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@@ -1,189 +1,189 b'' | |||||
1 | # hook.py - hook support for mercurial |
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1 | # hook.py - hook support for mercurial | |
2 | # |
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2 | # | |
3 | # Copyright 2007 Matt Mackall <mpm@selenic.com> |
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3 | # Copyright 2007 Matt Mackall <mpm@selenic.com> | |
4 | # |
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4 | # | |
5 | # This software may be used and distributed according to the terms of the |
|
5 | # This software may be used and distributed according to the terms of the | |
6 | # GNU General Public License version 2 or any later version. |
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6 | # GNU General Public License version 2 or any later version. | |
7 |
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7 | |||
8 | from i18n import _ |
|
8 | from i18n import _ | |
9 | import os, sys |
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9 | import os, sys | |
10 | import extensions, util |
|
10 | import extensions, util | |
11 |
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11 | |||
12 | def _pythonhook(ui, repo, name, hname, funcname, args, throw): |
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12 | def _pythonhook(ui, repo, name, hname, funcname, args, throw): | |
13 | '''call python hook. hook is callable object, looked up as |
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13 | '''call python hook. hook is callable object, looked up as | |
14 | name in python module. if callable returns "true", hook |
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14 | name in python module. if callable returns "true", hook | |
15 | fails, else passes. if hook raises exception, treated as |
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15 | fails, else passes. if hook raises exception, treated as | |
16 | hook failure. exception propagates if throw is "true". |
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16 | hook failure. exception propagates if throw is "true". | |
17 |
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17 | |||
18 | reason for "true" meaning "hook failed" is so that |
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18 | reason for "true" meaning "hook failed" is so that | |
19 | unmodified commands (e.g. mercurial.commands.update) can |
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19 | unmodified commands (e.g. mercurial.commands.update) can | |
20 | be run as hooks without wrappers to convert return values.''' |
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20 | be run as hooks without wrappers to convert return values.''' | |
21 |
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21 | |||
22 | ui.note(_("calling hook %s: %s\n") % (hname, funcname)) |
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22 | ui.note(_("calling hook %s: %s\n") % (hname, funcname)) | |
23 | obj = funcname |
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23 | obj = funcname | |
24 | if not util.safehasattr(obj, '__call__'): |
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24 | if not util.safehasattr(obj, '__call__'): | |
25 | d = funcname.rfind('.') |
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25 | d = funcname.rfind('.') | |
26 | if d == -1: |
|
26 | if d == -1: | |
27 | raise util.Abort(_('%s hook is invalid ("%s" not in ' |
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27 | raise util.Abort(_('%s hook is invalid ("%s" not in ' | |
28 | 'a module)') % (hname, funcname)) |
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28 | 'a module)') % (hname, funcname)) | |
29 | modname = funcname[:d] |
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29 | modname = funcname[:d] | |
30 | oldpaths = sys.path |
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30 | oldpaths = sys.path | |
31 | if util.mainfrozen(): |
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31 | if util.mainfrozen(): | |
32 | # binary installs require sys.path manipulation |
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32 | # binary installs require sys.path manipulation | |
33 | modpath, modfile = os.path.split(modname) |
|
33 | modpath, modfile = os.path.split(modname) | |
34 | if modpath and modfile: |
|
34 | if modpath and modfile: | |
35 | sys.path = sys.path[:] + [modpath] |
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35 | sys.path = sys.path[:] + [modpath] | |
36 | modname = modfile |
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36 | modname = modfile | |
37 | try: |
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37 | try: | |
38 | obj = __import__(modname) |
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38 | obj = __import__(modname) | |
39 | except ImportError: |
|
39 | except ImportError: | |
40 | e1 = sys.exc_type, sys.exc_value, sys.exc_traceback |
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40 | e1 = sys.exc_type, sys.exc_value, sys.exc_traceback | |
41 | try: |
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41 | try: | |
42 | # extensions are loaded with hgext_ prefix |
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42 | # extensions are loaded with hgext_ prefix | |
43 | obj = __import__("hgext_%s" % modname) |
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43 | obj = __import__("hgext_%s" % modname) | |
44 | except ImportError: |
|
44 | except ImportError: | |
45 | e2 = sys.exc_type, sys.exc_value, sys.exc_traceback |
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45 | e2 = sys.exc_type, sys.exc_value, sys.exc_traceback | |
46 | if ui.tracebackflag: |
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46 | if ui.tracebackflag: | |
47 | ui.warn(_('exception from first failed import attempt:\n')) |
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47 | ui.warn(_('exception from first failed import attempt:\n')) | |
48 | ui.traceback(e1) |
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48 | ui.traceback(e1) | |
49 | if ui.tracebackflag: |
|
49 | if ui.tracebackflag: | |
50 | ui.warn(_('exception from second failed import attempt:\n')) |
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50 | ui.warn(_('exception from second failed import attempt:\n')) | |
51 | ui.traceback(e2) |
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51 | ui.traceback(e2) | |
52 | raise util.Abort(_('%s hook is invalid ' |
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52 | raise util.Abort(_('%s hook is invalid ' | |
53 | '(import of "%s" failed)') % |
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53 | '(import of "%s" failed)') % | |
54 | (hname, modname)) |
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54 | (hname, modname)) | |
55 | sys.path = oldpaths |
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55 | sys.path = oldpaths | |
56 | try: |
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56 | try: | |
57 | for p in funcname.split('.')[1:]: |
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57 | for p in funcname.split('.')[1:]: | |
58 | obj = getattr(obj, p) |
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58 | obj = getattr(obj, p) | |
59 | except AttributeError: |
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59 | except AttributeError: | |
60 | raise util.Abort(_('%s hook is invalid ' |
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60 | raise util.Abort(_('%s hook is invalid ' | |
61 | '("%s" is not defined)') % |
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61 | '("%s" is not defined)') % | |
62 | (hname, funcname)) |
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62 | (hname, funcname)) | |
63 | if not util.safehasattr(obj, '__call__'): |
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63 | if not util.safehasattr(obj, '__call__'): | |
64 | raise util.Abort(_('%s hook is invalid ' |
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64 | raise util.Abort(_('%s hook is invalid ' | |
65 | '("%s" is not callable)') % |
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65 | '("%s" is not callable)') % | |
66 | (hname, funcname)) |
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66 | (hname, funcname)) | |
67 | try: |
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67 | try: | |
68 | try: |
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68 | try: | |
69 | # redirect IO descriptors to the ui descriptors so hooks |
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69 | # redirect IO descriptors to the ui descriptors so hooks | |
70 | # that write directly to these don't mess up the command |
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70 | # that write directly to these don't mess up the command | |
71 | # protocol when running through the command server |
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71 | # protocol when running through the command server | |
72 | old = sys.stdout, sys.stderr, sys.stdin |
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72 | old = sys.stdout, sys.stderr, sys.stdin | |
73 | sys.stdout, sys.stderr, sys.stdin = ui.fout, ui.ferr, ui.fin |
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73 | sys.stdout, sys.stderr, sys.stdin = ui.fout, ui.ferr, ui.fin | |
74 |
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74 | |||
75 | r = obj(ui=ui, repo=repo, hooktype=name, **args) |
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75 | r = obj(ui=ui, repo=repo, hooktype=name, **args) | |
76 | except KeyboardInterrupt: |
|
76 | except KeyboardInterrupt: | |
77 | raise |
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77 | raise | |
78 | except Exception, exc: |
|
78 | except Exception, exc: | |
79 | if isinstance(exc, util.Abort): |
|
79 | if isinstance(exc, util.Abort): | |
80 | ui.warn(_('error: %s hook failed: %s\n') % |
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80 | ui.warn(_('error: %s hook failed: %s\n') % | |
81 | (hname, exc.args[0])) |
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81 | (hname, exc.args[0])) | |
82 | else: |
|
82 | else: | |
83 | ui.warn(_('error: %s hook raised an exception: ' |
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83 | ui.warn(_('error: %s hook raised an exception: ' | |
84 | '%s\n') % (hname, exc)) |
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84 | '%s\n') % (hname, exc)) | |
85 | if throw: |
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85 | if throw: | |
86 | raise |
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86 | raise | |
87 | ui.traceback() |
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87 | ui.traceback() | |
88 | return True |
|
88 | return True | |
89 | finally: |
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89 | finally: | |
90 | sys.stdout, sys.stderr, sys.stdin = old |
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90 | sys.stdout, sys.stderr, sys.stdin = old | |
91 | if r: |
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91 | if r: | |
92 | if throw: |
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92 | if throw: | |
93 | raise util.Abort(_('%s hook failed') % hname) |
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93 | raise util.Abort(_('%s hook failed') % hname) | |
94 | ui.warn(_('warning: %s hook failed\n') % hname) |
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94 | ui.warn(_('warning: %s hook failed\n') % hname) | |
95 | return r |
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95 | return r | |
96 |
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96 | |||
97 | def _exthook(ui, repo, name, cmd, args, throw): |
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97 | def _exthook(ui, repo, name, cmd, args, throw): | |
98 | ui.note(_("running hook %s: %s\n") % (name, cmd)) |
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98 | ui.note(_("running hook %s: %s\n") % (name, cmd)) | |
99 |
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99 | |||
100 | env = {} |
|
100 | env = {} | |
101 | for k, v in args.iteritems(): |
|
101 | for k, v in args.iteritems(): | |
102 | if util.safehasattr(v, '__call__'): |
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102 | if util.safehasattr(v, '__call__'): | |
103 | v = v() |
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103 | v = v() | |
104 | if isinstance(v, dict): |
|
104 | if isinstance(v, dict): | |
105 | # make the dictionary element order stable across Python |
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105 | # make the dictionary element order stable across Python | |
106 | # implementations |
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106 | # implementations | |
107 | v = ('{' + |
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107 | v = ('{' + | |
108 | ', '.join('%r: %r' % i for i in sorted(v.iteritems())) + |
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108 | ', '.join('%r: %r' % i for i in sorted(v.iteritems())) + | |
109 | '}') |
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109 | '}') | |
110 | env['HG_' + k.upper()] = v |
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110 | env['HG_' + k.upper()] = v | |
111 |
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111 | |||
112 | if repo: |
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112 | if repo: | |
113 | cwd = repo.root |
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113 | cwd = repo.root | |
114 | else: |
|
114 | else: | |
115 | cwd = os.getcwd() |
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115 | cwd = os.getcwd() | |
116 | if 'HG_URL' in env and env['HG_URL'].startswith('remote:http'): |
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116 | if 'HG_URL' in env and env['HG_URL'].startswith('remote:http'): | |
117 | r = util.system(cmd, environ=env, cwd=cwd, out=ui) |
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117 | r = util.system(cmd, environ=env, cwd=cwd, out=ui) | |
118 | else: |
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118 | else: | |
119 | r = util.system(cmd, environ=env, cwd=cwd, out=ui.fout) |
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119 | r = util.system(cmd, environ=env, cwd=cwd, out=ui.fout) | |
120 | if r: |
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120 | if r: | |
121 | desc, r = util.explainexit(r) |
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121 | desc, r = util.explainexit(r) | |
122 | if throw: |
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122 | if throw: | |
123 | raise util.Abort(_('%s hook %s') % (name, desc)) |
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123 | raise util.Abort(_('%s hook %s') % (name, desc)) | |
124 | ui.warn(_('warning: %s hook %s\n') % (name, desc)) |
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124 | ui.warn(_('warning: %s hook %s\n') % (name, desc)) | |
125 | return r |
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125 | return r | |
126 |
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126 | |||
127 | def _allhooks(ui): |
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127 | def _allhooks(ui): | |
128 | hooks = [] |
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128 | hooks = [] | |
129 | for name, cmd in ui.configitems('hooks'): |
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129 | for name, cmd in ui.configitems('hooks'): | |
130 | if not name.startswith('priority'): |
|
130 | if not name.startswith('priority'): | |
131 | priority = ui.configint('hooks', 'priority.%s' % name, 0) |
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131 | priority = ui.configint('hooks', 'priority.%s' % name, 0) | |
132 | hooks.append((-priority, len(hooks), name, cmd)) |
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132 | hooks.append((-priority, len(hooks), name, cmd)) | |
133 | return [(k, v) for p, o, k, v in sorted(hooks)] |
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133 | return [(k, v) for p, o, k, v in sorted(hooks)] | |
134 |
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134 | |||
135 | _redirect = False |
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135 | _redirect = False | |
136 | def redirect(state): |
|
136 | def redirect(state): | |
137 | global _redirect |
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137 | global _redirect | |
138 | _redirect = state |
|
138 | _redirect = state | |
139 |
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139 | |||
140 | def hook(ui, repo, name, throw=False, **args): |
|
140 | def hook(ui, repo, name, throw=False, **args): | |
141 | if not ui.callhooks: |
|
141 | if not ui.callhooks: | |
142 | return False |
|
142 | return False | |
143 |
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143 | |||
144 | r = False |
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144 | r = False | |
145 | oldstdout = -1 |
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145 | oldstdout = -1 | |
146 |
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146 | |||
147 | try: |
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147 | try: | |
148 | for hname, cmd in _allhooks(ui): |
|
148 | for hname, cmd in _allhooks(ui): | |
149 | if hname.split('.')[0] != name or not cmd: |
|
149 | if hname.split('.')[0] != name or not cmd: | |
150 | continue |
|
150 | continue | |
151 |
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151 | |||
152 | if oldstdout == -1 and _redirect: |
|
152 | if oldstdout == -1 and _redirect: | |
153 | try: |
|
153 | try: | |
154 | stdoutno = sys.__stdout__.fileno() |
|
154 | stdoutno = sys.__stdout__.fileno() | |
155 | stderrno = sys.__stderr__.fileno() |
|
155 | stderrno = sys.__stderr__.fileno() | |
156 | # temporarily redirect stdout to stderr, if possible |
|
156 | # temporarily redirect stdout to stderr, if possible | |
157 | if stdoutno >= 0 and stderrno >= 0: |
|
157 | if stdoutno >= 0 and stderrno >= 0: | |
158 | sys.__stdout__.flush() |
|
158 | sys.__stdout__.flush() | |
159 | oldstdout = os.dup(stdoutno) |
|
159 | oldstdout = os.dup(stdoutno) | |
160 | os.dup2(stderrno, stdoutno) |
|
160 | os.dup2(stderrno, stdoutno) | |
161 | except AttributeError: |
|
161 | except (OSError, AttributeError): | |
162 | # __stdout__/__stderr__ has no fileno(), not a real file |
|
162 | # files seem to be bogus, give up on redirecting (WSGI, etc) | |
163 | pass |
|
163 | pass | |
164 |
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164 | |||
165 | if util.safehasattr(cmd, '__call__'): |
|
165 | if util.safehasattr(cmd, '__call__'): | |
166 | r = _pythonhook(ui, repo, name, hname, cmd, args, throw) or r |
|
166 | r = _pythonhook(ui, repo, name, hname, cmd, args, throw) or r | |
167 | elif cmd.startswith('python:'): |
|
167 | elif cmd.startswith('python:'): | |
168 | if cmd.count(':') >= 2: |
|
168 | if cmd.count(':') >= 2: | |
169 | path, cmd = cmd[7:].rsplit(':', 1) |
|
169 | path, cmd = cmd[7:].rsplit(':', 1) | |
170 | path = util.expandpath(path) |
|
170 | path = util.expandpath(path) | |
171 | if repo: |
|
171 | if repo: | |
172 | path = os.path.join(repo.root, path) |
|
172 | path = os.path.join(repo.root, path) | |
173 | try: |
|
173 | try: | |
174 | mod = extensions.loadpath(path, 'hghook.%s' % hname) |
|
174 | mod = extensions.loadpath(path, 'hghook.%s' % hname) | |
175 | except Exception: |
|
175 | except Exception: | |
176 | ui.write(_("loading %s hook failed:\n") % hname) |
|
176 | ui.write(_("loading %s hook failed:\n") % hname) | |
177 | raise |
|
177 | raise | |
178 | hookfn = getattr(mod, cmd) |
|
178 | hookfn = getattr(mod, cmd) | |
179 | else: |
|
179 | else: | |
180 | hookfn = cmd[7:].strip() |
|
180 | hookfn = cmd[7:].strip() | |
181 | r = _pythonhook(ui, repo, name, hname, hookfn, args, throw) or r |
|
181 | r = _pythonhook(ui, repo, name, hname, hookfn, args, throw) or r | |
182 | else: |
|
182 | else: | |
183 | r = _exthook(ui, repo, hname, cmd, args, throw) or r |
|
183 | r = _exthook(ui, repo, hname, cmd, args, throw) or r | |
184 | finally: |
|
184 | finally: | |
185 | if _redirect and oldstdout >= 0: |
|
185 | if _redirect and oldstdout >= 0: | |
186 | os.dup2(oldstdout, stdoutno) |
|
186 | os.dup2(oldstdout, stdoutno) | |
187 | os.close(oldstdout) |
|
187 | os.close(oldstdout) | |
188 |
|
188 | |||
189 | return r |
|
189 | return r |
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