Something went wrong. Try again.
What happens if I push all of nixpkgs
Something went wrong. Try again.
5.9 kB · 183 lines
Nix
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184{ lib, stdenvNoCC, git, git-lfs, cacert,}:
let urlToName = url: rev: let shortRev = lib.sources.shortRev rev; appendShort = lib.optionalString ((builtins.match "[a-f0-9]*" rev) != null) "-${shortRev}"; in "${lib.sources.urlToName url}${appendShort}";in
lib.makeOverridable ( lib.fetchers.withNormalizedHash { } ( # NOTE Please document parameter additions or changes in # ../../../doc/build-helpers/fetchers.chapter.md { url, tag ? null, rev ? null, name ? urlToName url (lib.revOrTag rev tag), leaveDotGit ? deepClone || fetchTags, outputHash ? lib.fakeHash, outputHashAlgo ? null, fetchSubmodules ? true, deepClone ? false, branchName ? null, sparseCheckout ? [ ], nonConeMode ? false, nativeBuildInputs ? [ ], # Shell code executed before the file has been fetched. This, in # particular, can do things like set NIX_PREFETCH_GIT_CHECKOUT_HOOK to # run operations between the checkout completing and deleting the .git # directory. preFetch ? "", # Shell code executed after the file has been fetched # successfully. This can do things like check or transform the file. postFetch ? "", preferLocalBuild ? true, fetchLFS ? false, # Shell code to build a netrc file for BASIC auth netrcPhase ? null, # Impure env vars (https://nixos.org/nix/manual/#sec-advanced-attributes) # needed for netrcPhase netrcImpureEnvVars ? [ ], meta ? { }, allowedRequisites ? null, # fetch all tags after tree (useful for git describe) fetchTags ? false, }:
/* NOTE: fetchgit has one problem: git fetch only works for refs. This is because fetching arbitrary (maybe dangling) commits creates garbage collection risks and checking whether a commit belongs to a ref is expensive. This may change in the future when some caching is added to git (?) Usually refs are either tags (refs/tags/*) or branches (refs/heads/*) Cloning branches will make the hash check fail when there is an update. But not all patches we want can be accessed by tags.
The workaround is getting the last n commits so that it's likely that they still contain the hash we want.
for now : increase depth iteratively (TODO)
real fix: ask git folks to add a git fetch $HASH contained in $BRANCH facility because checking that $HASH is contained in $BRANCH is less expensive than fetching --depth $N. Even if git folks implemented this feature soon it may take years until server admins start using the new version? */
assert nonConeMode -> (sparseCheckout != [ ]); assert fetchTags -> leaveDotGit;
let revWithTag = let warningMsg = "fetchgit requires one of either `rev` or `tag` to be provided (not both)."; otherIsNull = other: lib.assertMsg (other == null) warningMsg; in if tag != null then assert (otherIsNull rev); "refs/tags/${tag}" else if rev != null then assert (otherIsNull tag); rev else # FIXME fetching HEAD if no rev or tag is provided is problematic at best "HEAD"; in
if builtins.isString sparseCheckout then # Changed to throw on 2023-06-04 throw "Please provide directories/patterns for sparse checkout as a list of strings. Passing a (multi-line) string is not supported any more." else stdenvNoCC.mkDerivation { inherit name;
builder = ./builder.sh; fetcher = ./nix-prefetch-git;
nativeBuildInputs = [ git cacert ] ++ lib.optionals fetchLFS [ git-lfs ] ++ nativeBuildInputs;
inherit outputHash outputHashAlgo; outputHashMode = "recursive";
# git-sparse-checkout(1) says: # > When the --stdin option is provided, the directories or patterns are read # > from standard in as a newline-delimited list instead of from the arguments. sparseCheckout = builtins.concatStringsSep "\n" sparseCheckout;
inherit url leaveDotGit fetchLFS fetchSubmodules deepClone branchName nonConeMode preFetch postFetch fetchTags ; rev = revWithTag;
postHook = if netrcPhase == null then null else '' ${netrcPhase} # required that git uses the netrc file mv {,.}netrc export NETRC=$PWD/.netrc export HOME=$PWD '';
impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ netrcImpureEnvVars ++ [ "GIT_PROXY_COMMAND" "NIX_GIT_SSL_CAINFO" "SOCKS_SERVER"
# This is a parameter intended to be set by setup hooks or preFetch # scripts that want per-URL control over HTTP proxies used by Git # (if per-URL control isn't needed, `http_proxy` etc. will # suffice). It must be a whitespace-separated (with backslash as an # escape character) list of pairs like this: # # http://domain1/path1 proxy1 https://domain2/path2 proxy2 # # where the URLs are as documented in the `git-config` manual page # under `http.<url>.*`, and the proxies are as documented on the # same page under `http.proxy`. "FETCHGIT_HTTP_PROXIES" ];
inherit preferLocalBuild meta allowedRequisites;
passthru = { gitRepoUrl = url; inherit tag; }; } ))