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profile/profile.d/git.sh
2026-04-23 17:18:01 +02:00

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#!/usr/bin/env bash
# ------------------------------------------------------------------------------
# Copyright (c) 2013-2026 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
# Protected by the BSD3 license. Please read bellow for details.
#
# * Redistribution and use in source and binary forms,
# * with or without modification, are permitted provided
# * that the following conditions are met:
# *
# * Redistributions of source code must retain the above
# * copyright notice, this list of conditions and the
# * following disclaimer.
# *
# * Redistributions in binary form must reproduce the above
# * copyright notice, this list of conditions and the following
# * disclaimer in the documentation and/or other materials
# * provided with the distribution.
# *
# * Neither the name of the copyright holder nor the names
# * of any other contributors may be used to endorse or
# * promote products derived from this software without
# * specific prior written permission.
# *
# * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
# * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
# * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
# * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# * OF SUCH DAMAGE.
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Built-in defaults (can be overridden from [git] section in profile.conf)
: "${GIT_MAIN_BRANCH:=main}"
: "${GIT_DEFAULT_REMOTE:=origin}"
: "${GIT_WIP_PREFIX:=wip}"
# ------------------------------------------------------------------------------
# Internal helper: ensure git is available and cwd is a git worktree
_git_require_repo()
{
if ! command -v git >/dev/null 2>&1; then
disp E "git command not found."
return 1
fi
if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
disp E "Current directory is not inside a git repository."
return 1
fi
return 0
}
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Internal helper: return default branch from remote HEAD, fallback to config
_git_default_branch()
{
local remote="${1:-$GIT_DEFAULT_REMOTE}"
local head
head=$(git symbolic-ref --quiet --short "refs/remotes/${remote}/HEAD" 2>/dev/null) || true
if [[ -n $head ]]; then
printf "%s\n" "${head#${remote}/}"
return 0
fi
printf "%s\n" "$GIT_MAIN_BRANCH"
return 0
}
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Display compact git status + branch tracking information
# Usage: gst [path]
gst()
{
local PARSED
PARSED=$(getopt -o h --long help -n 'gst' -- "$@")
# shellcheck disable=SC2181 # getopt return code is checked immediately after
if [[ $? -ne 0 ]]; then
disp E "Invalid options, use \"gst --help\" to display usage."
return 1
fi
eval set -- "$PARSED"
while true; do
case "$1" in
-h|--help)
printf "gst: Display short git status and branch tracking info.\n"
printf "Usage: gst [path]\n"
return 0
;;
--)
shift
break
;;
*)
disp E "Invalid options, use \"gst --help\" to display usage."
return 1
;;
esac
done
local target="${1:-.}"
git -C "$target" status --short --branch
}
export -f gst
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Show a readable commit graph
# Usage: ggraph [-n limit]
ggraph()
{
local PARSED
PARSED=$(getopt -o hn: --long help,limit: -n 'ggraph' -- "$@")
# shellcheck disable=SC2181 # getopt return code is checked immediately after
if [[ $? -ne 0 ]]; then
disp E "Invalid options, use \"ggraph --help\" to display usage."
return 1
fi
eval set -- "$PARSED"
local limit=30
while true; do
case "$1" in
-h|--help)
printf "ggraph: Display decorated git history graph.\n"
printf "Usage: ggraph [-n limit]\n"
printf "Options:\n"
printf "\t-n, --limit\tNumber of commits to display (default: 30)\n"
return 0
;;
-n|--limit)
limit="$2"
shift 2
;;
--)
shift
break
;;
*)
disp E "Invalid options, use \"ggraph --help\" to display usage."
return 1
;;
esac
done
[[ $limit =~ ^[0-9]+$ ]] || {
disp E "Invalid limit: must be a positive integer."
return 1
}
_git_require_repo || return 1
git log --graph --decorate --oneline --all --max-count="$limit"
}
export -f ggraph
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Sync current branch with remote (fetch + rebase)
# Usage: gsync [remote]
gsync()
{
local PARSED
PARSED=$(getopt -o h --long help -n 'gsync' -- "$@")
# shellcheck disable=SC2181 # getopt return code is checked immediately after
if [[ $? -ne 0 ]]; then
disp E "Invalid options, use \"gsync --help\" to display usage."
return 1
fi
eval set -- "$PARSED"
while true; do
case "$1" in
-h|--help)
printf "gsync: Fetch and rebase current branch onto its remote tracking branch.\n"
printf "Usage: gsync [remote]\n"
return 0
;;
--)
shift
break
;;
*)
disp E "Invalid options, use \"gsync --help\" to display usage."
return 1
;;
esac
done
_git_require_repo || return 1
local remote="${1:-$GIT_DEFAULT_REMOTE}"
local branch upstream
branch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null) || return 1
upstream=$(git rev-parse --abbrev-ref --symbolic-full-name '@{u}' 2>/dev/null) || true
disp I "Fetching from $remote..."
git fetch --prune "$remote" || return 1
if [[ -z $upstream ]]; then
disp W "No upstream configured for $branch, skipping rebase."
disp I "Set one with: git branch --set-upstream-to ${remote}/${branch} ${branch}"
return 0
fi
disp I "Rebasing $branch onto $upstream..."
git rebase "$upstream"
}
export -f gsync
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Reset local branch to exact upstream state (stash local changes first)
# Usage: greset [target]
greset()
{
local PARSED
PARSED=$(getopt -o hx --long help,with-ignored -n 'greset' -- "$@")
# shellcheck disable=SC2181 # getopt return code is checked immediately after
if [[ $? -ne 0 ]]; then
disp E "Invalid options, use \"greset --help\" to display usage."
return 1
fi
eval set -- "$PARSED"
local clean_ignored=0
while true; do
case "$1" in
-h|--help)
printf "greset: Reset current branch to upstream, stashing local changes first.\n"
printf "Usage: greset [target]\n"
printf "Options:\n"
printf "\t-x, --with-ignored\tAlso remove ignored files (git clean -fdx)\n"
printf "\n"
printf "Default target is current branch upstream (@{u}).\n"
printf "If no upstream exists, fallback target is <remote>/<branch>.\n"
printf "This command stashes local modifications (tracked + untracked),\n"
printf "drops local unpushed commits by hard-reset, and cleans untracked files.\n"
return 0
;;
-x|--with-ignored)
clean_ignored=1
shift
;;
--)
shift
break
;;
*)
disp E "Invalid options, use \"greset --help\" to display usage."
return 1
;;
esac
done
_git_require_repo || return 1
local branch upstream target remote old_head stash_msg stash_out stash_created=0 dropped=0
branch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null) || return 1
upstream=$(git rev-parse --abbrev-ref --symbolic-full-name '@{u}' 2>/dev/null) || true
target="$1"
if [[ -z $target ]]; then
if [[ -n $upstream ]]; then
target="$upstream"
else
remote="$GIT_DEFAULT_REMOTE"
target="${remote}/${branch}"
fi
fi
if [[ -z $remote ]]; then
remote="${target%%/*}"
fi
old_head=$(git rev-parse HEAD 2>/dev/null) || return 1
if ! git diff --quiet || ! git diff --cached --quiet || [[ -n $(git ls-files --others --exclude-standard) ]]; then
stash_msg="greset:${branch}:$(date +'%Y-%m-%d %H:%M:%S')"
disp I "Stashing local changes as '$stash_msg'..."
stash_out=$(git stash push -u -m "$stash_msg" 2>&1) || {
disp E "Failed to stash local changes."
printf "%s\n" "$stash_out"
return 1
}
[[ $stash_out != "No local changes to save"* ]] && stash_created=1
fi
disp I "Fetching from $remote..."
git fetch --prune "$remote" || return 1
if ! git rev-parse --verify --quiet "$target" >/dev/null; then
disp E "Target '$target' does not exist."
return 1
fi
dropped=$(git rev-list --count "${target}..${old_head}" 2>/dev/null || printf "0")
disp W "Hard-resetting $branch to $target..."
git reset --hard "$target" || return 1
if (( clean_ignored )); then
git clean -fdx || return 1
else
git clean -fd || return 1
fi
if (( stash_created )); then
disp I "Local changes were stashed. Use 'git stash list' and 'git stash pop' when needed."
fi
disp I "greset complete. Dropped local-only commits: $dropped"
return 0
}
export -f greset
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Create a quick WIP commit for local checkpointing
# Usage: gwip [message]
gwip()
{
local PARSED
PARSED=$(getopt -o h --long help -n 'gwip' -- "$@")
# shellcheck disable=SC2181 # getopt return code is checked immediately after
if [[ $? -ne 0 ]]; then
disp E "Invalid options, use \"gwip --help\" to display usage."
return 1
fi
eval set -- "$PARSED"
while true; do
case "$1" in
-h|--help)
printf "gwip: Create a local checkpoint commit with all tracked/untracked changes.\n"
printf "Usage: gwip [message]\n"
return 0
;;
--)
shift
break
;;
*)
disp E "Invalid options, use \"gwip --help\" to display usage."
return 1
;;
esac
done
_git_require_repo || return 1
local msg
if [[ $# -gt 0 ]]; then
msg="$*"
else
msg="$GIT_WIP_PREFIX: $(date +'%Y-%m-%d %H:%M:%S')"
fi
git add -A || return 1
git commit -m "$msg"
}
export -f gwip
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Delete merged local branches (except protected branches)
# Usage: gprune [main-branch]
gprune()
{
local PARSED
PARSED=$(getopt -o h --long help -n 'gprune' -- "$@")
# shellcheck disable=SC2181 # getopt return code is checked immediately after
if [[ $? -ne 0 ]]; then
disp E "Invalid options, use \"gprune --help\" to display usage."
return 1
fi
eval set -- "$PARSED"
while true; do
case "$1" in
-h|--help)
printf "gprune: Delete local branches already merged into main branch.\n"
printf "Usage: gprune [main-branch]\n"
return 0
;;
--)
shift
break
;;
*)
disp E "Invalid options, use \"gprune --help\" to display usage."
return 1
;;
esac
done
_git_require_repo || return 1
local base="${1:-$(_git_default_branch "$GIT_DEFAULT_REMOTE")}" current deleted=0
current=$(git rev-parse --abbrev-ref HEAD 2>/dev/null) || return 1
disp I "Pruning branches merged into $base..."
while IFS= read -r b; do
[[ -z $b ]] && continue
[[ $b == "$current" ]] && continue
[[ $b == "$base" ]] && continue
[[ $b == "master" || $b == "main" || $b == "develop" || $b == "dev" ]] && continue
git branch -d "$b" >/dev/null 2>&1 && {
printf "Deleted: %s\n" "$b"
((deleted++))
}
done < <(git branch --merged "$base" | sed -E 's/^\*?\s*//')
(( deleted == 0 )) && disp I "No merged branches to delete."
}
export -f gprune
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Print repository root path
# Usage: groot
groot()
{
local PARSED
PARSED=$(getopt -o hg --long help,go -n 'groot' -- "$@")
# shellcheck disable=SC2181 # getopt return code is checked immediately after
if [[ $? -ne 0 ]]; then
disp E "Invalid options, use \"groot --help\" to display usage."
return 1
fi
eval set -- "$PARSED"
local do_go=0
while true; do
case "$1" in
-h|--help)
printf "groot: Display the absolute path of the current repository root.\n"
printf "Usage: groot [-g|--go]\n"
printf "Options:\n"
printf "\t-g, --go\tChange current directory to repository root\n"
return 0
;;
-g|--go)
do_go=1
shift
;;
--)
shift
break
;;
*)
disp E "Invalid options, use \"groot --help\" to display usage."
return 1
;;
esac
done
_git_require_repo || return 1
local root
root=$(git rev-parse --show-toplevel) || return 1
if (( do_go )); then
cd "$root" || {
disp E "Failed to move to repository root: $root"
return 1
}
return 0
fi
printf "%s\n" "$root"
}
export -f groot
# ------------------------------------------------------------------------------
load_conf git
# EOF