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Refactored: Move msysgit registry detection to it's own function

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Signed-off-by: Sven Strickroth <email@cs-ware.de>
This commit is contained in:
Sven Strickroth 2013-01-31 17:37:20 +01:00
parent aa3bf89df2
commit ec56af08a9
2 changed files with 30 additions and 22 deletions
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51
src/win32/findfile.c
View File

@ -113,28 +113,7 @@ int win32_find_system_file_using_registry(git_buf *path, const char *filename)
{
struct win32_path root;
HKEY hKey;
DWORD dwType = REG_SZ;
DWORD dwSize = MAX_PATH;
root.len = 0;
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, REG_MSYSGIT_INSTALL, 0, KEY_ALL_ACCESS, &hKey) == ERROR_SUCCESS)
{
if (RegQueryValueExW(hKey, L"InstallLocation", NULL, &dwType,(LPBYTE)&root.path, &dwSize) == ERROR_SUCCESS)
{
// InstallLocation points to the root of the msysgit directory
if (dwSize + 4 > MAX_PATH) // 4 = wcslen(L"etc\\")
{
giterr_set(GITERR_OS, "Cannot locate the system's msysgit directory - path too long");
return -1;
}
wcscat(root.path, L"etc\\");
root.len = (DWORD)wcslen(root.path) + 1;
}
}
RegCloseKey(hKey);
if (!root.len) {
if (win32_find_msysgit_in_registry(&root, HKEY_LOCAL_MACHINE, REG_MSYSGIT_INSTALL)) {
giterr_set(GITERR_OS, "Cannot locate the system's msysgit directory");
return -1;
}
@ -147,3 +126,31 @@ int win32_find_system_file_using_registry(git_buf *path, const char *filename)
return 0;
}
int win32_find_msysgit_in_registry(struct win32_path *root, const HKEY hieve, const wchar_t *key)
{
HKEY hKey;
DWORD dwType = REG_SZ;
DWORD dwSize = MAX_PATH;
assert(root);
root->len = 0;
if (RegOpenKeyExW(hieve, key, 0, KEY_ALL_ACCESS, &hKey) == ERROR_SUCCESS)
{
if (RegQueryValueExW(hKey, L"InstallLocation", NULL, &dwType, (LPBYTE)&root->path, &dwSize) == ERROR_SUCCESS)
{
// InstallLocation points to the root of the msysgit directory
if (dwSize + 4 > MAX_PATH) // 4 = wcslen(L"etc\\")
{
giterr_set(GITERR_OS, "Cannot locate the system's msysgit directory - path too long");
return -1;
}
wcscat(root->path, L"etc\\");
root->len = (DWORD)wcslen(root->path) + 1;
}
}
RegCloseKey(hKey);
return root->len ? 0 : GIT_ENOTFOUND;
}

1
src/win32/findfile.h
View File

@ -18,6 +18,7 @@ int win32_expand_path(struct win32_path *s_root, const wchar_t *templ);
int win32_find_file(git_buf *path, const struct win32_path *root, const char *filename);
int win32_find_system_file_using_path(git_buf *path, const char *filename);
int win32_find_system_file_using_registry(git_buf *path, const char *filename);
int win32_find_msysgit_in_registry(struct win32_path *root, const HKEY hieve, const wchar_t *key);
#endif