+# Exposes Git repository information via the $git_info associative array.
+#
+# Authors:
+# Sorin Ionescu <sorin.ionescu@gmail.com>
+#
+
+# Gets the Git special action (am, bisect, cherry, merge, rebase).
+# Borrowed from vcs_info and edited.
+function _git-action {
+ local action_dir
+ local git_dir="$(git-dir)"
+ local apply_formatted
+ local bisect_formatted
+ local cherry_pick_formatted
+ local cherry_pick_sequence_formatted
+ local merge_formatted
+ local rebase_formatted
+ local rebase_interactive_formatted
+ local rebase_merge_formatted
+
+ for action_dir in \
+ "${git_dir}/rebase-apply" \
+ "${git_dir}/rebase" \
+ "${git_dir}/../.dotest"
+ do
+ if [[ -d "$action_dir" ]] ; then
+ zstyle -s ':git:info:action:apply' format 'apply_formatted' || apply_formatted='apply'
+ zstyle -s ':git:info:action:rebase' format 'rebase_formatted' || rebase_formatted='rebase'
+
+ if [[ -f "${action_dir}/rebasing" ]] ; then
+ print "$rebase_formatted"
+ elif [[ -f "${action_dir}/applying" ]] ; then
+ print "$apply_formatted"
+ else
+ print "${rebase_formatted}/${apply_formatted}"
+ fi
+
+ return 0
+ fi
+ done
+
+ for action_dir in \
+ "${git_dir}/rebase-merge/interactive" \
+ "${git_dir}/.dotest-merge/interactive"
+ do
+ if [[ -f "$action_dir" ]]; then
+ zstyle -s ':git:info:action:rebase-interactive' format 'rebase_interactive_formatted' || rebase_interactive_formatted='rebase-interactive'
+ print "$rebase_interactive_formatted"
+ return 0
+ fi
+ done
+
+ for action_dir in \
+ "${git_dir}/rebase-merge" \
+ "${git_dir}/.dotest-merge"
+ do
+ if [[ -d "$action_dir" ]]; then
+ zstyle -s ':git:info:action:rebase-merge' format 'rebase_merge_formatted' || rebase_merge_formatted='rebase-merge'
+ print "$rebase_merge_formatted"
+ return 0
+ fi
+ done
+
+ if [[ -f "${git_dir}/MERGE_HEAD" ]]; then
+ zstyle -s ':git:info:action:merge' format 'merge_formatted' || merge_formatted='merge'
+ print "$merge_formatted"
+ return 0
+ fi
+
+ if [[ -f "${git_dir}/CHERRY_PICK_HEAD" ]]; then
+ if [[ -d "${git_dir}/sequencer" ]] ; then
+ zstyle -s ':git:info:action:cherry-pick-sequence' format 'cherry_pick_sequence_formatted' || cherry_pick_sequence_formatted='cherry-pick-sequence'
+ print "$cherry_pick_sequence_formatted"
+ else
+ zstyle -s ':git:info:action:cherry-pick' format 'cherry_pick_formatted' || cherry_pick_formatted='cherry-pick'
+ print "$cherry_pick_formatted"
+ fi
+
+ return 0
+ fi
+
+ if [[ -f "${git_dir}/BISECT_LOG" ]]; then
+ zstyle -s ':git:info:action:bisect' format 'bisect_formatted' || bisect_formatted='bisect'
+ print "$bisect_formatted"
+ return 0
+ fi
+
+ return 1
+}
+
+# Gets the Git status information.
+function git-info {
+ # Extended globbing is needed to parse repository status.
+ setopt LOCAL_OPTIONS
+ setopt EXTENDED_GLOB
+
+ local action
+ local action_format
+ local action_formatted
+ local added=0
+ local added_format
+ local added_formatted
+ local ahead=0
+ local ahead_and_behind
+ local ahead_and_behind_cmd
+ local ahead_format
+ local ahead_formatted
+ local ahead_or_behind
+ local behind=0
+ local behind_format
+ local behind_formatted
+ local branch
+ local branch_format
+ local branch_formatted
+ local branch_info
+ local clean
+ local clean_formatted
+ local commit
+ local commit_format
+ local commit_formatted
+ local deleted=0
+ local deleted_format
+ local deleted_formatted
+ local dirty=0
+ local dirty_format
+ local dirty_formatted
+ local ignore_submodules
+ local indexed=0
+ local indexed_format
+ local indexed_formatted
+ local -A info_formats
+ local info_format
+ local modified=0
+ local modified_format
+ local modified_formatted
+ local position
+ local position_format
+ local position_formatted
+ local remote
+ local remote_cmd
+ local remote_format
+ local remote_formatted
+ local renamed=0
+ local renamed_format
+ local renamed_formatted
+ local stashed=0
+ local stashed_format
+ local stashed_formatted
+ local status_cmd
+ local status_mode
+ local unindexed=0
+ local unindexed_format
+ local unindexed_formatted
+ local unmerged=0
+ local unmerged_format
+ local unmerged_formatted
+ local untracked=0
+ local untracked_format
+ local untracked_formatted
+
+ # Clean up previous $git_info.
+ unset git_info
+ typeset -gA git_info
+
+ # Return if not inside a Git repository work tree.
+ if [ "$(git rev-parse --is-inside-work-tree 2> /dev/null)" != 'true' ]; then
+ return 1
+ fi
+
+ if (( $# > 0 )); then
+ if [[ "$1" == [Oo][Nn] ]]; then
+ git config --bool prompt.showinfo true
+ elif [[ "$1" == [Oo][Ff][Ff] ]]; then
+ git config --bool prompt.showinfo false
+ else
+ print "usage: $0 [ on | off ]" >&2
+ fi
+ return 0
+ fi
+
+ # Ignore submodule status.
+ zstyle -s ':git:status:ignore' submodules 'ignore_submodules'
+
+ # Format commit.
+ zstyle -s ':git:info:commit' format 'commit_format'
+ if [[ -n "$commit_format" ]]; then
+ commit="$(git rev-parse HEAD 2> /dev/null)"
+ if [[ -n "$commit" ]]; then
+ zformat -f commit_formatted "$commit_format" "c:$commit"
+ fi
+ fi
+
+ # Format stashed.
+ zstyle -s ':git:info:stashed' format 'stashed_format'
+ if [[ -n "$stashed_format" && -f "$(git-dir)/refs/stash" ]]; then
+ stashed="$(git stash list 2> /dev/null | wc -l | awk '{print $1}')"
+ if [[ -n "$stashed" ]]; then
+ zformat -f stashed_formatted "$stashed_format" "S:$stashed"
+ fi
+ fi
+
+ # Format action.
+ zstyle -s ':git:info:action' format 'action_format'
+ if [[ -n "$action_format" ]]; then
+ action="$(_git-action)"
+ if [[ -n "$action" ]]; then
+ zformat -f action_formatted "$action_format" "s:$action"
+ fi
+ fi
+
+ # Get the branch.
+ branch="${$(git symbolic-ref HEAD 2> /dev/null)#refs/heads/}"
+
+ # Format branch.
+ zstyle -s ':git:info:branch' format 'branch_format'
+ if [[ -n "$branch" && -n "$branch_format" ]]; then
+ zformat -f branch_formatted "$branch_format" "b:$branch"
+ fi
+
+ # Format position.
+ zstyle -s ':git:info:position' format 'position_format'
+ if [[ -z "$branch" && -n "$position_format" ]]; then
+ position="$(git describe --contains --all HEAD 2> /dev/null)"
+ if [[ -n "$position" ]]; then
+ zformat -f position_formatted "$position_format" "p:$position"
+ fi
+ fi
+
+ # Format remote.
+ zstyle -s ':git:info:remote' format 'remote_format'
+ if [[ -n "$branch" && -n "$remote_format" ]]; then
+ # Gets the remote name.
+ remote_cmd='git rev-parse --symbolic-full-name --verify HEAD@{upstream}'
+ remote="${$(${(z)remote_cmd} 2> /dev/null)##refs/remotes/}"
+ if [[ -n "$remote" ]]; then
+ zformat -f remote_formatted "$remote_format" "R:$remote"
+ fi
+ fi
+
+ zstyle -s ':git:info:ahead' format 'ahead_format'
+ zstyle -s ':git:info:behind' format 'behind_format'
+ if [[ -n "$branch" && ( -n "$ahead_format" || -n "$behind_format" ) ]]; then
+ # Gets the commit difference counts between local and remote.
+ ahead_and_behind_cmd='git rev-list --count --left-right HEAD...@{upstream}'
+
+ # Get ahead and behind counts.
+ ahead_and_behind="$(${(z)ahead_and_behind_cmd} 2> /dev/null)"
+
+ # Format ahead.
+ if [[ -n "$ahead_format" ]]; then
+ ahead="$ahead_and_behind[(w)1]"
+ if (( ahead > 0 )); then
+ zformat -f ahead_formatted "$ahead_format" "A:$ahead"
+ fi
+ fi
+
+ # Format behind.
+ if [[ -n "$behind_format" ]]; then
+ behind="$ahead_and_behind[(w)2]"
+ if (( behind > 0 )); then
+ zformat -f behind_formatted "$behind_format" "B:$behind"
+ fi
+ fi
+ fi
+
+ # Get status type.
+ if ! zstyle -t ':git:info' verbose; then
+ # Format indexed.
+ zstyle -s ':git:info:indexed' format 'indexed_format'
+ if [[ -n "$indexed_format" ]]; then
+ ((
+ indexed+=$(
+ git diff-index \
+ --no-ext-diff \
+ --name-only \
+ --cached \
+ --ignore-submodules=${ignore_submodules:-none} \
+ HEAD \
+ 2> /dev/null \
+ | wc -l
+ )
+ ))
+ if (( indexed > 0 )); then
+ zformat -f indexed_formatted "$indexed_format" "i:$indexed"
+ fi
+ fi
+
+ # Format unindexed.
+ zstyle -s ':git:info:unindexed' format 'unindexed_format'
+ if [[ -n "$unindexed_format" ]]; then
+ ((
+ unindexed+=$(
+ git diff-files \
+ --no-ext-diff \
+ --name-only \
+ --ignore-submodules=${ignore_submodules:-none} \
+ 2> /dev/null \
+ | wc -l
+ )
+ ))
+ if (( unindexed > 0 )); then
+ zformat -f unindexed_formatted "$unindexed_format" "I:$unindexed"
+ fi
+ fi
+
+ # Format untracked.
+ zstyle -s ':git:info:untracked' format 'untracked_format'
+ if [[ -n "$untracked_format" ]]; then
+ ((
+ untracked+=$(
+ git ls-files \
+ --other \
+ --exclude-standard \
+ 2> /dev/null \
+ | wc -l
+ )
+ ))
+ if (( untracked > 0 )); then
+ zformat -f untracked_formatted "$untracked_format" "u:$untracked"
+ fi
+ fi
+
+ (( dirty = indexed + unindexed + untracked ))
+ else
+ # Use porcelain status for easy parsing.
+ status_cmd="git status --porcelain --ignore-submodules=${ignore_submodules:-none}"
+
+ # Get current status.
+ while IFS=$'\n' read line; do
+ # Count added, deleted, modified, renamed, unmerged, untracked, dirty.
+ # T (type change) is undocumented, see http://git.io/FnpMGw.
+ # For a table of scenarii, see http://i.imgur.com/2YLu1.png.
+ [[ "$line" == ([ACDMT][\ MT]|[ACMT]D)\ * ]] && (( added++ ))
+ [[ "$line" == [\ ACMRT]D\ * ]] && (( deleted++ ))
+ [[ "$line" == ?[MT]\ * ]] && (( modified++ ))
+ [[ "$line" == R?\ * ]] && (( renamed++ ))
+ [[ "$line" == (AA|DD|U?|?U)\ * ]] && (( unmerged++ ))
+ [[ "$line" == \?\?\ * ]] && (( untracked++ ))
+ (( dirty++ ))
+ done < <(${(z)status_cmd} 2> /dev/null)
+
+ # Format added.
+ if (( added > 0 )); then
+ zstyle -s ':git:info:added' format 'added_format'
+ zformat -f added_formatted "$added_format" "a:$added"
+ fi
+
+ # Format deleted.
+ if (( deleted > 0 )); then
+ zstyle -s ':git:info:deleted' format 'deleted_format'
+ zformat -f deleted_formatted "$deleted_format" "d:$deleted"
+ fi
+
+ # Format modified.
+ if (( modified > 0 )); then
+ zstyle -s ':git:info:modified' format 'modified_format'
+ zformat -f modified_formatted "$modified_format" "m:$modified"
+ fi
+
+ # Format renamed.
+ if (( renamed > 0 )); then
+ zstyle -s ':git:info:renamed' format 'renamed_format'
+ zformat -f renamed_formatted "$renamed_format" "r:$renamed"
+ fi
+
+ # Format unmerged.
+ if (( unmerged > 0 )); then
+ zstyle -s ':git:info:unmerged' format 'unmerged_format'
+ zformat -f unmerged_formatted "$unmerged_format" "U:$unmerged"
+ fi
+
+ # Format untracked.
+ if (( untracked > 0 )); then
+ zstyle -s ':git:info:untracked' format 'untracked_format'
+ zformat -f untracked_formatted "$untracked_format" "u:$untracked"
+ fi
+ fi
+
+ # Format dirty and clean.
+ if (( dirty > 0 )); then
+ zstyle -s ':git:info:dirty' format 'dirty_format'
+ zformat -f dirty_formatted "$dirty_format" "D:$dirty"
+ else
+ zstyle -s ':git:info:clean' format 'clean_formatted'
+ fi
+
+ # Format info.
+ zstyle -a ':git:info:keys' format 'info_formats'
+ for info_format in ${(k)info_formats}; do
+ zformat -f REPLY "$info_formats[$info_format]" \
+ "a:$added_formatted" \
+ "A:$ahead_formatted" \
+ "B:$behind_formatted" \
+ "b:$branch_formatted" \
+ "C:$clean_formatted" \
+ "c:$commit_formatted" \
+ "d:$deleted_formatted" \
+ "D:$dirty_formatted" \
+ "i:$indexed_formatted" \
+ "I:$unindexed_formatted" \
+ "m:$modified_formatted" \
+ "p:$position_formatted" \
+ "R:$remote_formatted" \
+ "r:$renamed_formatted" \
+ "s:$action_formatted" \
+ "S:$stashed_formatted" \
+ "U:$unmerged_formatted" \
+ "u:$untracked_formatted"
+ git_info[$info_format]="$REPLY"
+ done
+
+ unset REPLY
+
+ return 0
+}
+
+git-info "$@"