Line data    Source code

       1              : /*-------------------------------------------------------------------------
       2              :  *
       3              :  * archive.c
       4              :  *    Common WAL archive routines
       5              :  *
       6              :  * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
       7              :  * Portions Copyright (c) 1994, Regents of the University of California
       8              :  *
       9              :  *
      10              :  * IDENTIFICATION
      11              :  *    src/common/archive.c
      12              :  *
      13              :  *-------------------------------------------------------------------------
      14              :  */
      15              : 
      16              : #ifndef FRONTEND
      17              : #include "postgres.h"
      18              : #else
      19              : #include "postgres_fe.h"
      20              : #endif
      21              : 
      22              : #include "common/archive.h"
      23              : #include "common/percentrepl.h"
      24              : 
      25              : /*
      26              :  * BuildRestoreCommand
      27              :  *
      28              :  * Builds a restore command to retrieve a file from WAL archives, replacing
      29              :  * the supported aliases with values supplied by the caller as defined by
      30              :  * the GUC parameter restore_command: xlogpath for %p, xlogfname for %f and
      31              :  * lastRestartPointFname for %r.
      32              :  *
      33              :  * The result is a palloc'd string for the restore command built.  The
      34              :  * caller is responsible for freeing it.  If any of the required arguments
      35              :  * is NULL and that the corresponding alias is found in the command given
      36              :  * by the caller, then an error is thrown.
      37              :  */
      38              : char *
      39          513 : BuildRestoreCommand(const char *restoreCommand,
      40              :                     const char *xlogpath,
      41              :                     const char *xlogfname,
      42              :                     const char *lastRestartPointFname)
      43              : {
      44          513 :     char       *nativePath = NULL;
      45              :     char       *result;
      46              : 
      47          513 :     if (xlogpath)
      48              :     {
      49          513 :         nativePath = pstrdup(xlogpath);
      50          513 :         make_native_path(nativePath);
      51              :     }
      52              : 
      53          513 :     result = replace_percent_placeholders(restoreCommand, "restore_command", "frp",
      54              :                                           xlogfname, lastRestartPointFname, nativePath);
      55              : 
      56          513 :     if (nativePath)
      57          513 :         pfree(nativePath);
      58              : 
      59          513 :     return result;
      60              : }