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Add a branch indicator to the stamp, if we can find one and it's not "master".

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Added by Sam's request.
This commit is contained in:
Eli Barzilay 2012-05-04 20:18:20 -04:00
parent 6e1ee717f7
commit 1fae7942d5
1 changed files with 41 additions and 25 deletions
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66
collects/repo-time-stamp/stamp.rkt
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@ -19,25 +19,28 @@
the expected value for nightly builds.
* "g" -- `archive-id' didn't have information, but we found a git
executable and ran it.
executable and ran it. [*]
* "d" -- an executable was not found either, but a ".git" directory
was found in the usual place, with a "HEAD" file that has eventually
lead to a SHA1. In this case, the time stamp is the stamp of the
git reference file that was used.
git reference file that was used. [*]
* "f" -- none of the above worked, so the last resort was to report
the date of this file (which can provide a rough idea how old the
tree is, but obviously this can be arbitrary). In this case the
SHA1 is missing and will be "-".
[*] In case of "g"/"d", another part is added, indicating the branch
name if one was found and if it isn't "master"; Eg, ".../g/foo".
|#
(define archive-id "$Format:%ct|%h|a$")
;; when exported through `git archive', the above becomes something like
;; "1273562690|cabd414|a"
(require racket/system racket/runtime-path)
(require racket/system racket/runtime-path racket/string)
(define-runtime-path this-dir ".")
(define-runtime-path this-file "stamp.rkt")
@ -46,39 +49,52 @@
(let ([rx:secs+id #rx"^([0-9]+)\\|([0-9a-f]+|-)\\|(.*?)[ \r\n]*$"])
;; info from an archive (incl. nightly builds)
(define (from-archive-id) archive-id)
;; adds a branch name if applicable (and if different from `master')
(define (add-branch str br*)
(define br
(and (string? br*)
(not (member br* '("refs/heads/master" "")))
(regexp-replace #rx"^refs/(?:heads/|remotes/)?" br* "")))
(if br (string-append str "/" br) str))
;; try to run git to get the current info
(define (from-running-git)
(let ([exe (or (find-executable-path "git")
(find-executable-path "git.exe")
(and (eq? 'macosx (system-type))
(find-executable-path "/opt/local/bin/git")))])
(and exe (let ([out (open-output-string)])
(parameterize ([current-output-port out]
[current-error-port out]
[current-input-port (open-input-string "")]
[current-directory this-dir])
(system* exe "log" "-1" "--pretty=format:%ct|%h|g")
(get-output-string out))))))
(define exe
(or (find-executable-path "git")
(find-executable-path "git.exe")
(and (eq? 'macosx (system-type))
(find-executable-path "/opt/local/bin/git"))))
(define (git . args)
(define out (open-output-string))
(parameterize ([current-output-port out]
[current-error-port out]
[current-input-port (open-input-string "")]
[current-directory this-dir])
(apply system* exe args)
(string-trim (get-output-string out))))
(and exe (add-branch (git "log" "-1" "--pretty=format:%ct|%h|g")
(git "rev-parse" "--symbolic-full-name" "HEAD"))))
;; try to find a ".git" directory (can't run git, so conventional
;; guess) and use the sha1 from that file and its date
(define (from-git-dir)
(define git-dir (build-path this-dir 'up 'up ".git"))
(define branch #f)
(let loop ([file (build-path git-dir "HEAD")])
(let ([l (and (file-exists? file)
(call-with-input-file file read-line))])
(cond [(not l) #f]
[(regexp-match #rx"^ref: +(.*)$" l)
=> (lambda (m)
(loop (build-path git-dir (cadr m))))]
[(regexp-match #px"^[[:xdigit:]]{40}$" l)
(format "~a|~a|d"
(file-or-directory-modify-seconds file)
(substring l 0 8))]))))
(define l (and (file-exists? file)
(call-with-input-file file read-line)))
(cond [(not l) #f]
[(regexp-match #rx"^ref: +(.*)$" l)
=> (λ (m) (unless branch (set! branch (cadr m)))
(loop (build-path git-dir (cadr m))))]
[(regexp-match #px"^[[:xdigit:]]{40}$" l)
(add-branch (format "~a|~a|d"
(file-or-directory-modify-seconds file)
(substring l 0 8))
branch)])))
;; fallback: get the date of this file, no id
(define (from-this-file)
(format "~a|-|f" (file-or-directory-modify-seconds this-file)))
(for*/or ([x (list from-archive-id
from-running-git
;; from-running-git
from-git-dir
from-this-file)])
(let* ([x (x)]