enforce a minimum version of pg_dump

We need pg_dump and pg_dumpall of version 8.4
orgrim · Nov 2, 2021 · d61b0b0 · d61b0b0
1 parent 2d082e9
commit d61b0b0
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -46,6 +46,11 @@ in the current directory:
 docker run --rm -v "$PWD":/go/bin golang:1.16 go get github.com/orgrim/pg_back
 ```
 
+## Minimum versions
+
+The minimum version of `pg_dump` et `pg_dumpall` required to dump is 8.4. The
+oldest tested server version of PostgreSQL is 8.2.
+
 ## Usage
 
 Use the `--help` or `-?` to print the list of available options. To dump all

diff --git a/main.go b/main.go
@@ -153,7 +153,12 @@ func main() {
 		binDir = opts.BinDirectory
 	}
 
+	// Ensure that pg_dump accepts the options we will give it
 	pgDumpVersion := pgToolVersion("pg_dump")
+	if pgDumpVersion < 80400 {
+		l.Fatalln("provided pg_dump is older than 8.4, unable use it.")
+		os.Exit(1)
+	}
 
 	// Parse the connection information
 	l.Verboseln("processing input connection parameters")