bat/tests/snapshots/generate_snapshots.py

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#!/usr/bin/env python3
import itertools
import subprocess
import pathlib
import shutil
def generate_snapshots():
single_styles = ["changes", "grid", "header", "numbers"]
collective_styles = ["full", "plain"]
for num in range(len(single_styles)):
for grouped in itertools.combinations(single_styles, num + 1):
generate_snapshot(",".join(grouped))
for style in collective_styles:
generate_snapshot(style)
def generate_snapshot(option):
command = "../../target/debug/bat --style={0} sample.rs > output/{0}.snapshot.txt".format(
option
)
print("generating snapshot for {}".format(option))
subprocess.call(command, shell=True)
def prepare_output_dir():
shutil.rmtree("output", ignore_errors=True)
pathlib.Path("output").mkdir()
def modify_sample_file():
print("modifying sample.rs to show changes")
shutil.copyfile("sample.modified.rs", "sample.rs")
def undo_sample_file_modification():
print("undoing sample.rs modifications")
subprocess.call("git checkout -- sample.rs", shell=True)
prepare_output_dir()
modify_sample_file()
generate_snapshots()
undo_sample_file_modification()