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Update to use GitHub's environment files #45

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merged 1 commit into from
Oct 19, 2022
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Update to use GitHub's environment files #45

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24 changes: 23 additions & 1 deletion src/Download.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,11 @@
* LICENSE.txt file in the root directory of this source tree.
*/

import static java.nio.charset.StandardCharsets.UTF_8;
import static java.nio.file.StandardOpenOption.APPEND;
import static java.nio.file.StandardOpenOption.CREATE;
import static java.nio.file.StandardOpenOption.WRITE;

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
Expand Down Expand Up @@ -218,7 +223,24 @@ Optional<String> findRemoteChecksum(String checksum) throws Exception {
static class GitHub {
/** Sets an action's output parameter. */
static void setOutput(String name, Object value) {
System.out.printf("::set-output name=%s::%s%n", name, value);
if (name.isBlank() || value.toString().isBlank()) { // implicit null checks included
throw new IllegalArgumentException("name or value are blank: " + name + "=" + value);
}
var githubEnv = System.getenv("GITHUB_ENV");
if (githubEnv == null) {
throw new AssertionError("No such environment variable: GITHUB_ENV");
}
try {
var file = Path.of(githubEnv);
if (file.getParent() != null) Files.createDirectories(file.getParent());
var lines = (name + "=" + value).lines().toList();
if (lines.size() != 1) {
throw new UnsupportedOperationException("Multiline strings are no supported");
}
Files.write(file, lines, UTF_8, CREATE, APPEND, WRITE);
} catch (IOException exception) {
throw new UncheckedIOException(exception);
}
}

/** Creates a debug message and prints the message to the log. */
Expand Down