Merge lp:~jjo/bash-completion/quote_readline_by_ref_fixes into lp:ubuntu/trusty/bash-completion

[JuanJo Ciarlante]

[jjo, r=] fix _quote_readline_by_ref to:
- avoid escaping 1st '~' (lp: #1288314)
- avoid quoting if empty, else expansion without args only shows dirs (lp: #1288031)
- replace double escaping to single (eg for completing file/paths with spaces)

[Luke Yelavich (themuso)]

You forgot to include your patch file in your commit. I see quote_readline_by_ref_fixes.patch in debian/patches/series, but cannot find the file in the tree.

Please add the file.

Thanks for your work.

review: Needs Fixing

[lp:~jjo/bash-completion/quote_readline_by_ref_fixes]

47. By JuanJo Ciarlante on 2014-03-13

actually add debian/patches/quote_readline_by_ref_fixes.patch

[JuanJo Ciarlante (jjo)]

> You forgot to include your patch file in your commit. I see
> quote_readline_by_ref_fixes.patch in debian/patches/series, but cannot find
> the file in the tree.
>
> Please add the file.
>
> Thanks for your work.

dOH! - added, thanks for the prompt review.

=== modified file '.pc/applied-patches'
--- .pc/applied-patches	2014-03-09 17:38:14 +0000
+++ .pc/applied-patches	2014-03-13 23:26:44 +0000
@@ -3,3 +3,4 @@
 dpkg-deb-R-add.patch
 dpkg-ddeb.patch
 words_bad_array_subscript.patch
+quote_readline_by_ref_fixes.patch
 
=== modified file 'bash_completion'
--- bash_completion	2014-03-09 17:38:14 +0000
+++ bash_completion	2014-03-13 23:26:44 +0000
@@ -536,13 +536,23 @@
 # @param $2  Name of variable to return result to
 _quote_readline_by_ref()
 {
-    if [[ $1 == \'* ]]; then
+    if [ -z "$1" ]; then
+        # avoid quoting if empty
+        printf -v $2 %s "$1"
+    elif [[ $1 == \'* ]]; then
         # Leave out first character
         printf -v $2 %s "${1:1}"
+    elif [[ $1 == ~* ]]; then
+        # avoid escaping first ~
+        printf -v $2 ~%q "${1:1}"
     else
         printf -v $2 %q "$1"
     fi
 
+    # Replace double escaping ( \\ ) by single ( \ )
+    # This happens always when argument is already escaped at cmdline,
+    # and passed to this function as e.g.: file\ with\ spaces
+    [[ ${!2} == *\\* ]] && printf -v $2 %s "${1//\\\\/\\}"
     # If result becomes quoted like this: $'string', re-evaluate in order to
     # drop the additional quoting.  See also: http://www.mail-archive.com/
     # [e-mail]/msg01942.html
 
=== added file 'debian/patches/quote_readline_by_ref_fixes.patch'
--- debian/patches/quote_readline_by_ref_fixes.patch	1970-01-01 00:00:00 +0000
+++ debian/patches/quote_readline_by_ref_fixes.patch	2014-03-13 23:26:44 +0000
@@ -0,0 +1,29 @@
+Index: bash-completion/bash_completion
+===================================================================
+--- bash-completion.orig/bash_completion	2014-03-13 19:40:27.329251000 -0300
++++ bash-completion/bash_completion	2014-03-13 19:41:29.363721903 -0300
+@@ -536,13 +536,23 @@
+ # @param $2  Name of variable to return result to
+ _quote_readline_by_ref()
+ {
+-    if [[ $1 == \'* ]]; then
++    if [ -z "$1" ]; then
++        # avoid quoting if empty
++        printf -v $2 %s "$1"
++    elif [[ $1 == \'* ]]; then
+         # Leave out first character
+         printf -v $2 %s "${1:1}"
++    elif [[ $1 == ~* ]]; then
++        # avoid escaping first ~
++        printf -v $2 ~%q "${1:1}"
+     else
+         printf -v $2 %q "$1"
+     fi
+ 
++    # Replace double escaping ( \\ ) by single ( \ )
++    # This happens always when argument is already escaped at cmdline,
++    # and passed to this function as e.g.: file\ with\ spaces
++    [[ ${!2} == *\\* ]] && printf -v $2 %s "${1//\\\\/\\}"
+     # If result becomes quoted like this: $'string', re-evaluate in order to
+     # drop the additional quoting.  See also: http://www.mail-archive.com/
+     # [e-mail]/msg01942.html
 
=== modified file 'debian/patches/series'
--- debian/patches/series	2014-03-09 17:38:14 +0000
+++ debian/patches/series	2014-03-13 23:26:44 +0000
@@ -3,3 +3,4 @@
 dpkg-deb-R-add.patch
 dpkg-ddeb.patch
 words_bad_array_subscript.patch
+quote_readline_by_ref_fixes.patch