sha mismatches for git dependencies

[gilligan]

Specifying a dependency from github leads to sha mismatch errors:

deps.json:

[
    { "react-autosuggest": "holidaycheck/react-autosuggest#43074a439d26243ea07110f0c5752a6fc8aebe4d" }
]

build output:

$ nix-build 
these derivations will be built:
  /nix/store/pklnc1c1sk9b5irqm9acxpx3w9nmf7zn-react-autosuggest-43074a4.drv
  /nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv
building path(s) ‘/nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4’
exporting git://github.com/holidaycheck/react-autosuggest (rev 43074a439d26243ea07110f0c5752a6fc8aebe4d) into /nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4
Initialized empty Git repository in /nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4/.git/
remote: Counting objects: 102, done.        
remote: Compressing objects: 100% (95/95), done.        
remote: Total 102 (delta 15), reused 51 (delta 4), pack-reused 0        
Receiving objects: 100% (102/102), 106.99 KiB | 0 bytes/s, done.
Resolving deltas: 100% (15/15), done.
From git://github.com/holidaycheck/react-autosuggest
 * branch            HEAD       -> FETCH_HEAD
Switched to a new branch 'fetchgit'
removing `.git'...
output path ‘/nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4’ has r:sha256 hash ‘08n29gzi6gky8zmwlszrw3bccwn6v27lgab3x39p20r9k8mbfgax’ when ‘04fmxsn8irsjhc2fv4kllj50v173vhjwi7ll770f53p1mrlv5kcr’ was expected
cannot build derivation ‘/nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv’: 1 dependencies couldn't be built
error: build of ‘/nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv’ failed

After fixing the checksum in node-packages.nix everything works just fine.$ nix-build
these derivations will be built:
/nix/store/pklnc1c1sk9b5irqm9acxpx3w9nmf7zn-react-autosuggest-43074a4.drv
/nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv
building path(s) ‘/nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4’
exporting git://github.com/holidaycheck/react-autosuggest (rev 43074a439d26243ea07110f0c5752a6fc8aebe4d) into /nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4
Initialized empty Git repository in /nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4/.git/
remote: Counting objects: 102, done.
remote: Compressing objects: 100% (95/95), done.
remote: Total 102 (delta 15), reused 51 (delta 4), pack-reused 0
Receiving objects: 100% (102/102), 106.99 KiB | 0 bytes/s, done.
Resolving deltas: 100% (15/15), done.
From git://github.com/holidaycheck/react-autosuggest

• branch HEAD -> FETCH_HEAD
  Switched to a new branch 'fetchgit'
  removing `.git'...
  output path ‘/nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4’ has r:sha256 hash ‘08n29gzi6gky8zmwlszrw3bccwn6v27lgab3x39p20r9k8mbfgax’ when ‘04fmxsn8irsjhc2fv4kllj50v173vhjwi7ll770f53p1mrlv5kcr’ was expected
  cannot build derivation ‘/nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv’: 1 dependencies couldn't be built
  error: build of ‘/nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv’ failed
  $ nix-build
  these derivations will be built:
  /nix/store/pklnc1c1sk9b5irqm9acxpx3w9nmf7zn-react-autosuggest-43074a4.drv
  /nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv
  building path(s) ‘/nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4’
  exporting git://github.com/holidaycheck/react-autosuggest (rev 43074a439d26243ea07110f0c5752a6fc8aebe4d) into /nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4
  Initialized empty Git repository in /nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4/.git/
  remote: Counting objects: 102, done.
  remote: Compressing objects: 100% (95/95), done.
  remote: Total 102 (delta 15), reused 51 (delta 4), pack-reused 0
  Receiving objects: 100% (102/102), 106.99 KiB | 0 bytes/s, done.
  Resolving deltas: 100% (15/15), done.
  From git://github.com/holidaycheck/react-autosuggest
• branch HEAD -> FETCH_HEAD
  Switched to a new branch 'fetchgit'
  removing `.git'...
  output path ‘/nix/store/5ccj2q9j8zk6ink6pmms6lyqwb66vs6a-react-autosuggest-43074a4’ has r:sha256 hash ‘08n29gzi6gky8zmwlszrw3bccwn6v27lgab3x39p20r9k8mbfgax’ when ‘04fmxsn8irsjhc2fv4kllj50v173vhjwi7ll770f53p1mrlv5kcr’ was expected
  cannot build derivation ‘/nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv’: 1 dependencies couldn't be built
  error: build of ‘/nix/store/6wa7fc07y3pdwzlz999h6cb54xqb148f-node-react-autosuggest-3.7.4.drv’ failed

[svanderburg]

I have created a branch: fetchgit_fix that should solve the problem. Now that the 16.09 release of Nixpkgs comes close, this should become the default.

To try it, use this branch: https://github.com/svanderburg/node2nix/tree/fetchgit_fix

Install the development version with:

nix-env -f release.nix -iA package.x86_64-linux

Note that this branch of node2nix is incompatible with the latest stable version of Nixpkgs (version 16.03). It only works with master (future 16.09)

[svanderburg]

This has been fixed in the 1.0.1 release