947bbe9470
- store gm settings in the cache as a dict - generalize usage of the gm settings to resize - can be used to resize fullsize versions of the pictures - without -quality switch, gm defaults to -quality 75. use -define jpeg:preserve-settings for fullsize versions to avoid altering them - do not store "name" in the cache, because when the same image is used in a gallery and as the cover, it invalidates the cache entry and becomes always generated
173 lines
7.3 KiB
Python
173 lines
7.3 KiB
Python
#!/usr/bin/env python
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import os
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import sys
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import yaml
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import shutil
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from jinja2 import Environment, FileSystemLoader
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from .cache import CACHE
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from .utils import error
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templates = Environment(loader=FileSystemLoader([os.path.realpath(os.path.join(os.getcwd(), "templates")), os.path.join(os.path.split(os.path.realpath(__file__))[0], "templates")]))
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index_template = templates.get_template("index.html")
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gallery_index_template = templates.get_template("gallery-index.html")
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page_template = templates.get_template("page.html")
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SETTINGS = {
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"show_date": True,
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"gm": {
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"quality": 75,
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"auto-orient": True,
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"strip": True,
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"resize": None
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}
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}
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class Image(object):
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base_dir = ""
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target_dir = ""
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def __init__(self, options):
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# assuming string
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if not isinstance(options, dict):
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options = {"name": options}
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self.options = SETTINGS["gm"].copy() # used for caching, if it's modified -> regenerate
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self.options.update(options)
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@property
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def name(self):
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return self.options["name"]
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@property
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def quality(self):
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return self.options["quality"]
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@property
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def autoorient(self):
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return self.options["auto-orient"]
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def gm(self, source, target, options):
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if CACHE.needs_to_be_generated(source, target, options):
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gm_switches = {
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"source": source,
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"target": target,
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"auto-orient" : "-auto-orient" if options["auto-orient"] else "",
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"strip": "-strip" if options["strip"] else "",
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"quality": "-quality %s" % options["quality"] if options.has_key("quality") else "-define jpeg:preserve-settings",
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"resize": "-resize %s" % options["resize"] if options.has_key("resize") else ""
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}
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command = "gm convert {source} {auto-orient} {strip} {quality} {resize} {target}".format(**gm_switches)
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print command
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os.system(command)
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CACHE.cache_picture(source, target, options)
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else:
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print "skipped %s since it's already generated (based on source unchanged size and images options set in your gallery's settings.yaml)" % target
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def copy(self):
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source, target = os.path.join(self.base_dir, self.name), os.path.join(self.target_dir, self.name)
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# XXX doing this DOESN'T improve perf at all (or something like 0.1%)
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# if os.path.exists(target) and os.path.getsize(source) == os.path.getsize(target):
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# print "Skipped %s since the file hasn't been modified based on file size" % source
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# return ""
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options = self.options.copy()
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if not options["auto-orient"] and not options["strip"]:
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shutil.copyfile(source, target)
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print source, "->", target
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else:
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# Do not consider quality settings here, since we aim to copy the input image
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# better to preserve input encoding setting
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del options["quality"]
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self.gm(source, target, options)
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return ""
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def generate_thumbnail(self, gm_geometry):
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thumbnail_name = self.name.split(".")
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thumbnail_name[-2] += "-%s" % gm_geometry
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thumbnail_name = ".".join(thumbnail_name)
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source, target = os.path.join(self.base_dir, self.name), os.path.join(self.target_dir, thumbnail_name)
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options = self.options.copy()
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options.update({"resize": gm_geometry})
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self.gm(source, target, options)
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return thumbnail_name
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def __repr__(self):
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return self.name
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def main():
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if os.system("which gm > /dev/null") != 0:
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sys.stderr.write("ERROR: I can't locate the 'gm' binary, I won't be able to resize images, please install the 'graphicsmagick' package.\n")
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sys.exit(1)
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error(os.path.exists(os.path.join(os.getcwd(), "settings.yaml")), "I can't find a settings.yaml in the current working directory")
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settings = yaml.safe_load(open("settings.yaml", "r"))
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error(isinstance(settings, dict), "Your settings.yaml should be a dict")
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error(settings.get("title"), "You should specify a title in your main settings.yaml")
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if settings.get("settings", {}).get("gm"):
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SETTINGS["gm"].update(settings["settings"]["gm"])
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front_page_galleries_cover = []
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dirs = filter(lambda x: x not in (".", "..") and os.path.isdir(x) and os.path.exists(os.path.join(os.getcwd(), x, "settings.yaml")), os.listdir(os.getcwd()))
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error(dirs, "I can't find at least one directory with a settings.yaml in the current working directory (NOT the settings.yaml in your current directory, but one INSIDE A DIRECTORY in your current working directory), you don't have any gallery?")
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if not os.path.exists("build"):
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os.makedirs("build")
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# XXX recursively merge directories
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if os.path.exists(os.path.join(os.getcwd(), "build", "static")):
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shutil.rmtree(os.path.join(os.getcwd(), "build", "static"))
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shutil.copytree(os.path.join(os.path.split(os.path.realpath(__file__))[0], "static"), os.path.join(os.getcwd(), "build", "static"))
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for gallery in dirs:
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gallery_settings = yaml.safe_load(open(os.path.join(os.getcwd(), gallery, "settings.yaml"), "r"))
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error(isinstance(gallery_settings, dict), "Your %s should be a dict" % (os.path.join(gallery, "settings.yaml")))
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error(gallery_settings.get("title"), "You should specify a title in %s" % (os.path.join(gallery, "settings.yaml")))
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if gallery_settings.get("public", True):
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error(gallery_settings.get("title"), "Your galery describe in %s need to have a title" % (os.path.join(gallery, "settings.yaml")))
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error(gallery_settings.get("cover"), "You should specify a path to a cover picture in %s" % (os.path.join(gallery, "settings.yaml")))
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cover_image_path = os.path.join(gallery, gallery_settings["cover"])
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error(os.path.exists(cover_image_path), "File for %s cover image doesn't exist at %s" % (gallery, cover_image_path))
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front_page_galleries_cover.append({
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"title": gallery_settings["title"],
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"link": gallery,
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"sub_title": gallery_settings.get("sub_title", ""),
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"date": gallery_settings.get("date", ""),
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"tags": gallery_settings.get("tags", ""),
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"cover": cover_image_path,
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})
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if not os.path.exists(os.path.join("build", gallery)):
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os.makedirs(os.path.join("build", gallery))
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# this should probably be a factory
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Image.base_dir = os.path.join(os.getcwd(), gallery)
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Image.target_dir = os.path.join(os.getcwd(), "build", gallery)
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template_to_render = page_template if gallery_settings.get("static") else gallery_index_template
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open(os.path.join("build", gallery, "index.html"), "w").write(template_to_render.render(settings=settings, gallery=gallery_settings, Image=Image).encode("Utf-8"))
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front_page_galleries_cover = reversed(sorted(front_page_galleries_cover, key=lambda x: x["date"]))
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# this should probably be a factory
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Image.base_dir = os.getcwd()
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Image.target_dir = os.path.join(os.getcwd(), "build")
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open(os.path.join("build", "index.html"), "w").write(index_template.render(settings=settings, galleries=front_page_galleries_cover, Image=Image).encode("Utf-8"))
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if __name__ == '__main__':
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main()
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