Linux standalone builds put the bundled ssh last in PATH, so any system ssh will be preferred over it.

This commit was sponsored by Denis Dzyubenko on Patreon.

Build/BundledPrograms.hs

@@ -31,6 +31,16 @@ extraBundledPrograms = catMaybes
 	[ SysConfig.gpg
 #else
 	[
+#endif
+#ifndef darwin_HOST_OS
+#ifndef mingw32_HOST_OS
+	-- OS X has ssh installed by default.
+	-- On Windows, git provides ssh.
+	-- Linux probably has ssh installed system wide,
+	-- and if so the user probably wants to use that one.
+	, Just "ssh"
+	, Just "ssh-keygen"
+#endif
 #endif
 	]
 
@@ -57,15 +67,6 @@ preferredBundledPrograms = catMaybes
 	, Just "xargs"
 #endif
 	, Just "rsync"
-#ifndef darwin_HOST_OS
-#ifndef mingw32_HOST_OS
-	-- OS X has ssh installed by default.
-	-- Linux probably has ssh, but not guaranteed.
-	-- On Windows, git provides ssh.
-	, Just "ssh"
-	, Just "ssh-keygen"
-#endif
-#endif
 #ifndef mingw32_HOST_OS
 	, Just "sh"
 #endif

CHANGELOG

@@ -3,6 +3,8 @@ git-annex (6.20170301.2) UNRELEASED; urgency=medium
   * Bugfix: Passing a command a filename that does not exist sometimes
     did not display an error, when a path to a directory was also passed.
   * status: Propigate nonzero exit code from git status.
+  * Linux standalone builds put the bundled ssh last in PATH,
+    so any system ssh will be preferred over it.
 
  -- Joey Hess <id@joeyh.name>  Thu, 02 Mar 2017 12:51:40 -0400
 

doc/bugs/configuration_options_for_system_ssh_and_bundled_ssh_are_incompatible.mdwn

@@ -51,3 +51,4 @@ git-annex: sync: 2 failed
 ### Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)
 
 
+> [[done]]; moved ssh to extra directory. --[[Joey]]

doc/bugs/configuration_options_for_system_ssh_and_bundled_ssh_are_incompatible/comment_1_abdd5622dc1733a8b59dc11885083799._comment

@@ -0,0 +1,20 @@
+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 1"""
+ date="2017-03-02T21:30:55Z"
+ content="""
+One way to deal with this would be to put the bundled ssh in the
+git-annex.linux/extra/ directory. Programs in that directory are added to the
+end of the path, so that system versions will be preferred when available.
+
+That was earlier done for gpg and didn't cause any problems.
+
+There is the potential for some sort of versioning problem. Currently the
+only thing git-annex probes about the bundled ssh is if it supports
+connection caching. That's quite an old feature by now, so a system ssh not
+supporting it would either be super out of date and insecure openssh, or
+perhaps some other ssh implementation.
+
+Seems worth moving the bundled ssh to the extra directory, and see what
+breaks..
+"""]]