229 lines
8.2 KiB
Bash
229 lines
8.2 KiB
Bash
# ------------------------------------------------------------------------------
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# SCM Breeze - Streamline your SCM workflow.
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# Copyright 2011 Nathan Broadbent (http://madebynathan.com). All Rights Reserved.
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# Released under the LGPL (GNU Lesser General Public License)
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Numbered file shortcuts for git commands
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# ------------------------------------------------------------------------------
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# Processes 'git status --porcelain', and exports numbered
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# env variables that contain the path of each affected file.
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# Output is also more concise than standard 'git status'.
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#
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# Call with optional <group> parameter to filter by modification state:
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# 1 || staged, 2 || unmerged, 3 || unstaged, 4 || untracked
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# --------------------------------------------------------------------
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git_status_shortcuts() {
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# Fail if not a git repo
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if ! find_in_cwd_or_parent ".git" > /dev/null; then
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echo -e "\e[31mNot a git repository (or any of the parent directories)\e[0m"
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return 1
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fi
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zsh_compat # Ensure shwordsplit is on for zsh
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git_clear_vars
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# Run ruby script, store output
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local cmd_output="$(/usr/bin/env ruby "$scmbDir/lib/git/status_shortcuts.rb" $@)"
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# Print debug information if $scmbDebug = "true"
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if [ "${scmbDebug:-}" = "true" ]; then
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printf "status_shortcuts.rb output => \n$cmd_output\n------------------------\n"
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fi
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if [[ -z "$cmd_output" ]]; then
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# Just show regular git status if ruby script returns nothing.
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git status
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echo -e "\n\e[33mThere were more than $gs_max_changes changed files. SCM Breeze has fallen back to standard \`git status\` for performance reasons.\e[0m"
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return 1
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fi
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# Fetch list of files from last line of script output
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files="$(echo "$cmd_output" | \grep '@@filelist@@::' | sed 's%@@filelist@@::%%g')"
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if [ "${scmbDebug:-}" = "true" ]; then echo "filelist => $files"; fi
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# Export numbered env variables for each file
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IFS="|"
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local e=1
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for file in $files; do
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export $git_env_char$e="$file"
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if [ "${scmbDebug:-}" = "true" ]; then echo "Set \$$git_env_char$e => $file"; fi
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let e++
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done
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IFS=$' \t\n'
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if [ "${scmbDebug:-}" = "true" ]; then echo "------------------------"; fi
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# Print status
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echo "$cmd_output" | \grep -v '@@filelist@@::'
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zsh_reset # Reset zsh environment to default
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}
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# 'git add' & 'git rm' wrapper
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# This shortcut means 'stage the change to the file'
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# i.e. It will add new and changed files, and remove deleted files.
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# Should be used in conjunction with the git_status_shortcuts() function for 'git status'.
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# - 'auto git rm' behaviour can be turned off
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# -------------------------------------------------------------------------------
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git_add_shortcuts() {
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if [ -z "$1" ]; then
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echo "Usage: ga <file> => git add <file>"
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echo " ga 1 => git add \$e1"
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echo " ga 2-4 => git add \$e2 \$e3 \$e4"
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echo " ga 2 5-7 => git add \$e2 \$e5 \$e6 \$e7"
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if [[ $ga_auto_remove == "yes" ]]; then
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echo -e "\nNote: Deleted files will also be staged using this shortcut."
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echo " To turn off this behaviour, change the 'auto_remove' option."
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fi
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else
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git_silent_add_shortcuts "$@"
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# Makes sense to run 'git status' after this command.
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git_status_shortcuts
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fi
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}
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# Does nothing if no args are given.
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git_silent_add_shortcuts() {
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if [ -n "$1" ]; then
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# Expand args and process resulting set of files.
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IFS=$'\t'
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for file in $(scmb_expand_args "$@"); do
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# Use 'git rm' if file doesn't exist and 'ga_auto_remove' is enabled.
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if [[ $ga_auto_remove == "yes" ]] && ! [ -e "$file" ]; then
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echo -n "# "
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git rm "$file"
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else
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git add "$file"
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echo -e "# Added '$file'"
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fi
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done
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IFS=$' \t\n'
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echo "#"
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fi
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}
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# Prints a list of all files affected by a given SHA1,
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# and exports numbered environment variables for each file.
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git_show_affected_files(){
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f=0 # File count
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# Show colored revision and commit message
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echo -n "# "; git show --oneline --name-only $@ | head -n1; echo "# "
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for file in $(git show --pretty="format:" --name-only $@ | \grep -v '^$'); do
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let f++
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export $git_env_char$f=$file # Export numbered variable.
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echo -e "# \e[2;37m[\e[0m$f\e[2;37m]\e[0m $file"
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done; echo "# "
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}
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# Allows expansion of numbered shortcuts, ranges of shortcuts, or standard paths.
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# Numbered shortcut variables are produced by various commands, such as:
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# * git_status_shortcuts() - git status implementation
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# * git_show_affected_files() - shows files affected by a given SHA1, etc.
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scmb_expand_args() {
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first=1
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OLDIFS="$IFS"; IFS=" " # We need to split on spaces to loop over expanded range
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for arg in "$@"; do
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if [[ "$arg" =~ ^[0-9]+$ ]] ; then # Substitute $e{*} variables for any integers
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if [ "$first" -eq 1 ]; then first=0; else printf '\t'; fi
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eval printf '%s' "\"\$$git_env_char$arg\""
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elif [[ "$arg" =~ ^[0-9]+-[0-9]+$ ]]; then # Expand ranges into $e{*} variables
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for i in $(eval echo {${arg/-/..}}); do
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if [ "$first" -eq 1 ]; then first=0; else printf '\t'; fi
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eval printf '%s' "\"\$$git_env_char$i\""
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done
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else # Otherwise, treat $arg as a normal string.
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if [ "$first" -eq 1 ]; then first=0; else printf '\t'; fi
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printf '%s' "$arg"
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fi
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done
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IFS="$OLDIFS"
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}
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# Execute a command with expanded args, e.g. Delete files 6 to 12: $ ge rm 6-12
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# Fails if command is a number or range (probably not worth fixing)
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exec_scmb_expand_args() { eval "$(scmb_expand_args "$@" | sed -e 's/\([][()<>^ ]\)/\\\1/g')"; }
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# Clear numbered env variables
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git_clear_vars() {
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local i
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for (( i=1; i<=$gs_max_changes; i++ )); do
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# Stop clearing after first empty var
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if [[ -z "$(eval echo "\${$git_env_char$i:-}")" ]]; then break; fi
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done
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}
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# Shortcuts for resolving merge conflicts.
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_git_resolve_merge_conflict() {
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if [ -n "$2" ]; then
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# Expand args and process resulting set of files.
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IFS=$'\t'
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for file in $(scmb_expand_args "${@:2}"); do
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git checkout "--$1""s" "$file" # "--$1""s" is expanded to --ours or --theirs
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git add "$file"
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echo -e "# Added $1 version of '$file'"
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done
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IFS=$' \t\n'
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echo -e "# -- If you have finished resolving conflicts, commit the resolutions with 'git commit'"
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fi
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}
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ours(){ _git_resolve_merge_conflict "our" "$@"; }
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theirs(){ _git_resolve_merge_conflict "their" "$@"; }
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# Git commit prompts
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# ------------------------------------------------------------------------------
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# * Prompt for commit message
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# * Execute prerequisite commands if message given, abort if not
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# * Pipe commit message to 'git commit'
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# * Add escaped commit command and unescaped message to bash history.
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git_commit_prompt() {
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local commit_msg
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if [[ $shell == "zsh" ]]; then
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vared -h -p "Commit Message: " commit_msg
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else
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read -r -e -p "Commit Message: " commit_msg
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fi
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if [ -n "$commit_msg" ]; then
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eval $@ # run any prequisite commands
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echo $commit_msg | git commit -F - | tail -n +2
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else
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echo -e "\e[0;31mAborting commit due to empty commit message.\e[0m"
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fi
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escaped=$(echo "$commit_msg" | sed -e 's/"/\\"/g' -e 's/!/"'"'"'!'"'"'"/g')
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if [[ $shell == "zsh" ]]; then
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print -s "git commit -m \"${escaped//\\/\\\\}\"" # zsh's print needs double escaping
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print -s "$commit_msg"
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else
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echo "git commit -m \"$escaped\"" >> $HISTFILE
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# Also add unescaped commit message, for git prompt
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echo "$commit_msg" >> $HISTFILE
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fi
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}
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# Prompt for commit message, then commit all modified and untracked files.
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git_commit_all() {
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changes=$(git status --porcelain | wc -l)
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if [ "$changes" -gt 0 ]; then
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echo -e "\e[0;33mCommitting all files (\e[0;31m$changes\e[0;33m)\e[0m"
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git_commit_prompt "git add -A"
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else
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echo "# No changed files to commit."
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fi
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}
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# Add paths or expanded args if any given, then commit all staged changes.
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git_add_and_commit() {
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git_silent_add_shortcuts "$@"
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changes=$(git diff --cached --numstat | wc -l)
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if [ "$changes" -gt 0 ]; then
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git_status_shortcuts 1 # only show staged changes
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git_commit_prompt
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else
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echo "# No staged changes to commit."
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fi
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}
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