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prezto/plugins/git/functions/git-info
2012-01-23 20:40:57 -05:00

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# Gets the Git special action (am, merge, rebase, etc.).
# Borrowed from vcs_info and edited.
function _git-action() {
local action=''
local action_dir
local git_dir="$(git-root)/.git"
for action_dir in \
"${git_dir}/rebase-apply" \
"${git_dir}/rebase" \
"${git_dir}/../.dotest"; do
if [[ -d "$action_dir" ]] ; then
if [[ -f "${action_dir}/rebasing" ]] ; then
action='rebase'
elif [[ -f "${action_dir}/applying" ]] ; then
action='am'
else
action='am/rebase'
fi
print "$action"
return 0
fi
done
for action_dir in \
"${git_dir}/rebase-merge/interactive" \
"${git_dir}/.dotest-merge/interactive"; do
if [[ -f "$action_dir" ]]; then
print 'rebase-i'
return 0
fi
done
for action_dir in \
"${git_dir}/rebase-merge" \
"${git_dir}/.dotest-merge"; do
if [[ -d "$action_dir" ]]; then
print 'rebase-m'
return 0
fi
done
if [[ -f "${git_dir}/MERGE_HEAD" ]]; then
print 'merge'
return 0
fi
if [[ -f "${git_dir}/CHERRY_PICK_HEAD" ]]; then
print 'cherry-pick'
return 0
fi
if [[ -f "${git_dir}/BISECT_LOG" ]]; then
print 'bisect'
return 0
fi
return 1
}
# Turns off git-info for the current repository.
function _git-info-abort() {
if ! check-bool "$_git_info_executing"; then
return 1
fi
cat > /dev/stderr <<END
Gathering status for certain repositories is time intensive.
By pressing CTRL + C, you have turned off prompt Git status
for this repository.
To revert, execute:
git-info on
END
unset _git_info_executing
git config --bool prompt.showinfo false
git-info
return 0
}
add-zsh-trap INT _git-info-abort
# 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
local ahead_format
local ahead_formatted
local ahead_or_behind
local behind
local behind_format
local behind_formatted
local branch
local branch_info
local branch_format
local branch_formatted
local clean
local clean_formatted
local commit
local commit_short
local commit_format
local deleted=0
local deleted_format
local deleted_formatted
local dirty
local dirty_formatted
local line_number=0
local modified=0
local modified_format
local modified_formatted
local remote
local remote_format
local remote_formatted
local renamed=0
local renamed_format
local renamed_formatted
local commit_formatted
local stashed=0
local stashed_format
local stashed_formatted
local unmerged=0
local unmerged_format
local unmerged_formatted
local untracked=0
local untracked_format
local untracked_formatted
local prompt
local rprompt
local git_info_var
local -A git_info_vars
# Clean up previous Git info.
unset git_prompt_info
unset git_rprompt_info
# Return if not inside a Git repository work tree.
if ! check-bool "$(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: $0 [ on | off ]"
fi
return 0
fi
# Return if git-info is disabled.
if ! check-bool "${$(git config --bool prompt.showinfo):-true}"; then
return 1
fi
# Used to abort and turn git-info off on SIGINT.
_git_info_executing=true
# Get commit.
commit="$(git rev-parse HEAD 2> /dev/null)"
# Format commit (short).
commit_short="$commit[1,7]"
zstyle -s ':git-info:' commit commit_format
zformat -f commit_formatted "$commit_format" "c:$commit_short"
# Stashed
if [[ -f "$(git-root)/.git/refs/stash" ]]; then
stashed="$(git stash list 2>/dev/null | wc -l)"
zstyle -s ':git-info:' stashed stashed_format
zformat -f stashed_formatted "$stashed_format" "S:$stashed"
fi
# Assume that the working copy is clean.
zstyle -s ':git-info:' clean clean_formatted
while IFS=$'\n' read line; do
(( line_number++ ))
if (( line_number == 1)) && [[ "$line" == *'(no branch)'* ]]; then
# Set branch to commit (short) when the branch is not found.
branch="$commit_short"
# Get action.
action="$(_git-action)"
if [[ -n "$action" ]]; then
zstyle -s ':git-info:' action action_format
zformat -f action_formatted "$action_format" "s:$action"
fi
elif (( line_number == 1 )) \
&& [[ "$line" == (#b)'## Initial commit on '(?##) ]]; then
branch="$match[1]"
elif (( line_number == 1 )); then
# Split the line into an array for parsing.
branch_info=(${(s: :)line})
# Match: master...origin/master
if [[ $branch_info[2] == (#b)(?##)...(?##/?##) ]]; then
branch="$match[1]"
remote="$match[2]"
# Match: [ahead or [behind
if [[ $branch_info[3] == (#b)\[(ahead|behind) ]]; then
ahead_or_behind="$match[1]"
if [[ "$ahead_or_behind" == 'behind' ]]; then
# Extract digits: 10]
behind="${branch_info[4]%\]}"
else
# Extract digits: 10] or 10,
ahead="${branch_info[4]%[,\]]}"
# Extract digits: 10]
behind="${branch_info[6]%\]}"
fi
fi
# Match: master
elif [[ $branch_info[2] == (#b)(?##) ]]; then
branch=$match[1]
fi
else
# Format dirty.
[[ -z "$dirty" ]] && zstyle -s ':git-info:' dirty dirty_formatted && unset clean_formatted
# Count: added/deleted/modified/renamed/unmerged/untracked
[[ "$line" == (((A|M|D|T) )|(AD|AM|AT|MM))\ * ]] && (( added++ ))
[[ "$line" == ( D|AD)\ * ]] && (( deleted++ ))
[[ "$line" == (( (M|T))|(AM|AT|MM))\ * ]] && (( modified++ ))
[[ "$line" == R\ \ * ]] && (( renamed++ ))
[[ "$line" == UU\ * ]] && (( unmerged++ ))
[[ "$line" == \?\?\ * ]] && (( untracked++ ))
fi
done < <(git status --short --branch 2> /dev/null)
# Format branch.
zstyle -s ':git-info:' branch branch_format
zformat -f branch_formatted "$branch_format" "b:$branch"
# Format remote.
if [[ "$branch" != "$commit" ]]; then
[[ -z $remote ]] \
&& remote=${$(git rev-parse --verify ${branch}@{upstream} \
--symbolic-full-name 2> /dev/null)#refs/remotes/}
zstyle -s ':git-info:' remote remote_format
zformat -f remote_formatted "$remote_format" "R:$remote"
fi
# Format ahead.
if [[ -n "$ahead" ]]; then
zstyle -s ':git-info:' ahead ahead_format
zformat -f ahead_formatted "$ahead_format" "A:$ahead"
fi
# Format behind.
if [[ -n "$behind" ]]; then
zstyle -s ':git-info:' behind behind_format
zformat -f behind_formatted "$behind_format" "B:$behind"
fi
# Format added.
if (( $added > 0 )); then
zstyle -s ':git-info:' added added_format
zformat -f added_formatted "$added_format" "a:$added_format"
fi
# Format deleted.
if (( $deleted > 0 )); then
zstyle -s ':git-info:' deleted deleted_format
zformat -f deleted_formatted "$deleted_format" "d:$deleted_format"
fi
# Format modified.
if (( $modified > 0 )); then
zstyle -s ':git-info:' modified modified_format
zformat -f modified_formatted "$modified_format" "m:$modified"
fi
# Format renamed.
if (( $renamed > 0 )); then
zstyle -s ':git-info:' renamed renamed_format
zformat -f renamed_formatted "$renamed_format" "r:$renamed"
fi
# Format unmerged.
if (( $unmerged > 0 )); then
zstyle -s ':git-info:' unmerged unmerged_format
zformat -f unmerged_formatted "$unmerged_format" "U:$unmerged"
fi
# Format untracked.
if (( $untracked > 0 )); then
zstyle -s ':git-info:' untracked untracked_format
zformat -f untracked_formatted "$untracked_format" "u:$untracked"
fi
# Format prompts.
zstyle -s ':git-info:' prompt prompt_format
zstyle -s ':git-info:' rprompt rprompt_format
git_info_vars=(
git_prompt_info "$prompt_format"
git_rprompt_info "$rprompt_format"
)
for git_info_var in ${(k)git_info_vars}; do
zformat -f $git_info_var $git_info_vars[$git_info_var] \
"s:$action_formatted" \
"a:$added_formatted" \
"A:$ahead_formatted" \
"B:$behind_formatted" \
"b:$branch_formatted" \
"C:$clean_formatted" \
"c:$commit_formatted" \
"d:$deleted_formatted" \
"D:$dirty_formatted" \
"m:$modified_formatted" \
"R:$remote_formatted" \
"r:$renamed_formatted" \
"S:$stashed_formatted" \
"U:$unmerged_formatted" \
"u:$untracked_formatted"
done
unset _git_info_executing
return 0
}
git-info "$@"