Pyblish By Example
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Writing a report and archiving it is all well and good, but what would be really amazing is if we could visualise history with plots and charts. So let's do that now.
image
For this example, I'll be using pygal so go ahead and install this if you would like to follow along. Reusing
ArchiveValidators from the previous example, let's make some history.1
import os
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import random
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import datetime
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import pyblish.api
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class FlipCoin(pyblish.api.ContextPlugin):
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def process(self, context):
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if random.random() > 0.5:
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raise Exception("Failed")
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class ArchiveValidation(pyblish.api.ContextPlugin):
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...
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pyblishOpi.register_plugin(FlipCoin)
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pyblish.api.register_plugin(ArchiveValidation)
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import pyblish.util
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pyblish.util.publish()
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Run this at least 10 times so we have enough reports to work with. Next we will retrieve the last 10 publishes and draw a graph representing which time was successful and which was not.
Here is the graph-drawing source code.
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import os
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import pygal
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input_path = os.path.join(os.path.expanduser("~"), "logs")
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output_path = os.path.join(input_path, "graph.svg")
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results = list()
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for fname in os.listdir(input_path)[-10:]:
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abspath = os.path.join(input_path, fname)
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with open(abspath) as f:
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lines = f.readlines()[2:] # Top two are headers
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results.append([fname, any(line.startswith("0") for line in lines)])
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chart = pygal.StackedLine(fill=True,
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interpolate='cubic',
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style=pygal.style.LightSolarizedStyle)
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chart.title = 'Successful publishes over time'
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chart.x_labels = [str(results.index(r)) for r in results]
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chart.add("Publish", [r[1] for r in results])
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chart.render_to_file(output_path)
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Putting it all together, here is the final source code.
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import os
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import random
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import datetime
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import pygal
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import pyblish.api
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class FlipCoin(pyblish.api.ContextPlugin):
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def process(self, context):
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if random.random() > 0.5:
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raise Exception("Failed")
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class ArchiveValidation(pyblish.api.ContextPlugin):
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# Run after all validators have finished
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order = pyblish.api.ValidatorOrder + 0.1
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def process(self, context):
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formatted_results = self.format_results(context)
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# Compute output directory
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date = datetime.datetime.today().strftime("%Y%m%d-%H%M%S")
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output_dir = os.path.join(os.path.expanduser("~"), "logs")
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output_path = os.path.join(output_dir, date + ".txt")
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# Write to disk
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if not os.path.exists(output_dir):
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os.makedirs(output_dir)
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with open(output_path, "w") as f:
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# E.g. c:\users\marcus\Documents\logs\20150612-110000.txt
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f.write(formatted_results)
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# Print rather than log, as this plug-in
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# won't be included in the results.
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print("Outputted to: %s" % output_dir)
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context.data["archiveDir"] = output_dir
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def format_results(self, context):
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header = "{:<10}{:<40} -> {}".format("Success", "Plug-in", "Instance")
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result = "{success:<10}{plugin.__name__:<40} -> {instance}"
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error = "{:<10}+-- EXCEPTION: {:<70}"
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record = "{:<10}+-- {level}: {message:<70}"
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results = list()
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for r in context.data["results"]:
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# Format summary
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results.append(result.format(**r))
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# Format log records
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for lr in r["records"]:
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results.append(record.format("", level=lr.levelname, message=lr.message))
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# Format exception (if any)
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if r["error"]:
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results.append(error.format("", r["error"]))
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report = """
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{header}
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{line}
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{results}
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"""
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return report.format(
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header=header,
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results="\n".join(results),
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line="-" * 70)
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class PlotArchive(pyblish.api.ContextPlugin):
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# Run after archival
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order = pyblish.api.ValidatorOrder + 0.2
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def process(self, context):
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input_path = context.data["archiveDir"]
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output_path = os.path.join(input_path, "graph.svg")
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results = list()
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for fname in os.listdir(input_path)[-10:]:
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abspath = os.path.join(input_path, fname)
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with open(abspath) as f:
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lines = f.readlines()[2:] # Top two are headers
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results.append([fname, any(line.startswith("0") for line in lines)])
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chart = pygal.StackedLine(fill=True,
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interpolate='cubic',
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style=pygal.style.LightSolarizedStyle)
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chart.title = 'Successful publishes over time'
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chart.x_labels = [str(results.index(r)) for r in results]
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chart.add("Publish", [r[1] for r in results])
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chart.render_to_file(output_path)
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pyblish.api.register_plugin(FlipCoin)
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pyblish.api.register_plugin(ArchiveValidation)
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pyblish.api.register_plugin(PlotArchive)
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import pyblish.util
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pyblish.util.publish()
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# Outputted to: C:\Users\marcus\logs
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Now, for every publish, results are archived and the graph updated. Go ahead, publish a few times and keep on refreshing your browser whilst looking at the graph. Animation is an exercise left to the reader.
Last modified 2yr ago
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