Move src/bin/pg_verifybackup/parse_manifest.c into src/common.

This makes it possible for the code to be easily reused by other
client-side tools, and/or by the server.

Patch by me. Review of this patch in particular by at least Peter
Eisentraut; reviewers for the patch series in general include Dilip
Kumar, Andres Fruend, David Steele, Álvaro Herrera, and Jakub Wartak.

Discussion: http://postgr.es/m/CA+TgmoZ6UGZVnSy5iak6s6+AXu_DewXovDjhLs3-su6nmU_x_g@mail.gmail.com

src/bin/pg_verifybackup/Makefile

@@ -21,7 +21,6 @@ LDFLAGS_INTERNAL += -L$(top_builddir)/src/fe_utils -lpgfeutils $(libpq_pgport)
 
 OBJS = \
 	$(WIN32RES) \
-	parse_manifest.o \
 	pg_verifybackup.o
 
 all: pg_verifybackup

src/bin/pg_verifybackup/meson.build

@@ -1,7 +1,6 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
 pg_verifybackup_sources = files(
-  'parse_manifest.c',
   'pg_verifybackup.c'
 )
 

src/bin/pg_verifybackup/nls.mk

@@ -1,10 +1,10 @@
 # src/bin/pg_verifybackup/nls.mk
 CATALOG_NAME     = pg_verifybackup
 GETTEXT_FILES    = $(FRONTEND_COMMON_GETTEXT_FILES) \
-                   parse_manifest.c \
                    pg_verifybackup.c \
                    ../../common/fe_memutils.c \
-                   ../../common/jsonapi.c
+                   ../../common/jsonapi.c \
+                   ../../common/parse_manifest.c
 GETTEXT_TRIGGERS = $(FRONTEND_COMMON_GETTEXT_TRIGGERS) \
                    json_manifest_parse_failure:2 \
                    error_cb:2 \

src/bin/pg_verifybackup/pg_verifybackup.c

@@ -20,9 +20,9 @@
 
 #include "common/hashfn.h"
 #include "common/logging.h"
+#include "common/parse_manifest.h"
 #include "fe_utils/simple_list.h"
 #include "getopt_long.h"
-#include "parse_manifest.h"
 #include "pgtime.h"
 
 /*

src/common/Makefile

@@ -66,6 +66,7 @@ OBJS_COMMON = \
 	kwlookup.o \
 	link-canary.o \
 	md5_common.o \
+	parse_manifest.o \
 	percentrepl.o \
 	pg_get_line.o \
 	pg_lzcompress.o \

src/common/meson.build

@@ -18,6 +18,7 @@ common_sources = files(
   'kwlookup.c',
   'link-canary.c',
   'md5_common.c',
+  'parse_manifest.c',
   'percentrepl.c',
   'pg_get_line.c',
   'pg_lzcompress.c',

src/common/parse_manifest.c

@@ -6,15 +6,15 @@
  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * src/bin/pg_verifybackup/parse_manifest.c
+ * src/common/parse_manifest.c
  *
  *-------------------------------------------------------------------------
  */
 
 #include "postgres_fe.h"
 
-#include "parse_manifest.h"
 #include "common/jsonapi.h"
+#include "common/parse_manifest.h"
 
 /*
  * Semantic states for JSON manifest parsing.

src/include/common/parse_manifest.h

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * src/bin/pg_verifybackup/parse_manifest.h
+ * src/include/common/parse_manifest.h
  *
  *-------------------------------------------------------------------------
  */