riir

tests/git_clone_fix.rs

@@ -0,0 +1,78 @@
+use inshellah::parsers::help::help_parser;
+
+#[test]
+fn parser_recovers_past_no_bracket_long_form() {
+    // git clone -h produces lines like `--[no-]progress` that switch_parser
+    // can't parse. previously the help parser got stuck on these because
+    // skip_non_option_line refused to skip option-looking lines. now it falls
+    // through to skip, letting the parser continue to the next real entry.
+    let text = r#"usage: git clone [<options>] [--] <repo> [<dir>]
+
+    -v, --[no-]verbose    be more verbose
+    -q, --[no-]quiet      be more quiet
+    --[no-]progress       force progress reporting
+    --[no-]reject-shallow don't clone shallow repository
+    -n, --no-checkout     don't create a checkout
+    --checkout            opposite of --no-checkout
+    -s, --[no-]shared     setup as shared repository
+"#;
+    let (_, r) = help_parser(text).expect("parse");
+    // before the fix: only 2 entries (-v, -q) before the parser got stuck.
+    // after: -v, -q, -n/--no-checkout, --checkout, -s, plus any others.
+    assert!(
+        r.entries.len() >= 4,
+        "expected ≥4 entries, got {}",
+        r.entries.len()
+    );
+    assert!(
+        r.entries.iter().any(|e| {
+            matches!(
+                &e.switch,
+                inshellah::types::Switch::Both('v', l) if *l == "verbose"
+            )
+        }),
+        "expected -v/--verbose from --[no-]verbose, got {:?}",
+        r.entries.len()
+    );
+}
+
+#[test]
+fn parser_keeps_negatable_params() {
+    let text = r#"usage: git clone [<options>] [--] <repo> [<dir>]
+
+    -j, --[no-]jobs <n>   number of submodules cloned in parallel
+    --[no-]recurse-submodules[=<pathspec>]
+                          initialize submodules in the clone
+    --[no-]reject-shallow don't clone shallow repository
+"#;
+    let (_, r) = help_parser(text).expect("parse");
+    let jobs = r
+        .entries
+        .iter()
+        .find(|e| matches!(&e.switch, inshellah::types::Switch::Both('j', l) if *l == "jobs"))
+        .expect("jobs entry");
+    assert!(matches!(
+        &jobs.param,
+        Some(inshellah::types::Param::Mandatory("n"))
+    ));
+
+    let recurse = r
+        .entries
+        .iter()
+        .find(|e| matches!(&e.switch, inshellah::types::Switch::Long(l) if *l == "recurse-submodules"))
+        .expect("recurse-submodules entry");
+    assert!(matches!(
+        &recurse.param,
+        Some(inshellah::types::Param::Optional("pathspec"))
+    ));
+
+    let reject = r
+        .entries
+        .iter()
+        .find(|e| matches!(&e.switch, inshellah::types::Switch::Long(l) if *l == "reject-shallow"))
+        .expect("reject-shallow entry");
+    assert!(
+        reject.param.is_none(),
+        "reject-shallow should not parse prose as a param"
+    );
+}

tests/manpage_cli.rs

@@ -0,0 +1,150 @@
+use std::fs;
+use std::process::Command;
+use std::time::{SystemTime, UNIX_EPOCH};
+
+fn unique_temp_dir(name: &str) -> std::path::PathBuf {
+    let nanos = SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .expect("system time")
+        .as_nanos();
+    std::env::temp_dir().join(format!("{name}-{}-{nanos}", std::process::id()))
+}
+
+#[test]
+fn manpage_command_uses_synopsis_name() {
+    let root = unique_temp_dir("inshellah-manpage-cli");
+    fs::create_dir_all(&root).expect("temp dir");
+    let manpage = root.join("btrfs-check.8");
+    fs::write(
+        &manpage,
+        r#".SH SYNOPSIS
+btrfs check [options] <device>
+.SH OPTIONS
+.TP
+\fB\-\-repair\fR
+try to repair the filesystem
+"#,
+    )
+    .expect("write manpage");
+
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("manpage")
+        .arg(&manpage)
+        .output()
+        .expect("run inshellah manpage");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    assert!(
+        stdout.contains("export extern \"btrfs check\""),
+        "stdout = {stdout}"
+    );
+    assert!(
+        !stdout.contains("export extern \"btrfs-check\""),
+        "stdout = {stdout}"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}
+
+#[test]
+fn manpage_command_strips_git_style_subcommand_prefixes() {
+    let root = unique_temp_dir("inshellah-manpage-cli");
+    fs::create_dir_all(&root).expect("temp dir");
+    let manpage = root.join("git.1");
+    fs::write(
+        &manpage,
+        r#".SH SYNOPSIS
+git [--version] [--help] <command> [<args>]
+.SH OPTIONS
+.TP
+\fB\-\-version\fR
+show version
+.SH "GIT COMMANDS"
+.SS "Main porcelain commands"
+.PP
+.BR git-add (1)
+.RS 4
+Add file contents to the index.
+.RE
+"#,
+    )
+    .expect("write manpage");
+
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("manpage")
+        .arg(&manpage)
+        .output()
+        .expect("run inshellah manpage");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    assert!(
+        stdout.contains("export extern \"git add\""),
+        "stdout = {stdout}"
+    );
+    assert!(
+        !stdout.contains("export extern \"git git-add\""),
+        "stdout = {stdout}"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}
+
+#[test]
+fn manpage_command_falls_back_when_synopsis_starts_with_prose() {
+    let root = unique_temp_dir("inshellah-manpage-cli");
+    fs::create_dir_all(&root).expect("temp dir");
+    let manpage = root.join("ld.so.8");
+    fs::write(
+        &manpage,
+        r#".SH SYNOPSIS
+The dynamic linker can be run either indirectly by running some
+dynamically linked program or shared object
+(in which case no command-line options
+to the dynamic linker can be passed and, in the ELF case, the dynamic linker
+which is stored in the
+.B .interp
+section of the program is executed) or directly by running:
+.P
+.I /lib/ld\-linux.so.*
+[OPTIONS] [PROGRAM [ARGUMENTS]]
+.SH OPTIONS
+.TP
+.BI \-\-argv0\~ string
+Set argv[0] to the value string.
+"#,
+    )
+    .expect("write manpage");
+
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("manpage")
+        .arg(&manpage)
+        .output()
+        .expect("run inshellah manpage");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    assert!(
+        stdout.contains("export extern \"ld.so\""),
+        "stdout = {stdout}"
+    );
+    assert!(
+        !stdout.contains("export extern \"The\""),
+        "stdout = {stdout}"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}

tests/nushell-completer.nu

@@ -0,0 +1,128 @@
+def fail [msg: string] {
+    error make {msg: $msg}
+}
+
+def assert-eq [actual expected msg: string] {
+    if $actual != $expected {
+        fail $"($msg): expected ($expected | to nuon), got ($actual | to nuon)"
+    }
+}
+
+def assert-contains [items needle msg: string] {
+    if not ($needle in $items) {
+        fail $"($msg): expected ($items | to nuon) to contain ($needle | to nuon)"
+    }
+}
+
+def values [items] {
+    $items | default [] | get value
+}
+
+let completer = $env.config.completions.external.completer
+
+def _assert_elevation_wrappers_accept_command_tails [p: path] {
+    sudo nix-env --set -p /nix/var/nix/profiles/system $p
+    doas nix-env --set -p /nix/var/nix/profiles/system $p
+}
+
+'[{"value":"--static","description":"from static cache"}]' | save --force $env.INSHELLAH_STATIC_FILE
+let static_result = do $completer [demo ""]
+assert-eq ($static_result | get 0.value) "--static" "static completion pass-through"
+'[{"value":"--server","description":"from static cache"},{"value":"--preserve","description":"from static cache"}]' | save --force $env.INSHELLAH_STATIC_FILE
+let static_fuzzy_result = do $completer [demo ser]
+assert-eq (values $static_fuzzy_result) ['--server' '--preserve'] "static fuzzy completions are not refiltered by shim"
+
+"{" | save --force $env.INSHELLAH_STATIC_FILE
+let bad_static_result = do $completer [demo ""]
+assert-eq $bad_static_result null "bad static JSON falls back cleanly"
+"" | save --force $env.INSHELLAH_STATIC_FILE
+
+assert-eq (do $completer [nix]) null "nix completion ignores too-short spans"
+let nix_commands = do $completer [nix ""]
+assert-eq ($nix_commands | get 0.value) "build" "nix command completion uses NIX_GET_COMPLETIONS"
+let nix_pkg = do $completer [nix "flake#pkg"]
+assert-eq ($nix_pkg | get 0.description) "raw package description" "nix descriptions are raw strings"
+
+let systemctl_empty = do $completer [systemctl daemon-reload ""]
+assert-eq $systemctl_empty null "systemctl does not offer units for non-unit verbs"
+let systemctl_units = do $completer [systemctl status ""]
+assert-eq ($systemctl_units | get 0.value) "demo.service" "systemctl offers units for unit verbs"
+let systemctl_prefixed_units = do $completer [systemctl start g]
+assert-eq ($systemctl_prefixed_units | get 0.value) "greetd.service" "systemctl unit completions accept typed prefixes"
+
+let kubectl_pods = do $completer [kubectl get pods -n prod ""]
+assert-eq ($kubectl_pods | get 0.value) "pod-a" "kubectl resource names complete"
+assert-eq (open $env.KUBECTL_ARGS_FILE | str contains "-n prod") true "kubectl preserves namespace flags"
+let kubectl_rollout = do $completer [kubectl rollout status deployment ""]
+assert-eq ($kubectl_rollout | get 0.description) "deployment" "kubectl rollout uses resource kind, not action"
+
+let cargo_packages = do $completer [cargo test -p ""]
+assert-eq (values $cargo_packages) [app-lib helper-lib] "cargo -p completes packages"
+let cargo_bins = do $completer [cargo run --bin ""]
+assert-eq (values $cargo_bins) [app-cli] "cargo --bin completes only bin targets"
+
+"[]" | save --force $env.INSHELLAH_STATIC_FILE
+let git_top = do $completer [git ""]
+assert-contains (values $git_top) "remote" "git top-level completes common commands"
+assert-contains (values $git_top) "stash" "git top-level includes stash"
+let git_push = do $completer [git push ""]
+assert-eq (values $git_push) [origin upstream] "empty static completions fall through to git remotes"
+let git_remote_verbs = do $completer [git remote ""]
+assert-eq (values $git_remote_verbs) [add rename remove rm set-head set-branches get-url set-url show prune update] "git remote completes subcommands"
+let git_remote_filtered = do $completer [git remote sho]
+assert-eq (values $git_remote_filtered) [show] "git remote subcommands filter by typed prefix"
+let git_remote_fuzzy = do $completer [git remote shw]
+assert-eq (values $git_remote_fuzzy) [show] "git remote subcommands use fuzzy filtering"
+let git_remote_exact = do $completer [git remote show]
+assert-eq $git_remote_exact null "exact dynamic completion disappears"
+let git_remote_show = do $completer [git remote show ""]
+assert-eq (values $git_remote_show) [origin upstream] "git remote show completes remote names"
+let git_fetch = do $completer [git fetch ""]
+assert-eq (values $git_fetch) [origin upstream] "git fetch completes remotes"
+let git_fetch_ref = do $completer [git fetch origin ""]
+assert-contains (values $git_fetch_ref) "main" "git fetch after remote completes refs"
+let git_branch_delete = do $completer [git branch -d ""]
+assert-eq (values $git_branch_delete) [main feature] "git branch delete completes local branches"
+let git_tag_delete = do $completer [git tag -d ""]
+assert-eq (values $git_tag_delete) [v1.0 v2.0] "git tag delete completes tags"
+let git_stash_apply = do $completer [git stash apply ""]
+assert-eq (values $git_stash_apply) ['stash@{0}'] "git stash apply completes stashes"
+let git_submodule_update = do $completer [git submodule update ""]
+assert-eq (values $git_submodule_update) [deps/demo] "git submodule update completes submodule paths"
+let git_bisect = do $completer [git bisect ""]
+assert-contains (values $git_bisect) "good" "git bisect completes subcommands"
+let git_bisect_good = do $completer [git bisect good ""]
+assert-contains (values $git_bisect_good) "main" "git bisect good completes refs"
+let git_add_paths = do $completer [git add ""]
+assert-eq (values $git_add_paths) [src/main.rs new-file.txt renamed.txt] "git add completes changed paths"
+let git_rm_paths = do $completer [git rm ""]
+assert-eq (values $git_rm_paths) [src/main.rs README.md] "git rm completes tracked paths"
+"" | save --force $env.INSHELLAH_STATIC_FILE
+let git_worktree_add = do $completer [git worktree add ""]
+assert-eq $git_worktree_add null "git worktree add first argument falls back to files"
+let git_worktree_remove = do $completer [git worktree remove ""]
+assert-eq ($git_worktree_remove | get 0.value) "/repo/linked" "git worktree remove completes existing worktrees"
+
+"[]" | save --force $env.INSHELLAH_STATIC_FILE
+let jj_top = do $completer [jj ""]
+assert-contains (values $jj_top) "bookmark" "jj top-level completes common commands"
+assert-contains (values $jj_top) "git" "jj top-level includes git command"
+let jj_bookmarks = do $completer [jj bookmark delete ""]
+assert-eq (values $jj_bookmarks) [main feature origin/main] "jj bookmark delete completes bookmarks"
+let jj_tags = do $completer [jj tag delete ""]
+assert-eq (values $jj_tags) [v1.0 v2.0] "jj tag delete completes tags"
+let jj_git_fetch = do $completer [jj git fetch ""]
+assert-eq (values $jj_git_fetch) [origin upstream] "jj git fetch completes remotes"
+let jj_git_remote_verbs = do $completer [jj git remote ""]
+assert-eq (values $jj_git_remote_verbs) [add list remove rename set-url] "jj git remote completes subcommands"
+let jj_git_remote_remove = do $completer [jj git remote remove ""]
+assert-eq (values $jj_git_remote_remove) [origin upstream] "jj git remote remove completes remotes"
+let jj_revs = do $completer [jj rebase -d ""]
+assert-eq (values $jj_revs) [k m] "jj revision flags complete revisions"
+let jj_ops = do $completer [jj op restore ""]
+assert-eq (values $jj_ops) [abc123] "jj op restore completes operations"
+let jj_files = do $completer [jj file show ""]
+assert-eq (values $jj_files) [src/main.rs README.md] "jj file show completes repo files"
+let jj_workspaces = do $completer [jj workspace forget ""]
+assert-eq (values $jj_workspaces) [default linked] "jj workspace forget completes workspaces"
+"" | save --force $env.INSHELLAH_STATIC_FILE

tests/ports.rs

@@ -0,0 +1,915 @@
+//! Tests ported from ../inshellah/test/test_inshellah.ml.
+//!
+//! Covers the help parser, manpage parser, groff stripping, and nushell
+//! generation. The single .nu store parser test (`test_nu_file_parsing`) is
+//! not included — it requires porting store.ml first.
+
+use inshellah::parsers::help::help_parser;
+use inshellah::parsers::manpage::{
+    ManpageResult, OwnedParam, OwnedSwitch, extract_synopsis_command, parse_manpage_string,
+    strip_groff_escapes,
+};
+use inshellah::parsers::nushell::{generate_extern, generate_module};
+use inshellah::store::{json_of_result, parse_nu_completions, result_from_json};
+use inshellah::types::{HelpResult, Param, Switch};
+
+fn parse(txt: &str) -> HelpResult<'_> {
+    match help_parser(txt) {
+        Ok((_, r)) => r,
+        Err(e) => panic!("parse_help failed: {e:?}"),
+    }
+}
+
+// --- Help parser tests ---
+
+#[test]
+fn gnu_basic() {
+    let r = parse("  -a, --all                  do not ignore entries starting with .\n");
+    assert_eq!(r.entries.len(), 1);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Both('a', l) if *l == "all"));
+    assert!(e.param.is_none());
+    assert!(!e.desc.is_empty());
+}
+
+#[test]
+fn gnu_eq_param() {
+    let r = parse("      --block-size=SIZE      scale sizes by SIZE\n");
+    assert_eq!(r.entries.len(), 1);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Long(l) if *l == "block-size"));
+    assert!(matches!(&e.param, Some(Param::Mandatory(p)) if *p == "SIZE"));
+}
+
+#[test]
+fn gnu_opt_param() {
+    let r = parse("      --color[=WHEN]         color the output WHEN\n");
+    assert_eq!(r.entries.len(), 1);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Long(l) if *l == "color"));
+    assert!(matches!(&e.param, Some(Param::Optional(p)) if *p == "WHEN"));
+}
+
+#[test]
+fn underscore_param() {
+    let r = parse("      --time-style=TIME_STYLE  time/date format\n");
+    assert_eq!(r.entries.len(), 1);
+    let e = &r.entries[0];
+    assert!(matches!(&e.param, Some(Param::Mandatory(p)) if *p == "TIME_STYLE"));
+}
+
+#[test]
+fn short_only() {
+    let r = parse("  -v                       verbose output\n");
+    assert_eq!(r.entries.len(), 1);
+    assert!(matches!(r.entries[0].switch, Switch::Short('v')));
+}
+
+#[test]
+fn long_only() {
+    let r = parse("      --help                 display help\n");
+    assert_eq!(r.entries.len(), 1);
+    assert!(matches!(&r.entries[0].switch, Switch::Long(l) if *l == "help"));
+}
+
+#[test]
+fn multiline_desc() {
+    let txt = "      --block-size=SIZE      with -l, scale sizes by SIZE when printing them;\n                               e.g., '--block-size=M'; see SIZE format below\n";
+    let r = parse(txt);
+    assert_eq!(r.entries.len(), 1);
+    let combined: String = r.entries[0].desc.join(" ");
+    assert!(combined.len() > 50, "desc was: {combined}");
+}
+
+#[test]
+fn multiple_entries() {
+    let txt = "  -a, --all                  do not ignore entries starting with .\n  -A, --almost-all           do not list implied . and ..\n      --author               with -l, print the author of each file\n";
+    let r = parse(txt);
+    assert_eq!(r.entries.len(), 3);
+}
+
+#[test]
+fn clap_short_sections() {
+    let txt = "INPUT OPTIONS:\n  -e, --regexp=PATTERN       A pattern to search for.\n  -f, --file=PATTERNFILE     Search for patterns from the given file.\nSEARCH OPTIONS:\n  -s, --case-sensitive       Search case sensitively.\n";
+    let r = parse(txt);
+    assert_eq!(r.entries.len(), 3);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Both('e', l) if *l == "regexp"));
+    assert!(matches!(&e.param, Some(Param::Mandatory(p)) if *p == "PATTERN"));
+}
+
+#[test]
+fn clap_long_style() {
+    let txt = "  -H, --hidden\n          Include hidden directories and files.\n\n      --no-ignore\n          Do not respect ignore files.\n";
+    let r = parse(txt);
+    assert_eq!(r.entries.len(), 2);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Both('H', l) if *l == "hidden"));
+    assert!(!e.desc.is_empty());
+}
+
+#[test]
+fn clap_long_angle_param() {
+    let txt = "      --nonprintable-notation <notation>\n          Set notation for non-printable characters.\n";
+    let r = parse(txt);
+    assert_eq!(r.entries.len(), 1);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Long(l) if *l == "nonprintable-notation"));
+    assert!(matches!(&e.param, Some(Param::Mandatory(p)) if *p == "notation"));
+}
+
+#[test]
+fn space_upper_param() {
+    let r = parse("  -f, --foo FOO  foo help\n");
+    assert_eq!(r.entries.len(), 1);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Both('f', l) if *l == "foo"));
+    assert!(matches!(&e.param, Some(Param::Mandatory(p)) if *p == "FOO"));
+}
+
+#[test]
+fn go_cobra_flags() {
+    let txt = "Flags:\n  -D, --debug              Enable debug mode\n  -H, --host string        Daemon socket to connect to\n  -v, --version            Print version information\n";
+    let r = parse(txt);
+    assert_eq!(r.entries.len(), 3);
+    let host = &r.entries[1];
+    assert!(matches!(&host.switch, Switch::Both('H', l) if *l == "host"));
+    assert!(matches!(&host.param, Some(Param::Mandatory(p)) if *p == "string"));
+}
+
+#[test]
+fn go_cobra_subcommands() {
+    let txt = "Common Commands:\n  run         Create and run a new container from an image\n  exec        Execute a command in a running container\n  build       Build an image from a Dockerfile\n";
+    let r = parse(txt);
+    assert!(
+        !r.subcommands.is_empty(),
+        "expected subcommands, got: {:?}",
+        r.subcommands.len()
+    );
+}
+
+#[test]
+fn help_parser_ignores_value_enums_and_defaults() {
+    let txt = r#"Usage: tar [OPTION...] [FILE]...
+
+ Main operation mode:
+  -c, --create               create a new archive
+
+ Archive format selection:
+
+  -H, --format=FORMAT        create archive of the given format
+
+ FORMAT is one of the following:
+    gnu                      GNU tar 1.13.x format
+    oldgnu                   GNU format as per tar <= 1.12
+    pax                      POSIX 1003.1-2001 (pax) format
+    posix                    same as pax
+    ustar                    POSIX 1003.1-1988 (ustar) format
+    v7                       old V7 tar format
+
+*This* tar defaults to:
+--format=gnu -f- -b20 --quoting-style=escape
+--rmt-command=/nix/store/example/libexec/rmt
+"#;
+    let r = parse(txt);
+    assert!(
+        r.subcommands.is_empty(),
+        "enum values became subcommands: {:?}",
+        r.subcommands.len()
+    );
+    assert!(
+        !r.entries
+            .iter()
+            .any(|e| matches!(&e.switch, Switch::Long(l) if *l == "rmt-command")),
+        "default lines should not become flags"
+    );
+    assert!(
+        r.entries
+            .iter()
+            .any(|e| matches!(&e.switch, Switch::Both('H', l) if *l == "format")),
+        "real option should still be parsed"
+    );
+}
+
+#[test]
+fn busybox_tab() {
+    let r = parse("\t-1\tOne column output\n\t-a\tInclude names starting with .\n");
+    assert_eq!(r.entries.len(), 2);
+    assert!(matches!(r.entries[0].switch, Switch::Short('1')));
+}
+
+#[test]
+fn no_debug_prints() {
+    // the old ocaml parser had print_endline at module load time; this test
+    // documents that no such side effects exist in the rust port.
+    let _ = parse("  -v  verbose\n");
+}
+
+#[test]
+fn slash_switch_separator() {
+    let r = parse("  --verbose / -v             Increase verbosity\n");
+    assert_eq!(r.entries.len(), 1);
+    let e = &r.entries[0];
+    assert!(matches!(&e.switch, Switch::Both('v', l) if *l == "verbose"));
+    assert!(e.param.is_none());
+    let combined: String = e.desc.join(" ");
+    assert_eq!(combined.trim(), "Increase verbosity");
+}
+
+// --- Manpage parser tests ---
+
+#[test]
+fn manpage_tp_style() {
+    let groff = r#".SH OPTIONS
+.TP
+\fB\-a\fR, \fB\-\-all\fR
+do not ignore entries starting with .
+.TP
+\fB\-A\fR, \fB\-\-almost\-all\fR
+do not list implied . and ..
+.TP
+\fB\-\-block\-size\fR=\fISIZE\fR
+with \fB\-l\fR, scale sizes by SIZE
+.SH AUTHOR
+Written by someone.
+"#;
+    let r = parse_manpage_string(groff);
+    assert_eq!(r.entries.len(), 3, "entries: {:?}", r.entries);
+    assert!(matches!(&r.entries[0].switch, OwnedSwitch::Both('a', l) if l == "all"));
+    assert!(!r.entries[0].desc.is_empty());
+    assert!(matches!(&r.entries[2].switch, OwnedSwitch::Long(l) if l == "block-size"));
+    assert!(matches!(&r.entries[2].param, Some(OwnedParam::Mandatory(p)) if p == "SIZE"));
+}
+
+#[test]
+fn manpage_ip_style() {
+    let groff = r#".SH OPTIONS
+.IP "\fB\-k\fR, \fB\-\-insecure\fR"
+Allow insecure connections.
+.IP "\fB\-o\fR, \fB\-\-output\fR \fIfile\fR"
+Write output to file.
+.SH SEE ALSO
+"#;
+    let r = parse_manpage_string(groff);
+    assert_eq!(r.entries.len(), 2, "entries: {:?}", r.entries);
+    assert!(matches!(&r.entries[0].switch, OwnedSwitch::Both('k', l) if l == "insecure"));
+}
+
+#[test]
+fn manpage_groff_stripping() {
+    let s = strip_groff_escapes(r#"\fB\-\-color\fR[=\fIWHEN\fR]"#);
+    // font escapes removed
+    assert!(!(s.contains('f') && s.contains('B') && s.contains('\\')));
+    // dashes converted
+    assert!(s.contains('-'));
+    let s2 = strip_groff_escapes(r#"\(aqhello\(aq"#);
+    assert!(s2.contains('\''), "expected apostrophe in: {s2}");
+}
+
+#[test]
+fn manpage_getent_databases_from_description() {
+    let groff = r#".SH SYNOPSIS
+.SY getent
+.RI [ option \~.\|.\|.\&]
+.I database
+.IR key \~.\|.\|.
+.YS
+.SH DESCRIPTION
+The
+.I database
+may be any of those supported by the GNU C Library, listed below:
+.TP
+.B passwd
+When no
+.I key
+is provided, enumerate the passwd database.
+.TP
+.B services
+When no
+.I key
+is provided, enumerate the services database.
+.SH OPTIONS
+.TP
+.BI \-\-service\~ service
+.TQ
+.BI \-s\~ service
+Override all databases with the specified service.
+.TP
+.BI \-\-service\~ database : service
+.TQ
+.BI \-s\~ database : service
+Override only specified databases with the specified service.
+.TP
+.B \-\-usage
+Print a short usage summary and exit.
+"#;
+    let r = parse_manpage_string(groff);
+    let positional_names: Vec<&str> = r
+        .positionals
+        .iter()
+        .map(|(name, _)| name.as_str())
+        .collect();
+    assert_eq!(positional_names, vec!["database", "key"]);
+
+    let service = r
+        .entries
+        .iter()
+        .find(|e| matches!(&e.switch, OwnedSwitch::Both('s', name) if name == "service"))
+        .expect("expected --service(-s)");
+    assert!(matches!(
+        &service.param,
+        Some(OwnedParam::Mandatory(param)) if param == "service"
+    ));
+    assert!(
+        !r.entries
+            .iter()
+            .any(|e| matches!(&e.switch, OwnedSwitch::Long(name) if name == "serviceservice" || name == "servicedatabase")),
+        "entries: {:?}",
+        r.entries
+    );
+
+    let subcommands: Vec<&str> = r.subcommands.iter().map(|sc| sc.name.as_str()).collect();
+    assert!(
+        subcommands.contains(&"passwd"),
+        "subcommands: {subcommands:?}"
+    );
+    assert!(
+        subcommands.contains(&"services"),
+        "subcommands: {subcommands:?}"
+    );
+
+    let nu = generate_extern("getent", &r);
+    assert!(nu.contains("database: string"), "nu = {nu}");
+    assert!(nu.contains("...key: string"), "nu = {nu}");
+    assert!(nu.contains("--service(-s): string"), "nu = {nu}");
+    assert!(!nu.contains("--servicedatabase"), "nu = {nu}");
+    assert!(nu.contains("export extern \"getent passwd\""), "nu = {nu}");
+}
+
+#[test]
+fn manpage_b_macro_option_tag_with_embedded_quotes() {
+    let groff = r#".SH OPTIONS
+.TP
+.B "\-s ""\fIprogram\fR [\fIargument \fR...]\fB""\fR, \fB\-\-speller=""\fIprogram\fR [\fIargument \fR...]\fB"""
+Use this command to perform spell checking and correcting.
+"#;
+    let r = parse_manpage_string(groff);
+    assert!(
+        r.entries
+            .iter()
+            .any(|e| matches!(e.switch, OwnedSwitch::Short('s'))),
+        "entries: {:?}",
+        r.entries
+    );
+}
+
+#[test]
+fn manpage_synopsis_b_macro_bracket_args_keep_spaces() {
+    let groff = r#".SH "SYNOPSIS"
+.B "rtmon"
+.RI "[ " OPTIONS " ] "
+.BI "file " FILE
+.BR "[ " all
+.RI "| " OBJECTS
+.RB "]"
+.ti -8
+.I OBJECTS
+.B ":= [" link "]" "[" address "]" "[" route "]"
+.SH OPTIONS
+"#;
+    let r = parse_manpage_string(groff);
+    let positional_names: Vec<&str> = r
+        .positionals
+        .iter()
+        .map(|(name, _)| name.as_str())
+        .collect();
+    assert!(
+        !positional_names.contains(&"ptions")
+            && positional_names.contains(&"link")
+            && positional_names.contains(&"address"),
+        "positionals: {positional_names:?}"
+    );
+}
+
+#[test]
+fn bracketed_angle_positionals_keep_inner_ellipsis() {
+    let groff = r#".SH SYNOPSIS
+.B bzip2
+.RB [ " \-cdfkqstvzVL123456789 " ]
+[
+.I "filenames \&..."
+]
+.SH OPTIONS
+"#;
+    let r = parse_manpage_string(groff);
+    assert!(
+        r.positionals
+            .iter()
+            .any(|(name, positional)| name == "filenames" && positional.variadic),
+        "positionals: {:?}",
+        r.positionals
+    );
+}
+
+#[test]
+fn nested_optional_positionals_keep_last_valid_inner_name() {
+    let groff = r#".SH SYNOPSIS
+\fBfc-cat\fR [ \fB-rvVh\fR ]
+ [ \fB [ \fIfonts-cache-%version%-files\fB ]  [ \fIdirs\fB ] \fR\fI...\fR ]
+.SH OPTIONS
+"#;
+    let r = parse_manpage_string(groff);
+    assert!(
+        r.positionals
+            .iter()
+            .any(|(name, positional)| name == "dirs" && positional.optional && positional.variadic),
+        "positionals: {:?}",
+        r.positionals
+    );
+}
+
+#[test]
+fn manpage_empty_options() {
+    let groff = ".SH NAME\nfoo \\- does stuff\n.SH DESCRIPTION\nDoes stuff.\n";
+    let r = parse_manpage_string(groff);
+    assert_eq!(r.entries.len(), 0);
+}
+
+#[test]
+fn manpage_nix3_style() {
+    let groff = r#".SH Options
+.SS Logging-related options
+.IP "\(bu" 3
+.UR #opt-verbose
+\f(CR--verbose\fR
+.UE
+/ \f(CR-v\fR
+.IP
+Increase the logging verbosity level.
+.IP "\(bu" 3
+.UR #opt-quiet
+\f(CR--quiet\fR
+.UE
+.IP
+Decrease the logging verbosity level.
+.SH SEE ALSO
+"#;
+    let r = parse_manpage_string(groff);
+    assert_eq!(r.entries.len(), 2, "entries: {:?}", r.entries);
+    assert!(matches!(&r.entries[0].switch, OwnedSwitch::Both('v', l) if l == "verbose"));
+    assert!(!r.entries[0].desc.is_empty());
+    assert!(matches!(&r.entries[1].switch, OwnedSwitch::Long(l) if l == "quiet"));
+    assert!(!r.entries[1].desc.is_empty());
+}
+
+#[test]
+fn manpage_nix3_with_params() {
+    let groff = r#".SH Options
+.IP "\(bu" 3
+.UR #opt-arg
+\f(CR--arg\fR
+.UE
+\fIname\fR \fIexpr\fR
+.IP
+Pass the value as the argument name to Nix functions.
+.IP "\(bu" 3
+.UR #opt-include
+\f(CR--include\fR
+.UE
+/ \f(CR-I\fR \fIpath\fR
+.IP
+Add path to search path entries.
+.IP
+This option may be given multiple times.
+.SH SEE ALSO
+"#;
+    let r = parse_manpage_string(groff);
+    assert_eq!(r.entries.len(), 2, "entries: {:?}", r.entries);
+    assert!(matches!(&r.entries[0].switch, OwnedSwitch::Long(l) if l == "arg"));
+    assert!(r.entries[0].param.is_some());
+    assert!(matches!(&r.entries[1].switch, OwnedSwitch::Both('I', l) if l == "include"));
+    assert!(matches!(&r.entries[1].param, Some(OwnedParam::Mandatory(p)) if p == "path"));
+}
+
+#[test]
+fn synopsis_subcommand() {
+    let groff = r#".SH "SYNOPSIS"
+.sp
+.nf
+\fBgit\fR \fBcommit\fR [\fB\-a\fR | \fB\-\-interactive\fR]
+.fi
+.SH "DESCRIPTION"
+"#;
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("git commit"));
+}
+
+#[test]
+fn synopsis_standalone() {
+    let groff = ".SH Synopsis\n.LP\n\\f(CRnix-build\\fR [\\fIpaths\\fR]\n.SH Description\n";
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("nix-build"));
+}
+
+#[test]
+fn synopsis_nix3() {
+    let groff = ".SH Synopsis\n.LP\n\\f(CRnix run\\fR [\\fIoption\\fR] \\fIinstallable\\fR\n.SH Description\n";
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("nix run"));
+}
+
+#[test]
+fn italic_synopsis() {
+    let groff = ".SH Synopsis\n.LP\n\\f(CRnix-env\\fR \\fIoperation\\fR [\\fIoptions\\fR] [\\fIarguments…\\fR]\n.SH Description\n";
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("nix-env"));
+}
+
+#[test]
+fn synopsis_italic_command_name() {
+    // git-am.1 (and many other git manpages) put the entire command
+    // invocation in italics: `\fIgit am\fR [...]`. should still resolve
+    // to "git am" rather than treating it as a placeholder.
+    let groff = ".SH \"SYNOPSIS\"\n.sp\n.nf\n\\fIgit am\\fR [\\-\\-signoff] [\\-\\-keep]\n.fi\n.SH \"DESCRIPTION\"\n";
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("git am"));
+}
+
+#[test]
+fn synopsis_skips_prose_before_invocation() {
+    let groff = r#".SH SYNOPSIS
+The dynamic linker can be run either indirectly by running some
+dynamically linked program or shared object
+(in which case no command-line options
+to the dynamic linker can be passed and, in the ELF case, the dynamic linker
+which is stored in the
+.B .interp
+section of the program is executed) or directly by running:
+.P
+.I /lib/ld\-linux.so.*
+[OPTIONS] [PROGRAM [ARGUMENTS]]
+.SH DESCRIPTION
+"#;
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), None);
+}
+
+#[test]
+fn synopsis_skips_labels_before_invocation() {
+    let groff = r#".SH "SYNOPSIS"
+.sp
+Set up a loop device:
+.sp
+\fBlosetup\fP [options] \fB\-f\fP|\fIloopdev file\fP
+.sp
+Get info:
+.RS 4
+\fBlosetup\fP \fIloopdev\fP
+.RE
+.SH "DESCRIPTION"
+"#;
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("losetup"));
+}
+
+#[test]
+fn synopsis_b_macro_preserves_command_spaces() {
+    let groff = r#".SH "SYNOPSIS"
+.sp
+.B ip link
+.RI " { " COMMAND " | "
+.BR help " }"
+.SH "DESCRIPTION"
+"#;
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("ip link"));
+}
+
+#[test]
+fn synopsis_br_macro_preserves_quoted_command_spaces() {
+    let groff = r#".SH "SYNOPSIS"
+.sp
+.BR "ip monitor" " [ " all " |"
+.IR OBJECT-LIST " ]"
+.SH "DESCRIPTION"
+"#;
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("ip monitor"));
+}
+
+#[test]
+fn synopsis_long_b_macro_is_not_prose() {
+    let groff = r#".SH SYNOPSIS
+.ad l
+.in +8
+.ti -8
+.B tipc peer remove address
+.IR ADDRESS
+.SH OPTIONS
+"#;
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("tipc peer remove address"));
+}
+
+#[test]
+fn synopsis_ss_heading_is_accepted() {
+    let groff = r#".SH Name
+.LP
+\f(CRnix-env --set\fR - set profile to contain a specified derivation
+.SS
+Synopsis
+.LP
+\f(CRnix-env\fR \f(CR--set\fR \fIdrvname\fR
+.SS
+Description
+"#;
+    let cmd = extract_synopsis_command(groff);
+    assert_eq!(cmd.as_deref(), Some("nix-env"));
+}
+
+// --- Font/dedup tests (only the font-spacing one is portable) ---
+
+#[test]
+fn font_boundary_spacing() {
+    // \fB--max-results\fR\fIcount\fR should become "--max-results count"
+    let s = strip_groff_escapes(r#"\fB\-\-max\-results\fR\fIcount\fR"#);
+    assert!(s.contains("--max-results count"), "got: {s}");
+    // \fB--color\fR[=\fIWHEN\fR] should NOT insert space before =
+    let s2 = strip_groff_escapes(r#"\fB\-\-color\fR[=\fIWHEN\fR]"#);
+    assert!(s2.contains("--color[=WHEN]"), "got: {s2}");
+}
+
+// --- COMMANDS section tests ---
+
+#[test]
+fn commands_section_subcommands() {
+    let groff = r#".SH OPTIONS
+.TP
+\fB\-\-user\fR
+Talk to the service manager of the calling user.
+.TP
+\fB\-\-system\fR
+Talk to the service manager of the system.
+.SH COMMANDS
+.PP
+\fBstart\fR \fIUNIT\fR\&...
+.RS 4
+Start (activate) one or more units.
+.RE
+.PP
+\fBstop\fR \fIUNIT\fR\&...
+.RS 4
+Stop (deactivate) one or more units.
+.RE
+.PP
+\fBreload\fR \fIUNIT\fR\&...
+.RS 4
+Asks all units to reload their configuration.
+.RE
+.SH SEE ALSO
+"#;
+    let r = parse_manpage_string(groff);
+    assert_eq!(r.entries.len(), 2, "options entries: {:?}", r.entries);
+    assert_eq!(r.subcommands.len(), 3, "subcommands: {:?}", r.subcommands);
+    let names: Vec<&str> = r.subcommands.iter().map(|sc| sc.name.as_str()).collect();
+    assert!(names.contains(&"start"));
+    assert!(names.contains(&"stop"));
+    assert!(names.contains(&"reload"));
+    let start_sc = r.subcommands.iter().find(|sc| sc.name == "start").unwrap();
+    assert!(!start_sc.desc.is_empty());
+}
+
+#[test]
+fn commands_section_git_style_refs() {
+    let groff = r#".SH OPTIONS
+.TP
+\fB\-\-version\fR
+Show version.
+.SH "GIT COMMANDS"
+.SS "Main porcelain commands"
+.PP
+.BR git-add (1)
+.RS 4
+Add file contents to the index.
+.RE
+.PP
+\fBgit-commit\fR(1)
+.RS 4
+Record changes to the repository.
+.RE
+"#;
+    let r = parse_manpage_string(groff);
+    let names: Vec<&str> = r.subcommands.iter().map(|sc| sc.name.as_str()).collect();
+    assert!(
+        names.contains(&"git-add"),
+        "subcommands: {:?}",
+        r.subcommands
+    );
+    assert!(
+        names.contains(&"git-commit"),
+        "subcommands: {:?}",
+        r.subcommands
+    );
+    let add = r
+        .subcommands
+        .iter()
+        .find(|sc| sc.name == "git-add")
+        .unwrap();
+    assert!(add.desc.contains("Add file contents"));
+}
+
+// --- Nushell generation tests ---
+
+fn to_owned_result(r: &HelpResult<'_>) -> ManpageResult {
+    r.into()
+}
+
+#[test]
+fn nushell_basic() {
+    let r = parse("  -a, --all                  do not ignore entries starting with .\n");
+    let nu = generate_extern("ls", &to_owned_result(&r));
+    assert!(nu.contains("export extern \"ls\""), "nu = {nu}");
+    assert!(nu.contains("--all(-a)"), "nu = {nu}");
+    assert!(nu.contains("# do not ignore"), "nu = {nu}");
+}
+
+#[test]
+fn nushell_param_types() {
+    let txt = "  -w, --width=COLS           set output width\n      --block-size=SIZE      scale sizes\n  -o, --output FILE          output file\n";
+    let r = parse(txt);
+    let nu = generate_extern("ls", &to_owned_result(&r));
+    assert!(nu.contains("--width(-w): int"), "nu = {nu}");
+    assert!(nu.contains("--block-size: string"), "nu = {nu}");
+    assert!(nu.contains("--output(-o): path"), "nu = {nu}");
+}
+
+#[test]
+fn nushell_subcommands() {
+    let txt = "Common Commands:\n  run         Create and run a new container\n  exec        Execute a command\n\nFlags:\n  -D, --debug              Enable debug mode\n";
+    let r = parse(txt);
+    let nu = generate_extern("docker", &to_owned_result(&r));
+    assert!(nu.contains("export extern \"docker\""), "nu = {nu}");
+    assert!(nu.contains("--debug(-D)"), "nu = {nu}");
+    assert!(nu.contains("export extern \"docker run\""), "nu = {nu}");
+    assert!(nu.contains("export extern \"docker exec\""), "nu = {nu}");
+}
+
+#[test]
+fn positional_order_survives_cache_and_generation() {
+    let txt = "usage: git clone [<options>] [--] <repository> [directory]\n";
+    let result = to_owned_result(&parse(txt));
+    assert_eq!(
+        result
+            .positionals
+            .iter()
+            .map(|(name, _)| name.as_str())
+            .collect::<Vec<_>>(),
+        vec!["repository", "directory"]
+    );
+
+    let json = json_of_result("help", &result);
+    let value = serde_json::from_str(&json).expect("cache json");
+    let cached = result_from_json(&value);
+    assert_eq!(
+        cached
+            .positionals
+            .iter()
+            .map(|(name, _)| name.as_str())
+            .collect::<Vec<_>>(),
+        vec!["repository", "directory"]
+    );
+
+    let nu = generate_extern("git clone", &cached);
+    let repository = nu
+        .find("repository: string")
+        .expect("repository positional");
+    let directory = nu.find("directory?: path").expect("directory positional");
+    assert!(repository < directory, "nu = {nu}");
+}
+
+#[test]
+fn nushell_from_manpage() {
+    let groff = r#".SH OPTIONS
+.TP
+\fB\-a\fR, \fB\-\-all\fR
+do not ignore entries starting with .
+.TP
+\fB\-\-block\-size\fR=\fISIZE\fR
+scale sizes by SIZE
+.SH AUTHOR
+"#;
+    let result = parse_manpage_string(groff);
+    let nu = generate_extern("ls", &result);
+    assert!(nu.contains("export extern \"ls\""), "nu = {nu}");
+    assert!(nu.contains("--all(-a)"), "nu = {nu}");
+    assert!(nu.contains("--block-size: string"), "nu = {nu}");
+}
+
+#[test]
+fn nushell_module() {
+    let r = parse("  -v, --verbose              verbose output\n");
+    let nu = generate_module("myapp", &to_owned_result(&r));
+    assert!(nu.contains("module myapp-completions"), "nu = {nu}");
+    assert!(nu.contains("export extern \"myapp\""), "nu = {nu}");
+    assert!(nu.contains("--verbose(-v)"), "nu = {nu}");
+}
+
+#[test]
+fn dedup_entries_help() {
+    let txt = "  -v, --verbose              verbose output\n  --verbose                  verbose mode\n  -v                         be verbose\n";
+    let r = parse(txt);
+    let nu = generate_extern("test", &to_owned_result(&r));
+    let count = nu.matches("--verbose").count();
+    assert_eq!(count, 1, "expected --verbose to appear once, nu = {nu}");
+    assert!(nu.contains("--verbose(-v)"), "nu = {nu}");
+}
+
+#[test]
+fn dedup_manpage_entries() {
+    let groff = r#".SH OPTIONS
+.TP
+\fB\-v\fR, \fB\-\-verbose\fR
+Be verbose.
+.SH DESCRIPTION
+Use \fB\-v\fR for verbose output.
+Use \fB\-\-verbose\fR to see more.
+"#;
+    let result = parse_manpage_string(groff);
+    let nu = generate_extern("test", &result);
+    assert!(nu.contains("--verbose(-v)"), "nu = {nu}");
+    let verbose_lines: Vec<&str> = nu.lines().filter(|l| l.contains("verbose")).collect();
+    assert_eq!(
+        verbose_lines.len(),
+        1,
+        "expected 1 verbose line, got: {verbose_lines:?}"
+    );
+}
+
+#[test]
+fn nu_file_parsing() {
+    let nu_source = r#"module completions {
+
+  # Unofficial CLI tool
+  export extern mytool [
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # List all items
+  export extern "mytool list" [
+    --raw                     # Output as JSON
+    --format(-f): string      # Output format
+    --help(-h)                # Print help
+    name?: string             # Filter by name
+  ]
+
+}
+
+use completions *
+"#;
+    let r = parse_nu_completions("mytool", nu_source);
+    assert_eq!(r.entries.len(), 2, "entries: {:?}", r.entries);
+    assert!(
+        !r.subcommands.is_empty(),
+        "subcommands: {:?}",
+        r.subcommands
+    );
+    assert!(r.subcommands.iter().any(|sc| sc.name == "list"));
+    assert_eq!(r.description, "Unofficial CLI tool");
+
+    let r2 = parse_nu_completions("mytool list", nu_source);
+    assert_eq!(r2.entries.len(), 3, "list entries: {:?}", r2.entries);
+    let has_format = r2
+        .entries
+        .iter()
+        .any(|e| matches!(&e.switch, OwnedSwitch::Both('f', l) if l == "format"));
+    assert!(
+        has_format,
+        "list should have --format(-f): {:?}",
+        r2.entries
+    );
+    assert!(!r2.positionals.is_empty(), "list should have a positional");
+}
+
+#[test]
+fn self_listing_detection() {
+    let txt = r#"systemctl [OPTIONS...] COMMAND ...
+
+Unit Commands:
+  start UNIT...                       Start (activate) one or more units
+  stop UNIT...                        Stop (deactivate) one or more units
+  status [PATTERN...]                 Show runtime status
+
+Options:
+  --user                              Talk to the user service manager
+  --system                            Talk to the system service manager
+"#;
+    let r = parse(txt);
+    let has_start = r.subcommands.iter().any(|sc| sc.name == "start");
+    assert!(
+        has_start,
+        "expected start in subcommands: {:?}",
+        r.subcommands.iter().map(|sc| sc.name).collect::<Vec<_>>()
+    );
+    assert!(r.entries.len() >= 2);
+}

tests/runtime_complete.rs

@@ -0,0 +1,500 @@
+use std::fs;
+use std::os::unix::fs::PermissionsExt;
+use std::process::Command;
+use std::time::{SystemTime, UNIX_EPOCH};
+
+use inshellah::parsers::manpage::{ManpageEntry, ManpageResult, ManpageSubcommand, OwnedSwitch};
+use inshellah::store::write_result;
+
+fn unique_temp_dir(name: &str) -> std::path::PathBuf {
+    let nanos = SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .expect("system time")
+        .as_nanos();
+    std::env::temp_dir().join(format!("{name}-{}-{nanos}", std::process::id()))
+}
+
+#[test]
+fn complete_scrapes_missing_subcommand_when_parent_is_cached() {
+    let root = unique_temp_dir("inshellah-runtime-complete");
+    let bin_dir = root.join("bin");
+    let cache_dir = root.join("cache");
+    fs::create_dir_all(&bin_dir).expect("bin dir");
+    fs::create_dir_all(&cache_dir).expect("cache dir");
+
+    let fakecmd = bin_dir.join("fakecmd");
+    fs::write(
+        &fakecmd,
+        r#"#!/bin/sh
+if [ "$1" = "clone" ]; then
+  if [ "$2" = "--help" ] || [ "$2" = "-h" ]; then
+    cat <<'EOF'
+Usage: fakecmd clone [OPTIONS] <repository> [directory]
+
+Options:
+  --depth <n>          clone depth
+  -v, --verbose        verbose
+EOF
+    exit 0
+  fi
+fi
+
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  cat <<'EOF'
+Usage: fakecmd [OPTIONS] COMMAND
+
+Commands:
+  clone    Clone a repository
+
+Options:
+  -h, --help           show help
+EOF
+  exit 0
+fi
+
+exit 2
+"#,
+    )
+    .expect("write fakecmd");
+    let mut perms = fs::metadata(&fakecmd).expect("metadata").permissions();
+    perms.set_mode(0o755);
+    fs::set_permissions(&fakecmd, perms).expect("chmod");
+
+    let parent = ManpageResult {
+        entries: Vec::new(),
+        subcommands: vec![ManpageSubcommand {
+            name: "clone".to_string(),
+            desc: "Clone a repository".to_string(),
+        }],
+        positionals: Vec::new(),
+        description: String::new(),
+    };
+    write_result(&cache_dir, "fakecmd", "help", &parent).expect("parent cache");
+
+    let old_path = std::env::var_os("PATH").unwrap_or_default();
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("complete")
+        .arg("--dir")
+        .arg(&cache_dir)
+        .arg("--timeout-ms")
+        .arg("1000")
+        .arg("fakecmd")
+        .arg("clone")
+        .arg("--")
+        .env(
+            "PATH",
+            format!("{}:{}", bin_dir.display(), old_path.to_string_lossy()),
+        )
+        .output()
+        .expect("run inshellah complete");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    assert!(stdout.contains("--depth"), "stdout = {stdout}");
+    assert!(
+        cache_dir.join("fakecmd_clone.json").is_file(),
+        "subcommand cache was not written"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}
+
+#[test]
+fn complete_does_not_scan_path_at_command_position() {
+    let root = unique_temp_dir("inshellah-command-position-complete");
+    let bin_dir = root.join("bin");
+    let cache_dir = root.join("cache");
+    fs::create_dir_all(&bin_dir).expect("bin dir");
+    fs::create_dir_all(&cache_dir).expect("cache dir");
+
+    let fake_git = bin_dir.join("git");
+    fs::write(&fake_git, "#!/bin/sh\nexit 0\n").expect("write fake git");
+    let mut perms = fs::metadata(&fake_git).expect("metadata").permissions();
+    perms.set_mode(0o755);
+    fs::set_permissions(&fake_git, perms).expect("chmod");
+
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("complete")
+        .arg("--dir")
+        .arg(&cache_dir)
+        .arg("gi")
+        .env("PATH", &bin_dir)
+        .output()
+        .expect("run inshellah complete");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    assert_eq!(stdout.trim(), "null", "stdout = {stdout}");
+
+    let _ = fs::remove_dir_all(root);
+}
+
+#[test]
+fn complete_uses_boundary_aware_fuzzy_ranking() {
+    let root = unique_temp_dir("inshellah-fuzzy-complete");
+    let cache_dir = root.join("cache");
+    fs::create_dir_all(&cache_dir).expect("cache dir");
+
+    let result = ManpageResult {
+        entries: Vec::new(),
+        subcommands: vec![
+            ManpageSubcommand {
+                name: "load".to_string(),
+                desc: "load something".to_string(),
+            },
+            ManpageSubcommand {
+                name: "clone".to_string(),
+                desc: "clone something".to_string(),
+            },
+        ],
+        positionals: Vec::new(),
+        description: String::new(),
+    };
+    write_result(&cache_dir, "demo", "help", &result).expect("cache");
+
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("complete")
+        .arg("--dir")
+        .arg(&cache_dir)
+        .arg("demo")
+        .arg("lo")
+        .output()
+        .expect("run inshellah complete");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    let load_pos = stdout.find(r#""value":"load""#).unwrap_or(usize::MAX);
+    let clone_pos = stdout.find(r#""value":"clone""#).unwrap_or(usize::MAX);
+    assert!(
+        load_pos < clone_pos,
+        "expected boundary match to outrank substring match, stdout = {stdout}"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}
+
+#[test]
+fn complete_returns_flags_only_after_hyphen() {
+    let root = unique_temp_dir("inshellah-flag-prefix-complete");
+    let cache_dir = root.join("cache");
+    fs::create_dir_all(&cache_dir).expect("cache dir");
+
+    let result = ManpageResult {
+        entries: vec![ManpageEntry {
+            switch: OwnedSwitch::Long("verbose".to_string()),
+            param: None,
+            desc: "verbose output".to_string(),
+        }],
+        subcommands: Vec::new(),
+        positionals: Vec::new(),
+        description: String::new(),
+    };
+    write_result(&cache_dir, "demo", "help", &result).expect("cache");
+
+    let argument_output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("complete")
+        .arg("--dir")
+        .arg(&cache_dir)
+        .arg("demo")
+        .arg("")
+        .output()
+        .expect("run inshellah complete");
+    assert!(
+        argument_output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&argument_output.stderr)
+    );
+    let argument_stdout = String::from_utf8(argument_output.stdout).expect("stdout");
+    assert_eq!(argument_stdout.trim(), "null", "stdout = {argument_stdout}");
+
+    let flag_output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("complete")
+        .arg("--dir")
+        .arg(&cache_dir)
+        .arg("demo")
+        .arg("--")
+        .output()
+        .expect("run inshellah complete");
+    assert!(
+        flag_output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&flag_output.stderr)
+    );
+    let flag_stdout = String::from_utf8(flag_output.stdout).expect("stdout");
+    assert!(
+        flag_stdout.contains(r#""value":"--verbose""#),
+        "stdout = {flag_stdout}"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}
+
+#[test]
+fn complete_resolves_absolute_path_after_elevation_wrapper() {
+    let root = unique_temp_dir("inshellah-absolute-elevation-complete");
+    let bin_dir = root.join("bin");
+    let cache_dir = root.join("cache");
+    fs::create_dir_all(&bin_dir).expect("bin dir");
+    fs::create_dir_all(&cache_dir).expect("cache dir");
+
+    let fakecmd = bin_dir.join("fakecmd");
+    fs::write(
+        &fakecmd,
+        r#"#!/bin/sh
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  printf '%s\n' 'Usage: fakecmd [OPTIONS]' '' 'Options:' '  --verbose        verbose output'
+  exit 0
+fi
+exit 2
+"#,
+    )
+    .expect("write fakecmd");
+    let mut perms = fs::metadata(&fakecmd).expect("metadata").permissions();
+    perms.set_mode(0o755);
+    fs::set_permissions(&fakecmd, perms).expect("chmod");
+
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("complete")
+        .arg("--dir")
+        .arg(&cache_dir)
+        .arg("--timeout-ms")
+        .arg("1000")
+        .arg("sudo")
+        .arg(&fakecmd)
+        .arg("--")
+        .env("PATH", "")
+        .output()
+        .expect("run inshellah complete");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    assert!(
+        stdout.contains(r#""value":"--verbose""#),
+        "stdout = {stdout}"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}
+
+#[test]
+fn complete_adb_dynamic_values_use_live_devices_and_packages() {
+    let root = unique_temp_dir("inshellah-adb-dynamic-complete");
+    let bin_dir = root.join("bin");
+    let cache_dir = root.join("cache");
+    fs::create_dir_all(&bin_dir).expect("bin dir");
+    fs::create_dir_all(&cache_dir).expect("cache dir");
+
+    let adb = bin_dir.join("adb");
+    fs::write(
+        &adb,
+        r#"#!/bin/sh
+selector=""
+case "$1" in
+  -s|--serial|--one-device)
+    selector="$2"
+    shift 2
+    ;;
+  -t|--transport-id)
+    selector="transport:$2"
+    shift 2
+    ;;
+  --serial=*)
+    selector="${1#--serial=}"
+    shift
+    ;;
+  --one-device=*)
+    selector="${1#--one-device=}"
+    shift
+    ;;
+  --transport-id=*)
+    selector="transport:${1#--transport-id=}"
+    shift
+    ;;
+esac
+
+if [ "$1" = "devices" ] && [ "$2" = "-l" ]; then
+  printf '%s\n' 'List of devices attached'
+  printf '%s\n' 'emulator-5554	device product:sdk_gphone_x86 model:Pixel_8 device:emu transport_id:1'
+  printf '%s\n' 'R58M123456	device product:oriole model:Pixel_6 device:oriole transport_id:2'
+  printf '%s\n' 'offline-1	offline transport_id:3'
+  exit 0
+fi
+
+if [ "$1" = "shell" ] && [ "$2" = "pm" ] && [ "$3" = "list" ] && [ "$4" = "packages" ]; then
+  case "$selector" in
+    emulator-5554)
+      printf '%s\n' 'package:com.example.emu'
+      printf '%s\n' 'package:org.example.shared'
+      ;;
+    transport:2)
+      printf '%s\n' 'package:com.example.transport'
+      printf '%s\n' 'package:org.example.transport'
+      ;;
+    *)
+      printf '%s\n' 'package:com.default.app'
+      printf '%s\n' 'package:/data/app/org.default.path/base.apk=org.default.path'
+      ;;
+  esac
+  exit 0
+fi
+
+exit 2
+"#,
+    )
+    .expect("write adb");
+    let mut perms = fs::metadata(&adb).expect("metadata").permissions();
+    perms.set_mode(0o755);
+    fs::set_permissions(&adb, perms).expect("chmod");
+
+    let run_complete = |args: &[&str]| -> String {
+        let mut cmd = Command::new(env!("CARGO_BIN_EXE_inshellah"));
+        cmd.arg("complete")
+            .arg("--dir")
+            .arg(&cache_dir)
+            .arg("--timeout-ms")
+            .arg("1000");
+        for arg in args {
+            cmd.arg(arg);
+        }
+        let output = cmd
+            .env("PATH", &bin_dir)
+            .output()
+            .expect("run inshellah complete");
+        assert!(
+            output.status.success(),
+            "stderr = {}",
+            String::from_utf8_lossy(&output.stderr)
+        );
+        String::from_utf8(output.stdout).expect("stdout")
+    };
+
+    let stdout = run_complete(&["adb", "-s", ""]);
+    assert!(
+        stdout.contains(r#""value":"emulator-5554""#),
+        "stdout = {stdout}"
+    );
+    assert!(
+        stdout.contains(r#""description":"device sdk gphone x86 Pixel 8""#),
+        "stdout = {stdout}"
+    );
+    assert!(
+        stdout.contains(r#""value":"R58M123456""#),
+        "stdout = {stdout}"
+    );
+    assert!(
+        stdout.contains(r#""value":"offline-1""#),
+        "stdout = {stdout}"
+    );
+
+    let prefixed_stdout = run_complete(&["adb", "--serial=R5"]);
+    assert!(
+        prefixed_stdout.contains(r#""value":"--serial=R58M123456""#),
+        "stdout = {prefixed_stdout}"
+    );
+    assert!(
+        !prefixed_stdout.contains(r#""value":"--serial=emulator-5554""#),
+        "stdout = {prefixed_stdout}"
+    );
+
+    let one_device_stdout = run_complete(&["adb", "--one-device", ""]);
+    assert!(
+        one_device_stdout.contains(r#""value":"emulator-5554""#),
+        "stdout = {one_device_stdout}"
+    );
+
+    let transport_stdout = run_complete(&["adb", "-t", ""]);
+    assert!(
+        transport_stdout.contains(r#""value":"1""#),
+        "stdout = {transport_stdout}"
+    );
+    assert!(
+        transport_stdout.contains(r#""description":"emulator-5554 device sdk gphone x86 Pixel 8""#),
+        "stdout = {transport_stdout}"
+    );
+    assert!(
+        transport_stdout.contains(r#""value":"2""#),
+        "stdout = {transport_stdout}"
+    );
+
+    let transport_prefixed_stdout = run_complete(&["adb", "--transport-id=2"]);
+    assert!(
+        transport_prefixed_stdout.contains(r#""value":"--transport-id=2""#),
+        "stdout = {transport_prefixed_stdout}"
+    );
+    assert!(
+        !transport_prefixed_stdout.contains(r#""value":"--transport-id=1""#),
+        "stdout = {transport_prefixed_stdout}"
+    );
+
+    let uninstall_stdout = run_complete(&["adb", "uninstall", "org"]);
+    assert!(
+        uninstall_stdout.contains(r#""value":"org.default.path""#),
+        "stdout = {uninstall_stdout}"
+    );
+    assert!(
+        !uninstall_stdout.contains(r#""value":"com.default.app""#),
+        "stdout = {uninstall_stdout}"
+    );
+
+    let clear_stdout = run_complete(&["adb", "-s", "emulator-5554", "shell", "pm", "clear", ""]);
+    assert!(
+        clear_stdout.contains(r#""value":"com.example.emu""#),
+        "stdout = {clear_stdout}"
+    );
+    assert!(
+        !clear_stdout.contains(r#""value":"com.example.transport""#),
+        "stdout = {clear_stdout}"
+    );
+
+    let force_stop_stdout = run_complete(&[
+        "adb",
+        "-t",
+        "2",
+        "shell",
+        "am",
+        "force-stop",
+        "--user",
+        "0",
+        "com.",
+    ]);
+    assert!(
+        force_stop_stdout.contains(r#""value":"com.example.transport""#),
+        "stdout = {force_stop_stdout}"
+    );
+    assert!(
+        !force_stop_stdout.contains(r#""value":"com.example.emu""#),
+        "stdout = {force_stop_stdout}"
+    );
+
+    let flag_value_stdout = run_complete(&["adb", "shell", "pm", "enable", "--user", ""]);
+    assert_eq!(
+        flag_value_stdout.trim(),
+        "null",
+        "stdout = {flag_value_stdout}"
+    );
+
+    let shell_flag_stdout = run_complete(&["adb", "shell", "-s", ""]);
+    assert_eq!(
+        shell_flag_stdout.trim(),
+        "null",
+        "stdout = {shell_flag_stdout}"
+    );
+
+    let _ = fs::remove_dir_all(root);
+}

tests/self_completions.rs

@@ -0,0 +1,31 @@
+use std::process::Command;
+
+#[test]
+fn inshellah_completions_include_all_subcommands() {
+    let output = Command::new(env!("CARGO_BIN_EXE_inshellah"))
+        .arg("completions")
+        .output()
+        .expect("run inshellah completions");
+
+    assert!(
+        output.status.success(),
+        "stderr = {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+    let stdout = String::from_utf8(output.stdout).expect("stdout");
+    for subcommand in [
+        "index",
+        "manpage",
+        "manpage-dir",
+        "complete",
+        "query",
+        "dump",
+        "completions",
+    ] {
+        let extern_name = format!("export extern \"inshellah {subcommand}\"");
+        assert!(
+            stdout.contains(&extern_name),
+            "missing {extern_name}; stdout = {stdout}"
+        );
+    }
+}