canic-backup 0.34.3

Manifest and orchestration primitives for Canic fleet backup and restore
Documentation 
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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129

use super::{
    RestoreApplyCommandPreview, RestoreApplyJournal, RestoreApplyJournalReport,
    constants::*,
    types::{RestoreRunnerConfig, RestoreRunnerError},
};

// Check whether execute mode has reached its requested operation batch size.
pub(super) fn restore_run_max_steps_reached(
    config: &RestoreRunnerConfig,
    executed_operation_count: usize,
    report: &RestoreApplyJournalReport,
) -> bool {
    config.max_steps == Some(executed_operation_count) && !report.complete
}

// Classify why the native runner stopped for operator summaries.
pub(super) const fn restore_run_stopped_reason(
    report: &RestoreApplyJournalReport,
    max_steps_reached: bool,
    executed: bool,
) -> &'static str {
    if report.complete {
        return RESTORE_RUN_STOPPED_COMPLETE;
    }
    if report.failed_operations > 0 {
        return RESTORE_RUN_STOPPED_COMMAND_FAILED;
    }
    if report.pending_operations > 0 {
        return RESTORE_RUN_STOPPED_PENDING;
    }
    if !report.ready || report.blocked_operations > 0 {
        return RESTORE_RUN_STOPPED_BLOCKED;
    }
    if max_steps_reached {
        return RESTORE_RUN_STOPPED_MAX_STEPS;
    }
    if executed {
        return RESTORE_RUN_STOPPED_READY;
    }
    RESTORE_RUN_STOPPED_PREVIEW
}

// Recommend the next operator action for the native runner summary.
pub(super) const fn restore_run_next_action(
    report: &RestoreApplyJournalReport,
    recovered_pending: bool,
) -> &'static str {
    if report.complete {
        return RESTORE_RUN_ACTION_DONE;
    }
    if report.failed_operations > 0 {
        return RESTORE_RUN_ACTION_INSPECT_FAILED;
    }
    if report.pending_operations > 0 {
        return RESTORE_RUN_ACTION_UNCLAIM_PENDING;
    }
    if !report.ready || report.blocked_operations > 0 {
        return RESTORE_RUN_ACTION_FIX_BLOCKED;
    }
    if recovered_pending {
        return RESTORE_RUN_ACTION_RERUN;
    }
    RESTORE_RUN_ACTION_RERUN
}

// Ensure the journal can be advanced by the native restore runner.
pub(super) fn enforce_restore_run_executable(
    journal: &RestoreApplyJournal,
    report: &RestoreApplyJournalReport,
) -> Result<(), RestoreRunnerError> {
    if report.pending_operations > 0 {
        return Err(RestoreRunnerError::Pending {
            backup_id: report.backup_id.clone(),
            pending_operations: report.pending_operations,
            next_transition_sequence: report
                .next_transition
                .as_ref()
                .map(|operation| operation.sequence),
        });
    }

    if report.failed_operations > 0 {
        return Err(RestoreRunnerError::Failed {
            backup_id: report.backup_id.clone(),
            failed_operations: report.failed_operations,
        });
    }

    if report.ready {
        return Ok(());
    }

    Err(RestoreRunnerError::NotReady {
        backup_id: journal.backup_id.clone(),
        reasons: report.blocked_reasons.clone(),
    })
}

// Convert an unavailable native runner command into the shared fail-closed error.
pub(super) fn enforce_restore_run_command_available(
    preview: &RestoreApplyCommandPreview,
) -> Result<(), RestoreRunnerError> {
    if preview.command_available {
        return Ok(());
    }

    Err(restore_command_unavailable_error(preview))
}

// Build a shared command-unavailable error from a preview.
pub(super) fn restore_command_unavailable_error(
    preview: &RestoreApplyCommandPreview,
) -> RestoreRunnerError {
    RestoreRunnerError::CommandUnavailable {
        backup_id: preview.backup_id.clone(),
        operation_available: preview.operation_available,
        complete: preview.complete,
        blocked_reasons: preview.blocked_reasons.clone(),
    }
}

// Extract the uploaded target snapshot ID from command output.
pub fn parse_uploaded_snapshot_id(output: &str) -> Option<String> {
    output
        .lines()
        .filter_map(|line| line.split_once(':').map(|(_, value)| value.trim()))
        .find(|value| !value.is_empty())
        .map(str::to_string)
}