Moves binaries for use with gnu stow
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Jonathan Hodgson
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349
bin/.bin/git/git-recall
Executable file
349
bin/.bin/git/git-recall
Executable file
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#!/usr/bin/env bash
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# usage info
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usage() {
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cat <<EOF
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Usage: git recall [options]
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Options:
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-d, --date Show logs for last n days.
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-a, --author Author name.
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-f, --fetch fetch commits.
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-h, --help This message.
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-v, --version Show version.
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-- End of options.
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EOF
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}
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# Global variables
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SINCE="1 days ago" # show logs for last day by default
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AUTHOR=""
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FETCH=false
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GIT_FORMAT=""
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GIT_LOG=""
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COMMITS=""
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COMMITS_UNCOL=() # commits without colors
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LESSKEY=false
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SED_BIN="" # Sed option to use according OS.
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VERSION="1.1.10"
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# Are we in a git repo?
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if [[ ! -d ".git" ]] && ! git rev-parse --git-dir &>/dev/null; then
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echo "abort: not a git repository." 1>&2
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exit 1
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fi
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# Parse options
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while [[ "$1" =~ ^- && ! "$1" == "--" ]]; do
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case $1 in
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-v | --version )
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echo "$version"
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exit
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;;
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-d | --date )
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SINCE="$2 days ago"
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shift;
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;;
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-a | --author )
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AUTHOR="$2"
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shift
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;;
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-f | --fetch )
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FETCH=true
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;;
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-h | --help )
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usage
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exit
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;;
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* )
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echo "abort: unknown argument" 1>&2
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exit 1
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esac
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shift
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done
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if [[ "$1" == "--" ]]; then shift; fi
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# Colored output.
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function colored() {
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GREEN=$(tput setaf 4)
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YELLOW=$(tput setaf 3)
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NORMAL=$(tput sgr0)
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REVERSE=$(tput rev)
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}
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# Uncolored output.
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function uncolored() {
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GREEN=""
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YELLOW=""
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NORMAL=""
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REVERSE=""
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}
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# Enable colors if supported by terminal.
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if [[ -t 1 ]] && [[ -n "$TERM" ]] && which tput &>/dev/null && tput colors &>/dev/null; then
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ncolors=$(tput colors)
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if [[ -n "$ncolors" ]] && [[ "$ncolors" -ge 8 ]] ; then
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colored
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else
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uncolored
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fi
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else
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uncolored
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fi
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# Check if lesskey is installed.
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if command -v lesskey &> /dev/null; then
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LESSKEY=true
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fi
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# Set AUTHOR to current user if no param passed or display for all users if param equal to "all".
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if [[ ! -n $AUTHOR ]]; then
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AUTHOR=$(git config user.name 2>/dev/null)
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elif [[ $AUTHOR = "all" ]]; then
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AUTHOR=".*"
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fi
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# Fetch changes before.
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if [[ $FETCH == true ]]; then
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echo "${GREEN}Fetching changes...${NORMAL}"
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git fetch --all &> /dev/null
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tput cuu1
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tput ed # clear screen
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fi
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# Log template.
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GIT_FORMAT="%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset"
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# Log command.
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GIT_LOG="git log --pretty=format:'${GIT_FORMAT}'
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--author \"$AUTHOR\"
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--since \"$SINCE\" --abbrev-commit"
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# Change temporary the IFS to store GIT_LOG's output into an array.
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IFS=$'\n'
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COMMITS=($(eval ${GIT_LOG} 2>/dev/null))
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unset IFS
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NI=${#COMMITS[@]} # Total number of items.
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SN=$(( `tput lines` - 1 )) # Screen's number of lines.
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CN=$(tput cols) # Screen's number of columns.
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TN=$(( $NI < $((SN -1)) ? $NI : $((SN -1)))) # Number of lines that we will display.
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OFFSET=0 #Incremented by one each time a commit's length is higher than teminal width.
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# If there is no items, exit.
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if [[ $NI = 0 ]]; then
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if [[ $AUTHOR = ".*" ]]; then
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echo "${YELLOW}All contributors did nothing during this period.${NORMAL}" && exit 0
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else
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echo "${YELLOW}The contributor \"${AUTHOR}\" did nothing during this period.${NORMAL}" && exit 0
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fi
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fi
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# Set correct sed option according OS's type
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case "$OSTYPE" in
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darwin*) SED_BIN="sed -E" ;;
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*) SED_BIN="sed -r" ;;
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esac
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# Create array with uncolred commits (removing escape sequences using sed)
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for elt in "${COMMITS[@]}"
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do
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ELT="$(echo "$elt" | $SED_BIN "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g")" # remove colors escape codes
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COMMITS_UNCOL+=("$ELT")
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done
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# Add +1 to OFFSET if a commit's length is bigger than the current terminal session's width. (This is to fix a redraw issue)
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for C in "${COMMITS_UNCOL[@]}"
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do
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if [[ ${#C} -gt $CN ]]; then
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OFFSET=$(( OFFSET + 1 ))
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fi
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done
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# Set keys.
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au="`echo -e '\e[A'`" # arrow up
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au_1="k" # arrow up
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ad="`echo -e '\e[B'`" # arrow down
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ad_1="j" # arrow down
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ec="`echo -e '\e'`" # escape
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nl="`echo -e '\n'`" # newline
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nl_1="e" # expand
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co="c" # checkout
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# Create a temporary lesskey file to change the keybindings so the user can use the TAB key to quit less. (more convenient)
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if [[ $LESSKEY = true ]]; then
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echo "\t quit" | lesskey -o $HOME/.lsh_less_keys_tmp -- - &> /dev/null
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fi
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## Get commit's diff.
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function get_diff() {
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ELT="$(echo "${COMMITS_UNCOL[$CP-1]}")"
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DIFF_TIP=${ELT:0:7}
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DIFF_CMD="git show $DIFF_TIP --color=always"
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DIFF=$(eval ${DIFF_CMD} 2>/dev/null)
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tmp_diff="$(echo "$DIFF" | $SED_BIN "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g")" # remove colors escape codes
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off=$(echo "$tmp_diff" | grep -c ".\{$CN\}") #Number of lines in the diff that are longer than terminal width.
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DIFF_LINES_NUMBER="$(echo "$DIFF" | wc -l)"
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DIFF_LINES_NUMBER=$(( DIFF_LINES_NUMBER + off ))
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}
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## This function will print the diff according the commit's tip. If the diff is too long, the result will be displayed using 'less'.
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function print_diff() {
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get_diff # get commit's diff
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if [[ $(( TN + DIFF_LINES_NUMBER + OFFSET )) -ge $(( `tput lines` - 1 )) ]]; then
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if [[ $LESSKEY = true ]]; then
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echo "$DIFF" | less -r -k $HOME/.lsh_less_keys_tmp
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else
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echo "$DIFF" | less -r
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fi
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tput ed # Clear screen
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else
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stop=false
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tput ed
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for i in `seq 1 $TN`
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do
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echo -n "$NORMAL"
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[[ $CP == "$i" ]] && echo -n "$REVERSE"
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echo "${COMMITS[$i - 1]}"
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[[ $CP == "$i" ]] && echo "$DIFF"
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done
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# Wait for user action.
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while ! $stop
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do
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read -sn 1 key
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case "$key" in
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"$nl" | "$nl_1")
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stop=true
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;;
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"q")
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stop=true
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END=true
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;;
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esac
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done
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[[ $END = false ]] && tput cuu $(( TN + DIFF_LINES_NUMBER + OFFSET )) && tput ed
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[[ $END = true ]] && tput cuu 1
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fi
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}
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function do_checkout(){
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ELT="$(echo "${COMMITS_UNCOL[$CP-1]}")"
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DIFF_TIP=${ELT:0:7}
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eval "git checkout $DIFF_TIP 2> /dev/null"
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}
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# Calculate OFFSET to avoid bad redraw.
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function calculate_offset {
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tmp=1
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index=$(( SI -1 ))
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while [[ $tmp -lt $SN ]]
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do
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el=${COMMITS_UNCOL[$index]}
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if [[ ${#el} -gt $CN ]] && [[ $CP -lt $((SN -1)) ]]; then
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OFFSET_2=$(( OFFSET_2 + 1 ))
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tmp=$(( tmp + 1 ))
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fi
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tmp=$(( tmp + 1 ))
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index=$(( index + 1 ))
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done
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}
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{ # capture stdout to stderr
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tput civis # hide cursor.
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CP=1 # current position
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SI=1 # index
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END=false # end while loop
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EXT=0 # Used to extend the number of lines to display.
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## Loops, reads inputs and prints commits until user presses 'q' to exit or TAB to show the diff.
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while ! $END
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do
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END_INDEX=0 # Index for the last item to display
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# When the number of item is higher than screen's number of lines, OFFSET_2 is recalculated each time we select a new item
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# Set last index to print. (based on OFFSET)
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if [[ $TN == $NI ]]; then
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END_INDEX=$TN
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OFFSET_2=$OFFSET
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elif [[ $TN == $(( SN - 1 )) ]]; then
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# Calculate new OFFSET.
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if [[ $OFFSET != 0 ]]; then
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[[ $CP -lt $((SN -1)) ]] && OFFSET_2=0
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EXT=1
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calculate_offset
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fi
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END_INDEX=$(( TN + SI -1 + EXT - OFFSET_2 ))
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fi
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# Loop and echo commits
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for i in `seq $SI $END_INDEX`
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do
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echo -n "$NORMAL"
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[[ $CP == $i ]] && echo -n "$REVERSE"
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echo "${COMMITS[$i - 1]}"
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done
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read -sn 1 key
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[[ "$key" == "$ec" ]] &&
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{
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read -sn 2 k2
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key="$key$k2"
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}
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case "$key" in
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"$au" | "$au_1")
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CP=$(( CP - 1 ))
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[[ $CP == 0 ]] && [[ $SI == 1 ]] && [[ $TN == $(( SN - 1 )) ]] && CP=$NI && SI=$(( NI - SN + 2 + OFFSET_2 ))
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[[ $CP == 0 ]] && [[ $SI == 1 ]] && [[ $TN == $NI ]] && CP=$TN
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[[ $CP == $(( SI - 1 )) ]] && [[ $SI != 1 ]] && SI=$(( SI - 1 ))
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[[ $TN != $(( SN - 1 )) ]] && tput cuu $(( TN + OFFSET_2 ))
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[[ $TN == $(( SN - 1 )) ]] && tput cuu $(( TN + EXT ))
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[[ $SI != 1 ]] && tput ed # clear screen
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;;
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"$ad" | "$ad_1")
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CP=$(( CP + 1 ))
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[[ $CP == $(( NI + 1 )) ]] && CP=1 && SI=1
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[[ $CP == $(( SN + SI - 1 + EXT - OFFSET_2 )) ]] && [[ $TN == $(( SN - 1 )) ]] && SI=$(( SI + 1 ))
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[[ $TN != $(( SN - 1 )) ]] && tput cuu $(( TN + OFFSET_2 ))
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[[ $TN == $(( SN - 1 )) ]] && tput cuu $(( TN + EXT ))
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[[ $SI != 1 ]] && tput ed # clear screen
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[[ $SI = 1 ]] && [[ $CP = 1 ]] && tput ed # clear screen
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;;
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"$nl" | "$nl_1")
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[[ $TN == $NI ]] && tput cuu $(( TN + OFFSET_2 ))
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[[ $TN != $NI ]] && tput cuu $(( TN + EXT ))
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print_diff
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;;
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"$co")
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si=false
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END=true
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do_checkout
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tput cuu 1 #move cursor up one line. (remove extra line)
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;;
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"q")
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si=false
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END=true
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tput cuu 1 #move cursor up one line. (remove extra line)
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;;
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* )
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tput cuu $(( TN + OFFSET_2 ))
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esac
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done
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# remove temporary less keybindings
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[[ $LESSKEY = true ]] && rm $HOME/.lsh_less_keys_tmp
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tput cnorm # unhide cursor
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echo "$NORMAL" # normal colors
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} >&2 # END capture
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