refactor: replace to_string uses with a macro

crates/core/src/config/forge_config.rs

@@ -1,6 +1,9 @@
 use std::collections::BTreeMap;
 
-use crate::config::{ApiToken, ForgeType, Hostname, RepoAlias, ServerRepoConfig, User};
+use crate::{
+    config::{ApiToken, ForgeType, Hostname, RepoAlias, ServerRepoConfig, User},
+    s,
+};
 
 use super::CommitCount;
 
@@ -18,7 +21,7 @@ use super::CommitCount;
     derive_more::Constructor,
     derive_more::Display,
 )]
-#[display("{}:{}@{}", forge_type.to_string().to_lowercase(), user, hostname)]
+#[display("{}:{}@{}", s!(forge_type).to_lowercase(), user, hostname)]
 pub struct ForgeConfig {
     forge_type: ForgeType,
     hostname: String,

crates/core/src/config/remote_url.rs

@@ -1,7 +1,7 @@
 //
 use std::borrow::ToOwned;
 
-use crate::newtype;
+use crate::{newtype, s};
 
 newtype!(
     RemoteUrl,
@@ -19,7 +19,7 @@ impl TryFrom<gix::Url> for RemoteUrl {
 
     fn try_from(url: gix::Url) -> Result<Self, Self::Error> {
         let pass = url.password().map(ToOwned::to_owned);
-        let mut parsed = ::git_url_parse::GitUrl::parse(&url.to_string()).map_err(|_| ())?;
+        let mut parsed = ::git_url_parse::GitUrl::parse(&s!(url)).map_err(|_| ())?;
         parsed.token = pass;
         Ok(Self(parsed))
     }

crates/core/src/config/server.rs

@@ -16,7 +16,7 @@ use tracing::info;
 
 use crate::{
     config::{ForgeAlias, ForgeConfig, RepoAlias},
-    newtype,
+    newtype, s,
 };
 
 #[derive(Debug, thiserror::Error)]
@@ -57,8 +57,8 @@ impl AppConfig {
     pub fn load(fs: &FileSystem) -> Result<Self> {
         let file = fs.base().join("git-next-server.toml");
         info!(?file, "");
-        let str = fs.file(&file).reader()?.to_string();
-        Ok(toml::from_str(&str)?)
+        let str = fs.file(&file).reader()?;
+        Ok(toml::from_str(&s!(str))?)
     }
 
     pub fn forges(&self) -> impl Iterator<Item = (ForgeAlias, &ForgeConfig)> {
@@ -158,7 +158,7 @@ impl Display for RepoListenUrl {
 }
 impl From<RepoListenUrl> for ForgeWebhookUrl {
     fn from(value: RepoListenUrl) -> Self {
-        Self::new(value.to_string())
+        Self::new(s!(value))
     }
 }
 

crates/core/src/config/server_repo_config.rs

@@ -1,9 +1,12 @@
 //
 use std::path::PathBuf;
 
-use crate::config::{
+use crate::{
+    config::{
         git_dir::StoragePathType, BranchName, GitDir, RepoBranches, RepoConfig, RepoConfigSource,
         RepoPath,
+    },
+    s,
 };
 
 /// Defines a Repo within a `ForgeConfig` to be monitored by the server
@@ -51,7 +54,7 @@ impl ServerRepoConfig {
     pub fn repo_config(&self) -> Option<RepoConfig> {
         match (&self.main, &self.next, &self.dev) {
             (Some(main), Some(next), Some(dev)) => Some(RepoConfig::new(
-                RepoBranches::new(main.to_string(), next.to_string(), dev.to_string()),
+                RepoBranches::new(s!(main), s!(next), s!(dev)),
                 RepoConfigSource::Server,
             )),
             _ => None,

crates/core/src/config/tests.rs

@@ -6,10 +6,11 @@ use secrecy::ExposeSecret;
 use std::collections::BTreeMap;
 use std::path::PathBuf;
 
-use crate::server::AppConfig;
-use crate::server::Http;
-use crate::server::Storage;
-use crate::webhook::push::Branch;
+use crate::{
+    s,
+    server::{AppConfig, Http, Storage},
+    webhook::push::Branch,
+};
 
 mod url;
 
@@ -445,7 +446,7 @@ mod forge_type {
 
     #[test]
     fn should_display_as_string() {
-        assert_eq!(ForgeType::MockForge.to_string(), "MockForge".to_string());
+        assert_eq!(s!(ForgeType::MockForge), "MockForge");
     }
 }
 mod gitdir {
@@ -466,7 +467,7 @@ mod gitdir {
         let pathbuf = PathBuf::default().join("foo");
         let gitdir = GitDir::new(pathbuf, git_dir::StoragePathType::Internal);
 
-        let result = gitdir.to_string();
+        let result = s!(gitdir);
 
         assert_eq!(result, "foo");
     }
@@ -539,7 +540,7 @@ mod server {
             let shout_webhook_url = shout.webhook_url().unwrap_or_default();
             let shout_webhook_secret = shout
                 .webhook_secret()
-                .map(|secret| secret.expose_secret().to_string())
+                .map(|secret| s!(secret.expose_secret()))
                 .unwrap_or_default();
             let_assert!(Some(shout_email) = shout.email());
             let shout_email_from = shout_email.from();
@@ -560,7 +561,7 @@ mod server {
             let forge_type = forge_default.forge_type();
             let forge_hostname = forge_default.hostname();
             let forge_user = forge_default.user();
-            let forge_token = forge_default.token().expose_secret().to_string();
+            let forge_token = s!(forge_default.token().expose_secret());
             let optional_max_dev_commits = forge_default
                 .max_dev_commits()
                 .map(CommitCount::peel)
@@ -574,7 +575,7 @@ mod server {
                 let gitdir = server_repo_config
                     .gitdir()
                     .map(|gitdir| gitdir.to_path_buf())
-                    .map(|pathbuf| pathbuf.display().to_string())
+                    .map(|pathbuf| s!(pathbuf.display()))
                     .map(|gitdir| format!(r#", gitdir = "{gitdir}" "#))
                     .unwrap_or_default();
                 let repo_server_config = server_repo_config
@@ -700,7 +701,7 @@ mod webhook {
                 headers,
                 given::a_webhook_message_body(),
             );
-            assert_eq!(message.header(&key), Some(value));
+            assert_eq!(message.header(&key), Some(value.as_str()));
         }
     }
 }

crates/core/src/config/webhook/forge_notification.rs

@@ -1,9 +1,9 @@
 //
-use crate::config::{ForgeAlias, RepoAlias};
+use std::collections::BTreeMap;
 
 use derive_more::Constructor;
 
-use std::{collections::BTreeMap, string::ToString};
+use crate::config::{ForgeAlias, RepoAlias};
 
 /// A notification receive from a Forge, typically via a Webhook.
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, derive_more::Constructor)]
@@ -30,8 +30,8 @@ impl ForgeNotification {
     }
 
     #[must_use]
-    pub fn header(&self, header: &str) -> Option<String> {
-        self.headers.get(header).map(ToString::to_string)
+    pub fn header(&self, header: &str) -> Option<&str> {
+        self.headers.get(header).map(std::string::String::as_str)
     }
 }
 

crates/core/src/config/webhook/tests.rs

@@ -1,11 +1,11 @@
 mod auth {
-    use crate::WebhookAuth;
+    use crate::{s, WebhookAuth};
 
     #[test]
     fn bytes() -> Result<(), Box<dyn std::error::Error>> {
         let ulid = ulid::Ulid::new();
 
-        let wa = WebhookAuth::try_new(ulid.to_string().as_str())?;
+        let wa = WebhookAuth::try_new(s!(ulid).as_str())?;
 
         assert_eq!(ulid.to_bytes(), wa.to_bytes());
 
@@ -16,9 +16,9 @@ mod auth {
     fn string() -> Result<(), Box<dyn std::error::Error>> {
         let ulid = ulid::Ulid::new();
 
-        let wa = WebhookAuth::try_new(ulid.to_string().as_str())?;
+        let wa = WebhookAuth::try_new(s!(ulid).as_str())?;
 
-        assert_eq!(ulid.to_string(), wa.to_string());
+        assert_eq!(s!(ulid), s!(wa));
 
         Ok(())
     }

crates/core/src/git/file.rs

@@ -53,29 +53,32 @@ pub enum Error {
 }
 
 mod gix_errors {
-    #![cfg(not(tarpaulin_include))] // third-party library errors
+    #![cfg(not(tarpaulin_include))]
+    use crate::s;
+
+    // third-party library errors
     use super::Error;
     impl From<gix::reference::find::existing::Error> for Error {
         fn from(value: gix::reference::find::existing::Error) -> Self {
-            Self::FindReference(value.to_string())
+            Self::FindReference(s!(value))
         }
     }
 
     impl From<gix::object::commit::Error> for Error {
         fn from(value: gix::object::commit::Error) -> Self {
-            Self::NoTreeInCommit(value.to_string())
+            Self::NoTreeInCommit(s!(value))
         }
     }
 
     impl From<gix::object::find::existing::Error> for Error {
         fn from(value: gix::object::find::existing::Error) -> Self {
-            Self::FindObject(value.to_string())
+            Self::FindObject(s!(value))
         }
     }
 
     impl From<std::string::FromUtf8Error> for Error {
         fn from(value: std::string::FromUtf8Error) -> Self {
-            Self::NonUtf8Blob(value.to_string())
+            Self::NonUtf8Blob(s!(value))
         }
     }
 }

crates/core/src/git/git_ref.rs

@@ -1,5 +1,5 @@
 //
-use crate::newtype;
+use crate::{newtype, s};
 
 use derive_more::Display;
 
@@ -8,11 +8,11 @@ use crate::git::{commit::Sha, Commit};
 newtype!(GitRef, String, Display, "A git reference to a git commit.");
 impl From<Commit> for GitRef {
     fn from(value: Commit) -> Self {
-        Self(value.sha().to_string())
+        Self(s!(value.sha()))
     }
 }
 impl From<Sha> for GitRef {
     fn from(value: Sha) -> Self {
-        Self(value.to_string())
+        Self(s!(value))
     }
 }

crates/core/src/git/repo_details.rs

@@ -5,7 +5,7 @@ use crate::{
         repository::open::{oreal::RealOpenRepository, OpenRepositoryLike},
         Generation,
     },
-    pike, BranchName, ForgeAlias, ForgeConfig, ForgeDetails, GitDir, Hostname, RemoteUrl,
+    pike, s, BranchName, ForgeAlias, ForgeConfig, ForgeDetails, GitDir, Hostname, RemoteUrl,
     RepoAlias, RepoConfig, RepoPath, ServerRepoConfig, StoragePathType,
 };
 
@@ -143,7 +143,7 @@ impl RepoDetails {
         // load config file
         let config_filename = &self.gitdir.join("config");
         let file = fs.file(config_filename);
-        let config_file = file.reader()?.to_string();
+        let config_file = file.reader()?;
         let mut config_lines = config_file
             .lines()
             .map(ToOwned::to_owned)
@@ -152,7 +152,7 @@ impl RepoDetails {
         let url_line = format!(r#"   url = "{url}""#);
         if config_lines
             .iter()
-            .any(|line| *line == r#"[remote "origin"]"#)
+            .any(|line| line == r#"[remote "origin"]"#)
         {
             tracing::debug!("has an 'origin' remote");
             config_lines
@@ -161,12 +161,12 @@ impl RepoDetails {
                 .for_each(|line| line.clone_from(&url_line));
         } else {
             tracing::debug!("has no 'origin' remote");
-            config_lines.push(r#"[remote "origin"]"#.to_owned());
+            config_lines.push(s!(r#"[remote "origin"]"#));
             config_lines.push(url_line);
         }
         tracing::debug!(?config_lines, "updated file");
         // write config file back out
-        file.write(config_lines.join("\n").as_str())?;
+        file.write(config_lines.join("\n"))?;
         Ok(())
     }
 }

crates/core/src/git/repository/factory.rs

@@ -1,11 +1,14 @@
 //
-use crate::git::{
+use crate::{
+    git::{
         self,
         repository::{
             open::{oreal::RealOpenRepository, OpenRepositoryLike},
             Direction, Result,
         },
         RepoDetails,
+    },
+    s,
 };
 
 use secrecy::ExposeSecret as _;
@@ -51,7 +54,7 @@ impl RepositoryFactory for RealRepositoryFactory {
     fn open(&self, repo_details: &RepoDetails) -> Result<Box<dyn OpenRepositoryLike>> {
         let repo = repo_details
             .open()
-            .map_err(|e| git::repository::Error::Open(e.to_string()))?;
+            .map_err(|e| git::repository::Error::Open(s!(e)))?;
         let found = repo.find_default_remote(Direction::Fetch);
         repo_details.assert_remote_url(found)?;
 

crates/core/src/git/repository/mod.rs

@@ -46,6 +46,8 @@ pub fn open(
     repository_factory: &dyn factory::RepositoryFactory,
     repo_details: &RepoDetails,
 ) -> Result<Box<dyn OpenRepositoryLike>> {
+    use crate::s;
+
     let open_repository = if repo_details.gitdir.exists() {
         info!("Local copy found - opening...");
         let repo = repository_factory.open(repo_details)?;
@@ -57,7 +59,7 @@ pub fn open(
     };
     info!("Validating...");
     validate_default_remotes(&*open_repository, repo_details)
-        .map_err(|e| Error::Validation(e.to_string()))?;
+        .map_err(|e| Error::Validation(s!(e)))?;
     Ok(open_repository)
 }
 
@@ -140,21 +142,24 @@ pub enum Error {
 }
 
 mod gix_errors {
-    #![cfg(not(tarpaulin_include))] // third-party library errors
+    #![cfg(not(tarpaulin_include))]
+    use crate::s;
+
+    // third-party library errors
     use super::Error;
     impl From<gix::clone::Error> for Error {
         fn from(value: gix::clone::Error) -> Self {
-            Self::Clone(value.to_string())
+            Self::Clone(s!(value))
         }
     }
     impl From<gix::open::Error> for Error {
         fn from(value: gix::open::Error) -> Self {
-            Self::Open(value.to_string())
+            Self::Open(s!(value))
         }
     }
     impl From<gix::clone::fetch::Error> for Error {
         fn from(value: gix::clone::fetch::Error) -> Self {
-            Self::Fetch(value.to_string())
+            Self::Fetch(s!(value))
         }
     }
 }

crates/core/src/git/repository/open/oreal.rs

@@ -1,7 +1,7 @@
 //
 use crate::{
     git::{self, repository::OpenRepositoryLike},
-    BranchName, ForgeDetails, Hostname, RemoteUrl, RepoPath,
+    s, BranchName, ForgeDetails, Hostname, RemoteUrl, RepoPath,
 };
 
 use derive_more::Constructor;
@@ -31,7 +31,7 @@ impl super::OpenRepositoryLike for RealOpenRepository {
                     Ok(refs.remote_branches().map(|rb| {
                         rb.filter_map(Result::ok)
                             .map(|r| r.name().to_owned())
-                            .map(|n| n.to_string())
+                            .map(|n| s!(n))
                             .filter_map(|p| {
                                 p.strip_prefix("refs/remotes/origin/")
                                     .map(ToOwned::to_owned)
@@ -157,39 +157,38 @@ impl super::OpenRepositoryLike for RealOpenRepository {
                 let thread_local = repo.to_thread_local();
                 let branch_head = thread_local
                     .rev_parse_single(branch)
-                    .map_err(|e| e.to_string())
+                    .map_err(|e| s!(e))
                     .map_err(as_gix_error(branch_name.clone()))?;
                 let object = branch_head
                     .object()
-                    .map_err(|e| e.to_string())
+                    .map_err(|e| s!(e))
                     .map_err(as_gix_error(branch_name.clone()))?;
                 let commit = object
                     .try_into_commit()
-                    .map_err(|e| e.to_string())
+                    .map_err(|e| s!(e))
                     .map_err(as_gix_error(branch_name.clone()))?;
                 let walk = thread_local
                     .rev_walk([commit.id])
                     .all()
-                    .map_err(|e| e.to_string())
+                    .map_err(|e| s!(e))
                     .map_err(as_gix_error(branch_name.clone()))?;
                 let mut commits = vec![];
                 for item in walk.take(limit) {
                     let item = item
-                        .map_err(|e| e.to_string())
+                        .map_err(|e| s!(e))
                         .map_err(as_gix_error(branch_name.clone()))?;
                     let commit = item
                         .object()
-                        .map_err(|e| e.to_string())
+                        .map_err(|e| s!(e))
                         .map_err(as_gix_error(branch_name.clone()))?;
-                    let id = commit.id().to_string();
+                    let id = commit.id();
                     let message = commit
                         .message_raw()
-                        .map_err(|e| e.to_string())
-                        .map_err(as_gix_error(branch_name.clone()))?
-                        .to_string();
+                        .map_err(|e| s!(e))
+                        .map_err(as_gix_error(branch_name.clone()))?;
                     let commit = git::Commit::new(
-                        git::commit::Sha::new(id),
-                        git::commit::Message::new(message),
+                        git::commit::Sha::new(s!(id)),
+                        git::commit::Message::new(s!(message)),
                     );
                     if find_commits.contains(&commit) {
                         commits.push(commit);
@@ -215,7 +214,7 @@ impl super::OpenRepositoryLike for RealOpenRepository {
                 let commit = obj.into_commit();
                 let tree = commit.tree()?;
                 let ent = tree
-                    .find_entry(file_name.to_string_lossy().to_string())
+                    .find_entry(s!(file_name.to_string_lossy()))
                     .ok_or(git::file::Error::FileNotFound)?;
                 let fobj = ent.object()?;
                 let blob = fobj.into_blob().take_data();
@@ -236,9 +235,9 @@ fn as_gix_error(branch: BranchName) -> impl FnOnce(String) -> git::commit::log::
 impl From<&RemoteUrl> for git::GitRemote {
     fn from(url: &RemoteUrl) -> Self {
         let host = url.host.clone().unwrap_or_default();
-        let path = url.path.to_string();
+        let path = s!(url.path);
         let path = path.strip_prefix('/').map_or(path.as_str(), |path| path);
         let path = path.strip_suffix(".git").map_or(path, |path| path);
-        Self::new(Hostname::new(host), RepoPath::new(path.to_string()))
+        Self::new(Hostname::new(host), RepoPath::new(s!(path)))
     }
 }

crates/core/src/git/repository/open/otest.rs

@@ -4,7 +4,7 @@ use crate::{
         self,
         repository::open::{OpenRepositoryLike, RealOpenRepository},
     },
-    BranchName, ForgeDetails, GitDir, RemoteUrl, RepoBranches,
+    s, BranchName, ForgeDetails, GitDir, RemoteUrl, RepoBranches,
 };
 
 use derive_more::Constructor;
@@ -174,10 +174,7 @@ impl TestOpenRepository {
         let config_file = fs.base().join(gitdir.to_path_buf()).join(".git/config");
         let file = fs.file(&config_file);
         #[allow(clippy::expect_used)]
-        let contents = file
-            .reader()
-            .expect("read original .git/config")
-            .to_string();
+        let contents = s!(file.reader().expect("read original .git/config"));
         let updated_contents = format!(
             r#"{contents}
 [remote "origin"]

crates/core/src/git/repository/tests/factory.rs

@@ -1,3 +1,5 @@
+use crate::s;
+
 //
 use super::*;
 
@@ -23,7 +25,7 @@ fn open_where_storage_external_auth_matches() -> TestResult {
     tracing::debug!(?result, "open");
     assert!(result.is_ok());
     // verify origin in .git/config matches url
-    let config = fs.file(&fs.base().join("config")).reader()?.to_string();
+    let config = s!(fs.file(&fs.base().join("config")).reader()?);
     tracing::debug!(config=?config.lines().collect::<Vec<_>>(), "auth");
     assert!(config.lines().any(|line| line.contains(url)));
     Ok(())
@@ -60,7 +62,7 @@ fn open_where_storage_external_auth_differs_error() -> TestResult {
     ));
 
     // verify origin in .git/config is unchanged
-    let config = fs.file(&fs.base().join("config")).reader()?.to_string();
+    let config = s!(fs.file(&fs.base().join("config")).reader()?);
     tracing::debug!(config=?config.lines().collect::<Vec<_>>(), "auth");
     assert!(config.lines().any(|line| line.contains(original_url))); // the original urk
     Ok(())
@@ -86,7 +88,7 @@ fn open_where_storage_internal_auth_matches() -> TestResult {
     tracing::debug!(?result, "open");
     assert!(result.is_ok());
     // verify origin in .git/config matches url
-    let config = fs.file(&fs.base().join("config")).reader()?.to_string();
+    let config = s!(fs.file(&fs.base().join("config")).reader()?);
     tracing::debug!(config=?config.lines().collect::<Vec<_>>(), "auth");
     assert!(
         config.lines().any(|line| line.contains(url)),
@@ -121,7 +123,7 @@ fn open_where_storage_internal_auth_differs_update_config() -> TestResult {
     assert!(result.is_ok());
 
     // verify origin in .git/config is unchanged
-    let config = fs.file(&fs.base().join("config")).reader()?.to_string();
+    let config = s!(fs.file(&fs.base().join("config")).reader()?);
     tracing::debug!(config=?config.lines().collect::<Vec<_>>(), "auth");
     assert!(
         config

crates/core/src/git/tests.rs

@@ -2,7 +2,7 @@
 use crate::{
     git::{self, Generation, GitRef, GitRemote, RepoDetails},
     git_dir::StoragePathType,
-    webhook, BranchName, ForgeAlias, ForgeConfig, ForgeType, GitDir, Hostname, RemoteUrl,
+    s, webhook, BranchName, ForgeAlias, ForgeConfig, ForgeType, GitDir, Hostname, RemoteUrl,
     RepoAlias, RepoBranches, RepoConfig, RepoConfigSource, RepoPath, ServerRepoConfig,
 };
 
@@ -17,6 +17,7 @@ use std::{
 type TestResult = Result<(), Box<dyn std::error::Error>>;
 
 mod commit {
+
     use super::*;
 
     #[test]
@@ -41,24 +42,25 @@ mod commit {
         let commit = git::Commit::from(push);
 
         let expected = git::Commit::new(
-            git::commit::Sha::new(sha.to_string()),
-            git::commit::Message::new(message.to_string()),
+            git::commit::Sha::new(sha),
+            git::commit::Message::new(message),
         );
 
         assert_eq!(commit, expected);
     }
 }
 mod generation {
+
     use super::*;
 
     #[test]
     fn should_increment() {
         let mut g = Generation::default();
-        assert_eq!(g.to_string(), "0");
+        assert_eq!(s!(g), "0");
 
         g.inc();
 
-        assert_eq!(g.to_string(), "1");
+        assert_eq!(s!(g), "1");
     }
 }
 mod gitref {
@@ -67,12 +69,12 @@ mod gitref {
     #[test]
     fn should_convert_from_commit() {
         let commit = git::Commit::new(
-            git::commit::Sha::new("sha".to_string()),
-            git::commit::Message::new("message".to_string()),
+            git::commit::Sha::new("sha"),
+            git::commit::Message::new("message"),
         );
         let gitref = GitRef::from(commit);
 
-        assert_eq!(gitref.to_string(), "sha");
+        assert_eq!(s!(gitref), "sha");
     }
 }
 mod gitremote {
@@ -81,16 +83,16 @@ mod gitremote {
 
     #[test]
     fn should_return_hostname() {
-        let host = Hostname::new("localhost".to_string());
-        let repo_path = RepoPath::new("kemitix/git-next".to_string());
+        let host = Hostname::new("localhost");
+        let repo_path = RepoPath::new(s!("kemitix/git-next"));
         let gr = GitRemote::new(host.clone(), repo_path);
 
         assert_eq!(gr.host(), &host);
     }
     #[test]
     fn should_return_repo_path() {
-        let host = Hostname::new("localhost".to_string());
-        let repo_path = RepoPath::new("kemitix/git-next".to_string());
+        let host = Hostname::new("localhost");
+        let repo_path = RepoPath::new(s!("kemitix/git-next"));
         let gr = GitRemote::new(host, repo_path.clone());
 
         assert_eq!(gr.repo_path(), &repo_path);
@@ -101,7 +103,7 @@ mod push {
 
     #[test]
     fn force_no_should_display() {
-        assert_eq!(git::push::Force::No.to_string(), "fast-forward");
+        assert_eq!(s!(git::push::Force::No), "fast-forward");
     }
 
     #[test]
@@ -109,7 +111,7 @@ mod push {
         let sha = given::a_name();
         let commit = given::a_commit_with_sha(&git::commit::Sha::new(sha.clone()));
         assert_eq!(
-            git::push::Force::From(GitRef::from(commit)).to_string(),
+            s!(git::push::Force::From(GitRef::from(commit))),
             format!("force-if-from:{sha}")
         );
     }
@@ -158,20 +160,13 @@ mod repo_details {
         let rd = RepoDetails::new(
             Generation::default(),
             &RepoAlias::new("foo"),
-            &ServerRepoConfig::new(
-                "repo".to_string(),
-                "branch".to_string(),
-                None,
-                None,
-                None,
-                None,
-            ),
-            &ForgeAlias::new("default".to_string()),
+            &ServerRepoConfig::new(s!("repo"), s!("branch"), None, None, None, None),
+            &ForgeAlias::new("default"),
             &ForgeConfig::new(
                 ForgeType::MockForge,
-                "host".to_string(),
-                "user".to_string(),
-                "token".to_string(),
+                s!("host"),
+                s!("user"),
+                s!("token"),
                 given::maybe_a_number(), // max dev commits
                 BTreeMap::new(),
             ),
@@ -303,7 +298,7 @@ pub mod given {
 
     pub fn a_webhook_push(sha: &git::commit::Sha, message: &git::commit::Message) -> webhook::Push {
         let branch = a_branch_name();
-        webhook::Push::new(branch, sha.to_string(), message.to_string())
+        webhook::Push::new(branch, s!(sha), s!(message))
     }
 
     pub fn a_filesystem() -> kxio::fs::TempFileSystem {
@@ -338,7 +333,7 @@ pub mod given {
         repo.persist();
         // load config file
         let file = fs.file(&path.join("config"));
-        let config_file = file.reader().unwrap().to_string();
+        let config_file = file.reader().unwrap();
         // add use are origin url
         let mut config_lines = config_file.lines().collect::<Vec<_>>();
         config_lines.push(r#"[remote "origin"]"#);
@@ -417,12 +412,12 @@ pub mod then {
             .join(gitdir.to_path_buf())
             .join(".git")
             .join("refs");
-        let local_branch = gitrefs.join("heads").join(branch_name.to_string().as_str());
+        let local_branch = gitrefs.join("heads").join(branch_name.as_str());
         let origin_heads = gitrefs.join("remotes").join("origin");
-        let remote_branch = origin_heads.join(branch_name.to_string().as_str());
-        let contents = fs.file(&local_branch).reader()?.to_string();
+        let remote_branch = origin_heads.join(branch_name.as_str());
+        let contents = fs.file(&local_branch).reader()?;
         fs.dir(&origin_heads).create_all()?;
-        fs.file(&remote_branch).write(&contents)?;
+        fs.file(&remote_branch).write(s!(contents))?;
         Ok(())
     }
 
@@ -431,7 +426,7 @@ pub mod then {
             &format!("git checkout -b {branch_name}"),
             std::process::Command::new("/usr/bin/git")
                 .current_dir(gitdir.to_path_buf())
-                .args(["checkout", "-b", branch_name.to_string().as_str()])
+                .args(["checkout", "-b", branch_name.as_str()])
                 .output(),
         )?;
         Ok(())
@@ -442,7 +437,7 @@ pub mod then {
             &format!("git switch {branch_name}"),
             std::process::Command::new("/usr/bin/git")
                 .current_dir(gitdir.to_path_buf())
-                .args(["switch", branch_name.to_string().as_str()])
+                .args(["switch", branch_name.as_str()])
                 .output(),
         )
     }
@@ -474,7 +469,7 @@ pub mod then {
             &format!("git add {file:?}"),
             std::process::Command::new("/usr/bin/git")
                 .current_dir(gitdir.to_path_buf())
-                .args(["add", file.display().to_string().as_str()])
+                .args(["add", s!(file.display()).as_str()])
                 .output(),
         )
     }
@@ -484,10 +479,7 @@ pub mod then {
             &format!(r#"git commit -m"Added {file:?}""#),
             std::process::Command::new("/usr/bin/git")
                 .current_dir(gitdir.to_path_buf())
-                .args([
-                    "commit",
-                    format!(r#"-m"Added {}"#, file.display().to_string().as_str()).as_str(),
-                ])
+                .args(["commit", format!(r#"-m"Added {}"#, file.display()).as_str()])
                 .output(),
         )
     }
@@ -513,8 +505,8 @@ pub mod then {
             .join(".git")
             .join("refs")
             .join("heads")
-            .join(branch_name.to_string().as_str());
-        let sha = fs.file(&main_ref).reader()?.to_string();
-        Ok(git::commit::Sha::new(sha.trim().to_string()))
+            .join(branch_name.as_str());
+        let sha = fs.file(&main_ref).reader()?;
+        Ok(git::commit::Sha::new(s!(sha).trim()))
     }
 }

crates/core/src/git/user_notification.rs

@@ -37,7 +37,7 @@ pub enum UserNotification {
 impl UserNotification {
     #[must_use]
     pub fn as_json(&self, timestamp: time::OffsetDateTime) -> serde_json::Value {
-        let timestamp = timestamp.unix_timestamp().to_string();
+        let timestamp = timestamp.unix_timestamp();
         match self {
             Self::CICheckFailed {
                 forge_alias,

crates/core/src/git/validation/positions.rs

@@ -1,7 +1,7 @@
 //
 use crate::{
     git::{self, repository::open::OpenRepositoryLike, RepoDetails, UserNotification},
-    BranchName, RepoConfig,
+    s, BranchName, RepoConfig,
 };
 use tracing::{debug, instrument};
 
@@ -179,11 +179,11 @@ pub enum Error {
 }
 impl From<git::fetch::Error> for Error {
     fn from(value: git::fetch::Error) -> Self {
-        Self::Retryable(value.to_string())
+        Self::Retryable(s!(value))
     }
 }
 impl From<git::commit::log::Error> for Error {
     fn from(value: git::commit::log::Error) -> Self {
-        Self::Retryable(value.to_string())
+        Self::Retryable(s!(value))
     }
 }

crates/core/src/git/validation/remotes.rs

@@ -1,7 +1,7 @@
 //
 use crate::{
     git::{self, repository::open::OpenRepositoryLike},
-    RemoteUrl,
+    s, RemoteUrl,
 };
 
 use tracing::info;
@@ -18,9 +18,9 @@ pub fn validate_default_remotes(
         .find_default_remote(git::repository::Direction::Fetch)
         .ok_or(Error::NoDefaultFetchRemote)?;
     let Some(remote_url) = repo_details.remote_url() else {
-        return Err(git::validation::remotes::Error::UnableToOpenRepo(
-            "Unable to build forge url".to_string(),
-        ));
+        return Err(git::validation::remotes::Error::UnableToOpenRepo(s!(
+            "Unable to build forge url"
+        )));
     };
     info!(config = %remote_url, push = %push_remote, fetch = %fetch_remote, "Check remotes match");
     if !remote_url.matches(&push_remote) {

crates/core/src/git/validation/tests.rs

@@ -10,7 +10,7 @@ use crate::{
         tests::{given, then},
         validation::positions::validate,
     },
-    GitDir, StoragePathType,
+    s, GitDir, StoragePathType,
 };
 
 use assert2::let_assert;
@@ -102,7 +102,7 @@ mod positions {
                     if branch_name == &main_branch {
                         Err(git::commit::log::Error::Gix {
                             branch: branch_name.clone(),
-                            error: "foo".to_string(),
+                            error: s!("foo"),
                         })
                     } else {
                         Ok(vec![])
@@ -141,7 +141,7 @@ mod positions {
                     if branch_name == &next_branch {
                         Err(git::commit::log::Error::Gix {
                             branch: branch_name.clone(),
-                            error: "foo".to_string(),
+                            error: s!("foo"),
                         })
                     } else {
                         Ok(vec![given::a_commit()])
@@ -180,7 +180,7 @@ mod positions {
                     if branch_name == &dev_branch {
                         Err(git::commit::log::Error::Gix {
                             branch: branch_name.clone(),
-                            error: "foo".to_string(),
+                            error: s!("foo"),
                         })
                     } else {
                         Ok(vec![given::a_commit()])

crates/core/src/macros/mod.rs

@@ -1,2 +1,15 @@
 mod message;
 mod newtype;
+mod owned_string;
+
+#[cfg(test)]
+mod tests {
+    use crate::s;
+
+    #[test]
+    fn macro_s_to_string() {
+        let s: String = s!("this");
+
+        assert_eq!(s, "this");
+    }
+}

crates/core/src/macros/owned_string.rs

@@ -0,0 +1,9 @@
+//
+
+/// Converts the value into a [String] by calling the `std::fmt::Display::to_string` on the value.
+#[macro_export]
+macro_rules! s {
+    ($value:expr) => {
+        $value.to_string()
+    };
+}