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Merge: more compatibility for git* fetchers

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They're additional commits from #26877.
Changing names of the fetched stuff was changing very many hashes,
and I think it's better to avoid that for the moment to reduce work
needed by nixpkgs users.  The fetchers are expected to be commonly
used even outside nixpkgs, and the current naming wasn't that bad
usually.

(commit analogical to d10c3cc5eedf58e80e2; I haven't noticed the part of
the PR has already got to master)
This commit is contained in:
Vladimír Čunát 2017-07-09 10:31:24 +02:00
commit 986c17727e
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2 changed files with 30 additions and 13 deletions
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16
pkgs/build-support/fetchgit/default.nix
View File

@ -1,9 +1,21 @@
{stdenv, git, cacert, gitRepoToName}:
{stdenv, git, cacert}: let
urlToName = url: rev: let
inherit (stdenv.lib) removeSuffix splitString last;
base = last (splitString ":" (baseNameOf (removeSuffix "/" url)));
matched = builtins.match "(.*).git" base;
short = builtins.substring 0 7 rev;
appendShort = if (builtins.match "[a-f0-9]*" rev) != null
then "-${short}"
else "";
in "${if matched == null then base else builtins.head matched}${appendShort}";
in
{ url, rev ? "HEAD", md5 ? "", sha256 ? "", leaveDotGit ? deepClone
, fetchSubmodules ? true, deepClone ? false
, branchName ? null
, name ? gitRepoToName url rev
, name ? urlToName url rev
, # Shell code executed after the file has been fetched
# successfully. This can do things like check or transform the file.
postFetch ? ""

27
pkgs/build-support/fetchgit/gitrepotoname.nix
View File

@ -1,14 +1,19 @@
{ lib }:
urlOrRepo: rev: let
inherit (lib) removeSuffix splitString last;
base = last (splitString ":" (baseNameOf (removeSuffix "/" urlOrRepo)));
let
inherit (lib) removeSuffix hasPrefix removePrefix splitString stringToCharacters concatMapStrings last elem;
matched = builtins.match "(.*).git" base;
short = builtins.substring 0 7 rev;
appendShort = if (builtins.match "[a-f0-9]*" rev) != null
then "-${short}"
else "";
in "${if matched == null then base else builtins.head matched}${appendShort}"
allowedChars = stringToCharacters "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-._?=";
sanitizeStoreName = s:
let
s' = concatMapStrings (c: if elem c allowedChars then c else "") (stringToCharacters s);
s'' = if hasPrefix "." s' then "_${removePrefix "." s'}" else s';
in
s'';
in
urlOrRepo: rev:
let
repo' = last (splitString ":" (baseNameOf (removeSuffix ".git" (removeSuffix "/" urlOrRepo))));
rev' = baseNameOf rev;
in
"${sanitizeStoreName repo'}-${sanitizeStoreName rev'}-src"