feat: Environment variable interpolation in the Gman configuration file

src/providers/aws_secrets_manager.rs

@@ -1,3 +1,4 @@
+use crate::config::deserialize_optional_env_var;
 use crate::providers::SecretProvider;
 use anyhow::Context;
 use anyhow::Result;
@@ -32,8 +33,10 @@ use validator::Validate;
 #[serde(deny_unknown_fields)]
 pub struct AwsSecretsManagerProvider {
     #[validate(required)]
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub aws_profile: Option<String>,
     #[validate(required)]
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub aws_region: Option<String>,
 }
 

src/providers/azure_key_vault.rs

@@ -1,3 +1,4 @@
+use crate::config::deserialize_optional_env_var;
 use crate::providers::SecretProvider;
 use anyhow::{Context, Result};
 use azure_identity::DefaultAzureCredential;
@@ -30,6 +31,7 @@ use validator::Validate;
 #[serde(deny_unknown_fields)]
 pub struct AzureKeyVaultProvider {
     #[validate(required)]
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub vault_name: Option<String>,
 }
 

src/providers/gcp_secret_manager.rs

@@ -1,3 +1,4 @@
+use crate::config::deserialize_optional_env_var;
 use crate::providers::SecretProvider;
 use anyhow::{Context, Result, anyhow};
 use gcloud_sdk::google::cloud::secretmanager::v1;
@@ -39,6 +40,7 @@ type SecretsManagerClient = GoogleApi<SecretManagerServiceClient<GoogleAuthMiddl
 #[serde(deny_unknown_fields)]
 pub struct GcpSecretManagerProvider {
     #[validate(required)]
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub gcp_project_id: Option<String>,
 }
 

src/providers/gopass.rs

@@ -1,3 +1,4 @@
+use crate::config::deserialize_optional_env_var;
 use crate::providers::{ENV_PATH, SecretProvider};
 use anyhow::{Context, Result, anyhow};
 use serde::{Deserialize, Serialize};
@@ -28,6 +29,7 @@ use validator::Validate;
 #[derive(Debug, Default, Clone, Validate, Serialize, Deserialize, PartialEq, Eq)]
 #[serde(deny_unknown_fields)]
 pub struct GopassProvider {
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub store: Option<String>,
 }
 

src/providers/local.rs

@@ -1,3 +1,5 @@
+use crate::config::deserialize_optional_env_var;
+use crate::config::deserialize_optional_pathbuf_env_var;
 use anyhow::{Context, anyhow, bail};
 use secrecy::{ExposeSecret, SecretString};
 use std::collections::HashMap;
@@ -50,14 +52,21 @@ use validator::Validate;
 #[derive(Debug, Clone, Validate, Serialize, Deserialize, PartialEq, Eq)]
 #[serde(deny_unknown_fields)]
 pub struct LocalProvider {
+    #[serde(default, deserialize_with = "deserialize_optional_pathbuf_env_var")]
     pub password_file: Option<PathBuf>,
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub git_branch: Option<String>,
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub git_remote_url: Option<String>,
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub git_user_name: Option<String>,
     #[validate(email)]
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub git_user_email: Option<String>,
+    #[serde(default, deserialize_with = "deserialize_optional_pathbuf_env_var")]
     pub git_executable: Option<PathBuf>,
     #[serde(skip)]
+    #[serde(default, deserialize_with = "deserialize_optional_env_var")]
     pub runtime_provider_name: Option<String>,
 }