diff options
Diffstat (limited to 'src/extension/internal/cairo-render-context.cpp')
| -rw-r--r-- | src/extension/internal/cairo-render-context.cpp | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/extension/internal/cairo-render-context.cpp b/src/extension/internal/cairo-render-context.cpp index 1878b2c89..f42fe5214 100644 --- a/src/extension/internal/cairo-render-context.cpp +++ b/src/extension/internal/cairo-render-context.cpp @@ -26,7 +26,10 @@ #include <signal.h> +#include <limits.h> #include <errno.h> +#include <time.h> +#include <stdlib.h> #include <2geom/pathvector.h> #include <glib.h> @@ -796,6 +799,12 @@ CairoRenderContext::setupSurface(double width, double height) cairo_surface_t *surface = NULL; cairo_matrix_t ctm; cairo_matrix_init_identity (&ctm); + char buffer[25]; + char *endptr; + char *source_date_epoch; + time_t now; + struct tm *build_time; + unsigned long long epoch; switch (_target) { case CAIRO_SURFACE_TYPE_IMAGE: surface = cairo_image_surface_create(_target_format, (int)ceil(width), (int)ceil(height)); @@ -804,6 +813,40 @@ CairoRenderContext::setupSurface(double width, double height) case CAIRO_SURFACE_TYPE_PDF: surface = cairo_pdf_surface_create_for_stream(Inkscape::Extension::Internal::_write_callback, _stream, width, height); cairo_pdf_surface_restrict_to_version(surface, (cairo_pdf_version_t)_pdf_level); +#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 15, 4) + source_date_epoch = getenv("SOURCE_DATE_EPOCH"); + if (source_date_epoch) { + errno = 0; + epoch = strtoull(source_date_epoch, &endptr, 10); + if ((errno == ERANGE && (epoch == ULLONG_MAX || epoch == 0)) + || (errno != 0 && epoch == 0)) { + g_printerr ("Environment variable $SOURCE_DATE_EPOCH: strtoull: %s\n", + strerror(errno)); + exit (1); + } + if (endptr == source_date_epoch) { + g_printerr ("Environment variable $SOURCE_DATE_EPOCH: No digits were found: %s\n", + endptr); + exit (1); + } + if (*endptr != '\0') { + g_printerr ("Environment variable $SOURCE_DATE_EPOCH: Trailing garbage: %s\n", + endptr); + exit (1); + } + if (epoch > ULONG_MAX) { + g_printerr ("Environment variable $SOURCE_DATE_EPOCH: must be <= %lu but saw: %llu\n", + ULONG_MAX, epoch); + exit (1); + } + now = (time_t)epoch; + build_time = gmtime(&now); + strftime(buffer, 25, "%Y-%m-%dT%H:%M:%S%z", build_time); + cairo_pdf_surface_set_metadata (surface, + CAIRO_PDF_METADATA_CREATE_DATE, + buffer); +#endif + } break; #endif #ifdef CAIRO_HAS_PS_SURFACE |