summaryrefslogtreecommitdiff
path: root/Source/cmAddCustomCommandCommand.cxx
blob: a55c7e84203ff3f1df1801d6f54230cd4afa3d9b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
/*=========================================================================

  Program:   CMake - Cross-Platform Makefile Generator
  Module:    $RCSfile$
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#include "cmAddCustomCommandCommand.h"

#include "cmTarget.h"

#include "cmSourceFile.h"

// cmAddCustomCommandCommand
bool cmAddCustomCommandCommand::InitialPass(
  std::vector<std::string> const& args)
{
  /* Let's complain at the end of this function about the lack of a particular
     arg. For the moment, let's say that COMMAND, and either TARGET or SOURCE
     are required.
  */
  if (args.size() < 4)
    {
      this->SetError("called with wrong number of arguments.");
      return false;
    }

  std::string source, target, main_dependency, working;
  std::string comment_buffer;
  const char* comment = 0;
  std::vector<std::string> depends, outputs, output;
  bool verbatim = false;
  bool append = false;

  // Accumulate one command line at a time.
  cmCustomCommandLine currentLine;

  // Save all command lines.
  cmCustomCommandLines commandLines;

  cmTarget::CustomCommandType cctype = cmTarget::POST_BUILD;

  enum tdoing {
    doing_source,
    doing_command,
    doing_target,
    doing_depends,
    doing_main_dependency,
    doing_output,
    doing_outputs,
    doing_comment,
    doing_working_directory,
    doing_nothing
  };

  tdoing doing = doing_nothing;

  for (unsigned int j = 0; j < args.size(); ++j)
    {
    std::string const& copy = args[j];

    if(copy == "SOURCE")
      {
      doing = doing_source;
      }
    else if(copy == "COMMAND")
      {
      doing = doing_command;

      // Save the current command before starting the next command.
      if(!currentLine.empty())
        {
        commandLines.push_back(currentLine);
        currentLine.clear();
        }
      }
    else if(copy == "PRE_BUILD")
      {
      cctype = cmTarget::PRE_BUILD;
      }
    else if(copy == "PRE_LINK")
      {
      cctype = cmTarget::PRE_LINK;
      }
    else if(copy == "POST_BUILD")
      {
      cctype = cmTarget::POST_BUILD;
      }
    else if(copy == "VERBATIM")
      {
      verbatim = true;
      }
    else if(copy == "APPEND")
      {
      append = true;
      }
    else if(copy == "TARGET")
      {
      doing = doing_target;
      }
    else if(copy == "ARGS")
      {
      // Ignore this old keyword.
      }
    else if (copy == "DEPENDS")
      {
      doing = doing_depends;
      }
    else if (copy == "OUTPUTS")
      {
      doing = doing_outputs;
      }
    else if (copy == "OUTPUT")
      {
      doing = doing_output;
      }
    else if (copy == "WORKING_DIRECTORY")
      {
      doing = doing_working_directory;
      }
    else if (copy == "MAIN_DEPENDENCY")
      {
      doing = doing_main_dependency;
      }
    else if (copy == "COMMENT")
      {
      doing = doing_comment;
      }
    else
      {
      std::string filename;
      switch (doing)
        {
        case doing_output:
        case doing_outputs:
          if (!cmSystemTools::FileIsFullPath(copy.c_str()))
            {
            filename = this->Makefile->GetStartDirectory();
            filename += "/";
            }
          filename += copy;
          break;
        case doing_source:
          // We do not want to convert the argument to SOURCE because
          // that option is only available for backward compatibility.
          // Old-style use of this command may use the SOURCE==TARGET
          // trick which we must preserve.  If we convert the source
          // to a full path then it will no longer equal the target.
        default:
          break;
        }

       switch (doing)
         {
         case doing_working_directory:
           working = copy;
           break;
         case doing_source:
           source = copy;
           break;
         case doing_output:
           output.push_back(filename);
           break;
         case doing_main_dependency:
           main_dependency = copy;
           break;
         case doing_command:
           currentLine.push_back(copy);
           break;
         case doing_target:
           target = copy;
           break;
         case doing_depends:
           depends.push_back(copy);
           break;
         case doing_outputs:
           outputs.push_back(filename);
           break;
         case doing_comment:
           comment_buffer = copy;
           comment = comment_buffer.c_str();
           break;
         default:
           this->SetError("Wrong syntax. Unknown type of argument.");
           return false;
         }
      }
    }

  // Store the last command line finished.
  if(!currentLine.empty())
    {
    commandLines.push_back(currentLine);
    currentLine.clear();
    }

  // At this point we could complain about the lack of arguments.  For
  // the moment, let's say that COMMAND, TARGET are always required.
  if(output.empty() && target.empty())
    {
    this->SetError("Wrong syntax. A TARGET or OUTPUT must be specified.");
    return false;
    }

  if(source.empty() && !target.empty() && !output.empty())
    {
    this->SetError(
      "Wrong syntax. A TARGET and OUTPUT can not both be specified.");
    return false;
    }
  if(append && output.empty())
    {
    this->SetError("given APPEND option with no OUTPUT.");
    return false;
    }

  // Make sure the output names and locations are safe.
  if(!this->CheckOutputs(output) || !this->CheckOutputs(outputs))
    {
    return false;
    }

  // Check for an append request.
  if(append)
    {
    // Lookup an existing command.
    if(cmSourceFile* sf =
       this->Makefile->GetSourceFileWithOutput(output[0].c_str()))
      {
      if(cmCustomCommand* cc = sf->GetCustomCommand())
        {
        cc->AppendCommands(commandLines);
        cc->AppendDepends(depends);
        return true;
        }
      }

    // No command for this output exists.
    cmOStringStream e;
    e << "given APPEND option with output \"" << output[0].c_str()
      << "\" which is not already a custom command output.";
    this->SetError(e.str().c_str());
    return false;
    }

  // Choose which mode of the command to use.
  bool escapeOldStyle = !verbatim;
  if(source.empty() && output.empty())
    {
    // Source is empty, use the target.
    std::vector<std::string> no_depends;
    this->Makefile->AddCustomCommandToTarget(target.c_str(), no_depends,
                                             commandLines, cctype,
                                             comment, working.c_str(),
                                             escapeOldStyle);
    }
  else if(target.empty())
    {
    // Target is empty, use the output.
    this->Makefile->AddCustomCommandToOutput(output, depends,
                                             main_dependency.c_str(),
                                             commandLines, comment,
                                             working.c_str(), false,
                                             escapeOldStyle);
    }
  else
    {
    // Use the old-style mode for backward compatibility.
    this->Makefile->AddCustomCommandOldStyle(target.c_str(), outputs, depends,
                                             source.c_str(), commandLines,
                                             comment);
    }
  return true;
}

//----------------------------------------------------------------------------
bool
cmAddCustomCommandCommand
::CheckOutputs(const std::vector<std::string>& outputs)
{
  for(std::vector<std::string>::const_iterator o = outputs.begin();
      o != outputs.end(); ++o)
    {
    // Make sure the file will not be generated into the source
    // directory during an out of source build.
    if(!this->Makefile->CanIWriteThisFile(o->c_str()))
      {
      std::string e = "attempted to have a file \"" + *o +
        "\" in a source directory as an output of custom command.";
      this->SetError(e.c_str());
      cmSystemTools::SetFatalErrorOccured();
      return false;
      }

    // Make sure the output file name has no invalid characters.
    std::string::size_type pos = o->find_first_of("#<>");
    if(pos != o->npos)
      {
      cmOStringStream msg;
      msg << "called with OUTPUT containing a \"" << (*o)[pos]
          << "\".  This character is not allowed.";
      this->SetError(msg.str().c_str());
      return false;
      }
    }
  return true;
}