Do not compile _BCF_QUAD by default

[samtools.git] / bcftools / vcf.c

diff --git a/bcftools/vcf.c b/bcftools/vcf.c
index 07e25315f7e69a529dcd4bcd4f89e3f47696dd60..81c7061c9cbc4462ade1d36825100b5b760c5975 100644 (file)
--- a/bcftools/vcf.c
+++ b/bcftools/vcf.c
@@ -93,9 +93,22 @@ int vcf_close(bcf_t *bp)
 int vcf_hdr_write(bcf_t *bp, const bcf_hdr_t *h)
 {
        vcf_t *v = (vcf_t*)bp->v;
-       int i;
+       int i, has_ref = 0, has_ver = 0;
        if (!bp->is_vcf) return bcf_hdr_write(bp, h);
-       if (h->l_txt > 0) fwrite(h->txt, 1, h->l_txt - 1, v->fpout);
+       if (h->l_txt > 0) {
+               if (strstr(h->txt, "##fileformat=")) has_ver = 1;
+               if (has_ver == 0) fprintf(v->fpout, "##fileformat=VCFv4.0\n");
+               fwrite(h->txt, 1, h->l_txt - 1, v->fpout);
+               if (strstr(h->txt, "##SQ=")) has_ref = 1;
+       }
+       if (has_ver == 0) fprintf(v->fpout, "##fileformat=VCFv4.0\n");
+       if (!has_ref) {
+               fprintf(v->fpout, "##SQ=");
+               for (i = 0; i < h->n_ref; ++i) {
+                       fprintf(v->fpout, "%s", h->ns[i]);
+                       fputc(i == h->n_ref - 1? '\n' : ',', v->fpout);
+               }
+       }
        fprintf(v->fpout, "#CHROM\tPOS\tID\tREF\tALT\tQUAL\tFILTER\tINFO\tFORMAT");
        for (i = 0; i < h->n_smpl; ++i)
                fprintf(v->fpout, "\t%s", h->sns[i]);