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-rw-r--r--README.gmi21
-rwxr-xr-xgnbug178
2 files changed, 199 insertions, 0 deletions
diff --git a/README.gmi b/README.gmi
index dd4d70a..100b5f2 100644
--- a/README.gmi
+++ b/README.gmi
@@ -23,3 +23,24 @@ We will soon add a web readable version of
Other discussions on leaving github
=> https://github.com/bitcoin-core/bitcoin-devwiki/wiki/GitHub-alternatives-for-Bitcoin-Core
+
+## gnbug
+
+You may peruse the issues in this repository using the provided gnbug command-line interface. gnbug requires guile. Please install guile before running gnbug.
+
+List all issues.
+```
+./gnbug list
+```
+
+Only list issues assigned to pjotrp.
+```
+./gnbug list --assigned=pjotrp
+```
+
+List issues that were created or updated in the last 3 days, in the last week or month respectively. The --since argument is passed directly to `git log`. Therefore, gnbug understands any --since argument that `git log` understands.
+```
+./gnubug news --since='3 days'
+./gnubug news --since='1 week'
+./gnubug news --since='1 month'
+```
diff --git a/gnbug b/gnbug
new file mode 100755
index 0000000..31e75fe
--- /dev/null
+++ b/gnbug
@@ -0,0 +1,178 @@
+#! /usr/bin/env guile
+!#
+
+(import (srfi srfi-26)
+ (srfi srfi-37)
+ (srfi srfi-171)
+ (ice-9 ftw)
+ (ice-9 match)
+ (ice-9 popen)
+ (ice-9 rdelim))
+
+(define (invoke program . args)
+ (unless (zero? (apply system* program args))
+ (error "Invocation of program failed" (cons program args))))
+
+(define (call-with-input-pipe proc program . args)
+ "Execute PROGRAM ARGS ... in a subprocess with a pipe to it. Call
+PROC with an input port to that pipe. Close the pipe once PROC exits,
+even if it exits non-locally. Return the value returned by PROC."
+ (let ((port #f))
+ (dynamic-wind (lambda () (set! port (apply open-pipe* OPEN_READ program args)))
+ (cut proc port)
+ (lambda ()
+ (let ((return-value (status:exit-val (close-pipe port))))
+ (unless (and return-value
+ (zero? return-value))
+ (error "Invocation of program failed" (cons program args))))))))
+
+(define* (find-files directory #:optional (pred (const #t)))
+ "Recursively find all files under DIRECTORY that satisfy PRED."
+ (define (do-nothing name stat result)
+ result)
+
+ (file-system-fold (const #t)
+ (lambda (name stat result)
+ (if (pred name stat)
+ (cons name result)
+ result))
+ do-nothing
+ do-nothing
+ do-nothing
+ (lambda (name stat errno result)
+ (error (strerror errno) name))
+ '()
+ directory))
+
+(define (assignees file)
+ "Return the list of assignees in gemini FILE."
+ (call-with-input-file file
+ (lambda (port)
+ (port-transduce (compose
+ (tfilter (cut string-prefix? "* assigned:" <>))
+ (tappend-map (lambda (line)
+ (map (cut string-trim-both <>)
+ (string-split
+ (substring line (string-length "* assigned:"))
+ #\,)))))
+ rcons
+ read-line
+ port))))
+
+(define (git-updated-files transducer start-commit end-commit)
+ "Use TRANSDUCER to transduce over the list of files updated between
+START-COMMIT and END-COMMIT."
+ (call-with-input-pipe
+ (lambda (port)
+ (port-transduce (compose (tmap (lambda (line)
+ (match (string-split line #\tab)
+ ((status file)
+ (list (match status
+ ("A" 'added)
+ ("D" 'deleted)
+ ("M" 'modified))
+ file)))))
+ transducer)
+ (const #t) read-line port))
+ "git" "diff" "--stat" "--name-status"
+ (string-append start-commit ".." end-commit)))
+
+(define rlast
+ (case-lambda
+ (() #f)
+ ((result) result)
+ ((result input) input)))
+
+(define (git-first-commit-since since)
+ "Return the hash of the first git commit since SINCE, where SINCE is
+passed verbatim to the --since argument of `git log'. Return #f if
+there is no such commit."
+ (call-with-input-pipe
+ (lambda (port)
+ (port-transduce (tmap identity)
+ rlast
+ read-line
+ port))
+ "git" "log" "--format=format:%H" "--since" since))
+
+(define (color code str)
+ "Return STR within ANSI escape CODE, thus rendering it in color in a
+terminal."
+ (format #f "~a[~am~a~a[0m" #\esc code str #\esc))
+
+(define red (cut color 31 <>))
+(define green (cut color 32 <>))
+(define magenta (cut color 35 <>))
+(define blue (cut color 34 <>))
+(define cyan (cut color 36 <>))
+
+(define (invalid-option name arg loads)
+ (error "Invalid option" name))
+
+(define (invalid-operand arg loads)
+ (error "Invalid argument" arg))
+
+(define main
+ (match-lambda*
+ ((_ "news" args ...)
+ (let ((args (args-fold args
+ (list (option (list "since") #t #f
+ (lambda (opt name arg loads)
+ (acons 'since arg loads))))
+ invalid-option
+ invalid-operand
+ '())))
+ (unless (assq 'since args)
+ (error "--since argument required"))
+ (git-updated-files (tlog (match-lambda*
+ ((_ (status file))
+ (format #t ((case status
+ ((added) green)
+ ((deleted) red)
+ ((modified) magenta))
+ "~a (~a)~%")
+ file
+ (case status
+ ((added) "new")
+ ((deleted) "deleted")
+ ((modified) "updated"))))))
+ (or (git-first-commit-since (assq-ref args 'since))
+ "HEAD")
+ "HEAD")))
+ ((_ "list" args ...)
+ (let ((args (args-fold args
+ (list (option (list "assigned") #t #f
+ (lambda (opt name arg loads)
+ (acons 'assigned arg loads))))
+ invalid-option
+ invalid-operand
+ '())))
+ (format #t "~%total ~a~%"
+ (list-transduce (compose (tmap (lambda (file)
+ (list (substring file (string-length "./"))
+ (assignees file))))
+ (tfilter (match-lambda
+ ((_ assignees)
+ (or (not (assq 'assigned args))
+ (member (assq-ref args 'assigned) assignees)))))
+ (tlog (match-lambda*
+ ((_ (file ()))
+ (format #t "~a~%" file))
+ ((_ (file assignees))
+ (format #t "~a ~a~%"
+ file
+ (magenta (string-append "(assigned: "
+ (string-join assignees ", ")
+ ")")))))))
+ rcount
+ ;; Get all gemini files except
+ ;; README.gmi and hidden files. Text
+ ;; editors tend to create hidden files
+ ;; while editing, and we want to avoid
+ ;; them.
+ (find-files "." (lambda (name _)
+ (and (string-suffix? ".gmi" name)
+ (not (string=? (basename name) "README.gmi"))
+ (not (string-prefix? "." (basename name))))))))))))
+
+(apply main (command-line))