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prezto/modules/git/functions/git-info
2014-12-08 18:21:00 -05:00

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#
# 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 ':prezto:module:git:info:action:apply' format 'apply_formatted' || apply_formatted='apply'
zstyle -s ':prezto:module: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 "$action_dir" ]]; then
zstyle -s ':prezto:module:git:info:action:rebase-interactive' format 'rebase_interactive_formatted' || rebase_interactive_formatted='rebase-interactive'
print "$rebase_interactive_formatted"
return 0
fi
done
for action_dir in \
"${git_dir}/rebase-merge" \
"${git_dir}/.dotest-merge"
do
if [[ -d "$action_dir" ]]; then
zstyle -s ':prezto:module:git:info:action:rebase-merge' format 'rebase_merge_formatted' || rebase_merge_formatted='rebase-merge'
print "$rebase_merge_formatted"
return 0
fi
done
if [[ -f "${git_dir}/MERGE_HEAD" ]]; then
zstyle -s ':prezto:module:git:info:action:merge' format 'merge_formatted' || merge_formatted='merge'
print "$merge_formatted"
return 0
fi
if [[ -f "${git_dir}/CHERRY_PICK_HEAD" ]]; then
if [[ -d "${git_dir}/sequencer" ]] ; then
zstyle -s ':prezto:module:git:info:action:cherry-pick-sequence' format 'cherry_pick_sequence_formatted' || cherry_pick_sequence_formatted='cherry-pick-sequence'
print "$cherry_pick_sequence_formatted"
else
zstyle -s ':prezto:module:git:info:action:cherry-pick' format 'cherry_pick_formatted' || cherry_pick_formatted='cherry-pick'
print "$cherry_pick_formatted"
fi
return 0
fi
if [[ -f "${git_dir}/BISECT_LOG" ]]; then
zstyle -s ':prezto:module:git:info:action:bisect' format 'bisect_formatted' || bisect_formatted='bisect'
print "$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 $git_info.
unset git_info
typeset -gA git_info
# Return if not inside a Git repository work tree.
if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; 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: $0 [ on | off ]" >&2
fi
return 0
fi
# Return if git-info is disabled.
if ! is-true "${$(git config --bool prompt.showinfo):-true}"; then
return 1
fi
# Ignore submodule status.
zstyle -s ':prezto:module:git:status:ignore' submodules 'ignore_submodules'
# Format commit.
zstyle -s ':prezto:module:git:info:commit' format 'commit_format'
if [[ -n "$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 ':prezto:module: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 ':prezto:module: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:$action"
fi
fi
# Get the branch.
branch="${$(git symbolic-ref HEAD 2> /dev/null)#refs/heads/}"
# Format branch.
zstyle -s ':prezto:module:git:info:branch' format 'branch_format'
if [[ -n "$branch" && -n "$branch_format" ]]; then
zformat -f branch_formatted "$branch_format" "b:$branch"
fi
# Format position.
zstyle -s ':prezto:module:git:info:position' format 'position_format'
if [[ -z "$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:$position"
fi
fi
# Format remote.
zstyle -s ':prezto:module:git:info:remote' format 'remote_format'
if [[ -n "$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:$remote"
fi
fi
zstyle -s ':prezto:module:git:info:ahead' format 'ahead_format'
zstyle -s ':prezto:module:git:info:behind' format 'behind_format'
if [[ -n "$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 ':prezto:module:git:info' verbose; then
# Format indexed.
zstyle -s ':prezto:module: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:$indexed"
fi
fi
# Format unindexed.
zstyle -s ':prezto:module:git:info:unindexed' format 'unindexed_format'
if [[ -n "$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 ':prezto:module: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 < <(${(z)status_cmd} 2> /dev/null)
# Format added.
if (( added > 0 )); then
zstyle -s ':prezto:module:git:info:added' format 'added_format'
zformat -f added_formatted "$added_format" "a:$added"
fi
# Format deleted.
if (( deleted > 0 )); then
zstyle -s ':prezto:module:git:info:deleted' format 'deleted_format'
zformat -f deleted_formatted "$deleted_format" "d:$deleted"
fi
# Format modified.
if (( modified > 0 )); then
zstyle -s ':prezto:module:git:info:modified' format 'modified_format'
zformat -f modified_formatted "$modified_format" "m:$modified"
fi
# Format renamed.
if (( renamed > 0 )); then
zstyle -s ':prezto:module:git:info:renamed' format 'renamed_format'
zformat -f renamed_formatted "$renamed_format" "r:$renamed"
fi
# Format unmerged.
if (( unmerged > 0 )); then
zstyle -s ':prezto:module:git:info:unmerged' format 'unmerged_format'
zformat -f unmerged_formatted "$unmerged_format" "U:$unmerged"
fi
# Format untracked.
if (( untracked > 0 )); then
zstyle -s ':prezto:module:git:info:untracked' format 'untracked_format'
zformat -f untracked_formatted "$untracked_format" "u:$untracked"
fi
fi
# Format dirty and clean.
if (( dirty > 0 )); then
zstyle -s ':prezto:module:git:info:dirty' format 'dirty_format'
zformat -f dirty_formatted "$dirty_format" "D:$dirty"
else
zstyle -s ':prezto:module:git:info:clean' format 'clean_formatted'
fi
# Format info.
zstyle -a ':prezto:module: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]="$REPLY"
done
unset REPLY
return 0
}
git-info "$@"