add namespaces

- extract domain logic
- extract cli logic
- cover domain logic with unit tests

.env.example

@@ -1,8 +1,17 @@
 VITE_STRIPE_PK=
 VITE_SENTRY_ENABLED=
 VITE_SENTRY_DSN=
-# staging / production
+### local,staging
 VITE_SENTRY_ENV=staging
+### prod
+# VITE_SENTRY_ENV=production
+
+### db:local
+DATABASE_URL='postgres://user:password@localhost:5432/core'
+### db:staging
+# DATABASE_URL='postgres://user:password@localhost:5555/core'
+### db:prod
+# DATABASE_URL='postgres://user:password@localhost:6666/core'
 
 CYPRESS_CRED_EMAIL='owner@cypress.test'
 CYPRESS_CRED_PASSWORD='12345678'
@@ -10,13 +19,18 @@ CYPRESS_TEST_PRIVATE_TOKEN='12345678'
 
 ### local
 VITE_API_BASE_URL='http://localhost:1337/api'
-VITE_API_BASE_URL='http://localhost:3000'
+VITE_SITE_URL='http://localhost:3000'
 CYPRESS_API_BASE_URL='http://localhost:1337/api'
 
 # this variable will not switch
-DEBUG=1
+GRAPHQL_PLAYGROUND=1
 
 ### staging
 # VITE_API_BASE_URL='https://app.develop.staging.example.com/api'
-# VITE_BMM_SITE_URL='https://www.develop.staging.example.com'
+# VITE_SITE_URL='https://www.develop.staging.example.com'
 # CYPRESS_API_BASE_URL='https://app.develop.staging.example.com/api'
+
+### debug:on,local
+# DEBUG=1
+### debug:off,staging
+# DEBUG=

.gitignore

@@ -1,3 +1,4 @@
 /target
 
-.env
+.env*
+!.env.example

Cargo.toml

@@ -12,3 +12,5 @@ categories = ["command-line-interface", "config", "development-tools"]
 
 [dependencies]
 clap = { version = "3.2.15", features = ["derive"] }
+
+[features]

README.md

@@ -15,11 +15,20 @@ You can see the [full example].
 
 # Usage
 
+Basic usage
+
 ```sh
 cp .env.example .env
-vnetod local    # choose local state
-vnetod staging  # choose staging state
-vnetod -        # disable all states
+vnetod local        # enable local section
+vnetod staging      # enable staging section
+vnetod local debug  # enable local and debug sections
+vnetod              # disable all sections
+```
+
+Namespaces
+
+```sh
+vnetod db:local debug:on
 ```
 
 # License

src/cli.rs

@@ -14,6 +14,8 @@
 //! along with vnetod.  If not, see <https://www.gnu.org/licenses/>.
 //!
 
+pub mod switch;
+
 use std::path::PathBuf;
 
 use clap::Parser;
@@ -40,5 +42,5 @@ pub struct Args {
     pub output: Option<PathBuf>,
 
     #[clap(value_parser)]
-    pub section_names: Vec<String>,
+    pub sections: Vec<String>,
 }

src/cli/switch.rs

@@ -0,0 +1,21 @@
+use crate::{cli::Args, domain};
+use std::{cell::RefCell, fs::File};
+
+#[derive(Debug)]
+pub enum Error {
+    OpenFile,
+    Switch(domain::switch::Error),
+}
+
+pub fn execute(args: &Args) -> Result<(), Error> {
+    let reader = File::open(&args.file).map_err(|_| Error::OpenFile)?;
+    let writer =
+        File::create(args.output.as_ref().unwrap_or(&args.file)).map_err(|_| Error::OpenFile)?;
+
+    domain::switch::execute(domain::switch::Request {
+        reader: RefCell::new(reader),
+        writer,
+        sections: &args.sections,
+    })
+    .map_err(Error::Switch)
+}

src/domain.rs

@@ -0,0 +1,26 @@
+pub mod switch;
+
+#[derive(Debug, Clone, Eq)]
+struct Section {
+    namespace: Option<String>,
+    name: String,
+}
+
+impl<'a> From<&'a str> for Section {
+    fn from(s: &'a str) -> Self {
+        let (ns, name) = s
+            .trim()
+            .split_once(':')
+            .map_or_else(|| (None, s), |(ns, name)| (Some(ns), name));
+        Self {
+            namespace: ns.map(String::from),
+            name: String::from(name),
+        }
+    }
+}
+
+impl PartialEq for Section {
+    fn eq(&self, other: &Self) -> bool {
+        self.name == other.name && (self.namespace.is_none() || self.namespace == other.namespace)
+    }
+}

src/domain/switch.rs

@@ -0,0 +1,136 @@
+use std::cell::RefCell;
+use std::io::{BufWriter, Read, Write};
+
+use super::Section;
+
+#[derive(Debug)]
+pub enum Error {
+    ReadData,
+    WriteData,
+}
+
+pub struct Request<'args, R, W>
+where
+    R: Read,
+    W: Write,
+{
+    pub reader: RefCell<R>,
+    pub writer: W,
+    pub sections: &'args [String],
+}
+
+pub fn execute<R, W>(req: Request<R, W>) -> Result<(), Error>
+where
+    R: Read,
+    W: Write,
+{
+    let mut content = String::new();
+    req.reader
+        .borrow_mut()
+        .read_to_string(&mut content)
+        .map_err(|_| Error::ReadData)?;
+
+    let mut writer = BufWriter::new(req.writer);
+
+    let choose_sections = req
+        .sections
+        .iter()
+        .map(|s| Section::from(s.as_str()))
+        .collect::<Vec<_>>();
+
+    dbg!(&choose_sections);
+
+    let choose_namespaces = choose_sections
+        .iter()
+        .map(|s| s.namespace.clone())
+        .collect::<Vec<_>>();
+
+    let mut current_sections: Option<Vec<Section>> = None;
+
+    for line in content.split_inclusive('\n') {
+        let new_line = if is_section_end(line) {
+            current_sections = None;
+            line.to_string()
+        } else if let Some(section_info) = line.strip_prefix("### ") {
+            current_sections = section_info
+                .split_whitespace()
+                .next()
+                .map(|r| r.split(',').map(Section::from).collect());
+            line.to_string()
+        } else if let Some(cur_sections) = current_sections.clone() {
+            let trimmed_line = line.trim_start_matches(['#', ' ']);
+            if cur_sections.iter().any(|s| choose_sections.contains(s)) {
+                String::from(trimmed_line)
+            } else {
+                format!("# {}", trimmed_line)
+            }
+        } else {
+            line.to_string()
+        };
+
+        dbg!(line, &current_sections, &new_line);
+
+        writer
+            .write_all(new_line.as_bytes())
+            .map_err(|_| Error::WriteData)?;
+    }
+
+    writer.flush().map_err(|_| Error::WriteData)
+}
+
+fn is_section_end(line: &str) -> bool {
+    line.trim().is_empty()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::cell::RefCell;
+    use std::io::Cursor;
+
+    const BASE_ENV: &str = include_str!("../../test_data/base_env");
+
+    fn make_test(input: &str, expected_output: &str, sections: Vec<&str>) {
+        let reader = RefCell::new(Cursor::new(input));
+        let mut output_data = vec![];
+        let writer = Cursor::new(&mut output_data);
+
+        match execute(Request {
+            reader,
+            writer,
+            sections: &sections.into_iter().map(String::from).collect::<Vec<_>>(),
+        }) {
+            Ok(()) => {
+                let output = String::from_utf8(output_data).unwrap();
+                assert_eq!(
+                    output.lines().collect::<Vec<_>>(),
+                    expected_output.lines().collect::<Vec<_>>()
+                );
+            }
+            _ => unreachable!(),
+        }
+    }
+
+    #[test]
+    fn should_disable_all_sections() {
+        make_test(include_str!("../../test_data/all_env"), BASE_ENV, vec![]);
+    }
+
+    #[test]
+    fn should_enable_local_sections() {
+        make_test(
+            BASE_ENV,
+            include_str!("../../test_data/should_enable_local"),
+            vec!["local"],
+        );
+    }
+
+    #[test]
+    fn should_enable_staging_sections() {
+        make_test(
+            BASE_ENV,
+            include_str!("../../test_data/should_enable_staging"),
+            vec!["staging"],
+        );
+    }
+}

src/main.rs

@@ -16,66 +16,14 @@
 #![deny(clippy::all, clippy::pedantic)]
 
 mod cli;
-
-use std::{
-    fs::File,
-    io::{BufWriter, Write},
-};
+mod domain;
 
 use clap::Parser;
 
-fn main() -> Result<(), Error> {
+fn main() -> Result<(), cli::switch::Error> {
     let cli = cli::Args::parse();
 
-    change_env_layout(&cli)?;
+    cli::switch::execute(&cli)?;
 
     Ok(())
 }
-
-fn change_env_layout(args: &cli::Args) -> Result<(), Error> {
-    let content = std::fs::read_to_string(&args.file).map_err(|_| Error::OpenFile)?;
-
-    let mut writer = File::create(args.output.as_ref().unwrap_or(&args.file))
-        .map_err(|_| Error::OpenFile)
-        .map(BufWriter::new)?;
-
-    let mut current_section_name: Option<Vec<String>> = None;
-
-    for line in content.split_inclusive('\n') {
-        let new_line = if is_section_end(line) {
-            current_section_name = None;
-            line.to_string()
-        } else if let Some(section_info) = line.strip_prefix("### ") {
-            current_section_name = section_info
-                .split_whitespace()
-                .next()
-                .map(|r| r.split(',').map(str::trim).map(String::from).collect());
-            line.to_string()
-        } else if let Some(cur_name) = current_section_name.clone() {
-            let trimmed_line = line.trim_start_matches(['#', ' ']);
-            if args.section_names.iter().any(|sn| cur_name.contains(sn)) {
-                String::from(trimmed_line)
-            } else {
-                format!("# {}", trimmed_line)
-            }
-        } else {
-            line.to_string()
-        };
-
-        writer
-            .write_all(new_line.as_bytes())
-            .map_err(|_| Error::WriteData)?;
-    }
-
-    writer.flush().map_err(|_| Error::WriteData)
-}
-
-fn is_section_end(line: &str) -> bool {
-    line.trim().is_empty()
-}
-
-#[derive(Debug)]
-enum Error {
-    OpenFile,
-    WriteData,
-}

test_data/all_env

@@ -0,0 +1,36 @@
+VITE_STRIPE_PK=
+VITE_SENTRY_ENABLED=
+VITE_SENTRY_DSN=
+### local,staging
+VITE_SENTRY_ENV=staging
+### prod
+VITE_SENTRY_ENV=production
+
+### db:local
+DATABASE_URL='postgres://user:password@localhost:5432/core'
+### db:staging
+DATABASE_URL='postgres://user:password@localhost:5555/core'
+### db:prod
+DATABASE_URL='postgres://user:password@localhost:6666/core'
+
+CYPRESS_CRED_EMAIL='owner@cypress.test'
+CYPRESS_CRED_PASSWORD='12345678'
+CYPRESS_TEST_PRIVATE_TOKEN='12345678'
+
+### local
+VITE_API_BASE_URL='http://localhost:1337/api'
+VITE_SITE_URL='http://localhost:3000'
+CYPRESS_API_BASE_URL='http://localhost:1337/api'
+
+# this variable will not switch
+GRAPHQL_PLAYGROUND=1
+
+### staging
+VITE_API_BASE_URL='https://app.develop.staging.example.com/api'
+VITE_SITE_URL='https://www.develop.staging.example.com'
+CYPRESS_API_BASE_URL='https://app.develop.staging.example.com/api'
+
+### debug:on,local
+DEBUG=1
+### debug:off,staging
+DEBUG=

test_data/base_env

@@ -0,0 +1,36 @@
+VITE_STRIPE_PK=
+VITE_SENTRY_ENABLED=
+VITE_SENTRY_DSN=
+### local,staging
+# VITE_SENTRY_ENV=staging
+### prod
+# VITE_SENTRY_ENV=production
+
+### db:local
+# DATABASE_URL='postgres://user:password@localhost:5432/core'
+### db:staging
+# DATABASE_URL='postgres://user:password@localhost:5555/core'
+### db:prod
+# DATABASE_URL='postgres://user:password@localhost:6666/core'
+
+CYPRESS_CRED_EMAIL='owner@cypress.test'
+CYPRESS_CRED_PASSWORD='12345678'
+CYPRESS_TEST_PRIVATE_TOKEN='12345678'
+
+### local
+# VITE_API_BASE_URL='http://localhost:1337/api'
+# VITE_SITE_URL='http://localhost:3000'
+# CYPRESS_API_BASE_URL='http://localhost:1337/api'
+
+# this variable will not switch
+GRAPHQL_PLAYGROUND=1
+
+### staging
+# VITE_API_BASE_URL='https://app.develop.staging.example.com/api'
+# VITE_SITE_URL='https://www.develop.staging.example.com'
+# CYPRESS_API_BASE_URL='https://app.develop.staging.example.com/api'
+
+### debug:on,local
+# DEBUG=1
+### debug:off,staging
+# DEBUG=

test_data/should_enable_local

@@ -0,0 +1,36 @@
+VITE_STRIPE_PK=
+VITE_SENTRY_ENABLED=
+VITE_SENTRY_DSN=
+### local,staging
+VITE_SENTRY_ENV=staging
+### prod
+# VITE_SENTRY_ENV=production
+
+### db:local
+DATABASE_URL='postgres://user:password@localhost:5432/core'
+### db:staging
+# DATABASE_URL='postgres://user:password@localhost:5555/core'
+### db:prod
+# DATABASE_URL='postgres://user:password@localhost:6666/core'
+
+CYPRESS_CRED_EMAIL='owner@cypress.test'
+CYPRESS_CRED_PASSWORD='12345678'
+CYPRESS_TEST_PRIVATE_TOKEN='12345678'
+
+### local
+VITE_API_BASE_URL='http://localhost:1337/api'
+VITE_SITE_URL='http://localhost:3000'
+CYPRESS_API_BASE_URL='http://localhost:1337/api'
+
+# this variable will not switch
+GRAPHQL_PLAYGROUND=1
+
+### staging
+# VITE_API_BASE_URL='https://app.develop.staging.example.com/api'
+# VITE_SITE_URL='https://www.develop.staging.example.com'
+# CYPRESS_API_BASE_URL='https://app.develop.staging.example.com/api'
+
+### debug:on,local
+DEBUG=1
+### debug:off,staging
+# DEBUG=

test_data/should_enable_staging

@@ -0,0 +1,36 @@
+VITE_STRIPE_PK=
+VITE_SENTRY_ENABLED=
+VITE_SENTRY_DSN=
+### local,staging
+VITE_SENTRY_ENV=staging
+### prod
+# VITE_SENTRY_ENV=production
+
+### db:local
+# DATABASE_URL='postgres://user:password@localhost:5432/core'
+### db:staging
+DATABASE_URL='postgres://user:password@localhost:5555/core'
+### db:prod
+# DATABASE_URL='postgres://user:password@localhost:6666/core'
+
+CYPRESS_CRED_EMAIL='owner@cypress.test'
+CYPRESS_CRED_PASSWORD='12345678'
+CYPRESS_TEST_PRIVATE_TOKEN='12345678'
+
+### local
+# VITE_API_BASE_URL='http://localhost:1337/api'
+# VITE_SITE_URL='http://localhost:3000'
+# CYPRESS_API_BASE_URL='http://localhost:1337/api'
+
+# this variable will not switch
+GRAPHQL_PLAYGROUND=1
+
+### staging
+VITE_API_BASE_URL='https://app.develop.staging.example.com/api'
+VITE_SITE_URL='https://www.develop.staging.example.com'
+CYPRESS_API_BASE_URL='https://app.develop.staging.example.com/api'
+
+### debug:on,local
+# DEBUG=1
+### debug:off,staging
+DEBUG=

test_data/should_use_debug_in_staging

@@ -0,0 +1,36 @@
+VITE_STRIPE_PK=
+VITE_SENTRY_ENABLED=
+VITE_SENTRY_DSN=
+### local,staging
+VITE_SENTRY_ENV=staging
+### prod
+# VITE_SENTRY_ENV=production
+
+### db:local
+# DATABASE_URL='postgres://user:password@localhost:5432/core'
+### db:staging
+DATABASE_URL='postgres://user:password@localhost:5555/core'
+### db:prod
+# DATABASE_URL='postgres://user:password@localhost:6666/core'
+
+CYPRESS_CRED_EMAIL='owner@cypress.test'
+CYPRESS_CRED_PASSWORD='12345678'
+CYPRESS_TEST_PRIVATE_TOKEN='12345678'
+
+### local
+# VITE_API_BASE_URL='http://localhost:1337/api'
+# VITE_SITE_URL='http://localhost:3000'
+# CYPRESS_API_BASE_URL='http://localhost:1337/api'
+
+# this variable will not switch
+GRAPHQL_PLAYGROUND=1
+
+### staging
+VITE_API_BASE_URL='https://app.develop.staging.example.com/api'
+VITE_SITE_URL='https://www.develop.staging.example.com'
+CYPRESS_API_BASE_URL='https://app.develop.staging.example.com/api'
+
+### debug:on,local
+DEBUG=1
+### debug:off,staging
+# DEBUG=

test_data/should_use_staging_db_in_local

@@ -0,0 +1,36 @@
+VITE_STRIPE_PK=
+VITE_SENTRY_ENABLED=
+VITE_SENTRY_DSN=
+### local,staging
+VITE_SENTRY_ENV=staging
+### prod
+# VITE_SENTRY_ENV=production
+
+### db:local
+# DATABASE_URL='postgres://user:password@localhost:5432/core'
+### db:staging
+DATABASE_URL='postgres://user:password@localhost:5555/core'
+### db:prod
+# DATABASE_URL='postgres://user:password@localhost:6666/core'
+
+CYPRESS_CRED_EMAIL='owner@cypress.test'
+CYPRESS_CRED_PASSWORD='12345678'
+CYPRESS_TEST_PRIVATE_TOKEN='12345678'
+
+### local
+VITE_API_BASE_URL='http://localhost:1337/api'
+VITE_SITE_URL='http://localhost:3000'
+CYPRESS_API_BASE_URL='http://localhost:1337/api'
+
+# this variable will not switch
+GRAPHQL_PLAYGROUND=1
+
+### staging
+# VITE_API_BASE_URL='https://app.develop.staging.example.com/api'
+# VITE_SITE_URL='https://www.develop.staging.example.com'
+# CYPRESS_API_BASE_URL='https://app.develop.staging.example.com/api'
+
+### debug:on,local
+DEBUG=1
+### debug:off,staging
+# DEBUG=