summaryrefslogtreecommitdiff
path: root/Source/cmGetDirectoryPropertyCommand.cxx
blob: d892cfa756b441326b6ca076011ef004bf45f7a3 (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
/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#include "cmGetDirectoryPropertyCommand.h"

#include "cmExecutionStatus.h"
#include "cmGlobalGenerator.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmPolicies.h"
#include "cmSystemTools.h"
#include "cmValue.h"

namespace {
void StoreResult(cmMakefile& makefile, std::string const& variable,
                 const char* prop);
void StoreResult(cmMakefile& makefile, std::string const& variable,
                 cmValue prop);
}

// cmGetDirectoryPropertyCommand
bool cmGetDirectoryPropertyCommand(std::vector<std::string> const& args,
                                   cmExecutionStatus& status)
{
  if (args.size() < 2) {
    status.SetError("called with incorrect number of arguments");
    return false;
  }

  auto i = args.begin();
  std::string const& variable = *i;
  ++i;

  // get the directory argument if there is one
  cmMakefile* dir = &status.GetMakefile();
  if (*i == "DIRECTORY") {
    ++i;
    if (i == args.end()) {
      status.SetError(
        "DIRECTORY argument provided without subsequent arguments");
      return false;
    }
    std::string sd = cmSystemTools::CollapseFullPath(
      *i, status.GetMakefile().GetCurrentSourceDirectory());

    // lookup the makefile from the directory name
    dir = status.GetMakefile().GetGlobalGenerator()->FindMakefile(sd);
    if (!dir) {
      status.SetError(
        "DIRECTORY argument provided but requested directory not found. "
        "This could be because the directory argument was invalid or, "
        "it is valid but has not been processed yet.");
      return false;
    }
    ++i;
    if (i == args.end()) {
      status.SetError("called with incorrect number of arguments");
      return false;
    }
  }

  // OK, now we have the directory to process, we just get the requested
  // information out of it

  if (*i == "DEFINITION") {
    ++i;
    if (i == args.end()) {
      status.SetError("A request for a variable definition was made without "
                      "providing the name of the variable to get.");
      return false;
    }
    std::string const& output = dir->GetSafeDefinition(*i);
    status.GetMakefile().AddDefinition(variable, output);
    return true;
  }

  if (i->empty()) {
    status.SetError("given empty string for the property name to get");
    return false;
  }

  if (*i == "DEFINITIONS") {
    switch (status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0059)) {
      case cmPolicies::WARN:
        status.GetMakefile().IssueMessage(
          MessageType::AUTHOR_WARNING,
          cmPolicies::GetPolicyWarning(cmPolicies::CMP0059));
        CM_FALLTHROUGH;
      case cmPolicies::OLD:
        StoreResult(status.GetMakefile(), variable,
                    status.GetMakefile().GetDefineFlagsCMP0059());
        return true;
      case cmPolicies::NEW:
      case cmPolicies::REQUIRED_ALWAYS:
      case cmPolicies::REQUIRED_IF_USED:
        break;
    }
  }
  StoreResult(status.GetMakefile(), variable, dir->GetProperty(*i));
  return true;
}

namespace {
void StoreResult(cmMakefile& makefile, std::string const& variable,
                 const char* prop)
{
  makefile.AddDefinition(variable, prop ? prop : "");
}
void StoreResult(cmMakefile& makefile, std::string const& variable,
                 cmValue prop)
{
  makefile.AddDefinition(variable, prop);
}
}