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t: move 'hex2oct' into test-lib-functions.sh

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The helper 'hex2oct' is used to convert base-16 encoded data into a
base-8 binary form, and is useful for preparing data for commands that
accept input in a binary format, such as 'git hash-object', via
'printf'.

This helper is defined identically in three separate places throughout
't'. Move the definition to test-lib-function.sh, so that it can be used
in new test suites, and its definition is not redundant.

This will likewise make our job easier in the subsequent commit, which
also uses 'hex2oct'.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau
2019-04-04 20:37:42 -07:00
committed by Junio C Hamano
parent aeb582a983
commit 5c07647d98
4 changed files with 6 additions and 12 deletions
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6
t/test-lib-functions.sh
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@ -1202,6 +1202,12 @@ depacketize () {
'
}
# Converts base-16 data into base-8. The output is given as a sequence of
# escaped octals, suitable for consumption by 'printf'.
hex2oct () {
perl -ne 'printf "\\%03o", hex for /../g'
}
# Set the hash algorithm in use to $1. Only useful when testing the testsuite.
test_set_hash () {
test_hash_algo="$1"