Skip empty XDG values in shellexec

[esimkowitz]

No description provided.

[coderabbitai]

Walkthrough

The change involves a modification in the StartLocalShellProc function within the pkg/shellexec/shellexec.go file. The update alters the logic used for handling XDG environment variables during a Snap installation. Previously, if a variable was present in the list, it was unconditionally updated with the value from pamEnvs. The new implementation adds a conditional check so that the variable is only updated if the corresponding value from pamEnvs is non-empty. No new functions are introduced, and there are no modifications to the signatures of exported or public entities.

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Actionable comments posted: 0

🧹 Nitpick comments (1)

pkg/shellexec/shellexec.go (1)

531-533: Consider enhancing logging and maintainability.

A few suggestions to improve the code:

1. Make the log message more specific about which XDG variables are being corrected
2. Consider defining XDG variable names as constants to prevent typos and improve maintainability

+const (
+    XDG_CONFIG_HOME  = "XDG_CONFIG_HOME"
+    XDG_DATA_HOME    = "XDG_DATA_HOME"
+    XDG_CACHE_HOME   = "XDG_CACHE_HOME"
+    XDG_RUNTIME_DIR  = "XDG_RUNTIME_DIR"
+    XDG_CONFIG_DIRS  = "XDG_CONFIG_DIRS"
+    XDG_DATA_DIRS    = "XDG_DATA_DIRS"
+)

-log.Printf("Detected Snap installation, correcting XDG environment variables")
+log.Printf("Detected Snap installation, correcting XDG environment variables: CONFIG_HOME, DATA_HOME, CACHE_HOME, RUNTIME_DIR, CONFIG_DIRS, DATA_DIRS")
-varsToReplace := map[string]string{"XDG_CONFIG_HOME": "", "XDG_DATA_HOME": "", "XDG_CACHE_HOME": "", "XDG_RUNTIME_DIR": "", "XDG_CONFIG_DIRS": "", "XDG_DATA_DIRS": ""}
+varsToReplace := map[string]string{
+    XDG_CONFIG_HOME:  "",
+    XDG_DATA_HOME:    "",
+    XDG_CACHE_HOME:   "",
+    XDG_RUNTIME_DIR:  "",
+    XDG_CONFIG_DIRS:  "",
+    XDG_DATA_DIRS:    "",
+}

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📥 Commits

Reviewing files that changed from the base of the PR and between 27c01cf and 10b0666.

📒 Files selected for processing (1)

• pkg/shellexec/shellexec.go (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (3)

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• GitHub Check: Analyze (go)

🔇 Additional comments (1)

pkg/shellexec/shellexec.go (1)

537-537: LGTM! Good defensive programming.

The additional check for non-empty PAM environment variables is a good improvement. This prevents overwriting existing XDG environment variables with empty values, which could potentially break applications that rely on these variables being set.