PageRenderTime 29ms CodeModel.GetById 20ms app.highlight 7ms RepoModel.GetById 1ms app.codeStats 0ms

/Tools/msi/msisupport.c

http://unladen-swallow.googlecode.com/
C | 93 lines | 67 code | 11 blank | 15 comment | 24 complexity | 2ed09e4a5e04971d276dc3e302fca865 MD5 | raw file
 1#include "windows.h"
 2#include "msiquery.h"
 3
 4/* Print a debug message to the installer log file.
 5 * To see the debug messages, install with
 6 * msiexec /i pythonxy.msi /l*v python.log
 7 */
 8static UINT debug(MSIHANDLE hInstall, LPCSTR msg)
 9{
10	MSIHANDLE hRec = MsiCreateRecord(1);
11	if (!hRec || MsiRecordSetStringA(hRec, 1, msg) != ERROR_SUCCESS) {
12		return ERROR_INSTALL_FAILURE;
13	}
14	MsiProcessMessage(hInstall, INSTALLMESSAGE_INFO, hRec);
15	MsiCloseHandle(hRec);
16	return ERROR_SUCCESS;
17}
18
19/* Check whether the TARGETDIR exists and is a directory.
20 * Set TargetExists appropriately.
21 */
22UINT __declspec(dllexport) __stdcall CheckDir(MSIHANDLE hInstall)
23{
24#define PSIZE 1024
25	WCHAR wpath[PSIZE];
26	char path[PSIZE];
27	UINT result;
28	DWORD size = PSIZE;
29	DWORD attributes;
30
31	
32	result = MsiGetPropertyW(hInstall, L"TARGETDIR", wpath, &size);
33	if (result != ERROR_SUCCESS)
34		return result;
35	wpath[size] = L'\0';
36	path[size] = L'\0';
37
38	attributes = GetFileAttributesW(wpath);
39	if (attributes == INVALID_FILE_ATTRIBUTES ||
40		!(attributes & FILE_ATTRIBUTE_DIRECTORY)) 
41	{
42		return MsiSetPropertyA(hInstall, "TargetExists", "0");
43	} else {
44		return MsiSetPropertyA(hInstall, "TargetExists", "1");
45	}
46}
47
48/* Update the state of the REGISTRY.tcl component according to the
49 * Extension and TclTk features. REGISTRY.tcl must be installed
50 * if both features are installed, and must be absent otherwise.
51 */
52UINT __declspec(dllexport) __stdcall UpdateEditIDLE(MSIHANDLE hInstall)
53{
54	INSTALLSTATE ext_old, ext_new, tcl_old, tcl_new, reg_new;
55	UINT result;
56
57	result = MsiGetFeatureStateA(hInstall, "Extensions", &ext_old, &ext_new);
58	if (result != ERROR_SUCCESS)
59		return result;
60	result = MsiGetFeatureStateA(hInstall, "TclTk", &tcl_old, &tcl_new);
61	if (result != ERROR_SUCCESS)
62		return result;
63
64	/* If the current state is Absent, and the user did not select
65	   the feature in the UI, Installer apparently sets the "selected"
66	   state to unknown. Update it to the current value, then. */
67	if (ext_new == INSTALLSTATE_UNKNOWN)
68		ext_new = ext_old;
69	if (tcl_new == INSTALLSTATE_UNKNOWN)
70		tcl_new = tcl_old;
71
72	// XXX consider current state of REGISTRY.tcl?
73	if (((tcl_new == INSTALLSTATE_LOCAL) ||
74		 (tcl_new == INSTALLSTATE_SOURCE) ||
75		 (tcl_new == INSTALLSTATE_DEFAULT)) &&
76		((ext_new == INSTALLSTATE_LOCAL) ||
77		 (ext_new == INSTALLSTATE_SOURCE) ||
78		 (ext_new == INSTALLSTATE_DEFAULT))) {
79		reg_new = INSTALLSTATE_SOURCE;
80	} else { 
81		reg_new = INSTALLSTATE_ABSENT;
82	}
83	result = MsiSetComponentStateA(hInstall, "REGISTRY.tcl", reg_new);
84	return result;
85}
86
87BOOL APIENTRY DllMain(HANDLE hModule, 
88                      DWORD  ul_reason_for_call, 
89                      LPVOID lpReserved)
90{
91    return TRUE;
92}
93