Fixes#674
This PR supersedes #505, and instead of using js-wacz for optimized WACZ
creation:
- generates an 'in-place' or 'streaming' WACZ in the crawler, without
having to copy the data again.
- WACZ contents are streamed to remote upload (or to disk) from existing
files on disk
- CDXJ indices per-WARC are first written to 'warc-cdx' directory, then merged using the linux 'sort' command, and compressed to ZipNum if >50K (or always if using --generateCDX)
- All data in the WARCs is written and read only once
- Should result in significant speed / disk usage improvements:
previously WARC was written once, then read again (for CDXJ indexing),
read again (for adding to new WACZ ZIP), written to disk (into new WACZ
ZIP), read again (if upload to remote endpoint). Now, WARCs are written
once, along with the per-WARC CDXJ, the CDXJ only is reread, sorted and merged on-disk, and all
data is read once to either generate WACZ on disk or upload to remote.
---------
Co-authored-by: Tessa Walsh <tessa@bitarchivist.net>
Support for rollover size and custom WARC prefix templates:
- reenable --rolloverSize (default to 1GB) for when a new WARC is
created
- support custom WARC prefix via --warcPrefix, prepended to new WARC
filename, test via basic_crawl.test.js
- filename template for new files is:
`${prefix}-${crawlId}-$ts-${this.workerid}.warc${his.gzip ? ".gz" : ""}`
with `$ts` replaced at new file creation time with current timestamp
Improved support for long (non-terminating) responses, such as from
live-streaming:
- add a size to CDP takeStream to ensure data is streamed in fixed
chunks, defaulting to 64k
- change shutdown order: first close browser, then finish writing all
WARCs to ensure any truncated responses can be captured.
- ensure WARC is not rewritten after it is done, skip writing records if
stream already flushed
- add timeout to final fetch tasks to avoid never hanging on finish
- fix adding `WARC-Truncated` header, need to set after stream is
finished to determine if its been truncated
- move temp download `tmp-dl` dir to main temp folder, outside of
collection (no need to be there).
This adds prettier to the repo, and sets up the pre-commit hook to
auto-format as well as lint.
Also updates ignores files to exclude crawls, test-crawls, scratch, dist as needed.
* switch base image to chrome/chromium 105 with node 18.x
* convert all source to esm for node 18.x, remove unneeded node-fetch dependency
* ci: use node 18.x, update to latest actions
* tests: convert to esm, run with --experimental-vm-modules
* tests: set higher default timeout (90s) for all tests
* tests: rename driver test fixture to .mjs for loading in jest
* bump to 0.8.0
* fix typo in setting crawler.capturePrefix which caused directFetchCapture() to fail, causing non-HTML urls to fail.
- wrap directFetchCapture() to retry browser loading in case of failure
* custom link extraction improvements (improvements for #25)
- extractLinks() returns a list of link URLs to allow for more flexibility in custom driver
- rename queueUrls() to queueInScopeUrls() to indicate the filtering is performed
- loadPage accepts a list of select opts {selector, extract, isAttribute} and defaults to {"a[href]", "href", false}
- tests: add test for custom driver which uses custom selector
* tests
- tests: all tests uses 'test-crawls' instead of crawls
- consolidation: combine initial crawl + rollover, combine warc, text tests into basic_crawl.test.js
- add custom driver test and fixture to test custom link extraction
* add to CHANGES, bump to 0.4.2
