git-undo: add confirmation when -h is specified

bin/git-undo

@@ -3,7 +3,25 @@
 back="^"
 
 case "$1" in
-  -h|--hard)
+  -h)
+    cat << EOL
+This will erase any changes since your last commit.
+If you want to get help info, run "git undo --help" instead.
+Do you want to continue? [yN]"
+EOL
+    read -r res
+    case "${res}" in
+      "Y" | "y")
+        test $2 -gt 1 > /dev/null 2>&1 && back="~$2"
+        git reset --hard HEAD$back
+        exit $?
+        ;;
+      * )
+        exit 0
+        ;;
+    esac
+    ;;
+  --hard)
     test $2 -gt 1 > /dev/null 2>&1 && back="~$2"
     git reset --hard HEAD$back && exit 0;
     ;;

man/git-undo.1

@@ -1,7 +1,7 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "GIT\-UNDO" "1" "December 2015" "" ""
+.TH "GIT\-UNDO" "1" "February 2018" "" ""
 .
 .SH "NAME"
 \fBgit\-undo\fR \- Remove latest commits
@@ -22,7 +22,7 @@ This is the default, only rolls back the commit but changes remain un\-staged\.
 \-\-hard or \-h
 .
 .P
-This option wipes your commit(s), so that your changes cannot be recovered\. Use with care\.
+This option wipes your commit(s), so that your changes cannot be recovered\. Use with care\. To avoid being confused with \fB\-\-help\fR, there will be a confirmation when \fB\-h\fR is specified\.
 .
 .P
 <commitcount>

man/git-undo.html

@@ -90,7 +90,8 @@
 
 <p>  --hard or -h</p>
 
-<p>  This option wipes your commit(s), so that your changes cannot be recovered. Use with care.</p>
+<p>  This option wipes your commit(s), so that your changes cannot be recovered. Use with care.
+  To avoid being confused with <code>--help</code>, there will be a confirmation when <code>-h</code> is specified.</p>
 
 <p>  &lt;commitcount&gt;</p>
 
@@ -110,7 +111,7 @@
 
 <h2 id="AUTHOR">AUTHOR</h2>
 
-<p>Written by Kenneth Reitz &lt;<a href="&#x6d;&#x61;&#x69;&#x6c;&#x74;&#x6f;&#58;&#109;&#101;&#x40;&#107;&#101;&#x6e;&#x6e;&#x65;&#x74;&#x68;&#x72;&#x65;&#x69;&#x74;&#122;&#46;&#99;&#x6f;&#x6d;" data-bare-link="true">&#109;&#x65;&#64;&#x6b;&#101;&#x6e;&#110;&#101;&#x74;&#x68;&#x72;&#x65;&#x69;&#x74;&#122;&#x2e;&#x63;&#x6f;&#x6d;</a>&gt; and Nick Lombard &lt;<a href="&#109;&#x61;&#105;&#x6c;&#116;&#x6f;&#58;&#103;&#105;&#x74;&#x68;&#x75;&#x62;&#64;&#x6a;&#105;&#x67;&#x73;&#111;&#x66;&#116;&#46;&#99;&#x6f;&#x2e;&#x7a;&#x61;" data-bare-link="true">&#x67;&#105;&#116;&#104;&#x75;&#x62;&#64;&#106;&#x69;&#x67;&#x73;&#111;&#x66;&#116;&#x2e;&#99;&#x6f;&#46;&#122;&#97;</a>&gt;</p>
+<p>Written by Kenneth Reitz &lt;<a href="&#109;&#97;&#105;&#x6c;&#x74;&#111;&#58;&#x6d;&#x65;&#x40;&#107;&#x65;&#x6e;&#110;&#x65;&#x74;&#x68;&#x72;&#101;&#105;&#116;&#x7a;&#46;&#x63;&#x6f;&#109;" data-bare-link="true">&#x6d;&#101;&#64;&#107;&#x65;&#x6e;&#110;&#x65;&#116;&#x68;&#114;&#101;&#x69;&#x74;&#x7a;&#x2e;&#99;&#111;&#x6d;</a>&gt; and Nick Lombard &lt;<a href="&#109;&#97;&#105;&#x6c;&#116;&#x6f;&#x3a;&#x67;&#x69;&#116;&#104;&#117;&#x62;&#64;&#106;&#105;&#x67;&#x73;&#111;&#102;&#x74;&#46;&#99;&#111;&#x2e;&#x7a;&#x61;" data-bare-link="true">&#103;&#105;&#116;&#x68;&#117;&#98;&#64;&#x6a;&#105;&#x67;&#x73;&#x6f;&#102;&#x74;&#x2e;&#99;&#x6f;&#x2e;&#x7a;&#x61;</a>&gt;</p>
 
 <h2 id="REPORTING-BUGS">REPORTING BUGS</h2>
 
@@ -123,7 +124,7 @@
 
   <ol class='man-decor man-foot man foot'>
     <li class='tl'></li>
-    <li class='tc'>December 2015</li>
+    <li class='tc'>February 2018</li>
     <li class='tr'>git-undo(1)</li>
   </ol>
 

man/git-undo.md

@@ -18,6 +18,7 @@ git-undo(1) -- Remove latest commits
   --hard or -h
 
   This option wipes your commit(s), so that your changes cannot be recovered. Use with care.
+  To avoid being confused with `--help`, there will be a confirmation when `-h` is specified.
 
   <commitcount>