7afc7e7b1c
A container is software which is always built in its entirety using the same build environment. In particular, all of its parts are built using the same build-time default flag values. In addition, containers are always installed as a single unit. Bug: 312696545 Test: atest aconfig.test && m all_aconfig_declarations Change-Id: I2ef3db836c4456f4f4fb5c066edf9094e38f89cc
122 lines
4.3 KiB
Rust
122 lines
4.3 KiB
Rust
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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use anyhow::{ensure, Result};
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pub fn is_valid_name_ident(s: &str) -> bool {
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// Identifiers must match [a-z][a-z0-9_]*, except consecutive underscores are not allowed
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if s.contains("__") {
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return false;
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}
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let mut chars = s.chars();
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let Some(first) = chars.next() else {
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return false;
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};
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if !first.is_ascii_lowercase() {
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return false;
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}
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chars.all(|ch| ch.is_ascii_lowercase() || ch.is_ascii_digit() || ch == '_')
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}
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pub fn is_valid_package_ident(s: &str) -> bool {
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if !s.contains('.') {
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return false;
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}
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s.split('.').all(is_valid_name_ident)
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}
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pub fn is_valid_container_ident(s: &str) -> bool {
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is_valid_name_ident(s) || s.split('.').all(is_valid_name_ident)
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}
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pub fn create_device_config_ident(package: &str, flag_name: &str) -> Result<String> {
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ensure!(is_valid_package_ident(package), "bad package");
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ensure!(is_valid_name_ident(flag_name), "bad flag name");
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Ok(format!("{}.{}", package, flag_name))
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_is_valid_name_ident() {
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assert!(is_valid_name_ident("foo"));
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assert!(is_valid_name_ident("foo_bar_123"));
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assert!(is_valid_name_ident("foo_"));
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assert!(!is_valid_name_ident(""));
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assert!(!is_valid_name_ident("123_foo"));
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assert!(!is_valid_name_ident("foo-bar"));
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assert!(!is_valid_name_ident("foo-b\u{00e5}r"));
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assert!(!is_valid_name_ident("foo__bar"));
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assert!(!is_valid_name_ident("_foo"));
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}
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#[test]
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fn test_is_valid_package_ident() {
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assert!(is_valid_package_ident("foo.bar"));
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assert!(is_valid_package_ident("foo.bar_baz"));
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assert!(is_valid_package_ident("foo.bar.a123"));
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assert!(!is_valid_package_ident("foo_bar_123"));
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assert!(!is_valid_package_ident("foo"));
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assert!(!is_valid_package_ident("foo._bar"));
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assert!(!is_valid_package_ident(""));
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assert!(!is_valid_package_ident("123_foo"));
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assert!(!is_valid_package_ident("foo-bar"));
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assert!(!is_valid_package_ident("foo-b\u{00e5}r"));
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assert!(!is_valid_package_ident("foo.bar.123"));
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assert!(!is_valid_package_ident(".foo.bar"));
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assert!(!is_valid_package_ident("foo.bar."));
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assert!(!is_valid_package_ident("."));
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assert!(!is_valid_package_ident(".."));
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assert!(!is_valid_package_ident("foo..bar"));
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assert!(!is_valid_package_ident("foo.__bar"));
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}
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#[test]
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fn test_is_valid_container_ident() {
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assert!(is_valid_container_ident("foo.bar"));
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assert!(is_valid_container_ident("foo.bar_baz"));
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assert!(is_valid_container_ident("foo.bar.a123"));
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assert!(is_valid_container_ident("foo"));
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assert!(is_valid_container_ident("foo_bar_123"));
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assert!(!is_valid_container_ident(""));
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assert!(!is_valid_container_ident("foo._bar"));
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assert!(!is_valid_container_ident("_foo"));
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assert!(!is_valid_container_ident("123_foo"));
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assert!(!is_valid_container_ident("foo-bar"));
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assert!(!is_valid_container_ident("foo-b\u{00e5}r"));
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assert!(!is_valid_container_ident("foo.bar.123"));
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assert!(!is_valid_container_ident(".foo.bar"));
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assert!(!is_valid_container_ident("foo.bar."));
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assert!(!is_valid_container_ident("."));
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assert!(!is_valid_container_ident(".."));
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assert!(!is_valid_container_ident("foo..bar"));
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assert!(!is_valid_container_ident("foo.__bar"));
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}
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#[test]
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fn test_create_device_config_ident() {
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assert_eq!(
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"com.foo.bar.some_flag",
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create_device_config_ident("com.foo.bar", "some_flag").unwrap()
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);
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}
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}
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