161 lines
4.0 KiB
Bash
Executable File
161 lines
4.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# assert_ref_unmoved ensures that the previous and current SHA1 of a given ref
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# is equal by string comparison:
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#
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# assert_ref_unmoved "HEAD" "$previous_sha" "$current_sha"
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#
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# If the two are unequal (the ref has moved), a message is printed to stderr and
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# the program exits.
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assert_ref_unmoved() {
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local name="$1"
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local prev_sha="$2"
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local current_sha="$3"
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if [ "$prev_sha" != "$current_sha" ]; then
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echo >&2 "$name should not have moved (from: $prev_sha, to: $current_sha)"
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exit 1
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fi
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}
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# setup_single_remote_branch creates a repository as follows:
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#
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# B
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# / \
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# A refs/heads/my-feature
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# \
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# refs/heads/master
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#
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# - Commit 'A' has 120, 140 bytes of data in a.txt, and a.md, respectively.
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#
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# - Commit 'B' has 30 bytes of data in a.txt, and includes commit 'A' as a
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# parent.
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setup_multiple_local_branches() {
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set -e
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reponame="migrate-info-multiple-local-branches"
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remove_and_create_local_repo "$reponame"
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base64 < /dev/urandom | head -c 120 > a.txt
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base64 < /dev/urandom | head -c 140 > a.md
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git add a.txt a.md
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git commit -m "initial commit"
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git checkout -b my-feature
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base64 < /dev/urandom | head -c 30 > a.md
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git add a.md
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git commit -m "add an additional 30 bytes to a.md"
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git checkout master
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}
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# setup_single_remote_branch creates a repository as follows:
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#
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# A---B
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# \ \
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# \ refs/heads/master
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# \
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# refs/remotes/origin/master
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#
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# - Commit 'A' has 120, 140 bytes of data in a.txt, and a.md, respectively. It
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# is the latest commit pushed to the remote 'origin'.
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#
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# - Commit 'B' has 30, 50 bytes of data in a.txt, and a.md, respectively.
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setup_single_remote_branch() {
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set -e
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reponame="migrate-info-single-remote-branch"
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remove_and_create_remote_repo "$reponame"
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base64 < /dev/urandom | head -c 120 > a.txt
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base64 < /dev/urandom | head -c 140 > a.md
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git add a.txt a.md
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git commit -m "initial commit"
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git push origin master
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base64 < /dev/urandom | head -c 30 > a.txt
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base64 < /dev/urandom | head -c 50 > a.md
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git add a.md a.txt
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git commit -m "add an additional 30, 50 bytes to a.{txt,md}"
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}
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# setup_multiple_remote_branches creates a repository as follows:
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#
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# C
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# / \
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# A---B refs/heads/my-feature
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# \ \
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# \ refs/heads/master
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# \
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# refs/remotes/origin/master
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#
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# - Commit 'A' has 10, 11 bytes of data in a.txt, and a.md, respectively. It is
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# the latest commit pushed to the remote 'origin'.
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#
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# - Commit 'B' has 20, 21 bytes of data in a.txt, and a.md, respectively.
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#
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# - Commit 'C' has 30, 31 bytes of data in a.txt, and a.md, respectively. It is
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# the latest commit on refs/heads/my-feature.
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setup_multiple_remote_branches() {
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set -e
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reponame="migrate-info-exclude-remote-refs-given-branch"
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remove_and_create_remote_repo "$reponame"
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base64 < /dev/urandom | head -c 10 > a.txt
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base64 < /dev/urandom | head -c 11 > a.md
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git add a.txt a.md
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git commit -m "add 10, 11 bytes, a.{txt,md}"
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git push origin master
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base64 < /dev/urandom | head -c 20 > a.txt
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base64 < /dev/urandom | head -c 21 > a.md
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git add a.txt a.md
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git commit -m "add 20, 21 bytes, a.{txt,md}"
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git checkout -b my-feature
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base64 < /dev/urandom | head -c 30 > a.txt
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base64 < /dev/urandom | head -c 31 > a.md
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git add a.txt a.md
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git commit -m "add 30, 31 bytes, a.{txt,md}"
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git checkout master
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}
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# remove_and_create_local_repo removes, creates, and checks out a local
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# repository given by a particular name:
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#
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# remove_and_create_local_repo "$reponame"
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remove_and_create_local_repo() {
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local reponame="$1"
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rm -rf "$reponame" || true
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git init "$reponame"
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cd "$reponame"
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}
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# remove_and_create_remote_repo removes, creates, and checks out a remote
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# repository both locally and on the gitserver, given by a particular name:
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#
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# remove_and_create_remote_repo "$reponame"
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remove_and_create_remote_repo() {
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local reponame="$1"
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rm -rf "$reponame" "$REMOTEDIR/$reponame.git" || true
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setup_remote_repo "$reponame"
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clone_repo "$reponame" "$reponame"
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}
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