凤凰：**（混合）找不到迁移目录“私法/回购/迁移”

Question

当运行我的圈子CI测试的干净生成凤凰的项目，我得到：

$ mix test 
==> connection 
Compiling 1 file (.ex) 
Generated connection app 
==> gettext 
Compiling 1 file (.erl) 
Compiling 20 files (.ex) 
Generated gettext app 
===> Compiling ranch 
==> poolboy (compile) 
==> decimal 
Compiling 1 file (.ex) 
Generated decimal app 
==> poison 
Compiling 4 files (.ex) 
warning: HashDict.size/1 is deprecated, use maps and the Map module instead 
    lib/poison/encoder.ex:283 

Generated poison app 
==> db_connection 
Compiling 23 files (.ex) 
warning: module attribute @regulator was set but never used 
    lib/db_connection/sojourn.ex:39 

Generated db_connection app 
==> phoenix_pubsub 
Compiling 12 files (.ex) 
Generated phoenix_pubsub app 
===> Compiling cowlib 
===> Compiling cowboy 
==> mime 
Compiling 1 file (.ex) 
Generated mime app 
==> plug 
Compiling 44 files (.ex) 
Generated plug app 
==> phoenix_html 
Compiling 8 files (.ex) 
Generated phoenix_html app 
==> phoenix 
Compiling 60 files (.ex) 
Generated phoenix app 
==> postgrex 
Compiling 61 files (.ex) 
Generated postgrex app 
==> ecto 
Compiling 69 files (.ex) 
Compiling lib/ecto/query/builder/lock.ex (it's taking more than 10s) 
Compiling lib/ecto/repo/queryable.ex (it's taking more than 10s) 
Compiling lib/ecto/query/builder/filter.ex (it's taking more than 10s) 
Compiling lib/ecto/repo/preloader.ex (it's taking more than 10s) 
Compiling lib/ecto/migration/runner.ex (it's taking more than 10s) 
Compiling lib/ecto/repo/schema.ex (it's taking more than 10s) 
Compiling lib/ecto/migration/schema_migration.ex (it's taking more than 10s) 
Compiling lib/ecto/adapters/postgres/connection.ex (it's taking more than 10s) 
Compiling lib/ecto/changeset.ex (it's taking more than 10s) 
Generated ecto app 
==> phoenix_ecto 
Compiling 4 files (.ex) 
Generated phoenix_ecto app 
==> martinffx 
Compiling 15 files (.ex) 
Generated martinffx app 
** (Mix) Could not find migrations directory "priv/repo/migrations" 
for repo Martinffx.Repo. 

This may be because you are in a new project and the 
migration directory has not been created yet. Creating an 
empty directory at the path above will fix this error. 

If you expected existing migrations to be found, please 
make sure your repository has been properly configured 
and the configured path exists. 

但在运行时相同命令在本地运行成功：

$ mix test 
.... 

Finished in 0.1 seconds 
4 tests, 0 failures 

Randomized with seed 328700 

为什么？我没有迁移运行？它在当地有效......发生了什么？

circle.yml

machine: 
    environment: 
    PATH: "$HOME/.asdf/bin:$HOME/.asdf/shims:$PATH" 

dependencies: 
    cache_directories: 
    - ~/.asdf 
    - deps 
    - _build 
    pre: 
    - chmod +x ./circle_pre_build.sh 
    - ./circle_pre_build.sh 

database: 
    override: 
    - psql -U ubuntu < ./db/init-test.sql 

test: 
    override: 
    - elixir -v 
    - mix deps 
    - node -v 
    - npm -v 
    - mix test 

circle_pre_build.sh

#!/bin/bash 

# http://code.parent.co/phoenix-circleci-heroku/ 
# Ensure exit codes other than 0 fail the build 
set -e 

# Check for asdf 
if [ ! asdf | grep version ] 
then 
    git clone https://github.com/HashNuke/asdf.git ~/.asdf; 

    # Add plugins for asdf 
    asdf plugin-add erlang https://github.com/HashNuke/asdf-erlang.git 
    asdf plugin-add elixir https://github.com/HashNuke/asdf-elixir.git 
fi 

# Install erlang/elixir 
erlang_version=$(awk '/erlang/ { print $2 }' .tool-versions) 
asdf install erlang $erlang_version 
elixir_version=$(awk '/elixir/ { print $2 }' .tool-versions) 
asdf install elixir $elixir_version 

# Get dependencies 
yes | mix deps.get 
yes | mix deps.compile 

# Exit successfully 
exit 0 

的init-TEST.SQL

DROP DATABASE martinffx_test; 
DO $$ 
BEGIN 
    IF NOT EXISTS (
    SELECT * 
    FROM pg_catalog.pg_user 
    WHERE usename = 'martinffx') THEN 

    CREATE ROLE martinffx LOGIN PASSWORD 'password'; 
    ALTER USER martinffx CREATEDB; 
    END IF; 
END 
$$; 

软件版本

$ elixir -v 
Erlang/OTP 19 [erts-8.2] [source] [64-bit] [smp:32:2] [async-threads:10] [hipe] [kernel-poll:false] 

Elixir 1.4.0 

$ mix deps 
* connection 1.0.4 (Hex package) (mix) 
    locked at 1.0.4 (connection) a1cae722 
    ok 
* fs 0.9.1 (Hex package) (rebar) 
    locked at 0.9.2 (fs) ed17036c 
    ok 
* gettext 0.13.1 (Hex package) (mix) 
    locked at 0.13.1 (gettext) 5e0daf4e 
    ok 
* ranch 1.3.2 (Hex package) (rebar3) 
    locked at 1.3.2 (ranch) e4965a14 
    ok 
* poolboy 1.5.1 (Hex package) (rebar) 
    locked at 1.5.1 (poolboy) 6b461639 
    ok 
* decimal 1.3.1 (Hex package) (mix) 
    locked at 1.3.1 (decimal) 157b3ced 
    ok 
* poison 2.2.0 (Hex package) (mix) 
    locked at 2.2.0 (poison) 4763b69a 
    ok 
* db_connection 1.1.0 (Hex package) (mix) 
    locked at 1.1.0 (db_connection) b2b88db6 
    ok 
* phoenix_pubsub 1.0.1 (Hex package) (mix) 
    locked at 1.0.1 (phoenix_pubsub) c10ddf62 
    ok 
* cowlib 1.0.2 (Hex package) (rebar3) 
    locked at 1.0.2 (cowlib) 9d769a1d 
    ok 
* cowboy 1.1.2 (Hex package) (rebar3) 
    locked at 1.1.2 (cowboy) 61ac29ea 
    ok 
* mime 1.0.1 (Hex package) (mix) 
    locked at 1.0.1 (mime) 05c39385 
    ok 
* plug 1.3.0 (Hex package) (mix) 
    locked at 1.3.0 (plug) 6e2b01af 
    ok 
* phoenix_html 2.9.3 (Hex package) (mix) 
    locked at 2.9.3 (phoenix_html) 1b5a2122 
    ok 
* phoenix 1.2.1 (Hex package) (mix) 
    locked at 1.2.1 (phoenix) 6dc59224 
    ok 
* phoenix_live_reload 1.0.8 (Hex package) (mix) 
    locked at 1.0.8 (phoenix_live_reload) 4333f9c7 
    ok 
* postgrex 0.13.0 (Hex package) (mix) 
    locked at 0.13.0 (postgrex) e101ab47 
    ok 
* ecto 2.1.3 (Hex package) (mix) 
    locked at 2.1.3 (ecto) ffb24e15 
    ok 
* phoenix_ecto 3.2.1 (Hex package) (mix) 
    locked at 3.2.1 (phoenix_ecto) 6cf11d59 
    ok 

$ node -v 
v4.2.6 

$ npm -v 
2.14.12 

Answer 1

不包含任何文件本身或任何子目录中的目录不存储在git中。由于您的迁移目录没有任何迁移，即使您将整个应用程序添加并提交到git中，当您将git repo克隆到另一个目录时，也会发现priv/repo/migrations目录不存在。 Ecto要求这个目录存在，这就是你得到错误的原因。

为了让git创建priv/repo/migrations，您可以在priv/repo/migrations内创建并提交一个虚拟文件。您还可以添加以下行预生成shell文件（mix compile之前）创建目录，如果它不存在：

mkdir -p priv/repo/migrations