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Blame SOURCES/0027-v2v-i-vmx-Use-scp-T-option-if-available-to-unbreak-s.patch

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From f36bb1b9c44cda46afa1a34522202a5319fd0a5a Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Thu, 25 Jul 2019 14:52:42 +0100
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Subject: [PATCH] v2v: -i vmx: Use scp -T option if available to unbreak scp
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 (RHBZ#1733168).
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Tested using:
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cd v2v
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LIBGUESTFS_BACKEND=direct ../run virt-v2v -i vmx -it ssh "ssh://localhost/$PWD/test-v2v-i-vmx-1.vmx" -o null -v -x
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and manually examining the debug output.
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Thanks: Ming Xie, Jakub Jelen.
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(cherry picked from commit 7692c31494f7b1d37e380eed9eb99c5952940dbf)
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---
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 v2v/input_vmx.ml | 8 +++++++-
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 1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/v2v/input_vmx.ml b/v2v/input_vmx.ml
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index b169b2537..e3469308d 100644
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--- a/v2v/input_vmx.ml
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+++ b/v2v/input_vmx.ml
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@@ -61,6 +61,11 @@ let server_of_uri { Xml.uri_server } =
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 let path_of_uri { Xml.uri_path } =
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   match uri_path with None -> assert false | Some p -> p
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+let scp_supports_T_option = lazy (
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+  let cmd = "LANG=C scp -T |& grep \"unknown option\"" in
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+  shell_command cmd <> 0
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+)
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+
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 (* 'scp' a remote file into a temporary local file, returning the path
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  * of the temporary local file.
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  *)
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@@ -68,8 +73,9 @@ let scp_from_remote_to_temporary uri tmpdir filename =
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   let localfile = tmpdir // filename in
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   let cmd =
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-    sprintf "scp%s%s %s%s:%s %s"
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+    sprintf "scp%s%s%s %s%s:%s %s"
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             (if verbose () then "" else " -q")
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+            (if Lazy.force scp_supports_T_option then " -T" else "")
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             (match port_of_uri uri with
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              | None -> ""
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              | Some port -> sprintf " -P %d" port)
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-- 
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2.18.4
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