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gnu: ghostscript: Improve reproducibility of PDF document generation 

* gnu/packages/patches/ghostscript-no-header-creationdate.patch: Disable
  writing "xmp:ModifyDate" and "xmp:CreateDate" if GS_GENERATE_UUIDS is set to
  "0" or "no".
master
Guillaume Le Vaillant 2021-07-19 11:48:12 +02:00
parent 532b2d9a38
commit db5962c680
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GPG Key ID: 6BE8208ADF21FE3F
1 changed files with 22 additions and 0 deletions
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22
gnu/packages/patches/ghostscript-no-header-creationdate.patch
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@ -20,3 +20,25 @@ index 0fb067e..b342e2c 100644
{ {
struct tm tms; struct tm tms;
time_t t; time_t t;
--- orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c
+++ gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c
@@ -692,6 +692,9 @@
pdf_xml_attribute_name(s, "xmlns:xmp");
pdf_xml_attribute_value(s, "http://ns.adobe.com/xap/1.0/");
pdf_xml_tag_end(s);
+ if (!getenv("GS_GENERATE_UUIDS") ||
+ (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") != 0 &&
+ strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") != 0))
{
pdf_xml_tag_open_beg(s, "xmp:ModifyDate");
pdf_xml_tag_end(s);
@@ -700,6 +701,9 @@
pdf_xml_tag_close(s, "xmp:ModifyDate");
pdf_xml_newline(s);
}
+ if (!getenv("GS_GENERATE_UUIDS") ||
+ (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") != 0 &&
+ strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") != 0))
{
pdf_xml_tag_open_beg(s, "xmp:CreateDate");
pdf_xml_tag_end(s);