groundwork laid (not functional yet)
This commit is contained in:
parent
abec4c2ba0
commit
001a9735ee
6 changed files with 370 additions and 267 deletions
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@ -1,47 +0,0 @@
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use toml::{Table, Value};
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#[derive(Debug, Clone)]
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pub struct Config {
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pub build_dir: String,
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pub compile_commands: bool,
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pub compile_commands_target: String,
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}
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impl Config {
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pub fn get_default() -> Self {
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Config {
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build_dir: String::from("build"),
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compile_commands: false,
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compile_commands_target: String::from(""),
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}
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}
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pub fn set(&mut self, table: &Table) {
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for k in table.keys() {
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match &*k.to_owned() {
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"build_dir" => {
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if let Value::String(s) = table.get(k).unwrap() {
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self.build_dir = s.to_owned();
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} else {
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panic!("error parsing config table: {k} invalid type, must be a string.");
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}
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}
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"compile_commands" => {
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if let Value::Boolean(b) = table.get(k).unwrap() {
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//eprintln!("warn: config.compile_commands has no functionality (yet)");
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self.compile_commands = *b;
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} else {
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panic!("error parsing config table: {k} invalid type, must be a boolean.");
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}
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}
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"compile_commands_target" => {
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if let Value::String(s) = table.get(k).unwrap() {
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self.compile_commands_target = s.to_owned();
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} else {
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panic!("error parsing config table: {k} invalid type, must be a string.");
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}
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}
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_ => panic!("error parsing config table: unrecognized key {k}."),
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}
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}
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}
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}
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106
src/config_file_parsing.rs
Normal file
106
src/config_file_parsing.rs
Normal file
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@ -0,0 +1,106 @@
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use std::fmt::Display;
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use toml::{Table, Value};
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#[derive(Debug)]
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pub struct ConfigFileError<'a> {
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pub key_path: String,
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pub message: &'a str,
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}
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impl Display for ConfigFileError<'_> {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(
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f,
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"config file error: key {}: {}.",
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self.key_path, self.message
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)
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}
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}
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pub fn get_key_as_str<'a>(
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table: &'a Table,
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key: &str,
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key_path: String,
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) -> Result<Option<&'a str>, ConfigFileError<'a>> {
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if let Some(v) = table.get(key) {
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if let Value::String(s) = v {
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Ok(Some(s))
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} else {
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Err(ConfigFileError {
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key_path,
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message: "invalid type, should be string",
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})
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}
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} else {
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Ok(None)
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}
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}
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pub fn get_key_as_table<'a>(
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table: &'a Table,
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key: &str,
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key_path: String,
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) -> Result<Option<&'a Table>, ConfigFileError<'a>> {
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if let Some(v) = table.get(key) {
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if let Value::Table(s) = v {
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Ok(Some(s))
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} else {
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Err(ConfigFileError {
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key_path,
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message: "invalid type, should be a table of key-value pairs",
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})
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}
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} else {
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Ok(None)
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}
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}
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pub fn get_key_as_bool<'a>(
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table: &'a Table,
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key: &str,
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key_path: String,
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) -> Result<Option<bool>, ConfigFileError<'a>> {
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if let Some(v) = table.get(key) {
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if let Value::Boolean(s) = v {
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Ok(Some(*s))
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} else {
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Err(ConfigFileError {
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key_path,
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message: "invalid type, should be boolean",
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})
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}
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} else {
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Ok(None)
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}
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}
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pub fn get_key_as_vec_str<'a>(
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table: &'a Table,
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key: &str,
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key_path: String,
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) -> Result<Option<Vec<&'a str>>, ConfigFileError<'a>> {
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if let Some(v) = table.get(key) {
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if let Value::Array(a) = v {
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let mut ret: Vec<&'a str> = vec![];
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for elem in a {
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if let Value::String(s) = elem {
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ret.push(&s);
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} else {
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return Err(ConfigFileError {
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key_path: format!("{key_path} elemement '{elem}'"),
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message: "invalid type, should be string",
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});
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}
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}
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Ok(Some(ret))
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} else {
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Err(ConfigFileError {
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key_path,
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message: "invalid type, should be array of strings",
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})
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}
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} else {
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Ok(None)
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}
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}
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45
src/config_table.rs
Normal file
45
src/config_table.rs
Normal file
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@ -0,0 +1,45 @@
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use toml::Table;
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use crate::config_file_parsing::*;
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#[derive(Debug, Clone)]
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pub struct ConfigTable<'a> {
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pub build_dir: &'a str,
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pub compile_commands: bool,
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pub compile_commands_target: &'a str,
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}
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impl<'a> ConfigTable<'a> {
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pub fn get_default() -> Self {
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ConfigTable {
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build_dir: "build",
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compile_commands: false,
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compile_commands_target: "main",
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}
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}
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pub fn from_table(table: &'a Table, key_path: String) -> Result<Self, ConfigFileError<'a>> {
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let mut ret = Self::get_default();
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if let Some(v) = get_key_as_str(table, "build_dir", format!("{key_path}.build_dir"))? {
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ret.build_dir = v;
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}
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if let Some(v) = get_key_as_bool(
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table,
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"compile_commands",
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format!("{key_path}.compile_commands"),
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)? {
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ret.compile_commands = v;
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}
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if let Some(v) = get_key_as_str(
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table,
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"compile_commands_target",
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format!("{key_path}.compile_commands_target"),
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)? {
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ret.compile_commands_target = v;
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}
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Ok(ret)
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}
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}
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216
src/main.rs
216
src/main.rs
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use clap::Parser;
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use config_file_parsing::get_key_as_table;
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use core::{panic, str};
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use std::{
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fs::{read_to_string, write},
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path::Path,
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@ -9,8 +11,11 @@ use toml::{Table, Value};
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mod target;
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use target::*;
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mod config;
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use config::*;
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mod config_table;
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use config_table::*;
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mod config_file_parsing;
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mod target_options;
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/// ngen is a build file generator for the ninja build system.
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#[derive(Parser)]
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@ -125,109 +130,128 @@ fn main() {
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let config_file = read_to_string(config_file_name)
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.unwrap_or_else(|e| panic!("could not read config file {config_file_name}: {e}"));
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let parsed_config = toml::from_str::<Table>(&config_file)
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let toml_config = toml::from_str::<Table>(&config_file)
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.unwrap_or_else(|e| panic!("error parsing toml file {config_file_name}: {e}"));
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// get config
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let mut config = Config::get_default();
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if let Some(v) = parsed_config.get("config") {
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if let Value::Table(t) = v {
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config.set(&t);
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} else {
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panic!("error parsing config table: config invalid type, must be a table.");
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}
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let config_tbl: ConfigTable;
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match get_key_as_table(&toml_config, "config", "".to_string()) {
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Ok(v) => match v {
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Some(c) => {
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config_tbl = ConfigTable::from_table(&c, ".config".to_string())
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.unwrap_or_else(|e| panic!("{e}"))
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}
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None => config_tbl = ConfigTable::get_default(),
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},
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Err(e) => panic!("{e}"),
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}
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println!("{:?}", config_tbl);
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//let mut config = Config::get_default();
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//if let Some(v) = parsed_config.get("config") {
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// if let Value::Table(t) = v {
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// config.set(&t);
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// } else {
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// panic!("error parsing config table: config invalid type, must be a table.");
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// }
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//}
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//----
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// parse the main target first
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let mut targets: Vec<Target> = Vec::new();
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let main_target = Target::new(&parsed_config, "main", None);
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targets.push(main_target.clone());
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let mut target_for_comp_cmds = main_target;
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let mut target_for_comp_cmds_changed = false;
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//let mut targets: Vec<Target> = vec![];
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// parse other targets
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for k in parsed_config.keys() {
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if let Value::Table(t) = parsed_config.get(k).unwrap() {
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if k == "config" {
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continue; // ignore config
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}
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let target = Target::new(&t, k, Some(&targets[0]));
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targets.push(target);
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if let Some(_) = args.write_compile_commands {
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if *k == config.compile_commands_target {
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target_for_comp_cmds = targets[targets.len() - 1].clone();
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target_for_comp_cmds_changed = true;
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}
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}
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}
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match Target::from_table(&toml_config, "main", "".to_string()) {
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Ok(v) => println!("{:?}", v),
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Err(e) => panic!("{e}"),
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}
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if let Some(file) = args.write_compile_commands {
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if config.compile_commands_target == "" {
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eprintln!(
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"ngen: warn: no compile_commands target found, using 'main' target by default."
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);
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} else if !target_for_comp_cmds_changed && config.compile_commands_target != "main" {
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let c = &config.compile_commands_target;
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eprintln!(
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"ngen: warn: compile_commands target {c} not found, using 'main' target instead."
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);
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}
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write(
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&file,
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&gen_compile_commands(&target_for_comp_cmds, &config.build_dir),
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)
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.unwrap_or_else(|e| panic!("fatal: could not write {file}: {e}"));
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// no need to write ninja file
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exit(0);
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}
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exit(10);
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let build_dir = &config.build_dir;
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let mut ninjafile = format!(
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"\
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# Generated by ngen. Do not modify by hand.
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builddir = {build_dir}
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rule mkdir
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command = mkdir -p $out
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description = Creating directory $out
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rule regen_ninjafile
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command = ngen -c $in -o $out
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generator = 1
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description = Regenerating $out
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",
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);
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if config.compile_commands {
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ninjafile.push_str(&format!(
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"\
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rule regen_compile_commands
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command = ngen -c $in --write-compile-commands $out
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description = Regenerating $out
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build $builddir: mkdir
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build $builddir/compile_commands.json: regen_compile_commands {config_file_name} || $builddir
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pool = console
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build {output_file}: regen_ninjafile {config_file_name} || $builddir/compile_commands.json
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pool = console
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"
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));
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} else {
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ninjafile.push_str(&format!(
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"build {output_file}: regen_ninjafile {config_file_name}\n pool = console\n"
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));
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}
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for t in targets {
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ninjafile.push_str(&gen_ninja_code(&t));
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}
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write(output_file, &ninjafile)
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.unwrap_or_else(|e| panic!("could not write ninja file {ninjafile}: {e}"));
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// targets.push(main_target.clone());
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// let mut target_for_comp_cmds = main_target;
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// let mut target_for_comp_cmds_changed = false;
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//
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// // parse other targets
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// for k in parsed_config.keys() {
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// if let Value::Table(t) = parsed_config.get(k).unwrap() {
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// if k == "config" {
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// continue; // ignore config
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// }
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// let target = Target::new(&t, k, Some(&targets[0]));
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// targets.push(target);
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// if let Some(_) = args.write_compile_commands {
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// if *k == config.compile_commands_target {
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// target_for_comp_cmds = targets[targets.len() - 1].clone();
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// target_for_comp_cmds_changed = true;
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// }
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// }
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// }
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// }
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//
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// if let Some(file) = args.write_compile_commands {
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// if config.compile_commands_target == "" {
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// eprintln!(
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// "ngen: warn: no compile_commands target found, using 'main' target by default."
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// );
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// } else if !target_for_comp_cmds_changed && config.compile_commands_target != "main" {
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// let c = &config.compile_commands_target;
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// eprintln!(
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// "ngen: warn: compile_commands target {c} not found, using 'main' target instead."
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// );
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// }
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// write(
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// &file,
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// &gen_compile_commands(&target_for_comp_cmds, &config.build_dir),
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// )
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// .unwrap_or_else(|e| panic!("fatal: could not write {file}: {e}"));
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// // no need to write ninja file
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// exit(0);
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// }
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//
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// let build_dir = &config.build_dir;
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// let mut ninjafile = format!(
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// "\
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//# Generated by ngen. Do not modify by hand.
|
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//
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//builddir = {build_dir}
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//
|
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//rule mkdir
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// command = mkdir -p $out
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// description = Creating directory $out
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//
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//rule regen_ninjafile
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// command = ngen -c $in -o $out
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// generator = 1
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// description = Regenerating $out
|
||||
//
|
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//",
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||||
// );
|
||||
//
|
||||
// if config.compile_commands {
|
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// ninjafile.push_str(&format!(
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// "\
|
||||
//rule regen_compile_commands
|
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// command = ngen -c $in --write-compile-commands $out
|
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// description = Regenerating $out
|
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//
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//build $builddir: mkdir
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//
|
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//build $builddir/compile_commands.json: regen_compile_commands {config_file_name} || $builddir
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// pool = console
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//
|
||||
//build {output_file}: regen_ninjafile {config_file_name} || $builddir/compile_commands.json
|
||||
// pool = console
|
||||
//"
|
||||
// ));
|
||||
// } else {
|
||||
// ninjafile.push_str(&format!(
|
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// "build {output_file}: regen_ninjafile {config_file_name}\n pool = console\n"
|
||||
// ));
|
||||
// }
|
||||
//
|
||||
// for t in targets {
|
||||
// ninjafile.push_str(&gen_ninja_code(&t));
|
||||
// }
|
||||
//
|
||||
// write(output_file, &ninjafile)
|
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// .unwrap_or_else(|e| panic!("could not write ninja file {ninjafile}: {e}"));
|
||||
}
|
||||
|
|
|
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193
src/target.rs
193
src/target.rs
|
|
@ -1,145 +1,90 @@
|
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use toml::{Table, Value};
|
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use toml::Table;
|
||||
|
||||
use crate::config_file_parsing::*;
|
||||
use crate::target_options::*;
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Target {
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pub name: String,
|
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pub outfile: String,
|
||||
pub compiler: String,
|
||||
pub compiler_flags: Vec<String>,
|
||||
pub linker: String,
|
||||
pub linker_flags: Vec<String>,
|
||||
pub linker_libs: Vec<String>,
|
||||
pub sources: Vec<String>,
|
||||
pub struct Target<'a> {
|
||||
pub name: &'a str,
|
||||
pub outfile: &'a str,
|
||||
pub compiler: &'a str,
|
||||
pub compiler_flags: Vec<&'a str>,
|
||||
pub linker: &'a str,
|
||||
pub linker_flags: Vec<&'a str>,
|
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pub linker_libs: Vec<&'a str>,
|
||||
pub sources: Vec<&'a str>,
|
||||
pub is_default: bool,
|
||||
pub opts: TargetOptions<'a>,
|
||||
}
|
||||
|
||||
impl Target {
|
||||
fn get_default() -> Self {
|
||||
impl<'a> Target<'a> {
|
||||
pub fn get_default() -> Self {
|
||||
Target {
|
||||
name: String::from(""),
|
||||
outfile: String::from("a.out"),
|
||||
compiler: String::from("cc"),
|
||||
compiler_flags: Vec::new(),
|
||||
linker: String::from(""),
|
||||
linker_flags: Vec::new(),
|
||||
linker_libs: Vec::new(),
|
||||
sources: Vec::new(),
|
||||
name: "",
|
||||
outfile: "a.out",
|
||||
compiler: "cc",
|
||||
compiler_flags: vec![""],
|
||||
linker: "cc",
|
||||
linker_flags: vec![""],
|
||||
linker_libs: vec![""],
|
||||
sources: vec![""],
|
||||
is_default: false,
|
||||
opts: TargetOptions::get_default(),
|
||||
}
|
||||
}
|
||||
pub fn new(table: &Table, name: &str, inherit_from: Option<&Self>) -> Self {
|
||||
let mut ret: Self;
|
||||
let mut linker_set = false;
|
||||
pub fn from_table(
|
||||
table: &'a Table,
|
||||
name: &'a str,
|
||||
key_path: String,
|
||||
) -> Result<Self, ConfigFileError<'a>> {
|
||||
let mut ret = Self::get_default();
|
||||
|
||||
if let Some(t) = inherit_from {
|
||||
ret = t.clone();
|
||||
} else {
|
||||
ret = Self::get_default();
|
||||
if let Some(v) = get_key_as_table(table, "opts", format!("{key_path}.opts"))? {
|
||||
ret.opts = TargetOptions::from_table(&v, format!("{key_path}.opts"))?;
|
||||
}
|
||||
|
||||
ret.name = String::from(name);
|
||||
ret.is_default = false;
|
||||
ret.name = name;
|
||||
|
||||
for k in table.keys() {
|
||||
match &*k.to_owned() {
|
||||
"outfile" => {
|
||||
if let Value::String(s) = table.get(k).unwrap() {
|
||||
ret.outfile = s.to_owned();
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a string.");
|
||||
}
|
||||
}
|
||||
"compiler" => {
|
||||
if let Value::String(s) = table.get(k).unwrap() {
|
||||
ret.compiler = s.to_owned();
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a string.");
|
||||
}
|
||||
}
|
||||
"compiler_flags" => {
|
||||
if let Value::Array(a) = table.get(k).unwrap() {
|
||||
for element in a {
|
||||
if let Value::String(s) = element {
|
||||
ret.compiler_flags.push(s.to_owned());
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
"linker" => {
|
||||
if let Value::String(s) = table.get(k).unwrap() {
|
||||
ret.linker = s.to_owned();
|
||||
linker_set = true;
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a string.");
|
||||
}
|
||||
}
|
||||
"linker_flags" => {
|
||||
if let Value::Array(a) = table.get(k).unwrap() {
|
||||
for element in a {
|
||||
if let Value::String(s) = element {
|
||||
ret.linker_flags.push(s.to_owned());
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
"linker_libs" => {
|
||||
if let Value::Array(a) = table.get(k).unwrap() {
|
||||
for element in a {
|
||||
if let Value::String(s) = element {
|
||||
ret.linker_libs.push(s.to_owned());
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
"sources" => {
|
||||
if let Value::Array(a) = table.get(k).unwrap() {
|
||||
for element in a {
|
||||
if let Value::String(s) = element {
|
||||
ret.sources.push(s.to_owned());
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a array of strings.");
|
||||
}
|
||||
}
|
||||
"default" => {
|
||||
if let Value::Boolean(b) = table.get(k).unwrap() {
|
||||
ret.is_default = *b;
|
||||
} else {
|
||||
panic!("error parsing target {name}: {k} invalid type, must be a boolean.");
|
||||
}
|
||||
}
|
||||
_ => {
|
||||
if let Value::Table(_) = table.get(k).unwrap() {
|
||||
} else {
|
||||
panic!("error parsing target {name}: unrecognized key {k}.");
|
||||
}
|
||||
}
|
||||
}
|
||||
if let Some(v) = get_key_as_str(table, "outfile", format!("{key_path}.outfile"))? {
|
||||
ret.outfile = v;
|
||||
}
|
||||
|
||||
if !linker_set {
|
||||
ret.linker = ret.compiler.clone();
|
||||
if let Some(v) = get_key_as_str(table, "compiler", format!("{key_path}.compiler"))? {
|
||||
ret.compiler = v;
|
||||
}
|
||||
|
||||
if ret.sources == Vec::<String>::new() {
|
||||
panic!("error parsing target {name}: you MUST specify at least one source");
|
||||
if let Some(v) = get_key_as_vec_str(
|
||||
table,
|
||||
"compiler_flags",
|
||||
format!("{key_path}.compiler_flags"),
|
||||
)? {
|
||||
ret.compiler_flags = v;
|
||||
}
|
||||
|
||||
ret
|
||||
if let Some(v) = get_key_as_str(table, "linker", format!("{key_path}.linker"))? {
|
||||
ret.linker = v;
|
||||
}
|
||||
|
||||
if let Some(v) =
|
||||
get_key_as_vec_str(table, "linker_flags", format!("{key_path}.linker_flags"))?
|
||||
{
|
||||
ret.linker_flags = v;
|
||||
}
|
||||
|
||||
if let Some(v) =
|
||||
get_key_as_vec_str(table, "linker_libs", format!("{key_path}.linker_libs"))?
|
||||
{
|
||||
ret.linker_libs = v;
|
||||
}
|
||||
|
||||
if let Some(v) = get_key_as_vec_str(table, "sources", format!("{key_path}.sources"))? {
|
||||
ret.sources = v;
|
||||
}
|
||||
|
||||
if let Some(v) = get_key_as_bool(table, "is_default", format!("{key_path}.is_default"))? {
|
||||
ret.is_default = v;
|
||||
}
|
||||
|
||||
Ok(ret)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
30
src/target_options.rs
Normal file
30
src/target_options.rs
Normal file
|
|
@ -0,0 +1,30 @@
|
|||
use toml::{Table, Value};
|
||||
|
||||
use crate::config_file_parsing::*;
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct TargetOptions<'a> {
|
||||
pub inherit: bool,
|
||||
pub inherit_from: &'a str,
|
||||
}
|
||||
|
||||
impl<'a> TargetOptions<'a> {
|
||||
pub fn get_default() -> Self {
|
||||
TargetOptions {
|
||||
inherit: true,
|
||||
inherit_from: "main",
|
||||
}
|
||||
}
|
||||
pub fn from_table(table: &'a Table, key_path: String) -> Result<Self, ConfigFileError<'a>> {
|
||||
let mut ret = Self::get_default();
|
||||
|
||||
if let Some(v) = get_key_as_bool(table, "inherit", format!("{key_path}.inherit"))? {
|
||||
ret.inherit = v;
|
||||
}
|
||||
if let Some(v) = get_key_as_str(table, "inherit_from", format!("{key_path}.inherit_from"))?
|
||||
{
|
||||
ret.inherit_from = v;
|
||||
}
|
||||
Ok(ret)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue