Mercurial > hg
annotate mercurial/exewrapper.c @ 45796:e9555305c5c6
templates: include all non-branch namespaces in default one-line summary
I left out branches and custom namespaces on purpose from D9252
because I figured that people like us (Google) who have custom
namespaces can also have custom configs. However, I just realized that
this makes everyone with the topic extension lose the topic they've
had in rebase output for a long time (ever since someone was nice
enough to add it in D741). Sorry about the churn.
The more generic template couldn't easily keep the "log.bookmark"
label in the template because the namespace is called "bookmarks"
(plural). That means that we can't be compatible with users' existing
configs for "log.bookmark", so I decided to change the labels to be in
a brand-new "oneline-summary" namespace.
Differential Revision: https://phab.mercurial-scm.org/D9262
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Thu, 29 Oct 2020 09:03:08 -0700 |
parents | ef7119cd4965 |
children | 825d5a5907b4 |
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1 /* |
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2 exewrapper.c - wrapper for calling a python script on Windows |
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3 |
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4 Copyright 2012 Adrian Buehlmann <adrian@cadifra.com> and others |
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5 |
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6 This software may be used and distributed according to the terms of the |
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7 GNU General Public License version 2 or any later version. |
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8 */ |
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9 |
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10 #include <Python.h> |
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11 #include <stdio.h> |
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12 #include <tchar.h> |
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13 #include <windows.h> |
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14 |
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15 #include "hgpythonlib.h" |
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16 |
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17 #ifdef __GNUC__ |
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18 int strcat_s(char *d, size_t n, const char *s) |
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19 { |
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20 return !strncat(d, s, n); |
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21 } |
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22 int strcpy_s(char *d, size_t n, const char *s) |
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23 { |
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24 return !strncpy(d, s, n); |
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25 } |
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26 |
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27 #define _tcscpy_s strcpy_s |
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28 #define _tcscat_s strcat_s |
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29 #define _countof(array) (sizeof(array) / sizeof(array[0])) |
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30 #endif |
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31 |
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32 static TCHAR pyscript[MAX_PATH + 10]; |
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33 static TCHAR pyhome[MAX_PATH + 10]; |
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34 static TCHAR pydllfile[MAX_PATH + 10]; |
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35 |
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36 int _tmain(int argc, TCHAR *argv[]) |
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37 { |
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38 TCHAR *p; |
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39 int ret; |
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40 int i; |
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41 int n; |
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42 TCHAR **pyargv; |
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43 WIN32_FIND_DATA fdata; |
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44 HANDLE hfind; |
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45 const char *err; |
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46 HMODULE pydll; |
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47 void(__cdecl * Py_SetPythonHome)(TCHAR * home); |
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48 int(__cdecl * Py_Main)(int argc, TCHAR *argv[]); |
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49 |
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50 #if PY_MAJOR_VERSION >= 3 |
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51 Py_LegacyWindowsStdioFlag = 1; |
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52 #endif |
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53 |
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54 if (GetModuleFileName(NULL, pyscript, _countof(pyscript)) == 0) { |
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55 err = "GetModuleFileName failed"; |
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56 goto bail; |
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57 } |
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58 |
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59 p = _tcsrchr(pyscript, '.'); |
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60 if (p == NULL) { |
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61 err = "malformed module filename"; |
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62 goto bail; |
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63 } |
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64 *p = 0; /* cut trailing ".exe" */ |
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65 _tcscpy_s(pyhome, _countof(pyhome), pyscript); |
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66 |
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67 hfind = FindFirstFile(pyscript, &fdata); |
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68 if (hfind != INVALID_HANDLE_VALUE) { |
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69 /* pyscript exists, close handle */ |
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70 FindClose(hfind); |
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71 } else { |
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72 /* file pyscript isn't there, take <pyscript>exe.py */ |
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73 _tcscat_s(pyscript, _countof(pyscript), _T("exe.py")); |
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74 } |
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75 |
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76 pydll = NULL; |
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77 |
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78 p = _tcsrchr(pyhome, _T('\\')); |
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79 if (p == NULL) { |
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80 err = "can't find backslash in module filename"; |
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81 goto bail; |
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82 } |
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83 *p = 0; /* cut at directory */ |
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84 |
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85 /* check for private Python of HackableMercurial */ |
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86 _tcscat_s(pyhome, _countof(pyhome), _T("\\hg-python")); |
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87 |
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88 hfind = FindFirstFile(pyhome, &fdata); |
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89 if (hfind != INVALID_HANDLE_VALUE) { |
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90 /* Path .\hg-python exists. We are probably in HackableMercurial |
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91 scenario, so let's load python dll from this dir. */ |
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92 FindClose(hfind); |
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93 _tcscpy_s(pydllfile, _countof(pydllfile), pyhome); |
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94 _tcscat_s(pydllfile, _countof(pydllfile), |
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95 _T("\\") _T(HGPYTHONLIB) _T(".dll")); |
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96 pydll = LoadLibrary(pydllfile); |
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97 if (pydll == NULL) { |
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98 err = "failed to load private Python DLL " HGPYTHONLIB |
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99 ".dll"; |
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100 goto bail; |
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101 } |
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102 Py_SetPythonHome = |
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103 (void *)GetProcAddress(pydll, "Py_SetPythonHome"); |
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104 if (Py_SetPythonHome == NULL) { |
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105 err = "failed to get Py_SetPythonHome"; |
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106 goto bail; |
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107 } |
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108 Py_SetPythonHome(pyhome); |
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109 } |
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110 |
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111 if (pydll == NULL) { |
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112 pydll = LoadLibrary(_T(HGPYTHONLIB) _T(".dll")); |
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113 if (pydll == NULL) { |
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114 err = "failed to load Python DLL " HGPYTHONLIB ".dll"; |
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115 goto bail; |
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116 } |
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117 } |
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118 |
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119 Py_Main = (void *)GetProcAddress(pydll, "Py_Main"); |
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120 if (Py_Main == NULL) { |
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121 err = "failed to get Py_Main"; |
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122 goto bail; |
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123 } |
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124 |
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125 /* |
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126 Only add the pyscript to the args, if it's not already there. It may |
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127 already be there, if the script spawned a child process of itself, in |
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128 the same way as it got called, that is, with the pyscript already in |
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129 place. So we optionally accept the pyscript as the first argument |
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130 (argv[1]), letting our exe taking the role of the python interpreter. |
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131 */ |
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132 if (argc >= 2 && _tcscmp(argv[1], pyscript) == 0) { |
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133 /* |
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134 pyscript is already in the args, so there is no need to copy |
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135 the args and we can directly call the python interpreter with |
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136 the original args. |
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137 */ |
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138 return Py_Main(argc, argv); |
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139 } |
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140 |
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141 /* |
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142 Start assembling the args for the Python interpreter call. We put the |
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143 name of our exe (argv[0]) in the position where the python.exe |
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144 canonically is, and insert the pyscript next. |
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145 */ |
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146 pyargv = malloc((argc + 5) * sizeof(TCHAR *)); |
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147 if (pyargv == NULL) { |
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148 err = "not enough memory"; |
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149 goto bail; |
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150 } |
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151 n = 0; |
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152 pyargv[n++] = argv[0]; |
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153 pyargv[n++] = pyscript; |
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154 |
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155 /* copy remaining args from the command line */ |
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156 for (i = 1; i < argc; i++) |
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157 pyargv[n++] = argv[i]; |
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158 /* argv[argc] is guaranteed to be NULL, so we forward that guarantee */ |
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159 pyargv[n] = NULL; |
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160 |
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161 ret = Py_Main(n, pyargv); /* The Python interpreter call */ |
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162 |
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163 free(pyargv); |
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164 return ret; |
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165 |
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166 bail: |
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167 fprintf(stderr, "abort: %s\n", err); |
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168 return 255; |
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169 } |