mirror of https://github.com/python/cpython
341 lines
9.0 KiB
C
341 lines
9.0 KiB
C
#include "Python.h"
|
|
#include "osdefs.h"
|
|
|
|
#include "pythonresources.h"
|
|
|
|
|
|
/* Return the initial python search path. This is called once from
|
|
** initsys() to initialize sys.path.
|
|
**
|
|
** If USE_BUILTIN_PATH is defined the path defined here is used
|
|
** (after prepending the python home dir to each item).
|
|
** If it is not defined the path is gotten from a resource in the
|
|
** Preferences file.
|
|
**
|
|
** XXXX This code needs cleaning up. The routines here have moved
|
|
** around quite a bit, and they're pretty messy for that reason.
|
|
*/
|
|
|
|
#include <Files.h>
|
|
#include <Aliases.h>
|
|
#include <Folders.h>
|
|
#include <Resources.h>
|
|
#include <TextUtils.h>
|
|
#include <Dialogs.h>
|
|
|
|
#define PYTHONPATH "\
|
|
:\n\
|
|
:Lib\n\
|
|
:Lib:stdwin\n\
|
|
:Lib:test\n\
|
|
:Lib:mac"
|
|
|
|
|
|
char *
|
|
Py_GetPath()
|
|
{
|
|
/* Modified by Jack to do something a bit more sensible:
|
|
** - Prepend the python home-directory (which is obtained from a Preferences
|
|
** resource)
|
|
** - Add :
|
|
*/
|
|
static char *pythonpath;
|
|
char *curwd;
|
|
char *p, *endp;
|
|
int newlen;
|
|
staticforward char *PyMac_GetPythonDir();
|
|
#ifndef USE_BUILTIN_PATH
|
|
staticforward char *PyMac_GetPythonPath();
|
|
#endif
|
|
|
|
if ( pythonpath ) return pythonpath;
|
|
curwd = PyMac_GetPythonDir();
|
|
#ifndef USE_BUILTIN_PATH
|
|
if ( pythonpath = PyMac_GetPythonPath(curwd) )
|
|
return pythonpath;
|
|
printf("Warning: No pythonpath resource found, using builtin default\n");
|
|
#endif
|
|
p = PYTHONPATH;
|
|
endp = p;
|
|
pythonpath = malloc(2);
|
|
if ( pythonpath == NULL ) return PYTHONPATH;
|
|
strcpy(pythonpath, ":");
|
|
while (*endp) {
|
|
endp = strchr(p, '\n');
|
|
if ( endp == NULL )
|
|
endp = p + strlen(p);
|
|
newlen = strlen(pythonpath) + 1 + strlen(curwd) + (endp-p);
|
|
pythonpath = realloc(pythonpath, newlen+1);
|
|
if ( pythonpath == NULL ) return PYTHONPATH;
|
|
strcat(pythonpath, "\n");
|
|
if ( *p == ':' ) {
|
|
p++;
|
|
strcat(pythonpath, curwd);
|
|
strncat(pythonpath, p, (endp-p));
|
|
newlen--; /* Ok, ok, we've allocated one byte too much */
|
|
} else {
|
|
/* We've allocated too much in this case */
|
|
newlen -= strlen(curwd);
|
|
pythonpath = realloc(pythonpath, newlen+1);
|
|
if ( pythonpath == NULL ) return PYTHONPATH;
|
|
strncat(pythonpath, p, (endp-p));
|
|
}
|
|
pythonpath[newlen] = '\0';
|
|
p = endp + 1;
|
|
}
|
|
return pythonpath;
|
|
}
|
|
|
|
/*
|
|
** Open/create the Python Preferences file, return the handle
|
|
*/
|
|
static short
|
|
PyMac_OpenPrefFile()
|
|
{
|
|
AliasHandle handle;
|
|
FSSpec dirspec;
|
|
short prefrh;
|
|
short prefdirRefNum;
|
|
long prefdirDirID;
|
|
short action;
|
|
OSErr err;
|
|
|
|
if ( FindFolder(kOnSystemDisk, 'pref', kDontCreateFolder, &prefdirRefNum,
|
|
&prefdirDirID) != noErr ) {
|
|
/* Something wrong with preferences folder */
|
|
(void)StopAlert(NOPREFDIR_ID, NULL);
|
|
exit(1);
|
|
}
|
|
|
|
(void)FSMakeFSSpec(prefdirRefNum, prefdirDirID, "\pPython Preferences", &dirspec);
|
|
prefrh = FSpOpenResFile(&dirspec, fsRdWrShPerm);
|
|
if ( prefrh < 0 ) {
|
|
action = CautionAlert(NOPREFFILE_ID, NULL);
|
|
if ( action == NOPREFFILE_NO )
|
|
exit(1);
|
|
|
|
FSpCreateResFile(&dirspec, 'Pyth', 'pref', 0);
|
|
prefrh = FSpOpenResFile(&dirspec, fsRdWrShPerm);
|
|
if ( prefrh == -1 ) {
|
|
/* This "cannot happen":-) */
|
|
printf("Cannot create preferences file, error %d\n", ResError());
|
|
exit(1);
|
|
}
|
|
if ( (err=PyMac_process_location(&dirspec)) != 0 ) {
|
|
printf("Cannot get FSSpec for application, error %d\n", err);
|
|
exit(1);
|
|
}
|
|
dirspec.name[0] = 0;
|
|
if ((err=NewAlias(NULL, &dirspec, &handle)) != 0 ) {
|
|
printf("Cannot make alias to application directory, error %d\n", err);
|
|
exit(1);
|
|
}
|
|
AddResource((Handle)handle, 'alis', PYTHONHOME_ID, "\p");
|
|
UpdateResFile(prefrh);
|
|
|
|
} else {
|
|
UseResFile(prefrh);
|
|
}
|
|
return prefrh;
|
|
}
|
|
|
|
/*
|
|
** Return the name of the Python directory
|
|
*/
|
|
static char *
|
|
PyMac_GetPythonDir()
|
|
{
|
|
static char name[256];
|
|
AliasHandle handle;
|
|
FSSpec dirspec;
|
|
Boolean modified = 0;
|
|
short oldrh, prefrh;
|
|
|
|
oldrh = CurResFile();
|
|
/*
|
|
** First look for an override of the preferences file
|
|
*/
|
|
handle = (AliasHandle)GetResource('alis', PYTHONHOMEOVERRIDE_ID);
|
|
if ( handle != NULL ) {
|
|
prefrh = oldrh;
|
|
} else {
|
|
/*
|
|
** Remember old resource file and try to open preferences file
|
|
** in the preferences folder.
|
|
*/
|
|
prefrh = PyMac_OpenPrefFile();
|
|
/* So, we've opened our preferences file, we hope. Look for the alias */
|
|
handle = (AliasHandle)Get1Resource('alis', PYTHONHOME_ID);
|
|
if ( handle == NULL ) {
|
|
(void)StopAlert(BADPREFFILE_ID, NULL);
|
|
exit(1);
|
|
}
|
|
}
|
|
/* It exists. Resolve it (possibly updating it) */
|
|
if ( ResolveAlias(NULL, handle, &dirspec, &modified) != noErr ) {
|
|
(void)StopAlert(BADPREFFILE_ID, NULL);
|
|
exit(1);
|
|
}
|
|
if ( modified ) {
|
|
ChangedResource((Handle)handle);
|
|
UpdateResFile(prefrh);
|
|
}
|
|
if ( prefrh != oldrh ) {
|
|
CloseResFile(prefrh);
|
|
UseResFile(oldrh);
|
|
}
|
|
|
|
if ( nfullpath(&dirspec, name) == 0 ) {
|
|
strcat(name, ":");
|
|
} else {
|
|
/* If all fails, we return the current directory */
|
|
printf("Python home dir exists but I cannot find the pathname!!\n");
|
|
name[0] = 0;
|
|
(void)getwd(name);
|
|
}
|
|
return name;
|
|
}
|
|
|
|
#ifndef USE_BUILTIN_PATH
|
|
static char *
|
|
PyMac_GetPythonPath(dir)
|
|
char *dir;
|
|
{
|
|
FSSpec dirspec;
|
|
short oldrh, prefrh = -1;
|
|
short prefdirRefNum;
|
|
long prefdirDirID;
|
|
char *rv;
|
|
int i, newlen;
|
|
Str255 pathitem;
|
|
int resource_id;
|
|
OSErr err;
|
|
|
|
/*
|
|
** Remember old resource file and try to open preferences file
|
|
** in the preferences folder.
|
|
*/
|
|
oldrh = CurResFile();
|
|
if ( FindFolder(kOnSystemDisk, 'pref', kDontCreateFolder, &prefdirRefNum,
|
|
&prefdirDirID) == noErr ) {
|
|
(void)FSMakeFSSpec(prefdirRefNum, prefdirDirID, "\pPython Preferences", &dirspec);
|
|
prefrh = FSpOpenResFile(&dirspec, fsRdWrShPerm);
|
|
}
|
|
/* At this point, we may or may not have the preferences file open, and it
|
|
** may or may not contain a sys.path STR# resource. We don't care, if it doesn't
|
|
** exist we use the one from the application (the default).
|
|
** We put an initial '\n' in front of the path that we don't return to the caller
|
|
*/
|
|
if( (rv = malloc(2)) == NULL )
|
|
goto out;
|
|
strcpy(rv, "\n");
|
|
/*
|
|
** See whether there's an override.
|
|
*/
|
|
GetIndString(pathitem, PYTHONPATHOVERRIDE_ID, 1);
|
|
if ( pathitem[0] )
|
|
resource_id = PYTHONPATHOVERRIDE_ID;
|
|
else
|
|
resource_id = PYTHONPATH_ID;
|
|
for(i=1; ; i++) {
|
|
GetIndString(pathitem, resource_id, i);
|
|
if( pathitem[0] == 0 )
|
|
break;
|
|
if ( pathitem[0] >= 9 && strncmp((char *)pathitem+1, "$(PYTHON)", 9) == 0 ) {
|
|
/* We have to put the directory in place */
|
|
newlen = strlen(rv) + strlen(dir) + (pathitem[0]-9) + 2;
|
|
if( (rv=realloc(rv, newlen)) == NULL)
|
|
goto out;
|
|
strcat(rv, dir);
|
|
/* Skip a colon at the beginning of the item */
|
|
if ( pathitem[0] > 9 && pathitem[1+9] == ':' ) {
|
|
memcpy(rv+strlen(rv), pathitem+1+10, pathitem[0]-10);
|
|
newlen--;
|
|
} else {
|
|
memcpy(rv+strlen(rv), pathitem+1+9, pathitem[0]-9);
|
|
}
|
|
rv[newlen-2] = '\n';
|
|
rv[newlen-1] = 0;
|
|
} else if ( pathitem[0] >= 14 && strncmp((char *)pathitem+1, "$(APPLICATION)", 14) == 0 ) {
|
|
/* This is the application itself */
|
|
char fullname[256];
|
|
|
|
if ( (err=PyMac_process_location(&dirspec)) != 0 ) {
|
|
printf("Cannot get FSSpec for application, error %d\n", err);
|
|
exit(1);
|
|
}
|
|
if ( nfullpath(&dirspec, fullname) != 0 ) {
|
|
printf("Cannot convert application fsspec to path\n");
|
|
exit(1);
|
|
}
|
|
newlen = strlen(rv) + strlen(fullname) + 2;
|
|
if( (rv=realloc(rv, newlen)) == NULL)
|
|
goto out;
|
|
strcpy(rv+strlen(rv), fullname);
|
|
rv[newlen-2] = '\n';
|
|
rv[newlen-1] = 0;
|
|
|
|
} else {
|
|
/* Use as-is */
|
|
newlen = strlen(rv) + (pathitem[0]) + 2;
|
|
if( (rv=realloc(rv, newlen)) == NULL)
|
|
goto out;
|
|
memcpy(rv+strlen(rv), pathitem+1, pathitem[0]);
|
|
rv[newlen-2] = '\n';
|
|
rv[newlen-1] = 0;
|
|
}
|
|
}
|
|
if( strlen(rv) == 1) {
|
|
free(rv);
|
|
rv = NULL;
|
|
}
|
|
if ( rv ) {
|
|
rv[strlen(rv)-1] = 0;
|
|
rv++;
|
|
}
|
|
out:
|
|
if ( prefrh ) {
|
|
CloseResFile(prefrh);
|
|
UseResFile(oldrh);
|
|
}
|
|
return rv;
|
|
}
|
|
#endif /* !USE_BUILTIN_PATH */
|
|
|
|
void
|
|
PyMac_PreferenceOptions(int *inspect, int *verbose, int *suppress_print,
|
|
int *unbuffered, int *debugging, int *keep_normal,
|
|
int *keep_error)
|
|
{
|
|
short oldrh, prefrh;
|
|
Handle handle;
|
|
int size;
|
|
char *p;
|
|
|
|
|
|
oldrh = CurResFile();
|
|
prefrh = PyMac_OpenPrefFile();
|
|
handle = GetResource('Popt', PYTHONOPTIONSOVERRIDE_ID);
|
|
if ( handle == NULL )
|
|
handle = GetResource('Popt', PYTHONOPTIONS_ID);
|
|
if ( handle == NULL ) {
|
|
return;
|
|
}
|
|
HLock(handle);
|
|
size = GetHandleSize(handle);
|
|
p = (char *)*handle;
|
|
|
|
if ( size > POPT_INSPECT ) *inspect = p[POPT_INSPECT];
|
|
if ( size > POPT_VERBOSE ) *verbose = p[POPT_VERBOSE];
|
|
if ( size > POPT_SUPPRESS ) *suppress_print = p[POPT_SUPPRESS];
|
|
if ( size > POPT_UNBUFFERED ) *unbuffered = p[POPT_UNBUFFERED];
|
|
if ( size > POPT_DEBUGGING ) *debugging = p[POPT_DEBUGGING];
|
|
if ( size > POPT_KEEPNORM ) *keep_normal = p[POPT_KEEPNORM];
|
|
if ( size > POPT_KEEPERR ) *keep_error = p[POPT_KEEPERR];
|
|
|
|
HUnlock(handle);
|
|
|
|
CloseResFile(prefrh);
|
|
UseResFile(oldrh);
|
|
}
|