Source: fop Version: 1:2.8-2 Severity: normal Tags: patch X-Debbugs-Cc: reproducible-b...@lists.alioth.debian.org User: reproducible-bui...@lists.alioth.debian.org Usertags: timezones
Hi, even when keeping SOURCE_DATE_EPOCH equal, varying the timezone via the TZ environment variable produces different PDFs when using fop. Specifically, their /ID differs. Here is some reprotest output that shows the issue: https://salsa.debian.org/debian/xmlstarlet/-/jobs/5296216 To reproduce, you can run this in the xmlstarlet source: TZ=GMT-1 SOURCE_DATE_EPOCH=0 /usr/bin/fop -q doc/xmlstarlet-ug.fo doc/xmlstarlet-ug.pdf TZ=GMT+1 SOURCE_DATE_EPOCH=0 /usr/bin/fop -q doc/xmlstarlet-ug.fo doc/xmlstarlet-ug.pdf The reason is, that generateFileID() uses SimpleDateFormat().format() which is not timezone aware and will use the current timezone for the string it produces. My patch replaces that for DateFormatUtil.formatPDFDate() with UTC: https://salsa.debian.org/java-team/fop/-/merge_requests/2 Thanks! cheers, josch