mirror of
https://github.com/eth-p/bat-extras.git
synced 2024-12-13 09:40:42 +01:00
bat-modules: Start work on bat-modules script
This commit is contained in:
Ethan P
parent
9c489732e6
commit
c5927f72af
14
lib/dsl.sh
14
lib/dsl.sh
@ -28,6 +28,10 @@ dsl_parse_file() {
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# dsl_on_command_commit -- Called after commands and their options.
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# dsl_on_option "$option" "$arg1" "$arg2" ... -- Called on option lines.
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#
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# Variables:
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# DSL_LINE_NUMBER -- The line number being parsed at the time of a callback.
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# DSL_COMMAND -- The command being parsed at the time of a callback.
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#
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# Input:
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# The DSL data to parse.
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dsl_parse() {
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@ -37,7 +41,11 @@ dsl_parse() {
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local indent
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local command
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DSL_LINE_NUMBER=0
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DSL_COMMAND=''
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while IFS='' read -r line_raw; do
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((DSL_LINE_NUMBER++)) || true
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# Parse the indentation.
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# If the indentation is greater than zero, it's considered an option.
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[[ "$line_raw" =~ ^( |[[:space:]]{2,}) ]]
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@ -50,11 +58,11 @@ dsl_parse() {
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# Call the appropriate on_* function.
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if [[ "${#indent}" -eq 0 ]]; then
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if [[ -n "$command" ]]; then
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if [[ -n "$DSL_COMMAND" ]]; then
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dsl_on_command_commit
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fi
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command="${line_fields[0]}"
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DSL_COMMAND="${line_fields[0]}"
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dsl_on_command "${line_fields[@]}"
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else
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dsl_on_option "${line_fields[@]}"
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@ -66,7 +74,7 @@ dsl_parse() {
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dsl_on_raw "$indent" "$line"
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done
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if [[ -n "$command" ]]; then
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if [[ -n "$DSL_COMMAND" ]]; then
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dsl_on_command_commit
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fi
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}
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199
src/bat-modules.sh
Executable file
199
src/bat-modules.sh
Executable file
@ -0,0 +1,199 @@
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#!/usr/bin/env bash
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# -----------------------------------------------------------------------------
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# bat-extras | Copyright (C) 2020 eth-p | MIT License
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#
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# Repository: https://github.com/eth-p/bat-extras
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# Issues: https://github.com/eth-p/bat-extras/issues
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# -----------------------------------------------------------------------------
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# shellcheck disable=SC1090
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LIB="$(cd "$(dirname "${BASH_SOURCE[0]}")" && cd "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo ".")")/../lib" && pwd)"
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source "${LIB}/constants.sh"
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source "${LIB}/print.sh"
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source "${LIB}/opt.sh"
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source "${LIB}/opt_hook_color.sh"
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source "${LIB}/opt_hook_version.sh"
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source "${LIB}/dsl.sh"
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source "${LIB}/str.sh"
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# -----------------------------------------------------------------------------
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# Init:
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# -----------------------------------------------------------------------------
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hook_color
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hook_version
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# -----------------------------------------------------------------------------
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COMMON_URL_GITHUB="https://github.com/%s.git"
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COMMON_URL_GITLAB="https://gitlab.com/%s.git"
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MODULES_FILE="$(bat --config-dir)/modules.txt"
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# -----------------------------------------------------------------------------
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# Options:
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# -----------------------------------------------------------------------------
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ACTION="help"
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# Parse arguments.
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while shiftopt; do
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case "$OPT" in
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--help) ACTION="help" ;;
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--update) ACTION="update" ;;
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--clear) ACTION="clear" ;;
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--setup) ACTION="setup" ;;
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# ???
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-*) {
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printc "%{RED}%s: unknown option '%s'%{CLEAR}\n" "$PROGRAM" "$OPT" 1>&2
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exit 1
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} ;;
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esac
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done
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# -----------------------------------------------------------------------------
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# Functions:
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# -----------------------------------------------------------------------------
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# Ensures that the modules file at $MODULES_FILE exists.
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# If it doesn't, this will print a friendly warning and exit with exit code 1.
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ensure_setup() {
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if ! [[ -f "$MODULES_FILE" ]]; then
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printc "%{YELLOW}The bat-modules modules file wasn't found.%{CLEAR}\n"
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printc "%{YELLOW}Use %{CLEAR}%s --setup%{YELLOW} to set up bat-modules, or%{CLEAR}\n" "${PROGRAM}"
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printc "%{YELLOW}read the documentation at %{CLEAR}%s%{YELLOW} for more info.%{CLEAR}\n" "${PROGRAM_HOMEPAGE}"
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exit 1
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fi
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}
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# Prints an error message that parsing
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fail_parsing() {
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print_warning "Failed to parse bat-modules file."
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print_warning "Line %s: %s" "$DSL_LINE" "$1"
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exit 1
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}
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# -----------------------------------------------------------------------------
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# Parsing:
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# -----------------------------------------------------------------------------
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dsl_on_command() {
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BM_TYPE="$(tolower "$1")"
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BM_SOURCE="$(parse_source "$2")"
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BM_OPT_CHECKOUT="master"
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case "$BM_TYPE" in
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"syntax" | "theme") : ;;
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*) fail "unknown module type '$BM_TYPE'" ;;
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esac
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}
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dsl_on_option() {
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# Common options.
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case "$(tolower "$1")" in
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checkout)
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BM_OPT_CHECKOUT="$2"
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return 0 ;;
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esac
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# Type-specific options.
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case "$BM_TYPE" in
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"syntax") on_option_for_syntax "$@" && return 0 ;;
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"theme") on_option_for_theme "$@" && return 0 ;;
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esac
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# Unknown options.
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fail "unknown %s option '%s'" "$BM_TYPE" "$*"
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}
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on_option_for_syntax() {
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:
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}
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on_option_for_theme() {
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:
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}
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# Parses a module source.
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# This takes a git url or pseudo-URL patterns such as:
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#
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# example/my-syntax-on-github
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# github:example/my-syntax
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# gitlab:example/my-syntax
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#
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# Arguments:
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# 1 -- The source string.
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parse_source() {
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local source="$1"
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# shellcheck disable=SC2059
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case "$source" in
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"github:"* | "gh:"*)
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source="$(printf "$COMMON_URL_GITHUB" "$(cut -d':' -f2- <<< "$source")")"
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;;
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"gitlab:"* | "gl:"*)
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source="$(printf "$COMMON_URL_GITLAB" "$(cut -d':' -f2- <<< "$source")")"
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;;
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*)
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if [[ "$1" =~ ^([A-Za-z0-9-])+/([A-Za-z0-9-])+$ ]]; then
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parse_source "github:$1" "${@:2}"
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return $?
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fi
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;;
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esac
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echo "$source"
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}
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# Parses the clone directory name of a git repo URL.
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# Arguments:
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# 1 -- The repo URL.
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parse_source_name() {
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basename "$1" .git
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}
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# -----------------------------------------------------------------------------
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# Actions:
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# -----------------------------------------------------------------------------
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action:setup() {
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if ! [[ -f "$MODULES_FILE" ]]; then
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cat > "$MODULES_FILE" <<-EOF
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# bat-modules example file.
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# See ${PROGRAM_HOMEPAGE} for documentation and help.
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# syntax example/syntax
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# theme https://github.com/example/theme.git
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# checkout abcdef1
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EOF
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fi
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"${EDITOR:-vi}" "$MODULES_FILE"
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}
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action:help() {
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{
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printc "%{YELLOW}%s help:%{CLEAR}\n" "$PROGRAM"
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printc " --clear -- Clear the cached themes and syntaxes.\n"
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printc " --update -- Update themes and syntaxes.\n"
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} 1>&2
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}
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action:clear() {
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printc "%{YELLOW}Clearing bat syntax and theme cache...%{CLEAR}\n"
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"$EXECUTABLE_BAT" cache --clear
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}
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action:update() {
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dsl_on_command_commit() {
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echo "$BM_SOURCE"
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}
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# Parse the DSL.
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ensure_setup
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dsl_parse_file "$MODULES_FILE"
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}
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# -----------------------------------------------------------------------------
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# Main:
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# -----------------------------------------------------------------------------
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action:"$ACTION"
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exit $?
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