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Derive map "last updated" date from git commit history instead of hardcoded constant #121

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Derive map "last updated" date from git commit history instead of hardcoded constant #121

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b99a436
Initial plan
Copilot Mar 6, 2026
53ca876
Add last-updated date to Footprint in USA map page
Copilot Mar 6, 2026
975fd69
Derive last-updated date from git commit history of data file
Copilot Mar 6, 2026
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24 changes: 24 additions & 0 deletions src/pages/experiences/usa.astro
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
---
import { execSync } from "child_process"
import MainLayout from "../../layouts/MainLayout.astro"
import Subheading from "../../components/Subheading.astro"
// import USAMap from "../../components/maps/USAMap.jsx"
Expand Down Expand Up @@ -50,6 +51,24 @@ const visitedStates = getUniqueStates(visitedPlaces)
const allYears = getUniqueYears(visitedPlaces)
const nationalParks = countNationalParks(visitedPlaces)

// Format last updated date
const DATA_FILE = "src/data/usa-travel-data.js"
let lastUpdatedFormatted: string | null = null
try {
const gitDate = execSync(`git log -1 --format=%cI -- ${DATA_FILE}`, {
encoding: "utf8",
}).trim()
if (gitDate) {
lastUpdatedFormatted = new Date(gitDate).toLocaleDateString("en-US", {
year: "numeric",
month: "long",
timeZone: "UTC",
})
}
} catch {
// git unavailable at build time — omit the date
}

// Group places by category for better organization
// const placesByCategory = groupPlacesByCategory(visitedPlaces)
---
Expand Down Expand Up @@ -135,6 +154,11 @@ const nationalParks = countNationalParks(visitedPlaces)
<p class="text-sm text-gray-400 mb-6">
Click on any of the places to see more details.
</p>
{lastUpdatedFormatted && (
<p class="text-xs text-gray-500 mb-4">
<i class="fas fa-clock mr-1" aria-hidden="true"></i>Map data last updated: {lastUpdatedFormatted}
</p>
)}
<div class="bg-rich-black border border-vivid-blue rounded-lg p-4 mb-8">
<USAMapWithErrorBoundary places={visitedPlaces} client:load />
</div>
Expand Down