i/ dZddlZddlZddlZddlZddlZddlZddlZddlZddl m Z eje Z hdZgdZdededefd Zdededefd Zd ed ed edefdZdedefdZd edefdZd/d edededededef dZe dk(r9ej4ej6dej8dZej=dd !ej=d"d#ej=d$ed%ej=d&ed%ej?Z ee jBZ"ee jBe"e jFe jHe jJ'Z&e'ejPe&d()e&d*d+k(rejRdye&d*d,k(rejRd-yejRd.yy)0uG impact_scanner.py — Reverse impact scanner. Given a set of modified files, extracts symbols (functions/classes) from them, then greps the entire project to find OTHER files that reference those symbols but were NOT modified. Detects cases where a bot modifies file A but misses file B that also references the same symbol. N)Path>idkeydataitemlistnamepathtypeerroreventindexitemspropsstatevalueconfigresultoptionsrequestresponse) node_modulesz.git __pycache__distbuildz .worktreesz.next file_path diff_linesreturnc f t|jdd}tj||}t|}g}tj|D]}t|tjtjtjfs=|rItt|jt!|d|jdz}|j#|s|j%|j&|S#tt f$r#}t jd||gcYd}~Sd}~wwxYw) aExtract function/class symbol names from a Python file using the ast module. If diff_lines is provided, only returns symbols whose definition lines overlap with the changed lines. If diff_lines is empty, returns all top-level function and class names. Args: file_path: Absolute or relative path to the Python source file. diff_lines: List of changed line numbers (1-based). Empty means all. Returns: List of symbol name strings. Empty list on parse error. utf-8replaceencodingerrors)filenamezFailed to parse %s: %sN end_lineno)r read_textastparseOSError SyntaxErrorloggerdebugsetwalk isinstance FunctionDefAsyncFunctionDefClassDefrangelinenogetattr intersectionappendr ) rrsourcetreeexcdiff_setsymbolsnode node_liness -/home/jay/workspace/scripts/impact_scanner.pyextract_symbols_pythonrB si**GI*Nyy)4 :HG"$#2F2F UV  U4;;lDKK0X[\0\]^J**84tyy!" N! [ ! -y#> s3C>>D0 D+%D0+D0ctjd} t|jddj }t|}g}t|dD]@\}}|r||vr |j|} | s!|j| jd B|S#t $r#}t jd||gcYd}~Sd}~wwxYw) a!Extract exported symbol names from a TypeScript/JavaScript file via regex. Matches patterns like: export function Foo, export class Bar, export const baz, etc. If diff_lines is provided, only returns symbols from matching lines. If diff_lines is empty, returns all exported symbols. Args: file_path: Absolute or relative path to the TS/JS source file. diff_lines: List of changed line numbers (1-based). Empty means all. Returns: List of symbol name strings. Empty list on read error. z;export\s+(function|class|type|interface|const|enum)\s+(\w+)r r!r"zFailed to read %s: %sNr')start) recompilerr( splitlinesr+r-r.r/ enumeratesearchr9group) rrpatternlinesr<r=r>r6linematchs rAextract_symbols_typescriptrPDs jjWXGY))79)MXXZ :HG!%q1+  h. t$  NN5;;q> * + N  ,i= s*B C )CC C symbol project_root exclude_filescfgd}tD] }|d|gz } |d|zdz|gz } tj|ddd}t}|D]O}t|} |jt| j|jt| Qg} |jjD]} | jd d } t| dkr$| d | d | d }}} t!|}tt| j}||vs| |vrj| j%| ||j'd| S#tj$rtj d|gcYSt $r#}tj d||gcYd }~Sd }~wwxYw#t"$rYwxYw)aSearch the project for references to a symbol in Python/TS/JS files. Skips node_modules, .git, __pycache__, dist, build, .worktrees, .next directories and also skips the files listed in exclude_files. Args: symbol: The symbol name to search for. project_root: Root directory of the project to search. exclude_files: List of file paths (relative or absolute) to skip. Returns: List of dicts with keys "file", "line", "content". Returns empty list on timeout or error. )grepz-rnz--include=*.pyz--include=*.tsz--include=*.tsxz--include=*.jsz--include=*.jsxz --exclude-dirz\bT)capture_outputtexttimeoutzgrep timed out for symbol '%s'zgrep failed for symbol '%s': %sN:rErr')filerNcontent) EXCLUDE_DIRS subprocessrunTimeoutExpiredr-warningr+r/raddstrresolvestdoutrHsplitlenint ValueErrorr9strip)rQrRrScmddprocr< abs_excludesefpresultsraw_linepartsr lineno_strr\r6abs_files rAgrep_referencesrvhs C$ ##$EFNU "L 11C ~~   5L! HQYY[)*Q ! GKK**,XsA& u:> ).q58U1Xw:  _FtI..01 | #yL'@  6gmmoVWX" NA  $ $7@ 8&#F (   s5E , F$ +F!6F!>FF!F!$ F0/F0 diff_outputcZtjd}t}|j|D]n}t |j d}|j dt |j dnd}t |||zD]}|j|pt|S)aBParse `git diff` output and return added/changed line numbers in the new file. Reads @@ hunk headers of the form @@ -a,b +c,d @@ and collects the range [c, c+d) as changed lines. Args: diff_output: Raw text output of a git diff command. Returns: Sorted list of 1-based line numbers. z&@@ -\d+(?:,\d+)? \+(\d+)(?:,(\d+))? @@r'rE) rFrGr/finditerrhrKr5rbsorted)rwhunk_rerMrOrDcountis rA_parse_diff_linesr~sjjBCG EE!!+.EKKN#',{{1~'AEKKN#queem, A IIaL  %=cTgdgdfD]x} tj||ddd}|jdk(rL|jj Dcgc]#}|j s|j %}}|r|cSzgScc}w#tj tf$rYwxYw)a]Return a list of file paths modified relative to HEAD in the given repo. Tries `git diff --name-only HEAD` first; falls back to `git diff --name-only --cached` if that fails. Args: project_root: Root directory of the git repository. Returns: List of file path strings relative to project_root. Empty on error. )gitdiff --name-onlyHEAD)rrrz--cachedT cwdrWrXrYr)r^r_ returncodererHrjr`r+)rRrkrmffiless rAget_modified_files_from_gitrs /2 >> # D!#,0KK,B,B,DRq RR L$ I S))73   s*AB B(B:B B  B'&B'modified_filestask_id max_symbolsrYctj|z}g}g}g}|D]S} t| } | jst|| z } |j t | j U|D]} tj|k\rtjd|d||dcSt| jst t|| z n| } t| jj} g} tjdddd| g|ddd }|jd k(rt|j}| d k(r t%| |}n*| d vr t'| |}ntj)d| | |Dcgc] }|t*vs |}}|d|}|j-||D]W}tj|k\r tjd|d||dccSt/|||}|j-|Yt1|}|d k(rd}n |d krd}nd}||||dS#tj t"f$rY wxYwcc}w)uOrchestrate symbol extraction and reference scanning for modified files. For each modified file: 1. Determines the language from the extension. 2. Obtains changed line numbers via `git diff HEAD -- `. 3. Extracts symbols, filters common names, limits to max_symbols. 4. Greps the project for references in unmodified files. Gate results: - "PASS" — 0 unmodified references found - "WARN" — 1-5 unmodified references found - "BLOCK" — 6+ unmodified references found Args: project_root: Root directory of the project. modified_files: List of modified file paths (relative to project_root). task_id: Optional task identifier included in the output dict. max_symbols: Maximum number of symbols to check per file. timeout: Overall time budget in seconds. Returns: Dict with keys: task_id, gate_result, unmodified_references, symbols_checked. z(Overall timeout reached; stopping early.WARN)r gate_resultunmodified_referencessymbols_checkedrrrz--Trrrz.py)z.tsz.tsxz.jsz.jsxz,Unsupported extension '%s' for %s; skipping.Nz*Overall timeout reached during grep phase.PASSBLOCK)time monotonicr is_absoluter9rcrdr-rasuffixlowerr^r_rr~rer`r+rBrPr. COMMON_FILTERextendrvrg)rRrrrrYdeadlinerr abs_modifiedmfrprel_filerrrrm raw_symbolssfilteredselectedrQrefs ref_countgates rAscanrs0~~')H"$OL. H}}\"Q&AC ,- . #4/ >> x ' NNE F"%)>#2  ?C8n>X>X>ZC\*X56`h h&&,,.  >>h7 # D!#.t{{; U?0JGK 5 54Y KK LLGQY Z  +E!a}.DAEEL[)x( /F~~8+KL&#)-B'6  #6<FD ! ( ( . /U4/l)*IA~ a!6*  K))73   Fs AH9 II9II__main__z#%(levelname)s %(name)s: %(message)s)levelformatz)Impact Scanner - reverse dependency check) descriptionz--project-rootT)requiredz --task-id)defaultz --max-symbols)r rz --timeout)rrYF) ensure_asciirrrr'rE)rrr)*__doc__argparser)jsonloggingrFr^sysrpathlibr getLogger__name__r-rr]rcrrBrPrvr~rrhdictr basicConfigWARNINGArgumentParserparser add_argument parse_argsargsrRrrrrYrprintdumpsexitrrArs3      8 $ _ !c!t!!H!#!4!D!HCCCsC4CDCL34,cdBfsfDf3fRUfdgfqufR zGgoo6[\ $X $ $1\ ]F (48  R0 c1=  #r:    D01B1BCN   $$ F *$**V% 01 m&  & (  5r