ohmyzsh/lib/git.zsh
Marc Cornellà 8b37f817c2 fix(lib): use -N syntax in head and tail to support Solaris ()
Closes 

Co-authored-by: Sergey Mashkov <cy6erGn0m@gmail.com>
2021-01-16 18:59:24 +01:00

280 lines
10 KiB
Bash

# The git prompt's git commands are read-only and should not interfere with
# other processes. This environment variable is equivalent to running with `git
# --no-optional-locks`, but falls back gracefully for older versions of git.
# See git(1) for and git-status(1) for a description of that flag.
#
# We wrap in a local function instead of exporting the variable directly in
# order to avoid interfering with manually-run git commands by the user.
function __git_prompt_git() {
GIT_OPTIONAL_LOCKS=0 command git "$@"
}
function git_prompt_info() {
# If we are on a folder not tracked by git, get out.
# Otherwise, check for hide-info at global and local repository level
if ! __git_prompt_git rev-parse --git-dir &> /dev/null \
|| [[ "$(__git_prompt_git config --get oh-my-zsh.hide-info 2>/dev/null)" == 1 ]]; then
return 0
fi
local ref
ref=$(__git_prompt_git symbolic-ref --short HEAD 2> /dev/null) \
|| ref=$(__git_prompt_git rev-parse --short HEAD 2> /dev/null) \
|| return 0
# Use global ZSH_THEME_GIT_SHOW_UPSTREAM=1 for including upstream remote info
local upstream
if (( ${+ZSH_THEME_GIT_SHOW_UPSTREAM} )); then
upstream=$(__git_prompt_git rev-parse --abbrev-ref --symbolic-full-name "@{upstream}" 2>/dev/null) \
&& upstream=" -> ${upstream}"
fi
echo "${ZSH_THEME_GIT_PROMPT_PREFIX}${ref}${upstream}$(parse_git_dirty)${ZSH_THEME_GIT_PROMPT_SUFFIX}"
}
# Checks if working tree is dirty
function parse_git_dirty() {
local STATUS
local -a FLAGS
FLAGS=('--porcelain')
if [[ "$(__git_prompt_git config --get oh-my-zsh.hide-dirty)" != "1" ]]; then
if [[ "${DISABLE_UNTRACKED_FILES_DIRTY:-}" == "true" ]]; then
FLAGS+='--untracked-files=no'
fi
case "${GIT_STATUS_IGNORE_SUBMODULES:-}" in
git)
# let git decide (this respects per-repo config in .gitmodules)
;;
*)
# if unset: ignore dirty submodules
# other values are passed to --ignore-submodules
FLAGS+="--ignore-submodules=${GIT_STATUS_IGNORE_SUBMODULES:-dirty}"
;;
esac
STATUS=$(__git_prompt_git status ${FLAGS} 2> /dev/null | tail -1)
fi
if [[ -n $STATUS ]]; then
echo "$ZSH_THEME_GIT_PROMPT_DIRTY"
else
echo "$ZSH_THEME_GIT_PROMPT_CLEAN"
fi
}
# Gets the difference between the local and remote branches
function git_remote_status() {
local remote ahead behind git_remote_status git_remote_status_detailed
remote=${$(__git_prompt_git rev-parse --verify ${hook_com[branch]}@{upstream} --symbolic-full-name 2>/dev/null)/refs\/remotes\/}
if [[ -n ${remote} ]]; then
ahead=$(__git_prompt_git rev-list ${hook_com[branch]}@{upstream}..HEAD 2>/dev/null | wc -l)
behind=$(__git_prompt_git rev-list HEAD..${hook_com[branch]}@{upstream} 2>/dev/null | wc -l)
if [[ $ahead -eq 0 ]] && [[ $behind -eq 0 ]]; then
git_remote_status="$ZSH_THEME_GIT_PROMPT_EQUAL_REMOTE"
elif [[ $ahead -gt 0 ]] && [[ $behind -eq 0 ]]; then
git_remote_status="$ZSH_THEME_GIT_PROMPT_AHEAD_REMOTE"
git_remote_status_detailed="$ZSH_THEME_GIT_PROMPT_AHEAD_REMOTE_COLOR$ZSH_THEME_GIT_PROMPT_AHEAD_REMOTE$((ahead))%{$reset_color%}"
elif [[ $behind -gt 0 ]] && [[ $ahead -eq 0 ]]; then
git_remote_status="$ZSH_THEME_GIT_PROMPT_BEHIND_REMOTE"
git_remote_status_detailed="$ZSH_THEME_GIT_PROMPT_BEHIND_REMOTE_COLOR$ZSH_THEME_GIT_PROMPT_BEHIND_REMOTE$((behind))%{$reset_color%}"
elif [[ $ahead -gt 0 ]] && [[ $behind -gt 0 ]]; then
git_remote_status="$ZSH_THEME_GIT_PROMPT_DIVERGED_REMOTE"
git_remote_status_detailed="$ZSH_THEME_GIT_PROMPT_AHEAD_REMOTE_COLOR$ZSH_THEME_GIT_PROMPT_AHEAD_REMOTE$((ahead))%{$reset_color%}$ZSH_THEME_GIT_PROMPT_BEHIND_REMOTE_COLOR$ZSH_THEME_GIT_PROMPT_BEHIND_REMOTE$((behind))%{$reset_color%}"
fi
if [[ -n $ZSH_THEME_GIT_PROMPT_REMOTE_STATUS_DETAILED ]]; then
git_remote_status="$ZSH_THEME_GIT_PROMPT_REMOTE_STATUS_PREFIX$remote$git_remote_status_detailed$ZSH_THEME_GIT_PROMPT_REMOTE_STATUS_SUFFIX"
fi
echo $git_remote_status
fi
}
# Outputs the name of the current branch
# Usage example: git pull origin $(git_current_branch)
# Using '--quiet' with 'symbolic-ref' will not cause a fatal error (128) if
# it's not a symbolic ref, but in a Git repo.
function git_current_branch() {
local ref
ref=$(__git_prompt_git symbolic-ref --quiet HEAD 2> /dev/null)
local ret=$?
if [[ $ret != 0 ]]; then
[[ $ret == 128 ]] && return # no git repo.
ref=$(__git_prompt_git rev-parse --short HEAD 2> /dev/null) || return
fi
echo ${ref#refs/heads/}
}
# Gets the number of commits ahead from remote
function git_commits_ahead() {
if __git_prompt_git rev-parse --git-dir &>/dev/null; then
local commits="$(__git_prompt_git rev-list --count @{upstream}..HEAD 2>/dev/null)"
if [[ -n "$commits" && "$commits" != 0 ]]; then
echo "$ZSH_THEME_GIT_COMMITS_AHEAD_PREFIX$commits$ZSH_THEME_GIT_COMMITS_AHEAD_SUFFIX"
fi
fi
}
# Gets the number of commits behind remote
function git_commits_behind() {
if __git_prompt_git rev-parse --git-dir &>/dev/null; then
local commits="$(__git_prompt_git rev-list --count HEAD..@{upstream} 2>/dev/null)"
if [[ -n "$commits" && "$commits" != 0 ]]; then
echo "$ZSH_THEME_GIT_COMMITS_BEHIND_PREFIX$commits$ZSH_THEME_GIT_COMMITS_BEHIND_SUFFIX"
fi
fi
}
# Outputs if current branch is ahead of remote
function git_prompt_ahead() {
if [[ -n "$(__git_prompt_git rev-list origin/$(git_current_branch)..HEAD 2> /dev/null)" ]]; then
echo "$ZSH_THEME_GIT_PROMPT_AHEAD"
fi
}
# Outputs if current branch is behind remote
function git_prompt_behind() {
if [[ -n "$(__git_prompt_git rev-list HEAD..origin/$(git_current_branch) 2> /dev/null)" ]]; then
echo "$ZSH_THEME_GIT_PROMPT_BEHIND"
fi
}
# Outputs if current branch exists on remote or not
function git_prompt_remote() {
if [[ -n "$(__git_prompt_git show-ref origin/$(git_current_branch) 2> /dev/null)" ]]; then
echo "$ZSH_THEME_GIT_PROMPT_REMOTE_EXISTS"
else
echo "$ZSH_THEME_GIT_PROMPT_REMOTE_MISSING"
fi
}
# Formats prompt string for current git commit short SHA
function git_prompt_short_sha() {
local SHA
SHA=$(__git_prompt_git rev-parse --short HEAD 2> /dev/null) && echo "$ZSH_THEME_GIT_PROMPT_SHA_BEFORE$SHA$ZSH_THEME_GIT_PROMPT_SHA_AFTER"
}
# Formats prompt string for current git commit long SHA
function git_prompt_long_sha() {
local SHA
SHA=$(__git_prompt_git rev-parse HEAD 2> /dev/null) && echo "$ZSH_THEME_GIT_PROMPT_SHA_BEFORE$SHA$ZSH_THEME_GIT_PROMPT_SHA_AFTER"
}
function git_prompt_status() {
[[ "$(__git_prompt_git config --get oh-my-zsh.hide-status 2>/dev/null)" = 1 ]] && return
# Maps a git status prefix to an internal constant
# This cannot use the prompt constants, as they may be empty
local -A prefix_constant_map
prefix_constant_map=(
'\?\? ' 'UNTRACKED'
'A ' 'ADDED'
'M ' 'ADDED'
'MM ' 'MODIFIED'
' M ' 'MODIFIED'
'AM ' 'MODIFIED'
' T ' 'MODIFIED'
'R ' 'RENAMED'
' D ' 'DELETED'
'D ' 'DELETED'
'UU ' 'UNMERGED'
'ahead' 'AHEAD'
'behind' 'BEHIND'
'diverged' 'DIVERGED'
'stashed' 'STASHED'
)
# Maps the internal constant to the prompt theme
local -A constant_prompt_map
constant_prompt_map=(
'UNTRACKED' "$ZSH_THEME_GIT_PROMPT_UNTRACKED"
'ADDED' "$ZSH_THEME_GIT_PROMPT_ADDED"
'MODIFIED' "$ZSH_THEME_GIT_PROMPT_MODIFIED"
'RENAMED' "$ZSH_THEME_GIT_PROMPT_RENAMED"
'DELETED' "$ZSH_THEME_GIT_PROMPT_DELETED"
'UNMERGED' "$ZSH_THEME_GIT_PROMPT_UNMERGED"
'AHEAD' "$ZSH_THEME_GIT_PROMPT_AHEAD"
'BEHIND' "$ZSH_THEME_GIT_PROMPT_BEHIND"
'DIVERGED' "$ZSH_THEME_GIT_PROMPT_DIVERGED"
'STASHED' "$ZSH_THEME_GIT_PROMPT_STASHED"
)
# The order that the prompt displays should be added to the prompt
local status_constants
status_constants=(
UNTRACKED ADDED MODIFIED RENAMED DELETED
STASHED UNMERGED AHEAD BEHIND DIVERGED
)
local status_text="$(__git_prompt_git status --porcelain -b 2> /dev/null)"
# Don't continue on a catastrophic failure
if [[ $? -eq 128 ]]; then
return 1
fi
# A lookup table of each git status encountered
local -A statuses_seen
if __git_prompt_git rev-parse --verify refs/stash &>/dev/null; then
statuses_seen[STASHED]=1
fi
local status_lines
status_lines=("${(@f)${status_text}}")
# If the tracking line exists, get and parse it
if [[ "$status_lines[1]" =~ "^## [^ ]+ \[(.*)\]" ]]; then
local branch_statuses
branch_statuses=("${(@s/,/)match}")
for branch_status in $branch_statuses; do
if [[ ! $branch_status =~ "(behind|diverged|ahead) ([0-9]+)?" ]]; then
continue
fi
local last_parsed_status=$prefix_constant_map[$match[1]]
statuses_seen[$last_parsed_status]=$match[2]
done
fi
# For each status prefix, do a regex comparison
for status_prefix in ${(k)prefix_constant_map}; do
local status_constant="${prefix_constant_map[$status_prefix]}"
local status_regex=$'(^|\n)'"$status_prefix"
if [[ "$status_text" =~ $status_regex ]]; then
statuses_seen[$status_constant]=1
fi
done
# Display the seen statuses in the order specified
local status_prompt
for status_constant in $status_constants; do
if (( ${+statuses_seen[$status_constant]} )); then
local next_display=$constant_prompt_map[$status_constant]
status_prompt="$next_display$status_prompt"
fi
done
echo $status_prompt
}
# Outputs the name of the current user
# Usage example: $(git_current_user_name)
function git_current_user_name() {
__git_prompt_git config user.name 2>/dev/null
}
# Outputs the email of the current user
# Usage example: $(git_current_user_email)
function git_current_user_email() {
__git_prompt_git config user.email 2>/dev/null
}
# Output the name of the root directory of the git repository
# Usage example: $(git_repo_name)
function git_repo_name() {
local repo_path
if repo_path="$(__git_prompt_git rev-parse --show-toplevel 2>/dev/null)" && [[ -n "$repo_path" ]]; then
echo ${repo_path:t}
fi
}