fix: omitempty UnixFSShardingSizeThreshold

- applies fix from go-ipfs-config which removes null when default
- escapes JSON string when passed in sharness script

go.mod

@@ -30,7 +30,7 @@ require (
 	github.com/ipfs/go-ipfs-blockstore v0.1.6
 	github.com/ipfs/go-ipfs-chunker v0.0.5
 	github.com/ipfs/go-ipfs-cmds v0.6.0
-	github.com/ipfs/go-ipfs-config v0.16.1-0.20211025170559-871deacd5265
+	github.com/ipfs/go-ipfs-config v0.16.1-0.20211027214300-047a48592f2a
 	github.com/ipfs/go-ipfs-exchange-interface v0.0.1
 	github.com/ipfs/go-ipfs-exchange-offline v0.0.1
 	github.com/ipfs/go-ipfs-files v0.0.9

go.sum

@@ -469,8 +469,8 @@ github.com/ipfs/go-ipfs-chunker v0.0.5 h1:ojCf7HV/m+uS2vhUGWcogIIxiO5ubl5O57Q7Na
 github.com/ipfs/go-ipfs-chunker v0.0.5/go.mod h1:jhgdF8vxRHycr00k13FM8Y0E+6BoalYeobXmUyTreP8=
 github.com/ipfs/go-ipfs-cmds v0.6.0 h1:yAxdowQZzoFKjcLI08sXVNnqVj3jnABbf9smrPQmBsw=
 github.com/ipfs/go-ipfs-cmds v0.6.0/go.mod h1:ZgYiWVnCk43ChwoH8hAmI1IRbuVtq3GSTHwtRB/Kqhk=
-github.com/ipfs/go-ipfs-config v0.16.1-0.20211025170559-871deacd5265 h1:zq5LdAPSTtnurJNwwVab2xZr+dDE7e3riZ5zoWH5Rk4=
-github.com/ipfs/go-ipfs-config v0.16.1-0.20211025170559-871deacd5265/go.mod h1:wz2lKzOjgJeYJa6zx8W9VT7mz+iSd0laBMqS/9wmX6A=
+github.com/ipfs/go-ipfs-config v0.16.1-0.20211027214300-047a48592f2a h1:CFy3kjOvnGnLC5XofG91h5mM3CYIzeVjiUcQCqWfpl0=
+github.com/ipfs/go-ipfs-config v0.16.1-0.20211027214300-047a48592f2a/go.mod h1:wz2lKzOjgJeYJa6zx8W9VT7mz+iSd0laBMqS/9wmX6A=
 github.com/ipfs/go-ipfs-delay v0.0.0-20181109222059-70721b86a9a8/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=
 github.com/ipfs/go-ipfs-delay v0.0.1 h1:r/UXYyRcddO6thwOnhiznIAiSvxMECGgtv35Xs1IeRQ=
 github.com/ipfs/go-ipfs-delay v0.0.1/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=

test/sharness/t0250-files-api.sh

@@ -812,7 +812,7 @@ tests_for_files_api "with-daemon"
 test_kill_ipfs_daemon
 
 test_expect_success "enable sharding in config" '
-  ipfs config --json Internal.UnixFSShardingSizeThreshold "1B"
+  ipfs config --json Internal.UnixFSShardingSizeThreshold "\"1B\""
 '
 
 test_launch_ipfs_daemon_without_network

test/sharness/t0260-sharding.sh

@@ -41,7 +41,7 @@ test_add_large_dir "$UNSHARDED"
 test_kill_ipfs_daemon
 
 test_expect_success "enable sharding" '
-  ipfs config --json Internal.UnixFSShardingSizeThreshold "1B"
+  ipfs config --json Internal.UnixFSShardingSizeThreshold "\"1B\""
 '
 
 SHARDED="QmSCJD1KYLhVVHqBK3YyXuoEqHt7vggyJhzoFYbT8v1XYL"