src/heatmap.cpp

changeset 5
60c2588b4455
child 10
bf159cf9f4b6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/heatmap.cpp	Fri Jan 31 22:11:04 2025 +0100
@@ -0,0 +1,58 @@
+/* Copyright 2025 Mike Becker. All rights reserved.
+*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "heatmap.h"
+
+#include <charconv>
+#include <ranges>
+#include <chrono>
+
+namespace chrono = std::chrono;
+
+void fm::heatmap::add(const std::string &log) {
+    using std::string_view_literals::operator ""sv;
+
+    for (auto &&line: std::views::split(log, "\n"sv)) {
+        if (line.empty()) continue;
+        auto parts = std::views::split(line, "#"sv).begin();
+        auto author_range = *parts;
+        std::string author{author_range.begin(), author_range.end()};
+
+        int year = 0;
+        unsigned int month = 0, day = 0;
+        unsigned part = 0;
+        for (auto &&date_part: std::views::split(*++parts, "-"sv)) {
+            std::string_view dp{date_part.begin(), date_part.end()};
+            int val;
+            // no error handling, we trust hg and git
+            std::from_chars(dp.begin(), dp.end(), val);
+            switch (part++) {
+                case 0: year = val; break;
+                case 1: month = val; break;
+                default: day = val; break;
+            }
+        }
+        m_heatmap[m_current_repo][author][chrono::year_month_day{chrono::year{year}, chrono::month{month}, chrono::day{day}}]++;
+    }
+}

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