add travis

.travis.yml

@@ -0,0 +1,24 @@
+language: go
+sudo: false
+notifications:
+  email: false
+jobs:
+  include:
+  - go: 1.10.x
+    stage: deploy
+    go_import_path: github.com/wzshiming/pic2ascii
+    install: skip
+    script: skip
+    before_deploy:
+    - ./build_all.bash
+    deploy:
+      provider: releases
+      api_key:
+        secure: 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
+      file_glob: true
+      file: release/*
+      skip_cleanup: true
+      on:
+        repo: wzshiming/pic2ascii
+        branch: master
+        tags: true

build_all.bash

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+set -e
+
+BASENAME=pic2ascii
+SRC_ROOT=$(git rev-parse --show-toplevel)
+VERSION=$(git describe --tags --dirty)
+COMMIT_HASH=$(git rev-parse --short HEAD 2>/dev/null)
+DATE=$(date "+%Y-%m-%d")
+IMPORT_DURING_SOLVE=${IMPORT_DURING_SOLVE:-false}
+
+if [[ "$(pwd)" != "${SRC_ROOT}" ]]; then
+  echo "you are not in the root of the repo" 1>&2
+  echo "please cd to ${SRC_ROOT} before running this script" 1>&2
+  exit 1
+fi
+
+GO_BUILD_CMD="go build -a -installsuffix cgo"
+GO_BUILD_LDFLAGS="-s -w -X main.commitHash=${COMMIT_HASH} -X main.buildDate=${DATE} -X main.version=${VERSION} -X main.flagImportDuringSolve=${IMPORT_DURING_SOLVE}"
+
+if [[ -z "${SRC_BUILD_PLATFORMS}" ]]; then
+    SRC_BUILD_PLATFORMS="linux windows darwin freebsd"
+fi
+
+if [[ -z "${SRC_BUILD_ARCHS}" ]]; then
+    SRC_BUILD_ARCHS="amd64 386"
+fi
+
+mkdir -p "${SRC_ROOT}/release"
+
+for OS in ${SRC_BUILD_PLATFORMS[@]}; do
+  for ARCH in ${SRC_BUILD_ARCHS[@]}; do
+    NAME="${BASENAME}_${OS}_${ARCH}"
+    if [[ "${OS}" == "windows" ]]; then
+      NAME="${NAME}.exe"
+    fi
+    echo "Building for ${OS}/${ARCH}"
+    GOARCH=${ARCH} GOOS=${OS} CGO_ENABLED=0 ${GO_BUILD_CMD} -ldflags "${GO_BUILD_LDFLAGS}"\
+     -o "${SRC_ROOT}/release/${NAME}" ./cmd/${BASENAME}
+    shasum -a 256 "${SRC_ROOT}/release/${NAME}" > "${SRC_ROOT}/release/${NAME}".sha256
+  done
+done