Merge branch 'cb/maint-no-double-merge'

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index ead530d3a3d8a86735bdfb144de21ccee262062b..80ab4e45eb108898eb80caa32684c3f1308ab3a8 100755 (executable)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -40,6 +40,10 @@
 #       with the bash.showDirtyState variable, which defaults to true
 #       once GIT_PS1_SHOWDIRTYSTATE is enabled.
 #
+#       You can also see if currently something is stashed, by setting
+#       GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
+#       then a '$' will be shown next to the branch name.
+#
 # To submit patches:
 #
 #    *) Read Documentation/SubmittingPatches
@@ -84,43 +88,54 @@ __git_ps1 ()
        if [ -n "$g" ]; then
                local r
                local b
-               if [ -d "$g/rebase-apply" ]; then
-                       if [ -f "$g/rebase-apply/rebasing" ]; then
-                               r="|REBASE"
-               elif [ -f "$g/rebase-apply/applying" ]; then
-                               r="|AM"
-                       else
-                               r="|AM/REBASE"
-                       fi
-                       b="$(git symbolic-ref HEAD 2>/dev/null)"
-               elif [ -f "$g/rebase-merge/interactive" ]; then
+               if [ -f "$g/rebase-merge/interactive" ]; then
                        r="|REBASE-i"
                        b="$(cat "$g/rebase-merge/head-name")"
                elif [ -d "$g/rebase-merge" ]; then
                        r="|REBASE-m"
                        b="$(cat "$g/rebase-merge/head-name")"
-               elif [ -f "$g/MERGE_HEAD" ]; then
-                       r="|MERGING"
-                       b="$(git symbolic-ref HEAD 2>/dev/null)"
                else
-                       if [ -f "$g/BISECT_LOG" ]; then
-                               r="|BISECTING"
-                       fi
-                       if ! b="$(git symbolic-ref HEAD 2>/dev/null)"; then
-                               if ! b="$(git describe --exact-match HEAD 2>/dev/null)"; then
-                                       if [ -r "$g/HEAD" ]; then
-                                               b="$(cut -c1-7 "$g/HEAD")..."
-                                       fi
+                       if [ -d "$g/rebase-apply" ]; then
+                               if [ -f "$g/rebase-apply/rebasing" ]; then
+                                       r="|REBASE"
+                               elif [ -f "$g/rebase-apply/applying" ]; then
+                                       r="|AM"
+                               else
+                                       r="|AM/REBASE"
                                fi
+                       elif [ -f "$g/MERGE_HEAD" ]; then
+                               r="|MERGING"
+                       elif [ -f "$g/BISECT_LOG" ]; then
+                               r="|BISECTING"
                        fi
+
+                       b="$(git symbolic-ref HEAD 2>/dev/null)" || {
+
+                               b="$(
+                               case "${GIT_PS1_DESCRIBE_STYLE-}" in
+                               (contains)
+                                       git describe --contains HEAD ;;
+                               (branch)
+                                       git describe --contains --all HEAD ;;
+                               (describe)
+                                       git describe HEAD ;;
+                               (* | default)
+                                       git describe --exact-match HEAD ;;
+                               esac 2>/dev/null)" ||
+
+                               b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||
+                               b="unknown"
+                               b="($b)"
+                       }
                fi
 
                local w
                local i
+               local s
                local c
 
                if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
-                       if [ "true" = "$(git config --bool core.bare 2>/dev/null)" ]; then
+                       if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
                                c="BARE:"
                        else
                                b="GIT_DIR!"
@@ -138,14 +153,15 @@ __git_ps1 ()
                                        fi
                                fi
                        fi
+                       if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
+                               git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
+                       fi
                fi
 
-               if [ -n "$b" ]; then
-                       if [ -n "${1-}" ]; then
-                               printf "$1" "$c${b##refs/heads/}$w$i$r"
-                       else
-                               printf " (%s)" "$c${b##refs/heads/}$w$i$r"
-                       fi
+               if [ -n "${1-}" ]; then
+                       printf "$1" "$c${b##refs/heads/}$w$i$s$r"
+               else
+                       printf " (%s)" "$c${b##refs/heads/}$w$i$s$r"
                fi
        fi
 }
@@ -1322,6 +1338,35 @@ _git_send_email ()
        COMPREPLY=()
 }
 
+__git_config_get_set_variables ()
+{
+       local prevword word config_file= c=$COMP_CWORD
+       while [ $c -gt 1 ]; do
+               word="${COMP_WORDS[c]}"
+               case "$word" in
+               --global|--system|--file=*)
+                       config_file="$word"
+                       break
+                       ;;
+               -f|--file)
+                       config_file="$word $prevword"
+                       break
+                       ;;
+               esac
+               prevword=$word
+               c=$((--c))
+       done
+
+       for i in $(git --git-dir="$(__gitdir)" config $config_file --list \
+                       2>/dev/null); do
+               case "$i" in
+               *.*)
+                       echo "${i/=*/}"
+                       ;;
+               esac
+       done
+}
+
 _git_config ()
 {
        local cur="${COMP_WORDS[COMP_CWORD]}"
@@ -1353,7 +1398,8 @@ _git_config ()
                __gitcomp "$(__git_merge_strategies)"
                return
                ;;
-       color.branch|color.diff|color.interactive|color.status|color.ui)
+       color.branch|color.diff|color.interactive|\
+       color.showbranch|color.status|color.ui)
                __gitcomp "always never auto"
                return
                ;;
@@ -1388,6 +1434,10 @@ _git_config ()
                __gitcomp "$__git_send_email_suppresscc_options"
                return
                ;;
+       --get|--get-all|--unset|--unset-all)
+               __gitcomp "$(__git_config_get_set_variables)"
+               return
+               ;;
        *.*)
                COMPREPLY=()
                return
@@ -1498,6 +1548,7 @@ _git_config ()
                color.interactive.help
                color.interactive.prompt
                color.pager
+               color.showbranch
                color.status
                color.status.added
                color.status.changed
@@ -1792,7 +1843,7 @@ _git_show ()
                return
                ;;
        --*)
-               __gitcomp "--pretty= --format=
+               __gitcomp "--pretty= --format= --abbrev-commit --oneline
                        $__git_diff_common_options
                        "
                return
@@ -1809,7 +1860,8 @@ _git_show_branch ()
                __gitcomp "
                        --all --remotes --topo-order --current --more=
                        --list --independent --merge-base --no-name
-                       --sha1-name --topics --reflog
+                       --color --no-color
+                       --sha1-name --sparse --topics --reflog
                        "
                return
                ;;
@@ -1829,10 +1881,10 @@ _git_stash ()
                save,--*)
                        __gitcomp "--keep-index"
                        ;;
-               apply,--*)
+               apply,--*|pop,--*)
                        __gitcomp "--index"
                        ;;
-               show,--*|drop,--*|pop,--*|branch,--*)
+               show,--*|drop,--*|branch,--*)
                        COMPREPLY=()
                        ;;
                show,*|apply,*|drop,*|pop,*|branch,*)