create tmp plots and move them after generation (does not affect html plots)

drees.py

@@ -2,6 +2,7 @@ import argparse
 import json
 import logging
 import os
+import re
 from datetime import datetime as dt
 from enum import Enum
 from functools import partial
@@ -21,10 +22,17 @@ DATE_FORMAT = "%Y-%m-%d"
 
 DATA_URL = "https://data.drees.solidarites-sante.gouv.fr/api/records/1.0/search/?dataset=covid-19-resultats-par-age-issus-des-appariements-entre-si-vic-si-dep-et-vac-si&q=&rows=-1&facet=date&facet=vac_statut&facet=age"
 DATA_REPOSITORY = "data"
+
 STATIC_REPOSITORY = "static"
 OUTPUT_REPOSITORY = os.path.join(STATIC_REPOSITORY, "plots")
 BUILD_REPOSITORY = "build"
 
+TMP_SUFFIX = ".tmp"
+FORMAT_SUFFIX = ".png"
+OUTPUT_SUFFIX = f"{TMP_SUFFIX}{FORMAT_SUFFIX}"
+
+TMP_FILE_REGEX = re.compile(r"^.*{}$".format(OUTPUT_SUFFIX.replace(".", "\.")))
+
 MAIN_URL = "https://covid.thegux.fr/"
 
 # cycler could be better, but for ages plots it's ok
@@ -270,7 +278,7 @@ def save_and_close_fig(
         plt.legend()
     if is_tight:
         plt.tight_layout()
-    plt.savefig(output_path)
+    plt.savefig(f"{output_path}{OUTPUT_SUFFIX}")
     plt.close(fig)
     logging.info(f"{output_path} plotted")
 
@@ -499,6 +507,16 @@ def get_age_field_args() -> List[Tuple[AgeGroup, Field]]:
     return pool_args
 
 
+def move_tmp_plots() -> None:
+    """
+    move .tmp.png plots into .png after generation
+    """
+    for filename in os.listdir(OUTPUT_REPOSITORY):
+        file_path = os.path.join(OUTPUT_REPOSITORY, filename)
+        if re.match(TMP_FILE_REGEX, filename):
+            os.rename(file_path, file_path.replace(OUTPUT_SUFFIX, FORMAT_SUFFIX))
+
+
 def generate_html_page(np_date: np.ndarray) -> None:
     logging.info("generating html page with plots...")
     os.makedirs(BUILD_REPOSITORY, exist_ok=True)
@@ -515,7 +533,7 @@ def generate_html_page(np_date: np.ndarray) -> None:
             "status": VacStatus,
             "static": os.path.join(MAIN_URL, STATIC_REPOSITORY),
             "src": DATA_URL,
-            "period": f"{date_start} -> {date_end}"
+            "period": f"{date_start} -> {date_end}",
         }
     )
     with open(os.path.join(BUILD_REPOSITORY, "index.html"), "w") as f:
@@ -585,5 +603,7 @@ if __name__ == "__main__":
             plot_cumulative_field(np_data, np_date, field)
             plot_bar_age_percent_by_field(np_data, np_date, field)
 
+        move_tmp_plots()
+
     if args.to_html:
         generate_html_page(np_date)