Add signing and notarization to loader

[dlon]

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This change is 

[hulthe]

Reviewed 3 of 4 files at r1, all commit messages.
Reviewable status: 3 of 4 files reviewed, 1 unresolved discussion

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installer-downloader/build.sh line 27 at r1 (raw file):

source ../scripts/utils/log

CARGO_TARGET_DIR=${CARGO_TARGET_DIR:-"../target"}

Should this be exported so that cargo uses it? In practice it might won't matter, since ../target is the folder cargo would have used anyway because of the workspace manifest, but it still feels like this should be exported.

[dlon]

Reviewable status: 3 of 4 files reviewed, all discussions resolved

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installer-downloader/build.sh line 27 at r1 (raw file):

Previously, hulthe (Joakim Hulthe) wrote…

Should this be exported so that cargo uses it? In practice it might won't matter, since ../target is the folder cargo would have used anyway because of the workspace manifest, but it still feels like this should be exported.

Done.

[hulthe]

Reviewable status: 3 of 4 files reviewed, 1 unresolved discussion

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installer-downloader/build.sh line 29 at r1 (raw file):

CARGO_TARGET_DIR=${CARGO_TARGET_DIR:-"../target"}
BUILD_DIR="./build"
DIST_DIR="./dist"

what's the difference between these? could you add comments? :]

[hulthe]

Reviewed 1 of 1 files at r2, 1 of 1 files at r3, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @dlon)

[dlon]

TODO: Use absolute path.