The well-digger and his family marching home from town.
The well-digger's two older daughters take care of the family, but the movie concerns one daughter in particular--the very beautiful Patricia, who had grown up in Paris as the child-companion of a wealthy woman. Returning to her birthplace, Patricia takes on the job of rearing the younger girls in the family and with her sister, all the housekeeping chores that keep her father and his brood intact. Woe to Patricia when she by chance meets the good-looking son of the local retailer, who soon woos the saintly young woman, who, despite her humble background, has the air of refinement of a Parisian. Within a day of the wooing, the young man is off to war, leaving Patricia, who, it turns out, is now pregant. Crisis in the home of M. Pascal Amoretti, well-digger. Amoretti's attempts to marry his daughter off to his co-worker are of no avail, and he bids her to leave home and have her child at her aunt's in a town far enough away, he hopes, that no scandal will come to his name and household.
The rest of the movie concerns the reconciliation of father with daughter and with the family of the seducer, which had had no interest in aiding Patricia or her offspring.
Patricia delivers the mid-day meal to her father (r) and his co-worker, who is smitten with her.
I have never read any books by Marcel Pagnol's but I also found charming two French films based on his autobiographical works, My Father's Glory (1990) and My Mother's Castle (both available at Netflix). Watching them, I can see why joie de vivre is a French phrase.
Pascal Amoretti embraces his fallen daughter.