MinGW readdir reimplementation to support d_type

diff --git a/compat/mingw.c b/compat/mingw.c
index cdeda1d9859fd545950e0c39ee7de3c9dc09bb07..bed417875e1344690977fd6aa41b955f127b74b4 100644 (file)
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1,5 +1,6 @@
 #include "../git-compat-util.h"
 #include "win32.h"
+#include <conio.h>
 #include "../strbuf.h"
 
 unsigned int _CRT_fmode = _O_BINARY;
@@ -525,8 +526,8 @@ static const char *parse_interpreter(const char *cmd)
        if (buf[0] != '#' || buf[1] != '!')
                return NULL;
        buf[n] = '\0';
-       p = strchr(buf, '\n');
-       if (!p)
+       p = buf + strcspn(buf, "\r\n");
+       if (!*p)
                return NULL;
 
        *p = '\0';
@@ -1156,3 +1157,77 @@ int link(const char *oldpath, const char *newpath)
        }
        return 0;
 }
+
+char *getpass(const char *prompt)
+{
+       struct strbuf buf = STRBUF_INIT;
+
+       fputs(prompt, stderr);
+       for (;;) {
+               char c = _getch();
+               if (c == '\r' || c == '\n')
+                       break;
+               strbuf_addch(&buf, c);
+       }
+       fputs("\n", stderr);
+       return strbuf_detach(&buf, NULL);
+}
+
+#ifndef NO_MINGW_REPLACE_READDIR
+/* MinGW readdir implementation to avoid extra lstats for Git */
+struct mingw_DIR
+{
+       struct _finddata_t      dd_dta;         /* disk transfer area for this dir */
+       struct mingw_dirent     dd_dir;         /* Our own implementation, including d_type */
+       long                    dd_handle;      /* _findnext handle */
+       int                     dd_stat;        /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
+       char                    dd_name[1];     /* given path for dir with search pattern (struct is extended) */
+};
+
+struct dirent *mingw_readdir(DIR *dir)
+{
+       WIN32_FIND_DATAA buf;
+       HANDLE handle;
+       struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
+
+       if (!dir->dd_handle) {
+               errno = EBADF; /* No set_errno for mingw */
+               return NULL;
+       }
+
+       if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0)
+       {
+               handle = FindFirstFileA(dir->dd_name, &buf);
+               DWORD lasterr = GetLastError();
+               dir->dd_handle = (long)handle;
+               if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) {
+                       errno = err_win_to_posix(lasterr);
+                       return NULL;
+               }
+       } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) {
+               return NULL;
+       } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) {
+               DWORD lasterr = GetLastError();
+               FindClose((HANDLE)dir->dd_handle);
+               dir->dd_handle = (long)INVALID_HANDLE_VALUE;
+               /* POSIX says you shouldn't set errno when readdir can't
+                  find any more files; so, if another error we leave it set. */
+               if (lasterr != ERROR_NO_MORE_FILES)
+                       errno = err_win_to_posix(lasterr);
+               return NULL;
+       }
+
+       /* We get here if `buf' contains valid data.  */
+       strcpy(dir->dd_dir.d_name, buf.cFileName);
+       ++dir->dd_stat;
+
+       /* Set file type, based on WIN32_FIND_DATA */
+       mdir->dd_dir.d_type = 0;
+       if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+               mdir->dd_dir.d_type |= DT_DIR;
+       else
+               mdir->dd_dir.d_type |= DT_REG;
+
+       return (struct dirent*)&dir->dd_dir;
+}
+#endif // !NO_MINGW_REPLACE_READDIR