add docker-credential-pass to dev img and use it in travis

.travis.yml

@@ -6,14 +6,15 @@ addons:
   apt:
     packages:
     - docker-ce
+    - pass
 env:
   global:
   - USE_DOCKER="true"
   - WDIR=/go/src/github.com/filebrowser/filebrowser
 stages:
-- lint
-- test
-- release
+  - lint
+  - test
+  - release
 cache:
   directories:
     - vendor
@@ -30,7 +31,7 @@ jobs:
       script:
       - cp dockerfiles/filebrowser Dockerfile
       - docker build -t filebrowser/filebrowser .
-      - echo "$DOCKER_PASS" | docker login -u "$DOCKER_USER" --password-stdin
+      - ./build/docker_login.sh
       - docker push filebrowser/filebrowser
       - docker logout
       on:
@@ -40,7 +41,7 @@ jobs:
   - stage: release
     script:
       - cp dockerfiles/filebrowser Dockerfile
-      - echo "$DOCKER_PASS" | docker login -u "$DOCKER_USER" --password-stdin
+      - ./build/docker_login.sh
       - docker run --rm -itv $(pwd):$WDIR -v /var/run/docker.sock:/var/run/docker.sock filebrowser/dev goreleaser
       - docker logout
     if: tag IS present

build/docker_login.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+set -e
+
+# init key for pass
+gpg --batch --gen-key <<-EOF
+%echo Generating a standard key
+Key-Type: DSA
+Key-Length: 1024
+Subkey-Type: ELG-E
+Subkey-Length: 1024
+Name-Real: Meshuggah Rocks
+Name-Email: meshuggah@example.com
+Expire-Date: 0
+# Do a commit here, so that we can later print "done" :-)
+%commit
+%echo done
+EOF
+
+key=$(gpg --no-auto-check-trustdb --list-secret-keys | grep ^sec | cut -d/ -f2 | cut -d" " -f1)
+pass init $key
+
+if [ "$(command -v docker-credential-pass)" = "" ]; then
+  docker run --rm -itv /usr/local/bin:/src filebrowser/dev sh -c "cp /go/bin/docker-credential-pass /src"
+fi
+
+echo "$DOCKER_PASS" | docker login -u "$DOCKER_USER" --password-stdin

dockerfiles/dev

@@ -23,5 +23,12 @@ RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/reposit
   chmod +x /go/bin/dep && \
   curl -sL https://git.io/goreleaser -o /go/bin/goreleaser && \
   chmod +x /go/bin/goreleaser && \
-  curl -fsSL https://download.docker.com/linux/static/edge/x86_64/docker-18.05.0-ce.tgz | tar xvz --strip-components=1 docker/docker -C /usr/local/bin && \
-  chmod +x /usr/local/bin/docker
+  curl -fsSL https://download.docker.com/linux/static/edge/x86_64/docker-18.05.0-ce.tgz | tar xvz --strip-components=1 docker/docker -C /go/bin && \
+  chmod +x /go/bin/docker && \
+  curl -fsSL $( \
+    curl -s https://api.github.com/repos/docker/docker-credential-helpers/releases/latest \
+    | grep "browser_download_url.*pass-.*-amd64"  \
+    | cut -d : -f 2,3 \
+    | tr -d \" \
+  ) | tar xv -C /go/bin && \
+  chmod + /go/bin/docker-credential-pass