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{"parentUuid":"715fe8a7-e946-4915-8877-3e234d02ab8c","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","message":{"model":"claude-haiku-4-5-20251001","id":"msg_018rv5ZQzwF2aVJ14EDdrVmS","type":"message","role":"assistant","content":[{"type":"text","text":"Let me check for AsyncCommand usage and also search for any existing fd management code:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":8397,"cache_read_input_tokens":35585,"cache_creation":{"ephemeral_5m_input_tokens":8397,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXStky7WcNzmd1k1iibEj","type":"assistant","uuid":"245fa32b-bb57-4016-96d8-0e266e129ed3","timestamp":"2026-01-24T21:13:22.143Z"}
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{"parentUuid":"d21df028-720c-4760-bb86-a63e69fe5ee5","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01BFLB9Cdig3eKjwDQUC1PoH","type":"tool_result","content":"src/auth.rs:65: let read = unsafe { File::from_raw_fd(paru_read) };\nsrc/auth.rs:66: let write = unsafe { File::from_raw_fd(paru_write) };","is_error":false}]},"uuid":"db2070d6-00d7-43ba-b13c-4b2dbe9bb44e","timestamp":"2026-01-24T21:13:23.297Z","sourceToolAssistantUUID":"d21df028-720c-4760-bb86-a63e69fe5ee5"}
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{"parentUuid":"9a4781d7-7563-43a9-8ad9-0599a2adf462","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_013G89tNpVMgUHKXuxNKUqV8","type":"tool_result","content":"src/devel.rs:25:use tokio::process::Command as AsyncCommand;\nsrc/devel.rs:264: let mut command = AsyncCommand::new(git);","is_error":false}]},"uuid":"209c8bec-02d0-455f-aac1-42ceb4e19e0d","timestamp":"2026-01-24T21:13:23.302Z","sourceToolAssistantUUID":"9a4781d7-7563-43a9-8ad9-0599a2adf462"}
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{"parentUuid":"fbfea3a3-c681-49a0-b3e6-4ddc93c0c5ee","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","message":{"model":"claude-haiku-4-5-20251001","id":"msg_01Eb1fA6MD7ZJfcPJEDw7hWt","type":"message","role":"assistant","content":[{"type":"text","text":"Excellent! Now let me search for where these exec functions are called to understand the pattern better:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":115,"cache_creation_input_tokens":445,"cache_read_input_tokens":43982,"cache_creation":{"ephemeral_5m_input_tokens":445,"ephemeral_1h_input_tokens":0},"output_tokens":4,"service_tier":"standard"}},"requestId":"req_011CXStmFE8XajyudisrKo3C","type":"assistant","uuid":"9a5f8331-e54d-4c50-8eae-210a09bb30ec","timestamp":"2026-01-24T21:13:25.362Z"}
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{"parentUuid":"46987809-59e0-47fe-a45a-469c3a97bc64","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","type":"progress","data":{"type":"hook_progress","hookEvent":"PreToolUse","hookName":"PreToolUse:Bash","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/pretooluse.py"},"toolUseID":"toolu_01MW3bvgnLDzXqW2osaYf5qk","parentToolUseID":"toolu_01MW3bvgnLDzXqW2osaYf5qk","uuid":"664d4c67-6c96-47b8-8774-40dffdde8b52","timestamp":"2026-01-24T21:13:25.932Z"}
{"parentUuid":"46987809-59e0-47fe-a45a-469c3a97bc64","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01MW3bvgnLDzXqW2osaYf5qk","type":"tool_result","content":"src/sync.rs:35: if let Err(e) = exec::pacman(config, &args) {\nsrc/sync.rs:57: if let Err(e) = exec::pacman(config, &args) {\nsrc/repo.rs:46: if exec::command_output(&mut cmd).is_err() {\nsrc/repo.rs:55: exec::command(&mut cmd)?;\nsrc/repo.rs:80: let err = exec::command(&mut cmd);\nsrc/repo.rs:125: exec::command(&mut cmd)?;\nsrc/repo.rs:220: exec::command(&mut cmd)?;\nsrc/repo.rs:242: exec::pacman(config, &args)?.success()?;\nsrc/repo.rs:377: exec::command(&mut cmd)?;\nsrc/query.rs:38: repo_ret = exec::pacman(config, &args)?.code();\nsrc/query.rs:61: let output = exec::pacman_output(config, &args)?;\nsrc/clean.rs:21: exec::pacman(config, &config.args)?;\nsrc/clean.rs:191: exec::command_output(&mut cmd)?;\nsrc/clean.rs:199: exec::command_output(&mut cmd)?;\nsrc/lib.rs:210: Op::Database | Op::Files => exec::pacman(config, &config.args)?.code(),\nsrc/lib.rs:234: Ok(exec::pacman(config, &config.args)?.code())\nsrc/lib.rs:261: Ok(exec::pacman(config, args)?.code())\nsrc/lib.rs:302: Ok(exec::pacman(config, &args)?.code())\nsrc/lib.rs:325: Ok(exec::pacman(config, &config.args)?.code())\nsrc/lib.rs:358: Ok(exec::pacman(config, &config.args)?.code())\nsrc/remove.rs:39: let mut ret = exec::pacman(config, &config.args)?.code();\nsrc/chroot.rs:51: exec::command(&mut cmd)?;\nsrc/chroot.rs:65: exec::command(&mut cmd)?;\nsrc/chroot.rs:107: exec::command(&mut cmd)?;\nsrc/chroot.rs:120: let _ = exec::command(&mut cmd);\nsrc/chroot.rs:162: exec::command(&mut cmd)?;\nsrc/keys.rs:2:use crate::exec::command_status;\nsrc/keys.rs:80: exec::command(&mut cmd)\nsrc/install.rs:133: exec::pacman(config, &args)?.success()?;\nsrc/install.rs:142: exec::pacman(config, &args)?.success()?;\nsrc/install.rs:152: exec::spawn_sudo(config.sudo_bin.clone(), flags)?;\nsrc/install.rs:302: exec::pacman(config, &args)?.success()?;\nsrc/install.rs:395: exec::pacman(config, &args)?.success()?;\nsrc/install.rs:418: if let Err(err) = exec::pacman(config, &args) {\nsrc/install.rs:566: exec::makepkg(config, dir, &args)?\nsrc/install.rs:575: exec::makepkg(config, dir, &args)?\nsrc/install.rs:609: exec::makepkg_dest(config, dir, &args, pkgdest)?\nsrc/install.rs:998: let code = exec::pacman(config, &args)?.code();\nsrc/install.rs:1529: exec::pacman(config, &args)?.success()?;\nsrc/install.rs:1559: let output = exec::pacman_output(config, &args)?;\nsrc/install.rs:1576: exec::command(&mut cmd)?;\nsrc/install.rs:1665: let output = exec::command_output(&mut cmd)?;\nsrc/install.rs:1750: let mut child = exec::spawn(&mut command)?;\nsrc/install.rs:2058: let output = exec::makepkg_output_dest(config, dir, &[\"--packagelist\"], pkgdest)?;\nsrc/install.rs:2156: exec::command(&mut cmd)?;\nsrc/info.rs:69: ret |= exec::pacman(conf, &args)?.code();\nsrc/download.rs:250: exec::command_output(&mut cmd)?;\nsrc/download.rs:319: exec::command_output(&mut cmd)?;\nsrc/download.rs:670: let mut child = exec::spawn(&mut command)?;\nsrc/pkgbuild.rs:179: let output = exec::makepkg_output(config, path, &[\"--printsrcinfo\"])","is_error":false}]},"uuid":"4d1bceb0-b9b7-4e16-83d9-2cd0aaea5e3f","timestamp":"2026-01-24T21:13:26.030Z","sourceToolAssistantUUID":"46987809-59e0-47fe-a45a-469c3a97bc64"}
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{"parentUuid":"d5294d9b-a0eb-424c-8804-1cd065cb740d","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","message":{"model":"claude-haiku-4-5-20251001","id":"msg_01Lzi54EMXFPYMZCbaBrosHf","type":"message","role":"assistant","content":[{"type":"text","text":"Let me check one more important file - download.rs around line 663 where bat is used:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":1725,"cache_read_input_tokens":44427,"cache_creation":{"ephemeral_5m_input_tokens":1725,"ephemeral_1h_input_tokens":0},"output_tokens":3,"service_tier":"standard"}},"requestId":"req_011CXStmSBSiTuKjMtJRf1Jo","type":"assistant","uuid":"c3314577-878d-4fb0-8c8b-fa0aaeb34d58","timestamp":"2026-01-24T21:13:27.782Z"}
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{"parentUuid":"4a7ca208-31dc-4dd7-9386-08e7b287cb74","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01XCfJCrRnfLjkoy9eMQC8Rt","type":"tool_result","content":" 655→\n 656→ return Ok(ret);\n 657→ }\n 658→\n 659→ Ok(0)\n 660→}\n 661→\n 662→fn pipe_bat(config: &Config, pkgbuild: &[u8]) -> Result<()> {\n 663→ let mut command = Command::new(&config.bat_bin);\n 664→ command\n 665→ .arg(\"-pp\")\n 666→ .arg(\"--color=always\")\n 667→ .arg(\"-lPKGBUILD\")\n 668→ .args(&config.bat_flags)\n 669→ .stdin(Stdio::piped());\n 670→ let mut child = exec::spawn(&mut command)?;\n 671→\n 672→ let _ = child.stdin.as_mut().unwrap().write_all(pkgbuild);\n 673→ exec::wait(&command, &mut child)?;\n 674→ Ok(())\n 675→}\n 676→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"53279821-0b7c-4307-ad81-69f4e3967515","timestamp":"2026-01-24T21:13:28.710Z","sourceToolAssistantUUID":"4a7ca208-31dc-4dd7-9386-08e7b287cb74"}
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{"parentUuid":"e9ac046b-7deb-4534-bb7f-d87a913edb6c","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01X7MekKEgZBTik9veXuQzAj","type":"tool_result","content":" 1→use crate::config::{Colors, Config, YesNoAll};\n 2→use crate::exec::has_command;\n 3→use crate::fmt::print_indent;\n 4→use crate::util::is_arch_repo;\n 5→use crate::RaurHandle;\n 6→use crate::{exec, printtr};\n 7→\n 8→use std::collections::btree_map::Entry;\n 9→use std::collections::{BTreeMap, HashMap};\n 10→use std::env::current_dir;\n 11→use std::fs::{read_to_string, remove_dir_all};\n 12→use std::io::Write;\n 13→use std::iter::FromIterator;\n 14→use std::process::{Command, Stdio};\n 15→use std::result::Result as StdResult;\n 16→\n 17→use alpm::Version;\n 18→use alpm_utils::{AsTarg, DbListExt, Targ};\n 19→use ansiterm::Style;\n 20→use anyhow::{bail, Context, Result};\n 21→use aur_depends::AurBase;\n 22→\n 23→use globset::GlobSet;\n 24→use indicatif::{ProgressBar, ProgressStyle};\n 25→use raur::{ArcPackage as Package, Raur};\n 26→use srcinfo::Srcinfo;\n 27→use tr::tr;\n 28→use url::Url;\n 29→\n 30→#[derive(Debug, Clone, Default)]\n 31→pub struct Bases {\n 32→ pub bases: Vec,\n 33→}\n 34→\n 35→impl FromIterator for Bases {\n 36→ fn from_iter>(iter: T) -> Self {\n 37→ let mut bases = Bases::new();\n 38→ bases.extend(iter);\n 39→ bases\n 40→ }\n 41→}\n 42→\n 43→impl FromIterator for Bases {\n 44→ fn from_iter>(iter: T) -> Self {\n 45→ let mut bases = Bases::new();\n 46→ bases.extend_aur(iter);\n 47→ bases\n 48→ }\n 49→}\n 50→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"b0dfad27-0d0b-4776-9479-8414ff0bdd24","timestamp":"2026-01-24T21:13:28.748Z","sourceToolAssistantUUID":"e9ac046b-7deb-4534-bb7f-d87a913edb6c"}
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{"parentUuid":"6a168afe-ed23-49e1-8f61-f1793ec393cd","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","message":{"model":"claude-haiku-4-5-20251001","id":"msg_01NXLg5BCqfA4UoGWJ3SNF9z","type":"message","role":"assistant","content":[{"type":"text","text":"Perfect! Now let me search for the install.rs spawn usage to understand that pattern better:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":1344,"cache_read_input_tokens":46152,"cache_creation":{"ephemeral_5m_input_tokens":1344,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXStmdxsBgzbkJkcJH11b","type":"assistant","uuid":"c696713b-097f-4d95-b90e-e11170c5cfaa","timestamp":"2026-01-24T21:13:30.493Z"}
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{"parentUuid":"823434b9-cb3c-4e31-8d0c-4c725ee90d45","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_016EeDgnUTW2LvNvxyhidAzY","type":"tool_result","content":" 1740→ .or_else(|| var(\"PAGER\").ok())\n 1741→ .unwrap_or_else(|| pager.to_string());\n 1742→\n 1743→ exec::RAISE_SIGPIPE.store(false, Ordering::Relaxed);\n 1744→ let mut command = Command::new(\"sh\");\n 1745→\n 1746→ if std::env::var(\"LESS\").is_err() {\n 1747→ command.env(\"LESS\", \"SRXF\");\n 1748→ }\n 1749→ command.arg(\"-c\").arg(&pager).stdin(Stdio::piped());\n 1750→ let mut child = exec::spawn(&mut command)?;\n 1751→\n 1752→ let mut stdin = child.stdin.take().unwrap();\n 1753→\n 1754→ if pager_unconfigured && pager == \"less\" {\n 1755→ let _ = write!(\n 1756→ stdin,\n 1757→ \"{}\",\n 1758→ c.bold\n 1759→ .paint(tr!(\"Paging with less. Press 'q' to quit or 'h' for help.\"))\n 1760→ );\n 1761→ let _ = stdin.write_all(b\"\\n\\n\");\n 1762→ }\n 1763→\n 1764→ for (&pkg, diff) in has_diff.iter().zip(diffs) {\n 1765→ let _ = write!(\n 1766→ stdin,\n 1767→ \"{} {}:\\n \",\n 1768→ c.action.paint(\"::\"),\n 1769→ c.bold.paint(pkg)\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"473eeb41-6ac9-4159-9f23-5a254a88d5ed","timestamp":"2026-01-24T21:13:31.147Z","sourceToolAssistantUUID":"823434b9-cb3c-4e31-8d0c-4c725ee90d45"}
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{"parentUuid":"475410d0-b94d-4e1a-8a9b-03f6e90ef0f4","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/packaging/paru","sessionId":"9b27d9a2-d65c-4009-8770-7f0e79b56d39","version":"2.1.19","gitBranch":"feat/sort-mode-auto","agentId":"ab1f1f0","slug":"synthetic-knitting-taco","message":{"model":"claude-haiku-4-5-20251001","id":"msg_019qDnpneuqrK8vaUGTbMmiN","type":"message","role":"assistant","content":[{"type":"text","text":"Perfect! Now let me create a comprehensive report of my findings:\n\n## Summary: Child Process Spawning Patterns in Paru\n\nI've thoroughly explored the Rust codebase for paru to understand how child processes are spawned and executed. Here are my findings:\n\n### 1. **Core Execution Functions in `src/exec.rs`**\n\nThe codebase has five main wrapper functions that execute commands:\n\n- **`command_status(cmd: &mut Command) -> Result`** (line 81-98)\n - Calls `.status()` on Command\n - Handles signal management (SIGTERM, SIGINT, SIGQUIT)\n - Returns exit code wrapped in Status struct\n\n- **`command(cmd: &mut Command) -> Result<()>`** (line 100-105)\n - Wrapper around command_status for successful execution\n - Ensures exit code is 0\n\n- **`command_output(cmd: &mut Command) -> Result