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analytics: make Linux UUID generation more robust

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Not every Linux system has a pre-installed `uuidgen` command (Debian
has a package `uuid-runtime` but doesn't install it by default). In
contrast, `/proc/sys/kernel/random/uuid` is always available on a modern
Linux system and produces type/version 4 UUIDs, just like `uuidgen`.

Closes #416.

Signed-off-by: Martin Afanasjew <martin@afanasjew.de>
This commit is contained in:
Martin Afanasjew 2016-06-29 14:16:39 +02:00
parent 271023c5e1
commit b1811f2ef3
1 changed files with 6 additions and 1 deletions
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5
Library/Homebrew/utils/analytics.sh
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@ -35,7 +35,12 @@ setup-analytics() {
HOMEBREW_ANALYTICS_USER_UUID="$(git config --file="$git_config_file" --get homebrew.analyticsuuid)"
if [[ -z "$HOMEBREW_ANALYTICS_USER_UUID" ]]
then
if [[ -n "$HOMEBREW_LINUX" ]]
then
HOMEBREW_ANALYTICS_USER_UUID="$(tr a-f A-F < /proc/sys/kernel/random/uuid)"
else
HOMEBREW_ANALYTICS_USER_UUID="$(uuidgen)"
fi
if [[ -z "$HOMEBREW_ANALYTICS_USER_UUID" ]]
then