1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#!/bin/bash
# Helper script to get the list of changed files for this build.
# If a PR it lists the changes from the target branch.
# If a 'regular' branch build the changes since the last build.
set -e
function files_list
{
git diff --name-only --diff-filter ACMRT "$@"
}
if [ "$TRAVIS" = "true" ]
then
# https://docs.travis-ci.com/user/environment-variables/
if [ -n $TRAVIS_COMMIT_RANGE ]
then
# If this string is populated, it should work.
# But it mught fail, due to e.g. the shallow clone depth missing the
# relevant commit, in which case we fail
files_list $TRAVIS_COMMIT_RANGE || exit 1
else
# The only time it isn't populated is on a new PR branch, where THIS will work.
files_list $TRAVIS_BRANCH
fi
elif [ -n "$GITHUB_BASE_REF" ]
then
base="origin/$GITHUB_BASE_REF"
# We need to fetch enough commits to be able to compute the merge-base
# between this PR and master
commits_to_fetch=10
fetch_limit=10000
while [ -z "$( git merge-base "$base" HEAD^2 2>/dev/null )" ]
do
git fetch -q --deepen=$commits_to_fetch origin "$GITHUB_BASE_REF" HEAD
(( commits_to_fetch *= 2 ))
if [ "$commits_to_fetch" -gt "$fetch_limit" ]
then
printf '%s\n' "Already fetched over $fetch_limit commits" \
'Giving up on trying to find merge-base' >&2
exit 1
fi
done
files_list "$( git merge-base "$base" HEAD^2 )..HEAD^2"
elif [ -n "$GIT_LOCAL_BASE_REF" ]
then
files_list "$GIT_LOCAL_BASE_REF..HEAD"
else
echo 'Neither $TRAVIS nor $GITHUB_BASE_REF was defined' >&2
exit 1
fi
|
