*: do not require env.sh
This removes the need to source env.{sh,fish} when working with hscloud.
This is done by:
1. Implementing a Go library to reliably detect the location of the
active hscloud checkout. That in turn is enabled by
BUILD_WORKSPACE_DIRECTORY being now a thing in Bazel.
2. Creating a tool `hscloud`, with a command `hscloud workspace` that
returns the workspace path.
3. Wrapping this tool to be accessible from Python and Bash.
4. Bumping all users of hscloud_root to use either the Go library or
one of the two implemented wrappers.
We also drive-by replace tools/install.sh to be a proper sh_binary, and
make it yell at people if it isn't being ran as `bazel run
//tools:install`.
Finally, we also drive-by delete cluster/tools/nixops.sh which was never used.
Change-Id: I7873714319bfc38bbb930b05baa605c5aa36470a
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1169
Reviewed-by: informatic <informatic@hackerspace.pl>
diff --git a/tools/install.sh b/tools/install.sh
index 6151a38..04b4f79 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -1,14 +1,52 @@
#!/usr/bin/env bash
+source tools/hscloud/lib.sh || exit 1
-set -e -o pipefail
+function main() {
+ # If we're not running from `bazel run/buld`, complain and re-execute
+ # ourselves.
+ #
+ # We do the check fairly low level, as //tools/hscloud:lib.sh will just
+ # fail in this case. We want to be nice.
+ #
+ # This is all mostly copied from the runfiles.bash snippet in
+ # tools/hscloud/lib.sh.
+ f=bazel_tools/tools/bash/runfiles/runfiles.bash
+ if [ ! -e "${RUNFILES_DIR:-/dev/null}/$f" ] && \
+ [ ! -e "$(grep -sm1 "^$f " "${RUNFILES_MANIFEST_FILE:-/dev/null}" | cut -f2- -d' ')" ] && \
+ [ ! -e "$0.runfiles/$f" ] && \
+ [ ! -e "$(grep -sm1 "^$f " "$0.runfiles_manifest" | cut -f2- -d' ')" ] && \
+ [ ! -e "$(grep -sm1 "^$f " "$0.exe.runfiles_manifest" | cut -f2- -d' ')" ]; then
+ echo "Uh-oh, looks like you didn't run this as 'bazel run //tools:install'.">&2
+ echo "Let me fix that for you in a few seconds - but work on your muscle memory, as we'll stop supporting this by some point.">&2
+ sleep 2
+ bazel run //tools:install -- "$@"
+ exit $?
+ fi
-if [ -z "$hscloud_root" ]; then
- echo 2>&1 "Please first source env.sh"
- exit 1
-fi
+ cd $(hscloud::workspace_location)
+ echo "Building hscloud tools and cluster tools..."
+ bazel build //tools/... //cluster/tools/...
-cd "${hscloud_root}"
+ local path_missing=""
+ local path="$(hscloud::workspace_location)/bazel-bin/tools"
+ if [[ ":$PATH:" == *":$path:"* ]]; then
+ path_missing="$path"
+ fi
+ local path="$(hscloud::workspace_location)/bazel-bin/cluster/tools"
+ if [[ ":$PATH:" == *":$path:"* ]]; then
+ if [ -z "$path_missing" ]; then
+ path_missing="$path"
+ else
+ path_missing="$path_missing:$path"
+ fi
+ fi
+ if [ -z "$path_missing" ]; then
+ echo "Tools built correctly, but your PATH should be updated to access them:">&2
+ echo ' PATH="$PATH:'$path_missing'"'
+ echo 'Add the above line to your shell profile, or source env.sh from the root of hscloud.'
+ else
+ echo "Tools built correctly and in PATH. Happy hsclouding!"
+ fi
+}
-bazel build //tools/...
-
-cluster/tools/install.sh
+main "$@"