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Minor fixes to pg_combinebackup and its documentation.

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The --tablespace-mapping option was specified with required_argument
rather than no_argument, which is wrong. Since the actual argument
string passed to getopt_long() included "T:", the single-character
form of the option still worked, but the long form did not. Repair.

The call to getopt_long() erroneously included "P", which doesn't
correspond to any supported option. Remove.

The help message used "do not" in one place and "don't" in another.
Standardize on "do not".

The documentation erroneously stated that the tablespace mappings
would be applied relative to the pathnames in the first backup
specified on the command line, rather than the final one. Fix.

Thanks to Tomas Vondra and Daniel Gustafsson for alerting me to
these mistakes.

Discussion: http://postgr.es/m/CA+TgmoYFznwwaZhHSF1Ze7JeyBv-1yOoSrucKMw37WpF=7RP8g@mail.gmail.com
This commit is contained in:
Robert Haas 2024-04-26 08:42:42 -04:00
parent 205db0114e
commit 1713e3d6cd
2 changed files with 4 additions and 4 deletions
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2
doc/src/sgml/ref/pg_combinebackup.sgml
View File

@ -128,7 +128,7 @@ PostgreSQL documentation
Relocates the tablespace in directory <replaceable>olddir</replaceable>
to <replaceable>newdir</replaceable> during the backup.
<replaceable>olddir</replaceable> is the absolute path of the tablespace
as it exists in the first backup specified on the command line,
as it exists in the final backup specified on the command line,
and <replaceable>newdir</replaceable> is the absolute path to use for the
tablespace in the reconstructed backup. If either path needs to contain
an equal sign (<literal>=</literal>), precede that with a backslash.

6
src/bin/pg_combinebackup/pg_combinebackup.c
View File

@ -126,7 +126,7 @@ main(int argc, char *argv[])
{"dry-run", no_argument, NULL, 'n'},
{"no-sync", no_argument, NULL, 'N'},
{"output", required_argument, NULL, 'o'},
{"tablespace-mapping", no_argument, NULL, 'T'},
{"tablespace-mapping", required_argument, NULL, 'T'},
{"manifest-checksums", required_argument, NULL, 1},
{"no-manifest", no_argument, NULL, 2},
{"sync-method", required_argument, NULL, 3},
@ -163,7 +163,7 @@ main(int argc, char *argv[])
opt.copy_method = COPY_METHOD_COPY;
/* process command-line options */
while ((c = getopt_long(argc, argv, "dnNPo:T:",
while ((c = getopt_long(argc, argv, "dnNo:T:",
long_options, &optindex)) != -1)
{
switch (c)
@ -749,7 +749,7 @@ help(const char *progname)
printf(_(" %s [OPTION]... DIRECTORY...\n"), progname);
printf(_("\nOptions:\n"));
printf(_(" -d, --debug generate lots of debugging output\n"));
printf(_(" -n, --dry-run don't actually do anything\n"));
printf(_(" -n, --dry-run do not actually do anything\n"));
printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
printf(_(" -o, --output output directory\n"));
printf(_(" -T, --tablespace-mapping=OLDDIR=NEWDIR\n"