fix/2025-07-23-git-config-status #23

ackkerman · 2025-07-23T09:53:28Z

Summary

handle failures from git config in Config::save
add shim to simulate failing git config
test error propagation when git config fails

Testing

cargo test

https://chatgpt.com/codex/tasks/task_e_6880affddcbc8330a50b510885c67c9b

gemini-code-assist

Summary of Changes

Hello @ackkerman, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly improves the robustness of git config operations within the application by adding explicit checks for command execution failures and ensuring these errors are properly propagated. It also includes new testing utilities and an integration test to validate this enhanced error handling, making the application more resilient to underlying git command issues.

Highlights

Error Handling: I've enhanced the Config::save function in src/config.rs to explicitly check the ExitStatus of git config commands. Previously, it only propagated std::io::Error if the command couldn't be run; now, it also returns a specific anyhow::Error if git config itself exits with a non-zero status, indicating a configuration failure.
Testing Infrastructure: I've introduced a new test utility function, fake_git_fail_config, in tests/cli.rs. This function creates a shell script shim that simulates a failing git config command, allowing for robust testing of error scenarios.
Integration Testing: A new integration test, connect_fails_on_git_config_error, has been added to tests/cli.rs. This test uses the fake_git_fail_config shim to verify that the gh-sync connect command correctly handles and propagates errors when git config operations fail.

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Code Review

This pull request correctly adds error handling for failed git config commands in Config::save and includes a new test case to verify this behavior. The changes are a good improvement.

My review includes a few suggestions to enhance the code quality:

Refactoring duplicated code in the save method to improve maintainability.
Improving the readability of a test shim by using a raw string literal, which is also more consistent with existing test code.
Fixing a cross-platform compatibility issue in a new test by using the correct PATH separator constant.

These changes will make the code more robust and easier to maintain.

gemini-code-assist · 2025-07-23T09:55:57Z

tests/cli.rs

+    let git_shim = fake_git_fail_config(&repo);
+
+    let path_env = format!(
+        "{}:{}",


The PATH separator ":" is hardcoded. This will cause the test to fail on Windows, where the separator is ";". For cross-platform compatibility, you should use std::env::consts::PATH_SEPARATOR.

Suggested change

"{}:{}",

"{}{}{}",

gemini-code-assist · 2025-07-23T09:55:57Z

tests/cli.rs

+    let path_env = format!(
+        "{}:{}",
+        git_shim.parent().unwrap().display(),
+        std::env::var("PATH").unwrap()


To accommodate the change to a three-part format string, you'll need to add std::env::consts::PATH_SEPARATOR as an argument here.

Suggested change

std::env::var("PATH").unwrap()

git_shim.parent().unwrap().display(),

std::env::consts::PATH_SEPARATOR,

std::env::var("PATH").unwrap()

gemini-code-assist · 2025-07-23T09:55:57Z

src/config.rs

        for (name, m) in &self.mappings {
            let key_remote = format!("{CONFIG_PREFIX}.{}.remote", name);
-            Command::new("git")
+            let status = Command::new("git")
                .args(["config", "--local", "--replace-all", &key_remote, &m.remote])
                .current_dir(repo_root)
                .status()?;
+            if !status.success() {
+                return Err(anyhow!("git config failed to set {key_remote}"));
+            }

            let key_url = format!("{CONFIG_PREFIX}.{}.url", name);
-            Command::new("git")
+            let status = Command::new("git")
                .args(["config", "--local", "--replace-all", &key_url, &m.url])
                .current_dir(repo_root)
                .status()?;
+            if !status.success() {
+                return Err(anyhow!("git config failed to set {key_url}"));
+            }

            let key_branch = format!("{CONFIG_PREFIX}.{}.branch", name);
-            Command::new("git")
+            let status = Command::new("git")
                .args(["config", "--local", "--replace-all", &key_branch, &m.branch])
                .current_dir(repo_root)
                .status()?;
+            if !status.success() {
+                return Err(anyhow!("git config failed to set {key_branch}"));
+            }
        }


There's significant code duplication in this loop for setting the remote, url, and branch git config values. This can be refactored to improve maintainability and reduce redundancy.

You can iterate over a collection of field names and their corresponding values to avoid repeating the Command setup and execution logic.

for (name, m) in &self.mappings { let fields_to_set = [ ("remote", &m.remote), ("url", &m.url), ("branch", &m.branch), ]; for (field, value) in fields_to_set { let key = format!("{CONFIG_PREFIX}.{}.{}", name, field); let status = Command::new("git") .args(["config", "--local", "--replace-all", &key, value]) .current_dir(repo_root) .status()?; if !status.success() { return Err(anyhow!("git config failed to set {key}")); } } }

gemini-code-assist · 2025-07-23T09:55:57Z

tests/cli.rs

+    let shim = dir.path().join("git");
+    fs::write(
+        &shim,
+        "#!/usr/bin/env sh\nif [ \"$1\" = \"config\" ]; then\n    exit 1\nelse\n    echo git \"$@\"\n    exit 0\nfi\n",


For better readability and consistency with other test helpers in this file (like fake_git_fail_pull), consider using a raw string literal for the multi-line shell script. This avoids the need for escaping quotes and explicitly adding newline characters (\n).

Suggested change

"#!/usr/bin/env sh\nif [ \"$1\" = \"config\" ]; then\n exit 1\nelse\n echo git \"$@\"\n exit 0\nfi\n",

r#"#!/usr/bin/env sh

if [ "$1" = "config" ]; then

exit 1

else

echo git "$@"

exit 0

fi

"#,

Handle git config failures

63b8dd9

ackkerman added the codex label Jul 23, 2025 — with ChatGPT Codex Connector

gemini-code-assist bot reviewed Jul 23, 2025

View reviewed changes

ackkerman merged commit 1978985 into main Jul 23, 2025
1 check passed

gemini-code-assist bot reviewed Jul 23, 2025

View reviewed changes

ackkerman deleted the 2025-07-23-check-git-config-command-success branch July 23, 2025 10:08

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-        "#!/usr/bin/env sh\nif [ \"$1\" = \"config\" ]; then\n    exit 1\nelse\n    echo git \"$@\"\n    exit 0\nfi\n",
+        r#"#!/usr/bin/env sh
+if [ "$1" = "config" ]; then
+    exit 1
+else
+    echo git "$@"
+    exit 0
+fi
+"#,

fix/2025-07-23-git-config-status #23

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ackkerman commented Jul 23, 2025

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