feat(php): add ScriptTrigger and CommandsTrigger

AGENTS.md

@@ -130,7 +130,9 @@ This is a **multi-module** plugin with 19 submodules:
 **plugin-script-php:**
 
 - `io.kestra.plugin.scripts.php.Commands`
+- `io.kestra.plugin.scripts.php.CommandsTrigger`
 - `io.kestra.plugin.scripts.php.Script`
+- `io.kestra.plugin.scripts.php.ScriptTrigger`
 
 **plugin-script-powershell:**
 

plugin-script-php/src/main/java/io/kestra/plugin/scripts/php/CommandsTrigger.java

@@ -0,0 +1,280 @@
+package io.kestra.plugin.scripts.php;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import io.kestra.core.exceptions.IllegalVariableEvaluationException;
+import io.kestra.core.models.annotations.Example;
+import io.kestra.core.models.annotations.Plugin;
+import io.kestra.core.models.annotations.PluginProperty;
+import io.kestra.core.models.conditions.ConditionContext;
+import io.kestra.core.models.executions.Execution;
+import io.kestra.core.models.property.Property;
+import io.kestra.core.models.tasks.RunnableTaskException;
+import io.kestra.core.models.tasks.runners.TaskException;
+import io.kestra.core.models.triggers.AbstractTrigger;
+import io.kestra.core.models.triggers.PollingTriggerInterface;
+import io.kestra.core.models.triggers.TriggerContext;
+import io.kestra.core.models.triggers.TriggerOutput;
+import io.kestra.core.models.triggers.TriggerService;
+import io.kestra.core.runners.RunContext;
+import io.kestra.core.storages.kv.KVStore;
+import io.kestra.core.storages.kv.KVValueAndMetadata;
+import io.kestra.plugin.scripts.exec.ExitConditionRegex;
+import io.kestra.plugin.scripts.exec.TriggerRunContext;
+import io.kestra.plugin.scripts.exec.scripts.models.ScriptOutput;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import lombok.experimental.SuperBuilder;
+
+@SuperBuilder
+@ToString
+@EqualsAndHashCode
+@Getter
+@NoArgsConstructor
+@Schema(
+    title = "Trigger a flow when PHP commands match a condition",
+    description = """
+        Polls by running PHP commands in a script container (default image php) and emits when exitCondition matches. \
+        Edge mode (the default) emits only on a transition from not matching to matching, remembering the previous result in the namespace KV store. \
+        Polls every 60s by default. Accepts 'exit N' or a regex (fallback substring) matched against emitted vars; a failed run has no vars, so only 'exit N' can match a failure. \
+        Only containerImage, commands, interval, edge, and exitCondition are configurable here; the Commands task's taskRunner, env, beforeCommands, inputFiles, and namespaceFiles are not exposed on this trigger.
+        """
+)
+@Plugin(
+    examples = {
+        @Example(
+            title = "Trigger when commands fail with an implicit error (exit 1).",
+            full = true,
+            code = """
+                id: php_commands_trigger
+                namespace: company.team
+
+                triggers:
+                  - id: commands_failure
+                    type: io.kestra.plugin.scripts.php.CommandsTrigger
+                    interval: PT60S
+                    exitCondition: "exit 1"
+                    edge: true
+                    containerImage: php
+                    commands:
+                      - php -r 'exit(1);'
+
+                tasks:
+                  - id: log
+                    type: io.kestra.plugin.core.log.Log
+                    message: "Triggered with exitCode={{ trigger.exitCode }} (condition={{ trigger.condition }})"
+                """
+        )
+    }
+)
+public class CommandsTrigger extends AbstractTrigger
+    implements PollingTriggerInterface, TriggerOutput<CommandsTrigger.Output> {
+
+    private static final String DEFAULT_IMAGE = "php";
+    private static final Pattern EXIT_CONDITION_PATTERN = Pattern.compile("^\\s*exit\\s+(\\d+)\\s*$", Pattern.CASE_INSENSITIVE);
+
+    @Schema(
+        title = "Docker image used to execute the commands",
+        description = """
+            Container image used by the underlying Commands task to run PHP commands.
+            Defaults to 'php'.
+            """
+    )
+    @Builder.Default
+    @PluginProperty(group = "execution")
+    protected Property<String> containerImage = Property.ofValue(DEFAULT_IMAGE);
+
+    @Schema(
+        title = "PHP commands to execute",
+        description = "Commands executed on each poll (same semantics as the PHP Commands task)."
+    )
+    @NotNull
+    @PluginProperty(group = "main")
+    protected Property<List<String>> commands;
+
+    @Schema(
+        title = "Condition to match",
+        description = """
+            Condition evaluated after each commands execution. The trigger emits an event only when this condition matches.
+
+            Supported forms:
+            - 'exit N' (example: 'exit 1'): matches when the process exit code equals N.
+            - Any other string: treated as a regex (or substring if regex is invalid) matched against the
+              task's 'vars' (when commands emit ::{"outputs":...}::). On a failed run no vars are available
+              to match against, so only an 'exit N' condition can match a failure.
+            """
+    )
+    @NotNull
+    @PluginProperty(group = "main")
+    protected Property<String> exitCondition;
+
+    @Schema(
+        title = "Check interval",
+        description = "Interval between polling evaluations."
+    )
+    @Builder.Default
+    @PluginProperty(group = "execution")
+    private final Duration interval = Duration.ofSeconds(60);
+
+    @Schema(
+        title = "Edge trigger mode",
+        description = """
+            If true (default), the trigger emits only on a transition from 'not matching' to 'matching' \
+            (anti-spam). The previous result is kept in the namespace KV store, keyed by flow and trigger id. \
+            If false, the trigger emits on every poll where the condition matches.
+            """
+    )
+    @Builder.Default
+    @PluginProperty(group = "advanced")
+    protected Property<Boolean> edge = Property.ofValue(true);
+
+    @Override
+    public Optional<Execution> evaluate(ConditionContext conditionContext, TriggerContext context) throws Exception {
+        RunContext runContext = conditionContext.getRunContext();
+        boolean renderedEdge = runContext.render(this.edge).as(Boolean.class).orElse(true);
+        String renderedExitCondition = renderExitCondition(runContext);
+        Output out = runOnce(runContext, renderedExitCondition);
+
+        boolean matched = matchesCondition(out);
+
+        boolean emit = shouldEmit(runContext, context, renderedEdge, matched);
+
+        if (!emit) {
+            return Optional.empty();
+        }
+
+        return Optional.of(TriggerService.generateExecution(this, conditionContext, context, out));
+    }
+
+    boolean shouldEmit(RunContext runContext, TriggerContext context, boolean edge, boolean matched) throws Exception {
+        if (!edge) {
+            return matched;
+        }
+
+        KVStore kvStore = runContext.namespaceKv(context.getNamespace());
+        String key = edgeStateKey(context);
+
+        boolean previouslyMatched = kvStore.getValue(key)
+            .map(value -> Boolean.parseBoolean(String.valueOf(value.value())))
+            .orElse(false);
+
+        if (matched != previouslyMatched) {
+            kvStore.put(key, new KVValueAndMetadata(null, matched));
+        }
+
+        return matched && !previouslyMatched;
+    }
+
+    static String edgeStateKey(TriggerContext context) {
+        return "trigger-edge-" + context.getFlowId().length() + "-" + context.getFlowId() + "-" + context.getTriggerId();
+    }
+
+    private String renderExitCondition(RunContext runContext) throws IllegalVariableEvaluationException {
+        return ScriptTrigger.renderExitCondition(runContext, this.exitCondition);
+    }
+
+    private Output runOnce(RunContext runContext, String renderedExitCondition) throws Exception {
+        Commands task = Commands.builder()
+            .id(this.getId())
+            .type(Commands.class.getName())
+            .containerImage(this.containerImage)
+            .commands(this.commands)
+            .build();
+
+        try {
+            ScriptOutput taskOutput = task.run(TriggerRunContext.forEmbeddedTask(runContext, task));
+
+            return new Output(Instant.now(), renderedExitCondition, taskOutput.getExitCode(), taskOutput.getVars());
+        } catch (RunnableTaskException e) {
+            ExtractedFailure failure = extractFailure(e);
+            return new Output(Instant.now(), renderedExitCondition, failure.exitCode, null);
+        }
+    }
+
+    boolean matchesCondition(Output out) {
+        String cond = out.getCondition() == null ? "" : out.getCondition().trim();
+
+        Matcher exitMatcher = EXIT_CONDITION_PATTERN.matcher(cond);
+        if (exitMatcher.matches()) {
+            try {
+                long expected = Long.parseLong(exitMatcher.group(1));
+                return out.getExitCode() != null && out.getExitCode() == expected;
+            } catch (NumberFormatException e) {
+                return false;
+            }
+        }
+
+        String haystack = buildHaystack(out);
+        if (haystack.isEmpty() || cond.isEmpty()) {
+            return false;
+        }
+
+        return ExitConditionRegex.find(cond, haystack);
+    }
+
+    private String buildHaystack(Output out) {
+        if (out.getVars() == null || out.getVars().isEmpty()) {
+            return "";
+        }
+        return out.getVars().toString();
+    }
+
+    private record ExtractedFailure(Integer exitCode) {
+    }
+
+    private ExtractedFailure extractFailure(RunnableTaskException e) {
+        Integer exitCode = null;
+
+        Throwable cur = e.getCause();
+        while (cur != null) {
+            if (cur instanceof TaskException te) {
+                exitCode = te.getExitCode();
+                break;
+            }
+            cur = cur.getCause();
+        }
+
+        return new ExtractedFailure(exitCode);
+    }
+
+    @Data
+    @AllArgsConstructor
+    public static class Output implements io.kestra.core.models.tasks.Output {
+        @Schema(title = "Timestamp of the event that fired the trigger")
+        private Instant timestamp;
+
+        @Schema(
+            title = "Rendered condition",
+            description = "Rendered value of the exitCondition property for this poll."
+        )
+        private String condition;
+
+        @Schema(
+            title = "Commands exit code",
+            description = "Exit code returned by the PHP process (may be null if not available)."
+        )
+        private Integer exitCode;
+
+        @Schema(
+            title = "Commands vars",
+            description = """
+                Vars produced by the task (e.g. via ::{"outputs":{...}}:: convention). May contain sensitive values \
+                from command output; treat trigger payloads accordingly.
+                """
+        )
+        private Map<String, Object> vars;
+    }
+}