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nx_hf_file_fetch.nx

buildroot/runtime/nx_hf_file_fetch.nx

7103 B135 linesdepth 21pulls 147 transitivereach 0 importersview sourcekind tooltopic hf
docsdependenciesstructsconstsfunctions

about

nx_hf_file_fetch.nx -- the STANDARD redirect-following, resumable, self-healing single-file HF downloader (the model-port driver's fetch stage that actually WORKS for HF LFS). nx_forge_model_fetch's Range fetch does NOT follow redirects, but HF `resolve/main/<file>` 302-redirects to the CDN -> it fails. This reuses the PROVEN nx_apertus_shards_pull mechanism (pull_attempt hop-loops connect+TLS+get_stream, following Location on 3xx; pull_resumable resumes from the on-disk size + self-heals) but is FILE-DRIVEN (url/dest/size from data/mp_fetch_{url,dest,size}.txt) so it fetches ANY single model file with no code edit and runs under nx_sov_build_run (no argv). license_tier: ORIGINAL expect_exit: 0

dependencies 5 imports · 0 importers

nx_syscalls.nx nx_csprng.nx nx_trust_store_load_from_certdata. nx_https_fetch_follow.nx nx_https_get_stream.nx nx_hf_file_fetch.nx

imports: nx_syscalls.nxnx_csprng.nxnx_trust_store_load_from_certdata.nxnx_https_fetch_follow.nxnx_https_get_stream.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

main w sys_write nx_trust_store_load_from_c sys_mmap sys_read_file sys_openat_rd sys_lseek sys_mmap ↻ sys_read sys_close nx_nss_certdata_parse sys_mmap ↻ _pat_class_cert _pat_value_octal _pat_end _find_newline _starts_with _parse_octal_line sys_mmap ↻ _is_space _decode_octal_escape _is_octal trust_store_alloc sys_mmap ↻ nx_x509_trust_store_load sys_mmap ↻ x509_parse sys_mmap ↻ asn1_cursor_init asn1_expect_tag sys_mmap ↻ asn1_read_tlv_header asn1_read_tag asn1_read_length asn1_read_length ↻ x509_read_tlv sys_mmap ↻ asn1_expect_tag ↻ x509_read_alg_id

structs

none

consts

13const K_MAGIC_4096: i64 = 4096
14const K_MAGIC_2048: i64 = 2048
15const K_MAGIC_4194304: i64 = 4194304

functions

17func w(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 }
called by 3: wnpull_resumablemain calls 1: sys_write
18func wn(v: i64) -> i64 { var m: i64=v; if m<0{w("-" as *u8);m=0-m} let t:*u8=sys_mmap(24); var k:i64=0; if m==0{t[0]=48 as u8;k=1} while m>0{t[k]=(48+(m%10)) as u8;m=m/10;k=k+1} var i:i64=0; let o:*u8=sys_mmap(24); while i<k{o[i]=t[k-1-i];i=i+1} sys_write(1,o,k); return 0 }
called by 2: pull_resumablemain calls 3: wsys_mmapsys_write
20func hff_readfile(path: *u8, buf: *u8, cap: i64) -> i64
called by 1: main calls 3: sys_openat_rdsys_readsys_close
39func hff_atoi(s: *u8) -> i64 { var v: i64=0; var i: i64=0; while s[i]!=(0 as u8){ let c: i64=s[i] as i64; if c>=48{ if c<=57{ v=v*10+(c-48) } } i=i+1 } return v }
called by 1: main
41func file_size(path: *u8) -> i64
called by 1: pull_resumable calls 3: sys_openat_rdsys_lseeksys_close
51func pull_attempt(url0: *u8, store: *TrustStore, dest_path: *u8, have: i64) -> i64
called by 1: pull_resumable calls 13: sys_mmapsys_openat_appendsys_openat_wrnx_url_newnx_https_url_for_fetchsys_close+7
96func pull_resumable(url0: *u8, store: *TrustStore, dest_path: *u8, target: i64) -> i64
called by 1: main calls 6: file_sizewwnpull_attemptsys_openat_wrsys_close
117func main() -> i64
calls 8: wnx_trust_store_load_from_certdatasys_exitsys_mmaphff_readfilehff_atoi+2