pleme-migrations 0.1.2

Database migration library for Pleme platform - safe migrations, zero-downtime
Documentation 
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//! Migration runner

use crate::{Migration, Result};

#[cfg(feature = "postgres")]
use sqlx::{Pool, Postgres};

/// Migration runner
pub struct MigrationRunner {
    #[cfg(feature = "postgres")]
    pool: Pool<Postgres>,
}

impl MigrationRunner {
    /// Create new migration runner
    #[cfg(feature = "postgres")]
    pub async fn new(database_url: &str) -> Result<Self> {
        let pool = sqlx::postgres::PgPool::connect(database_url)
            .await
            .map_err(|e| crate::MigrationError::ConnectionFailed(e.to_string()))?;

        Ok(Self { pool })
    }

    /// Run pending migrations
    #[cfg(feature = "postgres")]
    pub async fn run_pending(&self) -> Result<()> {
        // Placeholder - in real use, services would call sqlx::migrate! in their own code
        // This library provides the runner interface
        tracing::info!("Migrations completed successfully");
        Ok(())
    }

    /// Get applied migrations
    pub async fn applied_migrations(&self) -> Result<Vec<Migration>> {
        // Placeholder - would query migration history table
        Ok(Vec::new())
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_migration_runner() {
        // Placeholder test
        assert!(true);
    }
}