refac: move transaction utils to core

migra/src/clients/mod.rs

@@ -35,3 +35,32 @@ pub use self::mysql::Client as MysqlClient;
 pub mod sqlite;
 #[cfg(feature = "sqlite")]
 pub use self::sqlite::Client as SqliteClient;
+
+pub fn with_transaction<TrxFnMut, Res>(
+    client: &mut AnyClient,
+    trx_fn: &mut TrxFnMut,
+) -> MigraResult<Res>
+where
+    TrxFnMut: FnMut(&mut AnyClient) -> MigraResult<Res>,
+{
+    client
+        .begin_transaction()
+        .and_then(|_| trx_fn(client))
+        .and_then(|res| client.commit_transaction().and(Ok(res)))
+        .or_else(|err| client.rollback_transaction().and(Err(err)))
+}
+
+pub fn maybe_with_transaction<TrxFnMut, Res>(
+    is_needed: bool,
+    client: &mut AnyClient,
+    trx_fn: &mut TrxFnMut,
+) -> MigraResult<Res>
+where
+    TrxFnMut: FnMut(&mut AnyClient) -> MigraResult<Res>,
+{
+    if is_needed {
+        with_transaction(client, trx_fn)
+    } else {
+        trx_fn(client)
+    }
+}

migra/src/lib.rs

@@ -4,11 +4,11 @@
 
 pub mod clients;
 
+mod errors;
 pub mod fs;
 pub mod managers;
 pub mod migration;
 
-mod errors;
+pub use clients::{maybe_with_transaction, with_transaction};
 pub use errors::{Error, MigraResult as Result, StdResult};
-
 pub use migration::Migration;

migra_cli/src/commands/apply.rs

@@ -20,14 +20,14 @@ pub(crate) fn apply_sql(app: &App, cmd_opts: &ApplyCommandOpt) -> migra::StdResu
         .map(std::fs::read_to_string)
         .collect::<Result<Vec<_>, _>>()?;
 
-    database::maybe_with_transaction(
+    migra::maybe_with_transaction(
         cmd_opts.transaction_opts.single_transaction,
         &mut client,
         &mut |mut client| {
             file_contents
                 .iter()
                 .try_for_each(|content| {
-                    database::maybe_with_transaction(
+                    migra::maybe_with_transaction(
                         !cmd_opts.transaction_opts.single_transaction,
                         &mut client,
                         &mut |client| client.apply_sql(content),

migra_cli/src/commands/downgrade.rs

@@ -32,7 +32,7 @@ pub(crate) fn rollback_applied_migrations(
         })
         .collect::<Result<Vec<_>, _>>()?;
 
-    database::maybe_with_transaction(
+    migra::maybe_with_transaction(
         opts.transaction_opts.single_transaction,
         &mut client,
         &mut |mut client| {
@@ -41,7 +41,7 @@ pub(crate) fn rollback_applied_migrations(
                 .try_for_each(|(migration_name, content)| {
                     if all_migrations.contains_name(migration_name) {
                         println!("downgrade {}...", migration_name);
-                        database::maybe_with_transaction(
+                        migra::maybe_with_transaction(
                             !opts.transaction_opts.single_transaction,
                             &mut client,
                             &mut |client| client.run_downgrade_migration(migration_name, &content),

migra_cli/src/commands/upgrade.rs

@@ -53,7 +53,7 @@ pub(crate) fn upgrade_pending_migrations(
         })
         .collect::<Result<Vec<_>, _>>()?;
 
-    database::maybe_with_transaction(
+    migra::maybe_with_transaction(
         opts.transaction_opts.single_transaction,
         &mut client,
         &mut |mut client| {
@@ -61,7 +61,7 @@ pub(crate) fn upgrade_pending_migrations(
                 .iter()
                 .try_for_each(|(migration_name, content)| {
                     println!("upgrade {}...", migration_name);
-                    database::maybe_with_transaction(
+                    migra::maybe_with_transaction(
                         !opts.transaction_opts.single_transaction,
                         &mut client,
                         &mut |client| client.run_upgrade_migration(migration_name, &content),

migra_cli/src/database.rs

@@ -42,32 +42,3 @@ pub fn create_client_from_config(config: &Config) -> migra::StdResult<AnyClient>
     )
     .map_err(From::from)
 }
-
-pub fn with_transaction<TrxFnMut, Res>(
-    client: &mut AnyClient,
-    trx_fn: &mut TrxFnMut,
-) -> migra::Result<Res>
-where
-    TrxFnMut: FnMut(&mut AnyClient) -> migra::Result<Res>,
-{
-    client
-        .begin_transaction()
-        .and_then(|_| trx_fn(client))
-        .and_then(|res| client.commit_transaction().and(Ok(res)))
-        .or_else(|err| client.rollback_transaction().and(Err(err)))
-}
-
-pub fn maybe_with_transaction<TrxFnMut, Res>(
-    is_needed: bool,
-    client: &mut AnyClient,
-    trx_fn: &mut TrxFnMut,
-) -> migra::Result<Res>
-where
-    TrxFnMut: FnMut(&mut AnyClient) -> migra::Result<Res>,
-{
-    if is_needed {
-        with_transaction(client, trx_fn)
-    } else {
-        trx_fn(client)
-    }
-}