cpython/PCbuild8/make_buildinfo.c

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#include <windows.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
/* This file creates the getbuildinfo2.c file, by
invoking subwcrev.exe (if found).
If this isn't a subversion checkout, or subwcrev isn't
found, it copies ..\\Modules\\getbuildinfo.c instead.
A file, getbuildinfo2.h is then updated to define
SUBWCREV if it was a subversion checkout.
getbuildinfo2.c is part of the pythoncore project with
getbuildinfo2.h as a forced include. This helps
VisualStudio refrain from unnecessary compiles much of the
time.
Currently, subwcrev.exe is found from the registry entries
of TortoiseSVN.
make_buildinfo.exe is called as a pre-build step for pythoncore.
*/
int make_buildinfo2()
{
struct _stat st;
HKEY hTortoise;
char command[500];
DWORD type, size;
if (_stat(".svn", &st) < 0)
return 0;
/* Allow suppression of subwcrev.exe invocation if a no_subwcrev file is present. */
if (_stat("no_subwcrev", &st) == 0)
return 0;
if (RegOpenKey(HKEY_LOCAL_MACHINE, "Software\\TortoiseSVN", &hTortoise) != ERROR_SUCCESS &&
RegOpenKey(HKEY_CURRENT_USER, "Software\\TortoiseSVN", &hTortoise) != ERROR_SUCCESS)
/* Tortoise not installed */
return 0;
command[0] = '"'; /* quote the path to the executable */
size = sizeof(command) - 1;
if (RegQueryValueEx(hTortoise, "Directory", 0, &type, command+1, &size) != ERROR_SUCCESS ||
type != REG_SZ)
/* Registry corrupted */
return 0;
strcat_s(command, sizeof(command), "bin\\subwcrev.exe");
if (_stat(command+1, &st) < 0)
/* subwcrev.exe not part of the release */
return 0;
strcat_s(command, sizeof(command), "\" .. ..\\Modules\\getbuildinfo.c getbuildinfo2.c");
puts(command); fflush(stdout);
if (system(command) < 0)
return 0;
return 1;
}
int main(int argc, char*argv[])
{
char command[500] = "";
int svn;
FILE *f;
if (fopen_s(&f, "getbuildinfo2.h", "w"))
return EXIT_FAILURE;
/* Get getbuildinfo.c from svn as getbuildinfo2.c */
svn = make_buildinfo2();
if (svn) {
puts("got getbuildinfo2.c from svn. Updating getbuildinfo2.h");
/* yes. make sure SUBWCREV is defined */
fprintf(f, "#define SUBWCREV\n");
} else {
puts("didn't get getbuildinfo2.c from svn. Copying from Modules and clearing getbuildinfo2.h");
strcat_s(command, sizeof(command), "copy ..\\Modules\\getbuildinfo.c getbuildinfo2.c");
puts(command); fflush(stdout);
if (system(command) < 0)
return EXIT_FAILURE;
}
fclose(f);
return 0;
}