diff --git a/profile.d/bash-completion/git-completion.sh b/profile.d/bash-completion/git-completion.sh
new file mode 100644
index 0000000..df8ce27
--- /dev/null
+++ b/profile.d/bash-completion/git-completion.sh
@@ -0,0 +1,188 @@
+#!/usr/bin/env bash
+# ------------------------------------------------------------------------------
+# Git helper completions for profile.d/git.sh shortcuts.
+# ------------------------------------------------------------------------------
+
+# Return 0 when current directory is inside a git work tree.
+_profile_git_in_repo()
+{
+    git rev-parse --is-inside-work-tree >/dev/null 2>&1
+}
+
+# Load git completion helpers on demand if they are available on the system.
+_profile_git_load_completion_helpers()
+{
+    declare -F __git_complete >/dev/null 2>&1 && return 0
+
+    local completion_file
+    for completion_file in \
+        /usr/share/bash-completion/completions/git \
+        /usr/share/git/completion/git-completion.bash \
+        /etc/bash_completion.d/git
+    do
+        if [[ -r "$completion_file" ]]; then
+            # shellcheck source=/dev/null
+            . "$completion_file"
+            break
+        fi
+    done
+
+    declare -F __git_complete >/dev/null 2>&1
+}
+
+_profile_git_complete_remotes()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    if ! _profile_git_in_repo; then
+        COMPREPLY=()
+        return 0
+    fi
+
+    COMPREPLY=( $(compgen -W "$(git remote 2>/dev/null)" -- "$cur") )
+}
+
+_profile_git_complete_refs()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    if ! _profile_git_in_repo; then
+        COMPREPLY=()
+        return 0
+    fi
+
+    COMPREPLY=( $(compgen -W "$(git for-each-ref --format='%(refname:short)' refs/heads refs/remotes refs/tags 2>/dev/null)" -- "$cur") )
+}
+
+_complete_gst()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    case "$cur" in
+        -*)
+            COMPREPLY=( $(compgen -W "-h --help" -- "$cur") )
+            ;;
+        *)
+            COMPREPLY=( $(compgen -d -- "$cur") )
+            ;;
+    esac
+}
+
+_complete_ggraph()
+{
+    local cur prev
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    prev="${COMP_WORDS[COMP_CWORD-1]}"
+
+    case "$prev" in
+        -n|--limit)
+            COMPREPLY=()
+            return 0
+            ;;
+    esac
+
+    COMPREPLY=( $(compgen -W "-h --help -n --limit" -- "$cur") )
+}
+
+_complete_gsync()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    if [[ $cur == -* ]]; then
+        COMPREPLY=( $(compgen -W "-h --help" -- "$cur") )
+        return 0
+    fi
+
+    _profile_git_complete_remotes
+}
+
+_complete_gacp()
+{
+    local cur prev
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    prev="${COMP_WORDS[COMP_CWORD-1]}"
+
+    case "$prev" in
+        -m|--message)
+            COMPREPLY=()
+            return 0
+            ;;
+    esac
+
+    if [[ $cur == -* ]]; then
+        COMPREPLY=( $(compgen -W "-h --help -a --auto -m --message" -- "$cur") )
+        return 0
+    fi
+
+    COMPREPLY=( $(compgen -f -- "$cur") )
+}
+
+_complete_greset()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    if [[ $cur == -* ]]; then
+        COMPREPLY=( $(compgen -W "-h --help -x --with-ignored" -- "$cur") )
+        return 0
+    fi
+
+    _profile_git_complete_refs
+}
+
+_complete_gwip()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    if [[ $cur == -* ]]; then
+        COMPREPLY=( $(compgen -W "-h --help" -- "$cur") )
+    else
+        COMPREPLY=()
+    fi
+}
+
+_complete_gprune()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    if [[ $cur == -* ]]; then
+        COMPREPLY=( $(compgen -W "-h --help" -- "$cur") )
+        return 0
+    fi
+
+    _profile_git_complete_refs
+}
+
+_complete_groot()
+{
+    local cur
+    cur="${COMP_WORDS[COMP_CWORD]}"
+
+    COMPREPLY=( $(compgen -W "-h --help -g --go" -- "$cur") )
+}
+
+_profile_git_register_completions()
+{
+    complete -F _complete_gst gst
+    complete -F _complete_ggraph ggraph
+    complete -F _complete_gsync gsync
+    complete -F _complete_gacp gacp
+    complete -F _complete_greset greset
+    complete -F _complete_gwip gwip
+    complete -F _complete_gprune gprune
+    complete -F _complete_groot groot
+}
+
+# Register completions only in interactive bash sessions.
+if [[ $- == *i* && -n ${BASH_VERSION:-} ]]; then
+    _profile_git_load_completion_helpers >/dev/null 2>&1 || true
+    _profile_git_register_completions
+fi
+
+# EOF