(i)) | |
73 | raise RecipeExeption | |
74 | ||
75 | if raw_line[0].strip() == "": | |
76 | self.log.error("Failed to parse the recipe in line {}".format(i)) | |
77 | raise RecipeExeption | |
78 | ||
79 | machine = raw_line[0].strip() | |
80 | ||
81 | if len(raw_line) == 2: | |
82 | extra = raw_line[1].strip() | |
83 | else: | |
84 | extra = "" | |
85 | ||
86 | # We could get a machine here or a include statement | |
87 | if machine == "include": | |
88 | path = cmd.strip() | |
89 | path = os.path.normpath(self.path + "/" + path) | |
90 | path = path + "/recipe" | |
91 | if path in self.circle: | |
92 | self.log.error("Detect import loop!") | |
93 | raise RecipeExeption | |
94 | self.circle.append(path) | |
95 | recipe_to_include = recipe(path, circle=self.circle) | |
96 | ||
97 | if machine == "include": | |
98 | self._recipe.extend(recipe_to_include.recipe) | |
99 | else: | |
100 | # Support also something like 'alice,bob: echo' | |
101 | machines = machine.split(",") | |
102 | for machine in machines: | |
103 | self._recipe.append((machine.strip(), extra.strip(), cmd.strip())) | |
104 | i = i + 1 | |
105 | ||
106 | if not self.in_recursion: | |
107 | tmp_recipe = [] | |
108 | for line in self._recipe: | |
109 | if line[0] != "all": | |
110 | tmp_recipe.append(line) | |
111 | else: | |
112 | for machine in self.machines: | |
113 | tmp_recipe.append((machine.strip(), line[1], line[2])) | |
114 | ||
115 | self._recipe = tmp_recipe |