Age         Owner                  TLA  Line data    Source code

                                  1                 : /*-------------------------------------------------------------------------
                                  2                 :  *
                                  3                 :  * archive.c
                                  4                 :  *    Common WAL archive routines
                                  5                 :  *
                                  6                 :  * Portions Copyright (c) 1996-2023, 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 *
   62 michael                    39 CBC         132 : BuildRestoreCommand(const char *restoreCommand,
                                 40                 :                     const char *xlogpath,
                                 41                 :                     const char *xlogfname,
                                 42                 :                     const char *lastRestartPointFname)
                                 43                 : {
   62 michael                    44 GNC         132 :     char       *nativePath = NULL;
                                 45                 :     char       *result;
                                 46                 : 
                                 47             132 :     if (xlogpath)
   62 michael                    48 ECB             :     {
   62 michael                    49 GNC         132 :         nativePath = pstrdup(xlogpath);
                                 50             132 :         make_native_path(nativePath);
                                 51                 :     }
                                 52                 : 
                                 53             132 :     result = replace_percent_placeholders(restoreCommand, "restore_command", "frp",
                                 54                 :                                           xlogfname, lastRestartPointFname, nativePath);
                                 55                 : 
                                 56             132 :     if (nativePath)
                                 57             132 :         pfree(nativePath);
                                 58                 : 
                                 59             132 :     return result;
                                 60                 : }