Add base32 encoder/decoder

nix-rust/Cargo.lock

@@ -10,6 +10,11 @@ name = "anyhow"
 version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "assert_matches"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "autocfg"
 version = "0.1.7"
@@ -43,6 +48,19 @@ dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "bit-set"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bit-vec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -68,6 +86,14 @@ dependencies = [
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "c2-chacha"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cc"
 version = "1.0.47"
@@ -348,6 +374,16 @@ dependencies = [
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "h2"
 version = "0.1.26"
@@ -381,6 +417,11 @@ dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "hex"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "http"
 version = "0.1.21"
@@ -624,9 +665,13 @@ dependencies = [
 name = "nix-rust"
 version = "0.1.0"
 dependencies = [
+ "assert_matches 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-preview 0.3.0-alpha.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proptest 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -641,6 +686,14 @@ dependencies = [
  "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.11.1"
@@ -689,6 +742,11 @@ name = "pin-utils"
 version = "0.1.0-alpha.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.6"
@@ -697,6 +755,25 @@ dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "proptest"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bit-set 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rusty-fork 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "publicsuffix"
 version = "1.5.4"
@@ -709,6 +786,11 @@ dependencies = [
  "url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "quick-error"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "quote"
 version = "1.0.2"
@@ -735,6 +817,18 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand_chacha"
 version = "0.1.1"
@@ -744,6 +838,15 @@ dependencies = [
  "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand_chacha"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.3.1"
@@ -757,6 +860,14 @@ name = "rand_core"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "rand_core"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand_hc"
 version = "0.1.0"
@@ -765,6 +876,14 @@ dependencies = [
  "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand_hc"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand_isaac"
 version = "0.1.1"
@@ -839,6 +958,14 @@ name = "regex-syntax"
 version = "0.6.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "remove_dir_all"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "reqwest"
 version = "0.9.22"
@@ -913,6 +1040,17 @@ dependencies = [
  "webpki 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rusty-fork"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wait-timeout 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.2"
@@ -1052,6 +1190,19 @@ dependencies = [
  "xattr 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "time"
 version = "0.1.42"
@@ -1288,6 +1439,14 @@ name = "version_check"
 version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "wait-timeout"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "want"
 version = "0.2.0"
@@ -1298,6 +1457,11 @@ dependencies = [
  "try-lock 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "wasi"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.55"
@@ -1456,14 +1620,18 @@ dependencies = [
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 "checksum anyhow 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "9267dff192e68f3399525901e709a48c1d3982c9c072fa32f2127a0cb0babf14"
+"checksum assert_matches 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7deb0a829ca7bcfaf5da70b073a8d128619259a7be8216a355e23f00763059e5"
 "checksum autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
 "checksum backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)" = "924c76597f0d9ca25d762c25a4d369d51267536465dc5064bdf0eb073ed477ea"
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+"checksum bit-set 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e84c238982c4b1e1ee668d136c510c67a13465279c0cb367ea6baf6310620a80"
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 "checksum bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
+"checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
 "checksum cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)" = "aa87058dce70a3ff5621797f1506cb837edd02ac4c0ae642b4542dce802908b8"
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
@@ -1497,9 +1665,11 @@ dependencies = [
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 "checksum futures-sink-preview 0.3.0-alpha.18 (registry+https://github.com/rust-lang/crates.io-index)" = "e9b65a2481863d1b78e094a07e9c0eed458cc7dc6e72b22b7138b8a67d924859"
 "checksum futures-util-preview 0.3.0-alpha.18 (registry+https://github.com/rust-lang/crates.io-index)" = "7df53daff1e98cc024bf2720f3ceb0414d96fbb0a94f3cad3a5c3bf3be1d261c"
+"checksum getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "e7db7ca94ed4cd01190ceee0d8a8052f08a247aa1b469a7f68c6a3b71afcf407"
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 "checksum hermit-abi 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "307c3c9f937f38e3534b1d6447ecf090cafcc9744e4a6360e8b037b2cf5af120"
+"checksum hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
 "checksum http 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)" = "d6ccf5ede3a895d8856620237b2f02972c1bbc78d2965ad7fe8838d4a0ed41f0"
 "checksum http-body 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6741c859c1b2463a423a1dbce98d418e6c3c3fc720fb0d45528657320920292d"
 "checksum httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
@@ -1527,20 +1697,28 @@ dependencies = [
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 "checksum rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b40677c7be09ae76218dc623efbf7b18e34bced3f38883af07bb75630a21bc4"
+"checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 "checksum rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ded997c9d5f13925be2a6fd7e66bf1872597f759fd9dd93513dd7e92e5a5ee08"
 "checksum rand_jitter 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "1166d5c91dc97b88d1decc3285bb0a99ed84b05cfd0bc2341bdf2d43fc41e39b"
 "checksum rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
@@ -1550,11 +1728,13 @@ dependencies = [
 "checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 "checksum regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc220bd33bdce8f093101afe22a037b8eb0e5af33592e6a9caafff0d4cb81cbd"
 "checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
+"checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
 "checksum reqwest 0.9.22 (registry+https://github.com/rust-lang/crates.io-index)" = "2c2064233e442ce85c77231ebd67d9eca395207dec2127fe0bbedde4bd29a650"
 "checksum ring 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)" = "6747f8da1f2b1fabbee1aaa4eb8a11abf9adef0bf58a41cee45db5d59cecdfac"
 "checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 "checksum rustls 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b25a18b1bf7387f0145e7f8324e700805aade3842dd3db2e74e4cdeb4677c09e"
+"checksum rusty-fork 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3dd93264e10c577503e926bd1430193eeb5d21b059148910082245309b424fae"
 "checksum ryu 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "bfa8506c1de11c9c4e4c38863ccbe02a305c8188e85a05a784c9e11e1c3910c8"
 "checksum scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b42e15e59b18a828bbf5c58ea01debb36b9b096346de35d941dcb89009f24a0d"
 "checksum sct 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e3042af939fca8c3453b7af0f1c66e533a15a86169e39de2657310ade8f98d3c"
@@ -1573,6 +1753,7 @@ dependencies = [
 "checksum syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)" = "dff0acdb207ae2fe6d5976617f887eb1e35a2ba52c13c7234c790960cdad9238"
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 "checksum tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)" = "b3196bfbffbba3e57481b6ea32249fbaf590396a52505a2615adbb79d9d826d3"
+"checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)" = "5a09c0b5bb588872ab2f09afa13ee6e9dac11e10a0ec9e8e3ba39a5a5d530af6"
 "checksum tokio-buf 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8fb220f46c53859a4b7ec083e41dec9778ff0b1851c0942b211edb89e0ccdc46"
@@ -1598,7 +1779,9 @@ dependencies = [
 "checksum uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "90dbc611eb48397705a6b0f6e917da23ae517e4d127123d2cf7674206627d32a"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
+"checksum wait-timeout 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9f200f5b12eb75f8c1ed65abd4b2db8a6e1b138a20de009dacee265a2498f3f6"
 "checksum want 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b6395efa4784b027708f7451087e647ec73cc74f5d9bc2e418404248d679a230"
+"checksum wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
 "checksum wasm-bindgen 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)" = "29ae32af33bacd663a9a28241abecf01f2be64e6a185c6139b04f18b6385c5f2"
 "checksum wasm-bindgen-backend 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)" = "1845584bd3593442dc0de6e6d9f84454a59a057722f36f005e44665d6ab19d85"
 "checksum wasm-bindgen-macro 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)" = "87fcc747e6b73c93d22c947a6334644d22cfec5abd8b66238484dc2b0aeb9fe4"

nix-rust/Cargo.toml

@@ -16,3 +16,9 @@ futures-preview = { version = "=0.3.0-alpha.18", features = ["compat"] }
 reqwest = { version = "0.9", default-features = false, features = ["rustls-tls"] }
 http = "0.1"
 tokio = { version = "0.1", default-features = false }
+lazy_static = "1.4"
+
+[dev-dependencies]
+hex = "0.3"
+assert_matches = "1.3"
+proptest = "0.9"

nix-rust/local.mk

@@ -36,3 +36,8 @@ clean: clean-rust
 
 clean-rust:
 	$(suppress) rm -rfv nix-rust/target
+
+check: rust-tests
+
+rust-tests:
+	cd nix-rust && CARGO_HOME=$$(if [[ -d vendor ]]; then echo vendor; fi) RUSTC_BOOTSTRAP=1 cargo test --release $$(if [[ -d vendor ]]; then echo -Z offline; fi)

nix-rust/src/error.rs

@@ -3,6 +3,7 @@ pub enum Error {
     InvalidPath(crate::store::StorePath),
     BadStorePath(std::path::PathBuf),
     BadNarInfo,
+    BadBase32,
     IOError(std::io::Error),
     HttpError(reqwest::Error),
     Misc(String),
@@ -29,6 +30,7 @@ impl From<Error> for CppException {
             Error::BadStorePath(path) => unsafe {
                 make_error(&format!("path '{}' is not a store path", path.display()))
             }, // FIXME
+            Error::BadBase32 => unsafe { make_error("invalid base32 string") }, // FIXME
             Error::IOError(err) => unsafe { make_error(&err.to_string()) },
             Error::HttpError(err) => unsafe { make_error(&err.to_string()) },
             Error::Foreign(ex) => ex,

nix-rust/src/lib.rs

@@ -1,5 +1,16 @@
 #![feature(await_macro, async_await)]
 
+#[macro_use]
+extern crate lazy_static;
+
+#[cfg(test)]
+#[macro_use]
+extern crate assert_matches;
+
+#[cfg(test)]
+#[macro_use]
+extern crate proptest;
+
 mod c;
 mod error;
 mod foreign;

nix-rust/src/store/store.rs

@@ -12,7 +12,7 @@ pub struct StorePath {
 pub const STORE_PATH_HASH_CHARS: usize = 32;
 
 impl StorePath {
-    pub fn new(path: &Path, store_dir: &str) -> Result<Self, Error> {
+    pub fn new(path: &Path, _store_dir: &str) -> Result<Self, Error> {
         // FIXME: check store_dir
         Self::new_short(
             path.file_name()

nix-rust/src/util/base32.rs

@@ -0,0 +1,140 @@
+use crate::error::Error;
+use std::collections::HashMap;
+
+pub fn encoded_len(input_len: usize) -> usize {
+    if input_len == 0 {
+        0
+    } else {
+        (input_len * 8 - 1) / 5 + 1
+    }
+}
+
+static BASE32_CHARS: &'static [u8; 32] = &b"0123456789abcdfghijklmnpqrsvwxyz";
+
+lazy_static! {
+    static ref BASE32_CHARS_REVERSE: HashMap<char, u8> = BASE32_CHARS
+        .iter()
+        .enumerate()
+        .map(|(n, c)| (*c as char, n as u8))
+        .collect();
+}
+
+pub fn encode(input: &[u8]) -> String {
+    let mut res = String::new();
+    res.reserve(encoded_len(input.len()));
+
+    let mut nr_bits_left: usize = 0;
+    let mut bits_left: u16 = 0;
+
+    for b in input {
+        bits_left |= (*b as u16) << nr_bits_left;
+        nr_bits_left += 8;
+        while nr_bits_left > 5 {
+            res.push(BASE32_CHARS[(bits_left & 0x1f) as usize] as char);
+            bits_left >>= 5;
+            nr_bits_left -= 5;
+        }
+    }
+
+    if nr_bits_left > 0 {
+        res.push(BASE32_CHARS[(bits_left & 0x1f) as usize] as char);
+    }
+
+    res.chars().rev().collect()
+}
+
+pub fn decode(input: &str) -> Result<Vec<u8>, crate::Error> {
+    let mut res = Vec::new();
+
+    let mut nr_bits_left: usize = 0;
+    let mut bits_left: u16 = 0;
+
+    for c in input.chars().rev() {
+        let x = BASE32_CHARS_REVERSE.get(&c).ok_or(Error::BadBase32)?;
+        bits_left |= (*x as u16) << nr_bits_left;
+        nr_bits_left += 5;
+        if nr_bits_left >= 8 {
+            res.push((bits_left & 0xff) as u8);
+            bits_left >>= 8;
+            nr_bits_left -= 8;
+        }
+    }
+
+    if nr_bits_left > 0 && bits_left != 0 {
+        return Err(Error::BadBase32);
+    }
+
+    Ok(res)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use hex;
+
+    #[test]
+    fn test_encode() {
+        assert_eq!(encode(&[]), "");
+
+        assert_eq!(
+            encode(&hex::decode("0839703786356bca59b0f4a32987eb2e6de43ae8").unwrap()),
+            "x0xf8v9fxf3jk8zln1cwlsrmhqvp0f88"
+        );
+
+        assert_eq!(
+            encode(
+                &hex::decode("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
+                    .unwrap()
+            ),
+            "1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s"
+        );
+
+        assert_eq!(
+            encode(
+                &hex::decode("ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f")
+                    .unwrap()
+            ),
+            "2gs8k559z4rlahfx0y688s49m2vvszylcikrfinm30ly9rak69236nkam5ydvly1ai7xac99vxfc4ii84hawjbk876blyk1jfhkbbyx"
+        );
+    }
+
+    #[test]
+    fn test_decode() {
+        assert_eq!(hex::encode(decode("").unwrap()), "");
+
+        assert_eq!(
+            hex::encode(decode("x0xf8v9fxf3jk8zln1cwlsrmhqvp0f88").unwrap()),
+            "0839703786356bca59b0f4a32987eb2e6de43ae8"
+        );
+
+        assert_eq!(
+            hex::encode(decode("1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s").unwrap()),
+            "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"
+        );
+
+        assert_eq!(
+            hex::encode(decode("2gs8k559z4rlahfx0y688s49m2vvszylcikrfinm30ly9rak69236nkam5ydvly1ai7xac99vxfc4ii84hawjbk876blyk1jfhkbbyx").unwrap()),
+            "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f"
+        );
+
+        assert_matches!(
+            decode("xoxf8v9fxf3jk8zln1cwlsrmhqvp0f88"),
+            Err(Error::BadBase32)
+        );
+        assert_matches!(
+            decode("2b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s"),
+            Err(Error::BadBase32)
+        );
+        assert_matches!(decode("2"), Err(Error::BadBase32));
+        assert_matches!(decode("2gs"), Err(Error::BadBase32));
+        assert_matches!(decode("2gs8"), Err(Error::BadBase32));
+    }
+
+    proptest! {
+
+        #[test]
+        fn roundtrip(s: Vec<u8>) {
+            assert_eq!(s, decode(&encode(&s)).unwrap());
+        }
+    }
+}

nix-rust/src/util/mod.rs

@@ -1 +1,2 @@
+pub mod base32;
 pub mod tarfile;

tests/local.mk

@@ -1,6 +1,3 @@
-check:
-	@echo "Warning: Nix has no 'make check'. Please install Nix and run 'make installcheck' instead."
-
 nix_tests = \
   init.sh hash.sh lang.sh add.sh simple.sh dependencies.sh \
   gc.sh \