mirror of
https://github.com/wfxr/forgit.git
synced 2026-09-10 07:16:23 -04:00
4995c614e4
Previously we had two different forgit implementations: one for zsh/bash and one for fish. In this commit we move the bash implementation of the forgit functions to the git-forgit script in order to have them in the form of an executable script. This makes using forgit possible without any shell plugin at all and furthermore removes the need to maintain a separate implementation for the fish shell. The simplest way of using forgit from now on is to put git-forgit somewhere in your PATH and call it via "git forgit", without the need for any other files. We keep the shell plugins, though, and maintain backwards compatibility by retaining the plugin functions as simple wrappers around the git-forgit script, making the plugins mainly a collection of aliases only.
524 lines
20 KiB
Bash
Executable file
524 lines
20 KiB
Bash
Executable file
#!/usr/bin/env bash
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# MIT (c) Wenxuan Zhang
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# This file is meant to be executed directly. If it's available on the PATH,
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# it can also be used as a subcommand of git, which then forwards all arguments
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# on to forgit. So, all of these commands will work as expected:
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#
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# `git forgit log`
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# `git forgit checkout_file`
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# `git forgit checkout_file README.md`
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#
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# This gives users the choice to set aliases inside of their git config instead
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# of their shell config if they prefer.
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FORGIT_FZF_DEFAULT_OPTS="
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$FZF_DEFAULT_OPTS
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--ansi
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--height='80%'
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--bind='alt-k:preview-up,alt-p:preview-up'
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--bind='alt-j:preview-down,alt-n:preview-down'
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--bind='ctrl-r:toggle-all'
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--bind='ctrl-s:toggle-sort'
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--bind='?:toggle-preview'
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--bind='alt-w:toggle-preview-wrap'
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--preview-window='right:60%'
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+1
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$FORGIT_FZF_DEFAULT_OPTS
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"
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_forgit_warn() { printf "%b[Warn]%b %s\n" '\e[0;33m' '\e[0m' "$@" >&2; }
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_forgit_info() { printf "%b[Info]%b %s\n" '\e[0;32m' '\e[0m' "$@" >&2; }
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_forgit_inside_work_tree() { git rev-parse --is-inside-work-tree >/dev/null; }
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# tac is not available on OSX, tail -r is not available on Linux, so we use either of them
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_forgit_reverse_lines() { tac 2> /dev/null || tail -r; }
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_forgit_previous_commit() {
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# "SHA~" is invalid when the commit is the first commit, but we can use "--root" instead
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if [[ "$(git rev-parse "$1")" == "$(git rev-list --max-parents=0 HEAD)" ]]; then
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echo "--root"
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else
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echo "$1~"
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fi
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}
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# optional render emoji characters (https://github.com/wfxr/emoji-cli)
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hash emojify &>/dev/null && _forgit_emojify='|emojify'
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# extract the first git sha occurring in the input and strip trailing newline
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_forgit_extract_sha="grep -Eo '[a-f0-9]+' | head -1 | tr -d '[:space:]'"
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_forgit_pager=${FORGIT_PAGER:-$(git config core.pager || echo 'cat')}
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_forgit_show_pager=${FORGIT_SHOW_PAGER:-$(git config pager.show || echo "$_forgit_pager")}
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_forgit_diff_pager=${FORGIT_DIFF_PAGER:-$(git config pager.diff || echo "$_forgit_pager")}
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_forgit_ignore_pager=${FORGIT_IGNORE_PAGER:-$(hash bat &>/dev/null && echo 'bat -l gitignore --color=always' || echo 'cat')}
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_forgit_blame_pager=${FORGIT_BLAME_PAGER:-$(git config pager.blame || echo "$_forgit_pager")}
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_forgit_enter_pager=${FORGIT_ENTER_PAGER:-"LESS='-r' less"}
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_forgit_log_format=${FORGIT_LOG_FORMAT:-%C(auto)%h%d %s %C(black)%C(bold)%cr%Creset}
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_forgit_log_preview_options="--graph --pretty=format:'$_forgit_log_format' --color=always --abbrev-commit --date=relative"
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_forgit_fullscreen_context=${FORGIT_FULLSCREEN_CONTEXT:-10}
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_forgit_preview_context=${FORGIT_PREVIEW_CONTEXT:-3}
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# git commit viewer
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_forgit_log() {
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_forgit_inside_work_tree || return 1
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local opts graph files log_format preview_cmd enter_cmd
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files=$(sed -nE 's/.* -- (.*)/\1/p' <<< "$*") # extract files parameters for `git show` command
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preview_cmd="echo {} | $_forgit_extract_sha | xargs -I% git show --color=always -U$_forgit_preview_context % -- $files | $_forgit_show_pager"
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enter_cmd="echo {} | $_forgit_extract_sha | xargs -I% git show --color=always -U$_forgit_fullscreen_context % -- $files | $_forgit_show_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m --tiebreak=index
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--bind=\"enter:execute($enter_cmd | $_forgit_enter_pager)\"
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--bind=\"ctrl-y:execute-silent(echo {} | $_forgit_extract_sha | ${FORGIT_COPY_CMD:-pbcopy})\"
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--preview=\"$preview_cmd\"
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$FORGIT_LOG_FZF_OPTS
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"
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graph=--graph
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[[ $FORGIT_LOG_GRAPH_ENABLE == false ]] && graph=
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log_format=${FORGIT_GLO_FORMAT:-$_forgit_log_format}
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eval "git log $graph --color=always --format='$log_format' $* $_forgit_emojify" |
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FZF_DEFAULT_OPTS="$opts" fzf
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fzf_exit_code=$?
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# exit successfully on 130 (ctrl-c/esc)
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[[ $fzf_exit_code == 130 ]] && return 0
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return $fzf_exit_code
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}
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# git diff viewer
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_forgit_diff() {
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_forgit_inside_work_tree || return 1
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local files opts commits repo get_files preview_cmd enter_cmd
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[[ $# -ne 0 ]] && {
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if git rev-parse "$1" -- &>/dev/null ; then
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if [[ $# -gt 1 ]] && git rev-parse "$2" -- &>/dev/null; then
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commits="$1 $2" && files=("${@:3}")
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else
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commits="$1" && files=("${@:2}")
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fi
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else
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files=("$@")
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fi
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}
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repo="$(git rev-parse --show-toplevel)"
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get_files="cd '$repo' && echo {} | sed 's/.*] *//' | sed 's/ -> / /'"
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# Git stashes are named "stash@{x}", which contains the fzf placeholder "{x}".
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# In order to support passing stashes as arguments to _forgit_diff, we have to
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# prevent fzf from interpreting this substring by escaping the opening bracket.
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# The string is evaluated a few subsequent times, so we need multiple escapes.
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escaped_commits=${commits//\{/\\\\\{}
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preview_cmd="$get_files | xargs -I% git diff --color=always -U$_forgit_preview_context $escaped_commits -- % | $_forgit_diff_pager"
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enter_cmd="$get_files | xargs -I% git diff --color=always -U$_forgit_fullscreen_context $escaped_commits -- % | $_forgit_diff_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+m -0 --bind=\"enter:execute($enter_cmd | $_forgit_enter_pager)\"
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--preview=\"$preview_cmd\"
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$FORGIT_DIFF_FZF_OPTS
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--prompt=\"$commits > \"
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"
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eval "git diff --name-status $commits -- ${files[*]} | sed -E 's/^([[:alnum:]]+)[[:space:]]+(.*)$/[\1]\t\2/'" |
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sed 's/\t/ -> /2' | expand -t 8 |
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FZF_DEFAULT_OPTS="$opts" fzf
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fzf_exit_code=$?
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# exit successfully on 130 (ctrl-c/esc)
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[[ $fzf_exit_code == 130 ]] && return 0
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return $fzf_exit_code
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}
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# git add selector
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_forgit_add() {
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_forgit_inside_work_tree || return 1
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# Add files if passed as arguments
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[[ $# -ne 0 ]] && git add "$@" && git status -su && return
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local changed unmerged untracked files opts preview extract
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changed=$(git config --get-color color.status.changed red)
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unmerged=$(git config --get-color color.status.unmerged red)
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untracked=$(git config --get-color color.status.untracked red)
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# NOTE: paths listed by 'git status -su' mixed with quoted and unquoted style
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# remove indicators | remove original path for rename case | remove surrounding quotes
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extract="
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sed 's/^.*] //' |
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sed 's/.* -> //' |
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sed -e 's/^\\\"//' -e 's/\\\"\$//'"
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preview="
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file=\$(echo {} | $extract)
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if (git status -s -- \$file | grep '^??') &>/dev/null; then # diff with /dev/null for untracked files
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git diff --color=always --no-index -- /dev/null \$file | $_forgit_diff_pager | sed '2 s/added:/untracked:/'
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else
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git diff --color=always -- \$file | $_forgit_diff_pager
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fi"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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-0 -m --nth 2..,..
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--preview=\"$preview\"
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$FORGIT_ADD_FZF_OPTS
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"
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files=$(git -c color.status=always -c status.relativePaths=true status -su |
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grep -F -e "$changed" -e "$unmerged" -e "$untracked" |
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sed -E 's/^(..[^[:space:]]*)[[:space:]]+(.*)$/[\1] \2/' |
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FZF_DEFAULT_OPTS="$opts" fzf |
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sh -c "$extract")
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[[ -n "$files" ]] && echo "$files"| tr '\n' '\0' |xargs -0 -I% git add % && git status -su && return
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echo 'Nothing to add.'
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}
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# git reset HEAD (unstage) selector
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_forgit_reset_head() {
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_forgit_inside_work_tree || return 1
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local cmd files opts
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cmd="git diff --cached --color=always -- {} | $_forgit_diff_pager "
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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-m -0
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--preview=\"$cmd\"
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$FORGIT_RESET_HEAD_FZF_OPTS
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"
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files="$(git diff --cached --name-only --relative | FZF_DEFAULT_OPTS="$opts" fzf)"
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[[ -n "$files" ]] && echo "$files" | tr '\n' '\0' | xargs -0 -I% git reset -q HEAD % && git status --short && return
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echo 'Nothing to unstage.'
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}
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# git stash viewer
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_forgit_stash_show() {
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_forgit_inside_work_tree || return 1
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local cmd opts
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cmd="echo {} |cut -d: -f1 |xargs -I% git stash show --color=always --ext-diff % |$_forgit_diff_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m -0 --tiebreak=index --bind=\"enter:execute($cmd | $_forgit_enter_pager)\"
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--preview=\"$cmd\"
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$FORGIT_STASH_FZF_OPTS
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"
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git stash list | FZF_DEFAULT_OPTS="$opts" fzf
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fzf_exit_code=$?
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# exit successfully on 130 (ctrl-c/esc)
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[[ $fzf_exit_code == 130 ]] && return 0
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return $fzf_exit_code
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}
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# git clean selector
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_forgit_clean() {
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_forgit_inside_work_tree || return 1
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local files opts
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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-m -0
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$FORGIT_CLEAN_FZF_OPTS
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"
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# Note: Postfix '/' in directory path should be removed. Otherwise the directory itself will not be removed.
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files=$(git clean -xdffn "$@"| sed 's/^Would remove //' | FZF_DEFAULT_OPTS="$opts" fzf |sed 's#/$##')
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[[ -n "$files" ]] && echo "$files" | tr '\n' '\0' | xargs -0 -I% git clean -xdff '%' && git status --short && return
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echo 'Nothing to clean.'
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}
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_forgit_cherry_pick() {
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local base target preview opts fzf_selection fzf_exitval
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base=$(git branch --show-current)
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[[ -z $1 ]] && echo "Please specify target branch" && return 1
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target="$1"
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preview="echo {} | $_forgit_extract_sha | xargs -I% git show --color=always % | $_forgit_show_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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--preview=\"$preview\"
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-m -0 --tiebreak=index
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$FORGIT_CHERRY_PICK_FZF_OPTS
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"
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fzf_selection=$(git cherry "$base" "$target" --abbrev -v | _forgit_reverse_lines |
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FZF_DEFAULT_OPTS="$opts" fzf)
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fzf_exitval=$?
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[[ $fzf_exitval != 0 ]] && return $fzf_exitval
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commits=()
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while IFS="" read -r line
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do
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commits+=("$line")
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done < <(echo "$fzf_selection" | _forgit_reverse_lines | cut -d' ' -f2)
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git cherry-pick "${commits[@]}"
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}
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_forgit_cherry_pick_from_branch() {
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_forgit_inside_work_tree || return 1
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[[ $# -ne 0 ]] && { git checkout -b "$@"; return $?; }
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local cmd preview opts branch exitval
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cmd="git branch --color=always --all | LC_ALL=C sort -k1.1,1.1 -rs"
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preview="git log {1} $_forgit_log_preview_options"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m --tiebreak=index --header-lines=1
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--preview=\"$preview\"
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$FORGIT_CHERRY_PICK_FROM_BRANCH_FZF_OPTS
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"
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# loop until either the branch selector is closed or a commit to be cherry
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# picked has been selected from within a branch
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while true
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do
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branch="$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" fzf | awk '{print $1}')"
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[[ -z "$branch" ]] && return 1
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_forgit_cherry_pick "$branch"
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exitval=$?
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[[ $exitval != 130 ]] && return $exitval
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done
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}
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_forgit_rebase() {
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_forgit_inside_work_tree || return 1
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local cmd preview opts graph files target_commit prev_commit
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graph=--graph
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[[ $FORGIT_LOG_GRAPH_ENABLE == false ]] && graph=
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cmd="git log $graph --color=always --format='$_forgit_log_format' $* $_forgit_emojify"
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files=$(sed -nE 's/.* -- (.*)/\1/p' <<< "$*") # extract files parameters for `git show` command
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preview="echo {} | $_forgit_extract_sha | xargs -I% git show --color=always % -- $files | $_forgit_show_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m --tiebreak=index
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--bind=\"ctrl-y:execute-silent(echo {} | $_forgit_extract_sha | ${FORGIT_COPY_CMD:-pbcopy})\"
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--preview=\"$preview\"
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$FORGIT_REBASE_FZF_OPTS
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"
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target_commit=$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" fzf | eval "$_forgit_extract_sha")
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if [[ -n "$target_commit" ]]; then
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prev_commit=$(_forgit_previous_commit "$target_commit")
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git rebase -i "$prev_commit"
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fi
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}
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_forgit_fixup() {
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_forgit_inside_work_tree || return 1
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git diff --cached --quiet && echo 'Nothing to fixup: there are no staged changes.' && return 1
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local cmd preview opts graph files target_commit prev_commit
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graph=--graph
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[[ $FORGIT_LOG_GRAPH_ENABLE == false ]] && graph=
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cmd="git log $graph --color=always --format='$_forgit_log_format' $* $_forgit_emojify"
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files=$(sed -nE 's/.* -- (.*)/\1/p' <<< "$*")
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preview="echo {} | $_forgit_extract_sha | xargs -I% git show --color=always % -- $files | $_forgit_show_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m --tiebreak=index
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--bind=\"ctrl-y:execute-silent(echo {} | $_forgit_extract_sha | ${FORGIT_COPY_CMD:-pbcopy})\"
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--preview=\"$preview\"
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$FORGIT_FIXUP_FZF_OPTS
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"
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target_commit=$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" fzf | eval "$_forgit_extract_sha")
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if [[ -n "$target_commit" ]] && git commit --fixup "$target_commit"; then
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prev_commit=$(_forgit_previous_commit "$target_commit")
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# rebase will fail if there are unstaged changes so --autostash is needed to temporarily stash them
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# GIT_SEQUENCE_EDITOR=: is needed to skip the editor
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GIT_SEQUENCE_EDITOR=: git rebase --autostash -i --autosquash "$prev_commit"
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fi
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}
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# git checkout-file selector
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_forgit_checkout_file() {
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_forgit_inside_work_tree || return 1
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[[ $# -ne 0 ]] && { git checkout -- "$@"; return $?; }
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local cmd files opts
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cmd="git diff --color=always -- {} | $_forgit_diff_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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-m -0
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--preview=\"$cmd\"
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$FORGIT_CHECKOUT_FILE_FZF_OPTS
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"
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files="$(git ls-files --modified "$(git rev-parse --show-toplevel)"| FZF_DEFAULT_OPTS="$opts" fzf)"
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[[ -n "$files" ]] && echo "$files" | tr '\n' '\0' | xargs -0 -I% git checkout %
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}
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# git checkout-branch selector
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_forgit_checkout_branch() {
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_forgit_inside_work_tree || return 1
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# if called with arguments, check if branch exists, else create a new one
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if [[ $# -ne 0 ]]; then
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if git show-branch "$@" &>/dev/null; then
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git switch "$@"
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else
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git switch -c "$@"
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fi
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checkout_status=$?
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git status --short
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return $checkout_status
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fi
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local cmd preview opts branch
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cmd="git branch --color=always --all | LC_ALL=C sort -k1.1,1.1 -rs"
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preview="git log {1} $_forgit_log_preview_options"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m --tiebreak=index --header-lines=1
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--preview=\"$preview\"
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$FORGIT_CHECKOUT_BRANCH_FZF_OPTS
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"
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branch="$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" fzf | awk '{print $1}')"
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[[ -z "$branch" ]] && return 1
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# track the remote branch if possible
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if [[ "$branch" == "remotes/origin/"* ]]; then
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if git branch | grep -qw "${branch#remotes/origin/}"; then
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# hack to force creating a new branch which tracks the remote if a local branch already exists
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git checkout -b "track/${branch#remotes/origin/}" --track "$branch"
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elif ! git checkout --track "$branch" 2>/dev/null; then
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git checkout "$branch"
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fi
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else
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git checkout "$branch"
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fi
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}
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# git checkout-tag selector
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_forgit_checkout_tag() {
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_forgit_inside_work_tree || return 1
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[[ $# -ne 0 ]] && { git checkout "$@"; return $?; }
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local cmd opts preview
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cmd="git tag -l --sort=-v:refname"
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preview="git log {1} $_forgit_log_preview_options"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m --tiebreak=index
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--preview=\"$preview\"
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$FORGIT_CHECKOUT_TAG_FZF_OPTS
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"
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tag="$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" fzf)"
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[[ -z "$tag" ]] && return 1
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git checkout "$tag"
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}
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# git checkout-commit selector
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_forgit_checkout_commit() {
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_forgit_inside_work_tree || return 1
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[[ $# -ne 0 ]] && { git checkout "$@"; return $?; }
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local cmd opts graph
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cmd="echo {} | $_forgit_extract_sha |xargs -I% git show --color=always % | $_forgit_show_pager"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s +m --tiebreak=index
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--bind=\"ctrl-y:execute-silent(echo {} | $_forgit_extract_sha | ${FORGIT_COPY_CMD:-pbcopy})\"
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--preview=\"$cmd\"
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$FORGIT_COMMIT_FZF_OPTS
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"
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graph=--graph
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[[ $FORGIT_LOG_GRAPH_ENABLE == false ]] && graph=
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eval "git log $graph --color=always --format='$_forgit_log_format' $_forgit_emojify" |
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FZF_DEFAULT_OPTS="$opts" fzf | eval "$_forgit_extract_sha" | xargs -I% git checkout % --
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}
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_forgit_branch_delete() {
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_forgit_inside_work_tree || return 1
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local preview opts cmd branches
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preview="git log {1} $_forgit_log_preview_options"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s --multi --tiebreak=index --header-lines=1
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--preview=\"$preview\"
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$FORGIT_BRANCH_DELETE_FZF_OPTS
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"
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cmd="git branch --color=always | LC_ALL=C sort -k1.1,1.1 -rs"
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branches=$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" fzf | awk '{print $1}')
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echo -n "$branches" | tr '\n' '\0' | xargs -I{} -0 git branch -D {}
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}
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# git revert-commit selector
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_forgit_revert_commit() {
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_forgit_inside_work_tree || return 1
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[[ $# -ne 0 ]] && { git revert "$@"; return $?; }
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local cmd opts files preview commits IFS
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cmd="git log --graph --color=always --format='$_forgit_log_format' $* $_forgit_emojify"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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+s --tiebreak=index
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$FORGIT_REVERT_COMMIT_OPTS
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"
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files=$(sed -nE 's/.* -- (.*)/\1/p' <<< "$*") # extract files parameters for `git show` command
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preview="echo {} | $_forgit_extract_sha | xargs -I% git show --color=always % -- $files | $_forgit_show_pager"
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# shellcheck disable=2207
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IFS=$'\n' commits=($(eval "$cmd" |
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FZF_DEFAULT_OPTS="$opts" fzf --preview="$preview" -m |
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sed 's/^[^a-f^0-9]*\([a-f0-9]*\).*/\1/'))
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[ ${#commits[@]} -eq 0 ] && return 1
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for commit in "${commits[@]}"; do
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git revert "$commit"
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done
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}
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# git blame viewer
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_forgit_blame() {
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_forgit_inside_work_tree || return 1
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[[ $# -ne 0 ]] && git blame "$@" && return 0
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local opts flags preview file
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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$FORGIT_BLAME_FZF_OPTS
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"
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flags=$(git rev-parse --flags "$@")
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preview="
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if (git ls-files {} --error-unmatch) &>/dev/null; then
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git blame {} --date=short $flags | $_forgit_blame_pager
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else
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echo File not tracked
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fi
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"
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file=$(FZF_DEFAULT_OPTS="$opts" fzf --preview="$preview")
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[[ -z "$file" ]] && return 1
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eval git blame "$file" "$flags"
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}
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# git ignore generator
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export FORGIT_GI_REPO_REMOTE=${FORGIT_GI_REPO_REMOTE:-https://github.com/dvcs/gitignore}
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export FORGIT_GI_REPO_LOCAL="${FORGIT_GI_REPO_LOCAL:-${XDG_CACHE_HOME:-$HOME/.cache}/forgit/gi/repos/dvcs/gitignore}"
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export FORGIT_GI_TEMPLATES=${FORGIT_GI_TEMPLATES:-$FORGIT_GI_REPO_LOCAL/templates}
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_forgit_ignore() {
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[ -d "$FORGIT_GI_REPO_LOCAL" ] || _forgit_ignore_update
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local IFS cmd args opts
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cmd="$_forgit_ignore_pager $FORGIT_GI_TEMPLATES/{2}{,.gitignore} 2>/dev/null"
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opts="
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$FORGIT_FZF_DEFAULT_OPTS
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-m --preview-window='right:70%'
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--preview=\"eval $cmd\"
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$FORGIT_IGNORE_FZF_OPTS
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"
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# shellcheck disable=SC2206,2207
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IFS=$'\n' args=($@) && [[ $# -eq 0 ]] && args=($(_forgit_ignore_list | nl -nrn -w4 -s' ' |
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FZF_DEFAULT_OPTS="$opts" fzf | awk '{print $2}'))
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[ ${#args[@]} -eq 0 ] && return 1
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# shellcheck disable=SC2068
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_forgit_ignore_get ${args[@]}
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}
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_forgit_ignore_update() {
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if [[ -d "$FORGIT_GI_REPO_LOCAL" ]]; then
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_forgit_info 'Updating gitignore repo...'
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(cd "$FORGIT_GI_REPO_LOCAL" && git pull --no-rebase --ff) || return 1
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else
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_forgit_info 'Initializing gitignore repo...'
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git clone --depth=1 "$FORGIT_GI_REPO_REMOTE" "$FORGIT_GI_REPO_LOCAL"
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fi
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}
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_forgit_ignore_get() {
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local item filename header
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for item in "$@"; do
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if filename=$(find -L "$FORGIT_GI_TEMPLATES" -type f \( -iname "${item}.gitignore" -o -iname "${item}" \) -print -quit); then
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[[ -z "$filename" ]] && _forgit_warn "No gitignore template found for '$item'." && continue
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header="${filename##*/}" && header="${header%.gitignore}"
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echo "### $header" && cat "$filename" && echo
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fi
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done
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}
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_forgit_ignore_list() {
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find "$FORGIT_GI_TEMPLATES" -print |sed -e 's#.gitignore$##' -e 's#.*/##' | sort -fu
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}
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_forgit_ignore_clean() {
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setopt localoptions rmstarsilent
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[[ -d "$FORGIT_GI_REPO_LOCAL" ]] && rm -rf "$FORGIT_GI_REPO_LOCAL"
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}
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cmd="$1"
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shift
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_forgit_"${cmd}" "$@"
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