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@@ -1,197 +1,202 b'' | |||||
1 | """Shell mode for IPython. |
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1 | """Shell mode for IPython. | |
2 |
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2 | |||
3 | Start ipython in shell mode by invoking "ipython -p sh" |
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3 | Start ipython in shell mode by invoking "ipython -p sh" | |
4 |
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4 | |||
5 | (the old version, "ipython -p pysh" still works but this is the more "modern" |
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5 | (the old version, "ipython -p pysh" still works but this is the more "modern" | |
6 | shell mode and is recommended for users who don't care about pysh-mode |
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6 | shell mode and is recommended for users who don't care about pysh-mode | |
7 | compatibility) |
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7 | compatibility) | |
8 | """ |
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8 | """ | |
9 |
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9 | |||
10 | from IPython import ipapi |
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10 | from IPython import ipapi | |
11 | import os,textwrap |
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11 | import os,textwrap | |
12 |
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12 | |||
13 | # The import below effectively obsoletes your old-style ipythonrc[.ini], |
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13 | # The import below effectively obsoletes your old-style ipythonrc[.ini], | |
14 | # so consider yourself warned! |
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14 | # so consider yourself warned! | |
15 |
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15 | |||
16 | import ipy_defaults |
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16 | import ipy_defaults | |
17 |
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17 | |||
18 | def main(): |
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18 | def main(): | |
19 | ip = ipapi.get() |
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19 | ip = ipapi.get() | |
20 | o = ip.options |
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20 | o = ip.options | |
21 | # autocall to "full" mode (smart mode is default, I like full mode) |
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21 | # autocall to "full" mode (smart mode is default, I like full mode) | |
22 |
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22 | |||
23 | o.autocall = 2 |
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23 | o.autocall = 2 | |
24 |
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24 | |||
25 | # Jason Orendorff's path class is handy to have in user namespace |
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25 | # Jason Orendorff's path class is handy to have in user namespace | |
26 | # if you are doing shell-like stuff |
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26 | # if you are doing shell-like stuff | |
27 | try: |
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27 | try: | |
28 | ip.ex("from path import path" ) |
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28 | ip.ex("from path import path" ) | |
29 | except ImportError: |
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29 | except ImportError: | |
30 | pass |
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30 | pass | |
31 |
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31 | |||
32 | # beefed up %env is handy in shell mode |
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32 | # beefed up %env is handy in shell mode | |
33 | import envpersist |
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33 | import envpersist | |
34 | import ipy_which |
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34 | import ipy_which | |
35 | import ipy_stock_completers |
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35 | import ipy_stock_completers | |
36 | import ipy_rehashdir |
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36 | import ipy_rehashdir | |
37 |
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37 | |||
38 |
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38 | |||
39 | ip.ex('import os') |
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39 | ip.ex('import os') | |
40 | ip.ex("def up(): os.chdir('..')") |
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40 | ip.ex("def up(): os.chdir('..')") | |
41 |
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41 | |||
42 | # Nice prompt |
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42 | # Nice prompt | |
43 |
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43 | |||
44 | o.prompt_in1= r'\C_LightBlue[\C_LightCyan\Y2\C_LightBlue]\C_Green|\#> ' |
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44 | o.prompt_in1= r'\C_LightBlue[\C_LightCyan\Y2\C_LightBlue]\C_Green|\#> ' | |
45 | o.prompt_in2= r'\C_Green|\C_LightGreen\D\C_Green> ' |
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45 | o.prompt_in2= r'\C_Green|\C_LightGreen\D\C_Green> ' | |
46 | o.prompt_out= '<\#> ' |
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46 | o.prompt_out= '<\#> ' | |
47 |
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47 | |||
48 | from IPython import Release |
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48 | from IPython import Release | |
49 |
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49 | |||
50 | import sys |
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50 | import sys | |
51 | # I like my banner minimal. |
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51 | # I like my banner minimal. | |
52 |
o.banner = "Py %s |
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52 | o.banner = "IPython %s [on Py %s]\n" % (Release.version,sys.version.split(None,1)[0]) | |
53 |
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53 | |||
54 | # make 'd' an alias for ls -F |
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54 | # make 'd' an alias for ls -F | |
55 |
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55 | |||
56 | ip.magic('alias d ls -F --color=auto') |
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56 | ip.magic('alias d ls -F --color=auto') | |
57 |
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57 | |||
58 | ip.IP.default_option('cd','-q') |
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58 | ip.IP.default_option('cd','-q') | |
59 |
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59 | |||
60 | # If you only rarely want to execute the things you %edit... |
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60 | # If you only rarely want to execute the things you %edit... | |
61 |
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61 | |||
62 | #ip.IP.default_option('edit','-x') |
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62 | #ip.IP.default_option('edit','-x') | |
63 |
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63 | |||
64 |
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64 | |||
65 | o.prompts_pad_left="1" |
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65 | o.prompts_pad_left="1" | |
66 | # Remove all blank lines in between prompts, like a normal shell. |
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66 | # Remove all blank lines in between prompts, like a normal shell. | |
67 | o.separate_in="0" |
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67 | o.separate_in="0" | |
68 | o.separate_out="0" |
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68 | o.separate_out="0" | |
69 | o.separate_out2="0" |
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69 | o.separate_out2="0" | |
70 |
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70 | |||
71 | # now alias all syscommands |
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71 | # now alias all syscommands | |
72 |
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72 | |||
73 | db = ip.db |
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73 | db = ip.db | |
74 |
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74 | |||
75 | syscmds = db.get("syscmdlist",[] ) |
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75 | syscmds = db.get("syscmdlist",[] ) | |
76 | if not syscmds: |
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76 | if not syscmds: | |
77 | print textwrap.dedent(""" |
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77 | print textwrap.dedent(""" | |
78 | System command list not initialized, probably the first run... |
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78 | System command list not initialized, probably the first run... | |
79 | running %rehashx to refresh the command list. Run %rehashx |
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79 | running %rehashx to refresh the command list. Run %rehashx | |
80 | again to refresh command list (after installing new software etc.) |
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80 | again to refresh command list (after installing new software etc.) | |
81 | """) |
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81 | """) | |
82 | ip.magic('rehashx') |
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82 | ip.magic('rehashx') | |
83 | syscmds = db.get("syscmdlist") |
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83 | syscmds = db.get("syscmdlist") | |
84 |
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84 | |||
85 | # locase aliases on win#2 only |
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85 | # locase aliases on win#2 only | |
86 | if os.name == 'posix': |
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86 | if os.name == 'posix': | |
87 | mapper = lambda s:s |
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87 | mapper = lambda s:s | |
88 | else: |
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88 | else: | |
89 | def mapper(s): return s.lower() |
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89 | def mapper(s): return s.lower() | |
90 |
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90 | |||
91 | for cmd in syscmds: |
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91 | for cmd in syscmds: | |
92 | #print "al",cmd |
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92 | #print "al",cmd | |
93 | noext, ext = os.path.splitext(cmd) |
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93 | noext, ext = os.path.splitext(cmd) | |
94 | ip.IP.alias_table[mapper(noext)] = (0,cmd) |
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94 | ip.IP.alias_table[mapper(noext)] = (0,cmd) | |
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95 | ||||
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96 | ||||
95 | extend_shell_behavior(ip) |
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97 | extend_shell_behavior(ip) | |
96 |
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98 | |||
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99 | # XXX You do not need to understand the next function! | |||
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100 | # This should probably be moved out of profile | |||
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101 | ||||
97 | def extend_shell_behavior(ip): |
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102 | def extend_shell_behavior(ip): | |
98 |
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103 | |||
99 | # Instead of making signature a global variable tie it to IPSHELL. |
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104 | # Instead of making signature a global variable tie it to IPSHELL. | |
100 | # In future if it is required to distinguish between different |
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105 | # In future if it is required to distinguish between different | |
101 | # shells we can assign a signature per shell basis |
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106 | # shells we can assign a signature per shell basis | |
102 | ip.IP.__sig__ = 0xa005 |
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107 | ip.IP.__sig__ = 0xa005 | |
103 | # mark the IPSHELL with this signature |
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108 | # mark the IPSHELL with this signature | |
104 | ip.IP.user_ns['__builtins__'].__dict__['__sig__'] = ip.IP.__sig__ |
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109 | ip.IP.user_ns['__builtins__'].__dict__['__sig__'] = ip.IP.__sig__ | |
105 |
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110 | |||
106 | from IPython.Itpl import ItplNS |
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111 | from IPython.Itpl import ItplNS | |
107 | from IPython.genutils import shell |
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112 | from IPython.genutils import shell | |
108 | # utility to expand user variables via Itpl |
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113 | # utility to expand user variables via Itpl | |
109 | # xxx do something sensible with depth? |
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114 | # xxx do something sensible with depth? | |
110 | ip.IP.var_expand = lambda cmd, lvars=None, depth=2: \ |
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115 | ip.IP.var_expand = lambda cmd, lvars=None, depth=2: \ | |
111 | str(ItplNS(cmd.replace('#','\#'), ip.IP.user_ns, get_locals())) |
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116 | str(ItplNS(cmd.replace('#','\#'), ip.IP.user_ns, get_locals())) | |
112 |
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117 | |||
113 | def get_locals(): |
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118 | def get_locals(): | |
114 | """ Substituting a variable through Itpl deep inside the IPSHELL stack |
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119 | """ Substituting a variable through Itpl deep inside the IPSHELL stack | |
115 | requires the knowledge of all the variables in scope upto the last |
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120 | requires the knowledge of all the variables in scope upto the last | |
116 | IPSHELL frame. This routine simply merges all the local variables |
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121 | IPSHELL frame. This routine simply merges all the local variables | |
117 | on the IPSHELL stack without worrying about their scope rules |
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122 | on the IPSHELL stack without worrying about their scope rules | |
118 | """ |
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123 | """ | |
119 | import sys |
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124 | import sys | |
120 | # note lambda expression constitues a function call |
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125 | # note lambda expression constitues a function call | |
121 | # hence fno should be incremented by one |
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126 | # hence fno should be incremented by one | |
122 | getsig = lambda fno: sys._getframe(fno+1).f_globals \ |
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127 | getsig = lambda fno: sys._getframe(fno+1).f_globals \ | |
123 | ['__builtins__'].__dict__['__sig__'] |
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128 | ['__builtins__'].__dict__['__sig__'] | |
124 | getlvars = lambda fno: sys._getframe(fno+1).f_locals |
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129 | getlvars = lambda fno: sys._getframe(fno+1).f_locals | |
125 | # trackback until we enter the IPSHELL |
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130 | # trackback until we enter the IPSHELL | |
126 | frame_no = 1 |
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131 | frame_no = 1 | |
127 | sig = ip.IP.__sig__ |
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132 | sig = ip.IP.__sig__ | |
128 | fsig = ~sig |
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133 | fsig = ~sig | |
129 | while fsig != sig : |
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134 | while fsig != sig : | |
130 | try: |
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135 | try: | |
131 | fsig = getsig(frame_no) |
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136 | fsig = getsig(frame_no) | |
132 | except (AttributeError, KeyError): |
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137 | except (AttributeError, KeyError): | |
133 | frame_no += 1 |
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138 | frame_no += 1 | |
134 | except ValueError: |
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139 | except ValueError: | |
135 | # stack is depleted |
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140 | # stack is depleted | |
136 | # call did not originate from IPSHELL |
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141 | # call did not originate from IPSHELL | |
137 | return {} |
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142 | return {} | |
138 | first_frame = frame_no |
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143 | first_frame = frame_no | |
139 | # walk further back until we exit from IPSHELL or deplete stack |
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144 | # walk further back until we exit from IPSHELL or deplete stack | |
140 | try: |
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145 | try: | |
141 | while(sig == getsig(frame_no+1)): |
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146 | while(sig == getsig(frame_no+1)): | |
142 | frame_no += 1 |
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147 | frame_no += 1 | |
143 | except (AttributeError, KeyError, ValueError): |
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148 | except (AttributeError, KeyError, ValueError): | |
144 | pass |
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149 | pass | |
145 | # merge the locals from top down hence overriding |
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150 | # merge the locals from top down hence overriding | |
146 | # any re-definitions of variables, functions etc. |
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151 | # any re-definitions of variables, functions etc. | |
147 | lvars = {} |
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152 | lvars = {} | |
148 | for fno in range(frame_no, first_frame-1, -1): |
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153 | for fno in range(frame_no, first_frame-1, -1): | |
149 | lvars.update(getlvars(fno)) |
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154 | lvars.update(getlvars(fno)) | |
150 | #print '\n'*5, first_frame, frame_no, '\n', lvars, '\n'*5 #dbg |
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155 | #print '\n'*5, first_frame, frame_no, '\n', lvars, '\n'*5 #dbg | |
151 | return lvars |
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156 | return lvars | |
152 |
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157 | |||
153 | def _runlines(lines): |
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158 | def _runlines(lines): | |
154 | """Run a string of one or more lines of source. |
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159 | """Run a string of one or more lines of source. | |
155 |
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160 | |||
156 | This method is capable of running a string containing multiple source |
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161 | This method is capable of running a string containing multiple source | |
157 | lines, as if they had been entered at the IPython prompt. Since it |
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162 | lines, as if they had been entered at the IPython prompt. Since it | |
158 | exposes IPython's processing machinery, the given strings can contain |
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163 | exposes IPython's processing machinery, the given strings can contain | |
159 | magic calls (%magic), special shell access (!cmd), etc.""" |
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164 | magic calls (%magic), special shell access (!cmd), etc.""" | |
160 |
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165 | |||
161 | # We must start with a clean buffer, in case this is run from an |
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166 | # We must start with a clean buffer, in case this is run from an | |
162 | # interactive IPython session (via a magic, for example). |
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167 | # interactive IPython session (via a magic, for example). | |
163 | ip.IP.resetbuffer() |
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168 | ip.IP.resetbuffer() | |
164 | lines = lines.split('\n') |
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169 | lines = lines.split('\n') | |
165 | more = 0 |
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170 | more = 0 | |
166 | command = '' |
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171 | command = '' | |
167 | for line in lines: |
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172 | for line in lines: | |
168 | # skip blank lines so we don't mess up the prompt counter, but do |
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173 | # skip blank lines so we don't mess up the prompt counter, but do | |
169 | # NOT skip even a blank line if we are in a code block (more is |
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174 | # NOT skip even a blank line if we are in a code block (more is | |
170 | # true) |
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175 | # true) | |
171 | # if command is not empty trim the line |
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176 | # if command is not empty trim the line | |
172 | if command != '' : |
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177 | if command != '' : | |
173 | line = line.strip() |
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178 | line = line.strip() | |
174 | # add the broken line to the command |
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179 | # add the broken line to the command | |
175 | if line and line[-1] == '\\' : |
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180 | if line and line[-1] == '\\' : | |
176 | command += line[0:-1] + ' ' |
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181 | command += line[0:-1] + ' ' | |
177 | more = True |
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182 | more = True | |
178 | continue |
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183 | continue | |
179 | else : |
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184 | else : | |
180 | # add the last (current) line to the command |
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185 | # add the last (current) line to the command | |
181 | command += line |
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186 | command += line | |
182 | if command or more: |
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187 | if command or more: | |
183 | more = ip.IP.push(ip.IP.prefilter(command,more)) |
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188 | more = ip.IP.push(ip.IP.prefilter(command,more)) | |
184 | command = '' |
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189 | command = '' | |
185 | # IPython's runsource returns None if there was an error |
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190 | # IPython's runsource returns None if there was an error | |
186 | # compiling the code. This allows us to stop processing right |
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191 | # compiling the code. This allows us to stop processing right | |
187 | # away, so the user gets the error message at the right place. |
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192 | # away, so the user gets the error message at the right place. | |
188 | if more is None: |
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193 | if more is None: | |
189 | break |
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194 | break | |
190 | # final newline in case the input didn't have it, so that the code |
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195 | # final newline in case the input didn't have it, so that the code | |
191 | # actually does get executed |
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196 | # actually does get executed | |
192 | if more: |
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197 | if more: | |
193 | ip.IP.push('\n') |
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198 | ip.IP.push('\n') | |
194 |
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199 | |||
195 | ip.IP.runlines = _runlines |
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200 | ip.IP.runlines = _runlines | |
196 |
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201 | |||
197 | main() |
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202 | main() |
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