MVP autosave command

4 files changed, 481 insertions, 94 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 546f8a8..3e52ce9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,35 +3,27 @@
 version = 4
 
 [[package]]
-name = "aho-corasick"
-version = "1.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddd31a130427c27518df266943a5308ed92d4b226cc639f5a8f1002816174301"
-dependencies = [
- "memchr",
-]
-
-[[package]]
 name = "anyhow"
 version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
 
 [[package]]
-name = "bitflags"
-version = "2.11.0"
+name = "auth-git2"
+version = "0.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "843867be96c8daad0d758b57df9392b6d8d271134fce549de6ce169ff98a92af"
+checksum = "4888bf91cce63baf1670512d0f12b5d636179a4abbad6504812ac8ab124b3efe"
+dependencies = [
+ "dirs",
+ "git2",
+ "terminal-prompt",
+]
 
 [[package]]
-name = "bstr"
-version = "1.12.1"
+name = "bitflags"
+version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
-dependencies = [
- "memchr",
- "serde",
-]
+checksum = "843867be96c8daad0d758b57df9392b6d8d271134fce549de6ce169ff98a92af"
 
 [[package]]
 name = "bumpalo"
@@ -71,29 +63,83 @@ dependencies = [
 ]
 
 [[package]]
-name = "crossbeam-deque"
-version = "0.8.6"
+name = "convert_case"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "633458d4ef8c78b72454de2d54fd6ab2e60f9e02be22f3c6104cdc8a4e0fceb9"
+dependencies = [
+ "unicode-segmentation",
+]
+
+[[package]]
+name = "crossterm"
+version = "0.29.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8b9f2e4c67f833b660cdb0a3523065869fb35570177239812ed4c905aeff87b"
+dependencies = [
+ "bitflags",
+ "crossterm_winapi",
+ "derive_more",
+ "document-features",
+ "mio",
+ "parking_lot",
+ "rustix",
+ "signal-hook",
+ "signal-hook-mio",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acdd7c62a3665c7f6830a51635d9ac9b23ed385797f70a83bb8bafe9c572ab2b"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "derive_more"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d751e9e49156b02b44f9c1815bcb94b984cdcc4396ecc32521c739452808b134"
+dependencies = [
+ "derive_more-impl",
+]
+
+[[package]]
+name = "derive_more-impl"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dd111b7b7f7d55b72c0a6ae361660ee5853c9af73f70c3c2ef6858b950e2e51"
+checksum = "799a97264921d8623a957f6c3b9011f3b5492f557bbb7a5a19b7fa6d06ba8dcb"
 dependencies = [
- "crossbeam-epoch",
- "crossbeam-utils",
+ "convert_case",
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "syn",
 ]
 
 [[package]]
-name = "crossbeam-epoch"
-version = "0.9.18"
+name = "dirs"
+version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
+checksum = "c3e8aa94d75141228480295a7d0e7feb620b1a5ad9f12bc40be62411e38cce4e"
 dependencies = [
- "crossbeam-utils",
+ "dirs-sys",
 ]
 
 [[package]]
-name = "crossbeam-utils"
-version = "0.8.21"
+name = "dirs-sys"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"
+checksum = "e01a3366d27ee9890022452ee61b2b63a67e6f13f58900b651ff5665f0bb1fab"
+dependencies = [
+ "libc",
+ "option-ext",
+ "redox_users",
+ "windows-sys 0.61.2",
+]
 
 [[package]]
 name = "displaydoc"
@@ -107,12 +153,37 @@ dependencies = [
 ]
 
 [[package]]
+name = "document-features"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4b8a88685455ed29a21542a33abd9cb6510b6b129abadabdcef0f4c55bc8f61"
+dependencies = [
+ "litrs",
+]
+
+[[package]]
+name = "dyn-clone"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0881ea181b1df73ff77ffaaf9c7544ecc11e82fba9b5f27b262a3c73a332555"
+
+[[package]]
 name = "equivalent"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
 [[package]]
+name = "errno"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
+dependencies = [
+ "libc",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
 name = "etcetera"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -145,6 +216,26 @@ dependencies = [
 ]
 
 [[package]]
+name = "fuzzy-matcher"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54614a3312934d066701a80f20f15fa3b56d67ac7722b39eea5b4c9dd1d66c94"
+dependencies = [
+ "thread_local",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
 name = "getrandom"
 version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -174,10 +265,13 @@ name = "git-autosave"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "auth-git2",
  "confy",
  "git2",
- "ignore",
+ "hostname",
+ "inquire",
  "serde",
+ "thiserror",
  "uuid",
 ]
 
@@ -197,19 +291,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "globset"
-version = "0.4.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52dfc19153a48bde0cbd630453615c8151bce3a5adfac7a0aebfbf0a1e1f57e3"
-dependencies = [
- "aho-corasick",
- "bstr",
- "log",
- "regex-automata",
- "regex-syntax",
-]
-
-[[package]]
 name = "hashbrown"
 version = "0.15.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -240,6 +321,17 @@ dependencies = [
 ]
 
 [[package]]
+name = "hostname"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "617aaa3557aef3810a6369d0a99fac8a080891b68bd9f9812a1eeda0c0730cbd"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "windows-link",
+]
+
+[[package]]
 name = "icu_collections"
 version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -348,22 +440,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "ignore"
-version = "0.4.25"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3d782a365a015e0f5c04902246139249abf769125006fbe7649e2ee88169b4a"
-dependencies = [
- "crossbeam-deque",
- "globset",
- "log",
- "memchr",
- "regex-automata",
- "same-file",
- "walkdir",
- "winapi-util",
-]
-
-[[package]]
 name = "indexmap"
 version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -376,6 +452,20 @@ dependencies = [
 ]
 
 [[package]]
+name = "inquire"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6654738b8024300cf062d04a1c13c10c8e2cea598ec1c47dc9b6641159429756"
+dependencies = [
+ "bitflags",
+ "crossterm",
+ "dyn-clone",
+ "fuzzy-matcher",
+ "unicode-segmentation",
+ "unicode-width",
+]
+
+[[package]]
 name = "itoa"
 version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -434,6 +524,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "libredox"
+version = "0.1.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ddbf48fd451246b1f8c2610bd3b4ac0cc6e149d89832867093ab69a17194f08"
+dependencies = [
+ "libc",
+]
+
+[[package]]
 name = "libssh2-sys"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -460,12 +559,33 @@ dependencies = [
 ]
 
 [[package]]
+name = "linux-raw-sys"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a66949e030da00e8c7d4434b251670a91556f4144941d37452769c25d58a53"
+
+[[package]]
 name = "litemap"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6373607a59f0be73a39b6fe456b8192fcc3585f602af20751600e974dd455e77"
 
 [[package]]
+name = "litrs"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11d3d7f243d5c5a8b9bb5d6dd2b1602c0cb0b9db1621bafc7ed66e35ff9fe092"
+
+[[package]]
+name = "lock_api"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "224399e74b87b5f3557511d98dff8b14089b3dadafcab6bb93eab67d3aace965"
+dependencies = [
+ "scopeguard",
+]
+
+[[package]]
 name = "log"
 version = "0.4.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -478,6 +598,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
 
 [[package]]
+name = "mio"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50b7e5b27aa02a74bac8c3f23f448f8d87ff11f92d3aac1a6ed369ee08cc56c1"
+dependencies = [
+ "libc",
+ "log",
+ "wasi",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
 name = "once_cell"
 version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -502,6 +634,35 @@ dependencies = [
 ]
 
 [[package]]
+name = "option-ext"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
+
+[[package]]
+name = "parking_lot"
+version = "0.12.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93857453250e3077bd71ff98b6a65ea6621a19bb0f559a85248955ac12c45a1a"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2621685985a2ebf1c516881c026032ac7deafcda1a2c9b7850dc81e3dfcb64c1"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-link",
+]
+
+[[package]]
 name = "percent-encoding"
 version = "2.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -563,21 +724,46 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
 [[package]]
-name = "regex-automata"
-version = "0.4.14"
+name = "redox_syscall"
+version = "0.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e1dd4122fc1595e8162618945476892eefca7b88c52820e74af6262213cae8f"
+checksum = "ed2bf2547551a7053d6fdfafda3f938979645c44812fbfcda098faae3f1a362d"
 dependencies = [
- "aho-corasick",
- "memchr",
- "regex-syntax",
+ "bitflags",
+]
+
+[[package]]
+name = "redox_users"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4e608c6638b9c18977b00b475ac1f28d14e84b27d8d42f70e0bf1e3dec127ac"
+dependencies = [
+ "getrandom 0.2.17",
+ "libredox",
+ "thiserror",
+]
+
+[[package]]
+name = "rustc_version"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+dependencies = [
+ "semver",
 ]
 
 [[package]]
-name = "regex-syntax"
-version = "0.8.10"
+name = "rustix"
+version = "1.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc897dd8d9e8bd1ed8cdad82b5966c3e0ecae09fb1907d58efaa013543185d0a"
+checksum = "b6fe4565b9518b83ef4f91bb47ce29620ca828bd32cb7e408f0062e9930ba190"
+dependencies = [
+ "bitflags",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.61.2",
+]
 
 [[package]]
 name = "rustversion"
@@ -586,13 +772,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
 [[package]]
-name = "same-file"
-version = "1.0.6"
+name = "scopeguard"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
-dependencies = [
- "winapi-util",
-]
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "semver"
@@ -659,6 +842,37 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
 [[package]]
+name = "signal-hook"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d881a16cf4426aa584979d30bd82cb33429027e42122b169753d6ef1085ed6e2"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-mio"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b75a19a7a740b25bc7944bdee6172368f988763b744e3d4dfe753f6b4ece40cc"
+dependencies = [
+ "libc",
+ "mio",
+ "signal-hook",
+]
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4db69cba1110affc0e9f7bcd48bbf87b3f4fc7c61fc9155afd4c469eb3d6c1b"
+dependencies = [
+ "errno",
+ "libc",
+]
+
+[[package]]
 name = "smallvec"
 version = "1.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -693,6 +907,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "terminal-prompt"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "572818b3472910acbd5dff46a3413715c18e934b071ab2ba464a7b2c2af16376"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
+[[package]]
 name = "thiserror"
 version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -713,6 +937,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "thread_local"
+version = "1.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f60246a4944f24f6e018aa17cdeffb7818b76356965d03b07d6a9886e8962185"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
 name = "tinystr"
 version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -768,6 +1001,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
 
 [[package]]
+name = "unicode-segmentation"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9629274872b2bfaf8d66f5f15725007f635594914870f65218920345aa11aa8c"
+
+[[package]]
+name = "unicode-width"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"
+
+[[package]]
 name = "unicode-xid"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -809,14 +1054,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
-name = "walkdir"
-version = "2.5.0"
+name = "wasi"
+version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
-dependencies = [
- "same-file",
- "winapi-util",
-]
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
 [[package]]
 name = "wasip2"
@@ -916,15 +1157,28 @@ dependencies = [
 ]
 
 [[package]]
-name = "winapi-util"
-version = "0.1.11"
+name = "winapi"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
 dependencies = [
- "windows-sys 0.61.2",
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
 ]
 
 [[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
 name = "windows-link"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/Cargo.toml b/Cargo.toml
index 8b9ab09..d488b50 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,9 @@ edition = "2024"
 git2 = "0.20"
 serde = { version = "1.0.152", features = ["derive"] }
 uuid = { version = "1", features = ["v4"] }
+thiserror = "2"
 anyhow = "1"
 confy = "2"
-ignore = "0.4"
+hostname = "0.4"
+inquire = "0.9"
+auth-git2 = "0.5"
diff --git a/rustfmt.toml b/rustfmt.toml
index 3a79d0e..d3d0d1e 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,2 +1,3 @@
+edition = "2024"
 hard_tabs = true
 newline_style = "Unix"
diff --git a/src/lib.rs b/src/lib.rs
index f359745..1126b55 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -39,11 +39,13 @@
  * - allow force
  */
 
-use std::path::PathBuf;
+use std::fs::Metadata;
+use std::path::{Path, PathBuf};
 
 use confy::ConfyError;
-use git2::{Error, Repository};
+use git2::{Oid, PushOptions, RemoteCallbacks, Repository};
 use serde::{Deserialize, Serialize};
+use thiserror::Error;
 use uuid::Uuid;
 
 #[derive(Default, Serialize, Deserialize)]
@@ -51,6 +53,14 @@ pub struct Config {
 	repositories: Vec<PathBuf>,
 }
 
+#[derive(Debug, Error)]
+pub enum TreeError {
+	#[error(transparent)]
+	Io(#[from] std::io::Error),
+	#[error(transparent)]
+	Git(#[from] git2::Error),
+}
+
 pub fn load_config() -> Result<Config, ConfyError> {
 	confy::load("git-autosave", "git-autosaved")
 }
@@ -59,14 +69,133 @@ pub fn save_config(config: &Config) -> Result<(), ConfyError> {
 	confy::store("git-autosave", "git-autosaved", config)
 }
 
-pub fn init(repository: &Repository, config: Option<&mut Config>) -> Result<(), Error> {
+pub fn init(repository: &Repository, config: Option<&mut Config>) -> Result<(), git2::Error> {
 	let id = Uuid::new_v4();
 	let workdir = repository.workdir();
-	repository.config()?.set_str("autosave.id", &id.to_string())?;
+	repository
+		.config()?
+		.set_str("autosave.id", &id.to_string())?;
 
-	if let Some(config) = config && let Some(workdir) = workdir {
+	if let Some(config) = config
+		&& let Some(workdir) = workdir
+	{
 		config.repositories.push(workdir.into());
 	}
-	
+
+	Ok(())
+}
+
+pub fn current_branch_ref(repository: &Repository) -> Result<String, git2::Error> {
+	let head = repository.head()?;
+	let ref_name = match head.kind() {
+		Some(git2::ReferenceType::Symbolic) => head.symbolic_target(),
+		_ => head.name(),
+	}
+	.ok_or(git2::Error::new(
+		git2::ErrorCode::Invalid,
+		git2::ErrorClass::Reference,
+		"The current branch's name is not valid UTF-8",
+	))?
+	.to_string();
+	Ok(ref_name)
+}
+
+pub fn current_branch(repository: &Repository) -> Result<String, git2::Error> {
+	let ref_name = current_branch_ref(repository)?;
+	let branch_name = ref_name
+		.strip_prefix("refs/heads/")
+		.unwrap_or(&ref_name)
+		.to_string();
+	Ok(branch_name)
+}
+
+pub fn filemode_for_dir_entry(metadata: &Metadata) -> i32 {
+	if metadata.is_dir() {
+		0o040000
+	} else if metadata.is_symlink() {
+		0o120000
+	} else if metadata.permissions().readonly() {
+		0o100644
+	} else {
+		0o100755
+	}
+}
+
+pub fn path_to_tree(repository: &Repository, path: &Path) -> Result<Oid, TreeError> {
+	let workdir = repository.workdir().expect("a non-bare repo");
+	if path.is_dir() {
+		let mut tree = repository.treebuilder(None)?;
+		for entry in path.read_dir()? {
+			let entry = entry?;
+			let full_path = entry.path();
+			let relative_path = full_path.strip_prefix(workdir).unwrap_or(path);
+			if repository.is_path_ignored(relative_path)? {
+				continue;
+			}
+
+			let filemode = filemode_for_dir_entry(&entry.metadata()?);
+			let oid = path_to_tree(repository, &entry.path())?;
+			let filename = entry.file_name();
+			tree.insert(filename, oid, filemode)?;
+		}
+		Ok(tree.write()?)
+	} else {
+		Ok(repository.blob_path(path)?)
+	}
+}
+
+pub fn workdir_to_tree(repository: &Repository) -> Result<Oid, TreeError> {
+	let Some(workdir) = repository.workdir() else {
+		return Err(TreeError::Git(git2::Error::new(
+			git2::ErrorCode::BareRepo,
+			git2::ErrorClass::Repository,
+			"git-autosave only supports worktrees",
+		)));
+	};
+
+	path_to_tree(repository, workdir)
+}
+
+pub fn commit_autosave(repository: &Repository) -> Result<Oid, TreeError> {
+	let config = repository.config()?;
+	let head = repository.head()?;
+	let uid = config.get_entry("autosave.id")?;
+	let uid = String::from_utf8_lossy(uid.value_bytes());
+	let branch = current_branch(repository)?;
+	let refname = &format!("refs/autosave/autosaves/{uid}/{branch}");
+	let signature = repository.signature()?;
+	let tree = repository.find_tree(workdir_to_tree(repository)?)?;
+	let parent = head.peel_to_commit()?;
+	let hostname = hostname::get();
+	let hostname = hostname
+		.map(|hostname| hostname.to_string_lossy().into_owned())
+		.map(|hostname| format!("Autosave: {hostname}"))
+		.unwrap_or_else(|_| "Autosave".to_string());
+
+	let commit = repository.commit(None, &signature, &signature, &hostname, &tree, &[&parent])?;
+	repository.reference(refname, commit, true, "Autosaved {branch}")?;
+
+	Ok(commit)
+}
+
+pub fn push_autosaves(
+	repository: &Repository,
+	callbacks: RemoteCallbacks<'_>,
+) -> Result<(), git2::Error> {
+	let remote = repository.branch_upstream_remote(&current_branch_ref(repository)?)?;
+	let mut remote = repository.find_remote(&String::from_utf8_lossy(&remote))?;
+	let refs = repository
+		.references()?
+		.filter_map(|reference| reference.ok())
+		.filter(|reference| {
+			reference
+				.name_bytes()
+				.starts_with(b"refs/autosave/autosaves")
+		})
+		.filter_map(|reference| reference.name().map(|n| n.to_string()))
+		.map(|reference| format!("+{reference}:{reference}"))
+		.collect::<Vec<_>>();
+	remote.push(&refs, Some(PushOptions::new().remote_callbacks(callbacks)))?;
+
 	Ok(())
 }