Line data    Source code

       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  * archive.c
       4             :  *    Common WAL archive routines
       5             :  *
       6             :  * Portions Copyright (c) 1996-2024, 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         344 : BuildRestoreCommand(const char *restoreCommand,
      40             :                     const char *xlogpath,
      41             :                     const char *xlogfname,
      42             :                     const char *lastRestartPointFname)
      43             : {
      44         344 :     char       *nativePath = NULL;
      45             :     char       *result;
      46             : 
      47         344 :     if (xlogpath)
      48             :     {
      49         344 :         nativePath = pstrdup(xlogpath);
      50         344 :         make_native_path(nativePath);
      51             :     }
      52             : 
      53         344 :     result = replace_percent_placeholders(restoreCommand, "restore_command", "frp",
      54             :                                           xlogfname, lastRestartPointFname, nativePath);
      55             : 
      56         344 :     if (nativePath)
      57         344 :         pfree(nativePath);
      58             : 
      59         344 :     return result;
      60             : }