mirror of https://github.com/python/cpython
bpo-32030: Fix Py_GetPath(): init program_name (#4665)
* _PyMainInterpreterConfig_ReadEnv() now sets program_name from environment variables and pymain_parse_envvars() implements the falls back on argv[0]. * Remove _PyMain.program_name: use the program_name from _PyMainInterpreterConfig * Move the Py_SetProgramName() call back to pymain_init_python(), just before _Py_InitializeCore(). * pathconfig_global_init() now also calls _PyMainInterpreterConfig_Read() to set program_name if it isn't set yet * Cleanup PyCalculatePath: pass main_config to subfunctions to get directly fields from main_config (home, module_search_path_env and program_name)
This commit is contained in:
parent
b64de46aae
commit
9ac3d88827
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@ -117,10 +117,7 @@ extern "C" {
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typedef struct {
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wchar_t *path_env; /* PATH environment variable */
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wchar_t *home; /* PYTHONHOME environment variable */
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wchar_t *module_search_path_env; /* PYTHONPATH environment variable */
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wchar_t *program_name; /* Program name */
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wchar_t *pythonpath; /* PYTHONPATH define */
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wchar_t *prefix; /* PREFIX define */
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wchar_t *exec_prefix; /* EXEC_PREFIX define */
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@ -360,14 +357,15 @@ find_env_config_value(FILE * env_file, const wchar_t * key, wchar_t * value)
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bytes long.
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*/
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static int
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search_for_prefix(PyCalculatePath *calculate, wchar_t *prefix)
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search_for_prefix(const _PyMainInterpreterConfig *main_config,
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PyCalculatePath *calculate, wchar_t *prefix)
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{
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size_t n;
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wchar_t *vpath;
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/* If PYTHONHOME is set, we believe it unconditionally */
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if (calculate->home) {
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wcsncpy(prefix, calculate->home, MAXPATHLEN);
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if (main_config->home) {
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wcsncpy(prefix, main_config->home, MAXPATHLEN);
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prefix[MAXPATHLEN] = L'\0';
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wchar_t *delim = wcschr(prefix, DELIM);
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if (delim) {
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@ -426,9 +424,10 @@ search_for_prefix(PyCalculatePath *calculate, wchar_t *prefix)
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static void
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calculate_prefix(PyCalculatePath *calculate, wchar_t *prefix)
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calculate_prefix(const _PyMainInterpreterConfig *main_config,
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PyCalculatePath *calculate, wchar_t *prefix)
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{
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calculate->prefix_found = search_for_prefix(calculate, prefix);
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calculate->prefix_found = search_for_prefix(main_config, calculate, prefix);
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if (!calculate->prefix_found) {
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if (!Py_FrozenFlag) {
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fprintf(stderr,
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@ -470,18 +469,19 @@ calculate_reduce_prefix(PyCalculatePath *calculate, wchar_t *prefix)
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MAXPATHLEN bytes long.
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*/
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static int
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search_for_exec_prefix(PyCalculatePath *calculate, wchar_t *exec_prefix)
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search_for_exec_prefix(const _PyMainInterpreterConfig *main_config,
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PyCalculatePath *calculate, wchar_t *exec_prefix)
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{
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size_t n;
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/* If PYTHONHOME is set, we believe it unconditionally */
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if (calculate->home) {
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wchar_t *delim = wcschr(calculate->home, DELIM);
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if (main_config->home) {
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wchar_t *delim = wcschr(main_config->home, DELIM);
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if (delim) {
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wcsncpy(exec_prefix, delim+1, MAXPATHLEN);
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}
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else {
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wcsncpy(exec_prefix, calculate->home, MAXPATHLEN);
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wcsncpy(exec_prefix, main_config->home, MAXPATHLEN);
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}
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exec_prefix[MAXPATHLEN] = L'\0';
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joinpath(exec_prefix, calculate->lib_python);
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@ -552,9 +552,12 @@ search_for_exec_prefix(PyCalculatePath *calculate, wchar_t *exec_prefix)
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static void
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calculate_exec_prefix(PyCalculatePath *calculate, wchar_t *exec_prefix)
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calculate_exec_prefix(const _PyMainInterpreterConfig *main_config,
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PyCalculatePath *calculate, wchar_t *exec_prefix)
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{
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calculate->exec_prefix_found = search_for_exec_prefix(calculate, exec_prefix);
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calculate->exec_prefix_found = search_for_exec_prefix(main_config,
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calculate,
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exec_prefix);
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if (!calculate->exec_prefix_found) {
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if (!Py_FrozenFlag) {
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fprintf(stderr,
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@ -585,7 +588,8 @@ calculate_reduce_exec_prefix(PyCalculatePath *calculate, wchar_t *exec_prefix)
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static _PyInitError
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calculate_program_full_path(PyCalculatePath *calculate, _PyPathConfig *config)
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calculate_program_full_path(const _PyMainInterpreterConfig *main_config,
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PyCalculatePath *calculate, _PyPathConfig *config)
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{
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wchar_t program_full_path[MAXPATHLEN+1];
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memset(program_full_path, 0, sizeof(program_full_path));
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@ -604,8 +608,8 @@ calculate_program_full_path(PyCalculatePath *calculate, _PyPathConfig *config)
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* other way to find a directory to start the search from. If
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* $PATH isn't exported, you lose.
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*/
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if (wcschr(calculate->program_name, SEP)) {
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wcsncpy(program_full_path, calculate->program_name, MAXPATHLEN);
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if (wcschr(main_config->program_name, SEP)) {
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wcsncpy(program_full_path, main_config->program_name, MAXPATHLEN);
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}
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#ifdef __APPLE__
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/* On Mac OS X, if a script uses an interpreter of the form
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@ -645,7 +649,7 @@ calculate_program_full_path(PyCalculatePath *calculate, _PyPathConfig *config)
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wcsncpy(program_full_path, path, MAXPATHLEN);
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}
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joinpath(program_full_path, calculate->program_name);
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joinpath(program_full_path, main_config->program_name);
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if (isxfile(program_full_path)) {
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break;
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}
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@ -810,14 +814,15 @@ calculate_zip_path(PyCalculatePath *calculate, const wchar_t *prefix)
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static _PyInitError
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calculate_module_search_path(PyCalculatePath *calculate,
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calculate_module_search_path(const _PyMainInterpreterConfig *main_config,
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PyCalculatePath *calculate,
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const wchar_t *prefix, const wchar_t *exec_prefix,
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_PyPathConfig *config)
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{
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/* Calculate size of return buffer */
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size_t bufsz = 0;
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if (calculate->module_search_path_env != NULL) {
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bufsz += wcslen(calculate->module_search_path_env) + 1;
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if (main_config->module_search_path_env != NULL) {
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bufsz += wcslen(main_config->module_search_path_env) + 1;
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}
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wchar_t *defpath = calculate->pythonpath;
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@ -851,8 +856,8 @@ calculate_module_search_path(PyCalculatePath *calculate,
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buf[0] = '\0';
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/* Run-time value of $PYTHONPATH goes first */
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if (calculate->module_search_path_env) {
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wcscpy(buf, calculate->module_search_path_env);
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if (main_config->module_search_path_env) {
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wcscpy(buf, main_config->module_search_path_env);
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wcscat(buf, delimiter);
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}
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@ -903,10 +908,6 @@ static _PyInitError
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calculate_init(PyCalculatePath *calculate,
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const _PyMainInterpreterConfig *main_config)
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{
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calculate->home = main_config->home;
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calculate->module_search_path_env = main_config->module_search_path_env;
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calculate->program_name = main_config->program_name;
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size_t len;
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char *path = getenv("PATH");
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if (path) {
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@ -948,9 +949,12 @@ calculate_free(PyCalculatePath *calculate)
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static _PyInitError
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calculate_path_impl(PyCalculatePath *calculate, _PyPathConfig *config)
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calculate_path_impl(const _PyMainInterpreterConfig *main_config,
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PyCalculatePath *calculate, _PyPathConfig *config)
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{
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_PyInitError err = calculate_program_full_path(calculate, config);
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_PyInitError err;
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err = calculate_program_full_path(main_config, calculate, config);
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if (_Py_INIT_FAILED(err)) {
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return err;
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}
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@ -964,13 +968,13 @@ calculate_path_impl(PyCalculatePath *calculate, _PyPathConfig *config)
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wchar_t prefix[MAXPATHLEN+1];
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memset(prefix, 0, sizeof(prefix));
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calculate_prefix(calculate, prefix);
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calculate_prefix(main_config, calculate, prefix);
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calculate_zip_path(calculate, prefix);
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wchar_t exec_prefix[MAXPATHLEN+1];
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memset(exec_prefix, 0, sizeof(exec_prefix));
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calculate_exec_prefix(calculate, exec_prefix);
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calculate_exec_prefix(main_config, calculate, exec_prefix);
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if ((!calculate->prefix_found || !calculate->exec_prefix_found) &&
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!Py_FrozenFlag)
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@ -979,8 +983,8 @@ calculate_path_impl(PyCalculatePath *calculate, _PyPathConfig *config)
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"Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]\n");
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}
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err = calculate_module_search_path(calculate, prefix, exec_prefix,
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config);
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err = calculate_module_search_path(main_config, calculate,
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prefix, exec_prefix, config);
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if (_Py_INIT_FAILED(err)) {
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return err;
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}
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@ -1041,7 +1045,7 @@ _PyPathConfig_Init(const _PyMainInterpreterConfig *main_config)
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_PyPathConfig new_path_config;
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memset(&new_path_config, 0, sizeof(new_path_config));
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err = calculate_path_impl(&calculate, &new_path_config);
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err = calculate_path_impl(main_config, &calculate, &new_path_config);
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if (_Py_INIT_FAILED(err)) {
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pathconfig_clear(&new_path_config);
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goto done;
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@ -1068,14 +1072,26 @@ pathconfig_global_init(void)
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_PyMainInterpreterConfig config = _PyMainInterpreterConfig_INIT;
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err = _PyMainInterpreterConfig_ReadEnv(&config);
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if (!_Py_INIT_FAILED(err)) {
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err = _PyPathConfig_Init(&config);
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}
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_PyMainInterpreterConfig_Clear(&config);
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if (_Py_INIT_FAILED(err)) {
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_Py_FatalInitError(err);
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goto error;
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}
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err = _PyMainInterpreterConfig_Read(&config);
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if (_Py_INIT_FAILED(err)) {
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goto error;
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}
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err = _PyPathConfig_Init(&config);
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if (_Py_INIT_FAILED(err)) {
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goto error;
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}
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_PyMainInterpreterConfig_Clear(&config);
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return;
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error:
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_PyMainInterpreterConfig_Clear(&config);
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_Py_FatalInitError(err);
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}
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@ -412,7 +412,6 @@ typedef struct {
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/* non-zero if filename, command (-c) or module (-m) is set
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on the command line */
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int run_code;
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wchar_t *program_name;
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/* Error message if a function failed */
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_PyInitError err;
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/* PYTHONWARNINGS env var */
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.config = _PyMainInterpreterConfig_INIT, \
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.main_importer_path = NULL, \
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.run_code = -1, \
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.program_name = NULL, \
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.err = _Py_INIT_OK(), \
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.env_warning_options = {0, NULL}}
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pymain_optlist_clear(&pymain->env_warning_options);
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Py_CLEAR(pymain->main_importer_path);
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PyMem_RawFree(pymain->program_name);
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_PyMainInterpreterConfig_Clear(&pymain->config);
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/* Get the program name: use PYTHONEXECUTABLE and __PYVENV_LAUNCHER__
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environment variables on macOS if available, use argv[0] by default.
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Return 0 on success.
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Set pymain->err and return -1 on error. */
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static int
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pymain_get_program_name(_PyMain *pymain)
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environment variables on macOS if available. */
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static _PyInitError
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config_get_program_name(_PyMainInterpreterConfig *config)
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{
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assert(pymain->program_name == NULL);
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assert(config->program_name == NULL);
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#ifdef __APPLE__
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char *p;
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/* On MacOS X, when the Python interpreter is embedded in an
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@ -899,12 +893,11 @@ pymain_get_program_name(_PyMain *pymain)
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buffer = PyMem_RawMalloc(len * sizeof(wchar_t));
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if (buffer == NULL) {
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pymain->err = _Py_INIT_NO_MEMORY();
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return -1;
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return _Py_INIT_NO_MEMORY();
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}
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mbstowcs(buffer, p, len);
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pymain->program_name = buffer;
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pymain->config.program_name = buffer;
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}
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#ifdef WITH_NEXT_FRAMEWORK
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else {
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@ -916,19 +909,26 @@ pymain_get_program_name(_PyMain *pymain)
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size_t len;
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wchar_t* wbuf = Py_DecodeLocale(pyvenv_launcher, &len);
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if (wbuf == NULL) {
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SET_DECODE_ERROR("__PYVENV_LAUNCHER__", len);
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return -1;
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return SET_DECODE_ERROR("__PYVENV_LAUNCHER__", len);
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}
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pymain->program_name = wbuf;
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pymain->config.program_name = wbuf;
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}
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}
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#endif /* WITH_NEXT_FRAMEWORK */
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#endif /* __APPLE__ */
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return _Py_INIT_OK();
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}
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if (pymain->program_name == NULL) {
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/* If config_get_program_name() found no program name: use argv[0] by default.
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Return 0 on success. Set pymain->err and return -1 on error. */
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static int
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pymain_get_program_name(_PyMain *pymain)
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{
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if (pymain->config.program_name == NULL) {
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/* Use argv[0] by default */
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pymain->program_name = pymain_wstrdup(pymain, pymain->argv[0]);
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if (pymain->program_name == NULL) {
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pymain->config.program_name = pymain_wstrdup(pymain, pymain->argv[0]);
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if (pymain->config.program_name == NULL) {
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return -1;
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}
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}
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@ -1451,11 +1451,9 @@ _PyMainInterpreterConfig_ReadEnv(_PyMainInterpreterConfig *config)
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return err;
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}
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/* FIXME: _PyMainInterpreterConfig_Read() has the same code. Remove it
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here? See also pymain_get_program_name() and pymain_parse_envvars(). */
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config->program_name = _PyMem_RawWcsdup(Py_GetProgramName());
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if (config->program_name == NULL) {
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return _Py_INIT_NO_MEMORY();
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err = config_get_program_name(config);
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if (_Py_INIT_FAILED(err)) {
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return err;
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}
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return _Py_INIT_OK();
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@ -1481,25 +1479,17 @@ pymain_parse_envvars(_PyMain *pymain)
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if (pymain_warnings_envvar(pymain) < 0) {
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return -1;
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}
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if (pymain_get_program_name(pymain) < 0) {
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return -1;
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}
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core_config->allocator = Py_GETENV("PYTHONMALLOC");
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/* FIXME: move pymain_get_program_name() code into
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_PyMainInterpreterConfig_ReadEnv().
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Problem: _PyMainInterpreterConfig_ReadEnv() doesn't have access
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to argv[0]. */
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Py_SetProgramName(pymain->program_name);
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/* Don't free program_name here: the argument to Py_SetProgramName
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must remain valid until Py_FinalizeEx is called. The string is freed
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by pymain_free(). */
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_PyInitError err = _PyMainInterpreterConfig_ReadEnv(&pymain->config);
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if (_Py_INIT_FAILED(pymain->err)) {
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pymain->err = err;
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return -1;
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}
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if (pymain_get_program_name(pymain) < 0) {
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return -1;
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}
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core_config->allocator = Py_GETENV("PYTHONMALLOC");
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/* -X options */
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if (pymain_get_xoption(pymain, L"showrefcount")) {
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@ -1578,6 +1568,11 @@ pymain_init_python(_PyMain *pymain)
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{
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pymain_init_stdio(pymain);
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Py_SetProgramName(pymain->config.program_name);
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/* Don't free program_name here: the argument to Py_SetProgramName
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must remain valid until Py_FinalizeEx is called. The string is freed
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by pymain_free(). */
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pymain->err = _Py_InitializeCore(&pymain->core_config);
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if (_Py_INIT_FAILED(pymain->err)) {
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return -1;
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|
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@ -118,7 +118,6 @@
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#endif
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typedef struct {
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wchar_t *module_search_path_env; /* PYTHONPATH environment variable */
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wchar_t *path_env; /* PATH environment variable */
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wchar_t *home; /* PYTHONHOME environment variable */
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@ -126,7 +125,6 @@ typedef struct {
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wchar_t *machine_path; /* from HKEY_LOCAL_MACHINE */
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wchar_t *user_path; /* from HKEY_CURRENT_USER */
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wchar_t *program_name; /* Program name */
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wchar_t argv0_path[MAXPATHLEN+1];
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wchar_t zip_path[MAXPATHLEN+1];
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} PyCalculatePath;
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|
@ -503,7 +501,8 @@ get_dll_path(PyCalculatePath *calculate, _PyPathConfig *config)
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|
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static _PyInitError
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get_program_full_path(PyCalculatePath *calculate, _PyPathConfig *config)
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get_program_full_path(const _PyMainInterpreterConfig *main_config,
|
||||
PyCalculatePath *calculate, _PyPathConfig *config)
|
||||
{
|
||||
wchar_t program_full_path[MAXPATHLEN+1];
|
||||
memset(program_full_path, 0, sizeof(program_full_path));
|
||||
|
@ -518,12 +517,13 @@ get_program_full_path(PyCalculatePath *calculate, _PyPathConfig *config)
|
|||
* $PATH isn't exported, you lose.
|
||||
*/
|
||||
#ifdef ALTSEP
|
||||
if (wcschr(calculate->program_name, SEP) || wcschr(calculate->program_name, ALTSEP))
|
||||
if (wcschr(main_config->program_name, SEP) ||
|
||||
wcschr(main_config->program_name, ALTSEP))
|
||||
#else
|
||||
if (wcschr(calculate->program_name, SEP))
|
||||
if (wcschr(main_config->program_name, SEP))
|
||||
#endif
|
||||
{
|
||||
wcsncpy(program_full_path, calculate->program_name, MAXPATHLEN);
|
||||
wcsncpy(program_full_path, main_config->program_name, MAXPATHLEN);
|
||||
}
|
||||
else if (calculate->path_env) {
|
||||
wchar_t *path = calculate->path_env;
|
||||
|
@ -542,7 +542,7 @@ get_program_full_path(PyCalculatePath *calculate, _PyPathConfig *config)
|
|||
}
|
||||
|
||||
/* join() is safe for MAXPATHLEN+1 size buffer */
|
||||
join(program_full_path, calculate->program_name);
|
||||
join(program_full_path, main_config->program_name);
|
||||
if (exists(program_full_path)) {
|
||||
break;
|
||||
}
|
||||
|
@ -713,9 +713,6 @@ calculate_init(PyCalculatePath *calculate,
|
|||
const _PyMainInterpreterConfig *main_config)
|
||||
{
|
||||
calculate->home = main_config->home;
|
||||
calculate->module_search_path_env = main_config->module_search_path_env;
|
||||
calculate->program_name = main_config->program_name;
|
||||
|
||||
calculate->path_env = _wgetenv(L"PATH");
|
||||
}
|
||||
|
||||
|
@ -815,7 +812,9 @@ calculate_home_prefix(PyCalculatePath *calculate, wchar_t *prefix)
|
|||
|
||||
|
||||
static _PyInitError
|
||||
calculate_module_search_path(PyCalculatePath *calculate, _PyPathConfig *config, wchar_t *prefix)
|
||||
calculate_module_search_path(const _PyMainInterpreterConfig *main_config,
|
||||
PyCalculatePath *calculate, _PyPathConfig *config,
|
||||
wchar_t *prefix)
|
||||
{
|
||||
int skiphome = calculate->home==NULL ? 0 : 1;
|
||||
#ifdef Py_ENABLE_SHARED
|
||||
|
@ -824,7 +823,7 @@ calculate_module_search_path(PyCalculatePath *calculate, _PyPathConfig *config,
|
|||
#endif
|
||||
/* We only use the default relative PYTHONPATH if we haven't
|
||||
anything better to use! */
|
||||
int skipdefault = (calculate->module_search_path_env!=NULL || calculate->home!=NULL || \
|
||||
int skipdefault = (main_config->module_search_path_env!=NULL || calculate->home!=NULL || \
|
||||
calculate->machine_path!=NULL || calculate->user_path!=NULL);
|
||||
|
||||
/* We need to construct a path from the following parts.
|
||||
|
@ -861,8 +860,8 @@ calculate_module_search_path(PyCalculatePath *calculate, _PyPathConfig *config,
|
|||
bufsz += wcslen(calculate->machine_path) + 1;
|
||||
}
|
||||
bufsz += wcslen(calculate->zip_path) + 1;
|
||||
if (calculate->module_search_path_env != NULL) {
|
||||
bufsz += wcslen(calculate->module_search_path_env) + 1;
|
||||
if (main_config->module_search_path_env != NULL) {
|
||||
bufsz += wcslen(main_config->module_search_path_env) + 1;
|
||||
}
|
||||
|
||||
wchar_t *buf, *start_buf;
|
||||
|
@ -870,9 +869,9 @@ calculate_module_search_path(PyCalculatePath *calculate, _PyPathConfig *config,
|
|||
if (buf == NULL) {
|
||||
/* We can't exit, so print a warning and limp along */
|
||||
fprintf(stderr, "Can't malloc dynamic PYTHONPATH.\n");
|
||||
if (calculate->module_search_path_env) {
|
||||
if (main_config->module_search_path_env) {
|
||||
fprintf(stderr, "Using environment $PYTHONPATH.\n");
|
||||
config->module_search_path = calculate->module_search_path_env;
|
||||
config->module_search_path = main_config->module_search_path_env;
|
||||
}
|
||||
else {
|
||||
fprintf(stderr, "Using default static path.\n");
|
||||
|
@ -882,8 +881,8 @@ calculate_module_search_path(PyCalculatePath *calculate, _PyPathConfig *config,
|
|||
}
|
||||
start_buf = buf;
|
||||
|
||||
if (calculate->module_search_path_env) {
|
||||
if (wcscpy_s(buf, bufsz - (buf - start_buf), calculate->module_search_path_env)) {
|
||||
if (main_config->module_search_path_env) {
|
||||
if (wcscpy_s(buf, bufsz - (buf - start_buf), main_config->module_search_path_env)) {
|
||||
return INIT_ERR_BUFFER_OVERFLOW();
|
||||
}
|
||||
buf = wcschr(buf, L'\0');
|
||||
|
@ -996,8 +995,8 @@ calculate_module_search_path(PyCalculatePath *calculate, _PyPathConfig *config,
|
|||
|
||||
|
||||
static _PyInitError
|
||||
calculate_path_impl(PyCalculatePath *calculate, _PyPathConfig *config,
|
||||
const _PyMainInterpreterConfig *main_config)
|
||||
calculate_path_impl(const _PyMainInterpreterConfig *main_config,
|
||||
PyCalculatePath *calculate, _PyPathConfig *config)
|
||||
{
|
||||
_PyInitError err;
|
||||
|
||||
|
@ -1006,7 +1005,7 @@ calculate_path_impl(PyCalculatePath *calculate, _PyPathConfig *config,
|
|||
return err;
|
||||
}
|
||||
|
||||
err = get_program_full_path(calculate, config);
|
||||
err = get_program_full_path(main_config, calculate, config);
|
||||
if (_Py_INIT_FAILED(err)) {
|
||||
return err;
|
||||
}
|
||||
|
@ -1032,7 +1031,7 @@ calculate_path_impl(PyCalculatePath *calculate, _PyPathConfig *config,
|
|||
|
||||
calculate_home_prefix(calculate, prefix);
|
||||
|
||||
err = calculate_module_search_path(calculate, config, prefix);
|
||||
err = calculate_module_search_path(main_config, calculate, config, prefix);
|
||||
if (_Py_INIT_FAILED(err)) {
|
||||
return err;
|
||||
}
|
||||
|
@ -1092,7 +1091,7 @@ _PyPathConfig_Init(const _PyMainInterpreterConfig *main_config)
|
|||
_PyPathConfig new_path_config;
|
||||
memset(&new_path_config, 0, sizeof(new_path_config));
|
||||
|
||||
err = calculate_path_impl(&calculate, &new_path_config, main_config);
|
||||
err = calculate_path_impl(main_config, &calculate, &new_path_config);
|
||||
if (_Py_INIT_FAILED(err)) {
|
||||
goto done;
|
||||
}
|
||||
|
@ -1121,14 +1120,26 @@ pathconfig_global_init(void)
|
|||
_PyMainInterpreterConfig config = _PyMainInterpreterConfig_INIT;
|
||||
|
||||
err = _PyMainInterpreterConfig_ReadEnv(&config);
|
||||
if (!_Py_INIT_FAILED(err)) {
|
||||
err = _PyPathConfig_Init(&config);
|
||||
}
|
||||
_PyMainInterpreterConfig_Clear(&config);
|
||||
|
||||
if (_Py_INIT_FAILED(err)) {
|
||||
_Py_FatalInitError(err);
|
||||
goto error;
|
||||
}
|
||||
|
||||
err = _PyMainInterpreterConfig_Read(&config);
|
||||
if (_Py_INIT_FAILED(err)) {
|
||||
goto error;
|
||||
}
|
||||
|
||||
err = _PyPathConfig_Init(&config);
|
||||
if (_Py_INIT_FAILED(err)) {
|
||||
goto error;
|
||||
}
|
||||
|
||||
_PyMainInterpreterConfig_Clear(&config);
|
||||
return;
|
||||
|
||||
error:
|
||||
_PyMainInterpreterConfig_Clear(&config);
|
||||
_Py_FatalInitError(err);
|
||||
}
|
||||
|
||||
|
||||
|
|
Loading…
Reference in New Issue