Set up Travis to build modified packages

6 files changed, 208 insertions, 0 deletions

diff --git a/.travis/abuild-apk b/.travis/abuild-apk
new file mode 100644
index 0000000000..a7ef73057d
--- /dev/null
+++ b/.travis/abuild-apk
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec /usr/bin/abuild-apk --no-progress $@
diff --git a/.travis/build-pkgs b/.travis/build-pkgs
new file mode 100755
index 0000000000..6c65407041
--- /dev/null
+++ b/.travis/build-pkgs
@@ -0,0 +1,75 @@
+#!/bin/sh
+# vim: set ts=4:
+set -eu
+
+. "$(dirname "$0")"/common.sh
+
+# Prints names of top-level directories (i.e. repositories) that has been
+# changed/created in the specified revisions.
+changed_repos() {
+        local commit_ish="$1"
+
+        git diff-tree --name-only "$commit_ish" | grep -v '^\..*' || echo ''
+}
+
+# Prints names of repo's subdirs (i.e. abuilds) that contains APKBUILDs which
+# has been changed/created in the specified revisions. The abuild names are
+# printed in a build order.
+changed_abuilds() {
+        local repo="$1"
+        local commit_ish="$2"
+
+        # Get names of repo's subdirectories with modified APKBUILD.
+        local aports="$(git diff-tree -r --relative="$repo" --name-only "$commit_ish" -- '*APKBUILD' \
+                                        | xargs -I% dirname % | xargs)"
+
+        # Sort abuilds by build order.
+        ap builddirs -d "$(pwd)/$repo" $aports 2>/dev/null | xargs -I% basename %
+}
+
+
+cd "$CLONE_DIR"
+
+# Workarounds for oddities of TRAVIS_COMMIT_RANGE that:
+#   - may be empty when pushing single commit,
+#   - uses triple-dot range instead of double-dot that we need,
+#   - contains SHA of old (unreachable) commit when rebasing.
+commit_range="$(echo "${TRAVIS_COMMIT_RANGE:-}" | sed -E 's/\.{3}/../')"
+if ! git rev-parse "$commit_range" >/dev/null 2>&1; then
+        commit_range="$(git rev-parse HEAD^1)..HEAD"
+fi
+
+failed_pkgs=''
+successful_pkgs=''
+
+
+title "Building abuilds that has been modified/added between $commit_range\n"
+
+echo 'Diffstat:'
+git --no-pager diff --color --stat "$commit_range"
+
+for repo in $(changed_repos "$commit_range"); do
+        for pkgname in $(changed_abuilds "$repo" "$commit_range"); do
+                qname="$repo/$pkgname"
+
+                fold_start "$pkgname" "Building package $qname"
+
+                if APKBUILD="$qname/APKBUILD" abuild -fr; then
+                        successful_pkgs="$successful_pkgs $qname"
+                else
+                        failed_pkgs="$failed_pkgs $qname"
+                fi
+                fold_end "$pkgname"
+        done
+done
+
+printf '\n----\n'
+if [ -n "$successful_pkgs" ]; then
+        print -s1 -c2 "Successfully build packages:$successful_pkgs\n"
+fi
+if [ -n "$failed_pkgs" ]; then
+        die "Failed to build packages:$failed_pkgs"
+
+elif [ -z "$successful_pkgs" ]; then
+        die 'No packages found to be build.'
+fi
diff --git a/.travis/common.sh b/.travis/common.sh
new file mode 100644
index 0000000000..bf4b2ff945
--- /dev/null
+++ b/.travis/common.sh
@@ -0,0 +1,61 @@
+# vim: set ts=4:
+
+readonly ALPINE_ROOT='/mnt/alpine'
+readonly ALPINE_USER='alpine'
+readonly CLONE_DIR="${CLONE_DIR:-$(pwd)}"
+
+# Runs commands inside the Alpine chroot.
+alpine_run() {
+        local user="${1:-root}"
+        local cmd="${2:-sh}"
+
+        local _sudo=
+        [ "$(id -u)" -eq 0 ] || _sudo='sudo'
+
+        $_sudo chroot "$ALPINE_ROOT" /usr/bin/env -i su -l $user \
+                sh -c "cd $CLONE_DIR; $cmd"
+}
+
+die() {
+        print -s1 -c1 "$@\n" 1>&2
+        exit 1
+}
+
+# Marks start of named folding section for Travis and prints title.
+fold_start() {
+        local name="$1"
+        local title="$2"
+
+        printf "\ntravis_fold:start:$name "
+        print -s1 -c6 "> $title\n"
+}
+
+# Marks end of the named folding section.
+fold_end() {
+        local name="$1"
+
+        printf "travis_fold:end:$name\n"
+}
+
+# Prints formatted and colored text.
+print() {
+        local style=0
+        local fcolor=9
+
+        local opt; while getopts 's:c:' opt; do
+                case "$opt" in
+                        s) style="$OPTARG";;
+                        c) fcolor="$OPTARG";;
+                esac
+        done
+
+        shift $(( OPTIND - 1 ))
+        local text="$@"
+
+        printf "\033[${style};3${fcolor}m$text\033[0m"
+}
+
+title() {
+        printf '\n'
+        print -s1 -c6 "==> $@\n"
+}
diff --git a/.travis/install-alpine b/.travis/install-alpine
new file mode 100755
index 0000000000..fac726c2f8
--- /dev/null
+++ b/.travis/install-alpine
@@ -0,0 +1,33 @@
+#!/bin/sh
+# vim: set ts=4:
+set -eu
+
+. "$(dirname "$0")"/common.sh
+
+APK_TOOLS_URI='https://repository.fit.cvut.cz/mirrors/alpine/v3.3/main/x86_64/apk-tools-static-2.6.5-r1.apk'
+APK_TOOLS_SHA256='03162d70e6d42eea77624a8da76d69e665ca19aa834361c3652414f111884636'
+
+
+title 'Downloading apk-tools-static'
+
+cd /tmp
+wget "$APK_TOOLS_URI"
+echo "$APK_TOOLS_SHA256  $(basename "$APK_TOOLS_URI")" | sha256sum -c
+tar -xzf $(basename "$APK_TOOLS_URI")
+
+
+title 'Installing Alpine Linux'
+
+mkdir -p "$ALPINE_ROOT"/etc/apk
+cd "$ALPINE_ROOT"
+
+cp "$CLONE_DIR"/.travis/repositories etc/apk/repositories
+cp /etc/resolv.conf etc/resolv.conf
+
+/tmp/sbin/apk.static \
+        --root . --allow-untrusted --update-cache --initdb --no-progress \
+        add alpine-base
+
+mount -t proc none proc
+mount --rbind /sys sys
+mount --rbind /dev dev
diff --git a/.travis/repositories b/.travis/repositories
new file mode 100644
index 0000000000..b6f1e761eb
--- /dev/null
+++ b/.travis/repositories
@@ -0,0 +1,3 @@
+https://repository.fit.cvut.cz/mirrors/alpine/edge/main
+https://repository.fit.cvut.cz/mirrors/alpine/edge/community
+https://repository.fit.cvut.cz/mirrors/alpine/edge/testing
diff --git a/.travis/setup-alpine b/.travis/setup-alpine
new file mode 100755
index 0000000000..a922dff671
--- /dev/null
+++ b/.travis/setup-alpine
@@ -0,0 +1,33 @@
+#!/bin/sh
+# vim: set ts=4:
+set -eu
+
+. "$(dirname "$0")"/common.sh
+
+title 'Setting up Alpine Linux'
+
+mkdir -p "${ALPINE_ROOT}${CLONE_DIR}"
+mount --bind "$CLONE_DIR" "${ALPINE_ROOT}${CLONE_DIR}"
+
+alpine_run <<-EOF
+        apk add alpine-sdk lua-aports
+
+        adduser -G users -s /bin/sh -D $ALPINE_USER
+        addgroup $ALPINE_USER abuild
+        addgroup $ALPINE_USER wheel
+
+        echo '%wheel ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/wheel
+
+        sed -i 's/JOBS=[0-9]*/JOBS=$(nproc)/' /etc/abuild.conf
+
+        mkdir -p /var/cache/distfiles
+        chmod a+w /var/cache/distfiles
+
+        # Hack to disable apk's progress bar.
+        install -m755 -D .travis/abuild-apk /usr/local/bin/abuild-apk
+EOF
+
+# This key will not be used anywhere, just to make abuild happy...
+alpine_run $ALPINE_USER <<-EOF
+        abuild-keygen -ain
+EOF