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path: root/bn_django/git_browse/models.py
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from django.db import models
from django.conf import settings
from django.utils.translation import ugettext as _

try:
    GITCOMMAND = settings.GITCOMMAND
except AttributeError:
    GITCOMMAND='git'

try:
    ADMIN_URL = settings.ADMIN_URL
except AttributeError:
    ADMIN_URL='/admin'
if ADMIN_URL[-1] == '/':
    ADMIN_URL=ADMIN_URL[:-1]


# Create your models here.
class Repository(models.Model):
#    path = models.FilePathField("relative path to repository", \
#            path=GITBROWSE_BASE,recursive=True,match="\.git$",unique=True, \
#            blank=False)
    path = models.CharField("path to git dir", max_length=386, unique=True,\
            blank=False, default="/srv/git/")
    name = models.CharField(_("name"), max_length=80, unique=True)
    slug = models.SlugField("short description of repo", unique=True,\
            blank=False)
    git_version = models.CharField(_("git version"), max_length=100, \
            default="git version 1.4.4", blank=True, \
            help_text="Output of \'git --version\'")

    description = models.TextField("description of repo",blank=True)

    class Admin: 
        list_display = ['name', 'slug', 'path']
        ordering = ['name']
    def __str__(self):
        return self.name
    def get_absolute_url(self):
        return "/code/%s/" % self.slug
    def get_admin_url(self):
        return "%s/code/repository/%s/" % (ADMIN_URL, self.slug)

    def getGITPREFIX(self):
        """returns the glued together combination of GITCOMMAND and
           GITBROWSE_BASE needed to call git commands on this repository"""
        return 'cd ' + str(self.path) + '; ' + str(GITCOMMAND) + ' --git-dir='\
            + str(self.path)

    def scan(self):
        import os
        GITPREFIX = self.getGITPREFIX()
        heads = dict()
        for h in os.listdir(self.path + '/refs/heads/'):
            f = open(self.path + '/refs/heads/' + h,'r')
            heads[h.strip()] = f.readline().strip()
            f.close()
        tags = dict()
        for t in os.listdir(self.path + '/refs/tags/'):
            f = open(self.path + '/refs/tags/' + t,'r')
            tags[t.strip()] = f.readline().strip()
            f.close()
        return (GITPREFIX, heads, tags)

    def shortlog(self):
        import commands
        GITPREFIX = self.getGITPREFIX()
        logtxt = commands.getoutput(GITPREFIX \
                + ' log --relative-date --max-count=6 | cat')
        log_items = logtxt.split('\ncommit ')
        if (log_items[0] == ''):
            log_items.pop(0)
        if (log_items[0].startswith('commit ')):
            log_items[0] = log_items[0][7:]
        shortlog = list()
        for li in log_items:
            logobj = dict()
            lines = li.splitlines()
            if len(lines) < 3: continue
            logobj['hash'] = lines[0].strip()
            logobj['shorthash'] = lines[0].strip()[:5]
            logobj['author'] = lines[1][8:]
            logobj['date'] = lines[2][8:]
            if len(lines) > 4:
                logobj['description'] = lines[4][4:]
            else:
                logobj['description'] = '(none)'
            # here we truncate commit comments for shortlogs
            logobj['shortdescription'] = logobj['description'][:128]
            shortlog.append(logobj)
        return shortlog

class Tree(models.Model):
    repo = models.ForeignKey(Repository)
    mode = models.CharField("file mode/permissions", blank=False,max_length=4)
    path = models.CharField("relative path from repo base", max_length=512)
    id = models.CharField("hash", max_length=40,blank=False,primary_key=True)
    name = models.CharField("name of dir", max_length=128,blank=False)
    type = 'tree'

    class Admin: 
        list_display = ['path','name','repo', 'id']
        ordering = ['repo','path']
        list_filter = ['repo','path']

    def __str__(self):
        return self.name
    def get_absolute_url(self):
        return "/code/%s/tree/%s/" % (self.repo.slug, self.hash)
    def get_admin_url(self):
        return "%s/code/tree/%s/" % (ADMIN_URL, self.id)

    def update(self):
        import commands
        if (not self.id): return

        GITPREFIX = self.repo.getGITPREFIX()

        self.id = self.id.strip()
        tree_ls = commands.getoutput(GITPREFIX + ' ls-tree --full-name ' \
                + self.id)
        tree_objs = list()
        blob_objs = list()
        for line in tree_ls.splitlines():
            l = line.split()
            if len(l) < 4:
                continue
            if l[1] == 'tree':
                t = Tree(id=l[2])
                t.path = ' '.join(l[3:])
                if self.path and self.path != '/':
                    t.path = self.path + '/' + t.path
                t.name = t.path
                tree_objs.append(t)
            if l[1] == 'blob':
                b = Blob(id=l[2])
                b.path = ' '.join(l[3:])
                if self.path and self.path != '/':
                    b.path = self.path + '/' + b.path
                b.name=b.path
                blob_objs.append(b)
        self.tree_objs = tree_objs
        self.blob_objs = blob_objs
        self.all_objs = tree_objs + blob_objs

def tree_from_str(s):
    s = s.split();
    if len(s) != 4: return 
    return Tree(mode=s[0],id=s[2],name=s[3])

class Blob(models.Model):
    repo = models.ForeignKey(Repository)
    mode = models.CharField("file mode/permissions", blank=False,max_length=4)
    path = models.CharField("relative path from repo base", max_length=512)
    id = models.CharField("hash", max_length=40,blank=False,primary_key=True)
    name = models.CharField("name of dir", max_length=128,blank=False)
    size = models.IntegerField("filesize in byte", max_length=128,blank=False)
    contents = models.TextField("ASCII contents of the file")
    type='blob'

    class Admin: 
        list_filter = ['repo','path']
        list_display = ['name','path','id','size','repo']
        search_fields = ['contents']
        ordering = ['repo','path','name']
    def __str__(self):
        return self.name
    def get_absolute_url(self):
        return "/code/%s/blob/%s/" % (self.repo.slug, self.hash)
    def get_admin_url(self):
        return "%s/code/blob/%s/" % (ADMIN_URL, self.id)
    
    def update(self):
        import commands
        if (not self.id) or (not self.repo): return
        
        GITPREFIX = self.repo.getGITPREFIX()

        self.id = self.id.strip()
        self.contents = commands.getoutput(GITPREFIX + ' cat-file -p  ' \
                + self.id) 
        self.size = commands.getoutput(GITPREFIX + ' cat-file -s  ' + self.id)
        return

def blob_from_str(s):
    s = s.split();
    if len(s) != 4: return
    return Blob(mode=s[0],id=s[2],name=s[3])

class Commit(models.Model):
    repo = models.ForeignKey(Repository)
    id = models.CharField("hash", max_length=40,blank=False,primary_key=True)
    rawdiff = models.TextField("ASCII contents of full commit diff")
    commit_date = models.DateField("Date of commit to repository")
    author_date = models.DateField("Date commit was writen/created")
    author = models.CharField("Name of commit author", max_length=96)
    author_email = models.CharField("Email address of commit author", \
        max_length=196)
    committer = models.CharField("Name of committer", max_length=96)
    committer_email = models.CharField("Email address of committer", \
        max_length=196)
    comment = models.TextField("Notes on the commit")
    parenthash = models.CharField("parent's hash", max_length=40)
    #TODO: parent = models.ForeignKey()
    treehash = models.CharField("tree object's hash", max_length=40)
    tree = models.ForeignKey(Tree)
    type='commit'

    class Admin: 
        list_filter = ['repo']
        list_display = ['id', 'commit_date', 'author', 'repo']
        ordering = ['repo','commit_date','author_date','author']
    def __str__(self):
        return self.id
    def get_absolute_url(self):
        return "/code/%s/commit/%s/" % (self.repo.slug, self.hash)
    def get_admin_url(self):
        return "%s/code/commit/%s/" % (ADMIN_URL, self.id)
    
    def update(self):
        import commands,time
        if (not self.id) or (not self.repo): return
        
        GITPREFIX = self.repo.getGITPREFIX()

        self.id = self.id.strip()
        raw = commands.getoutput(GITPREFIX + ' cat-file -p  ' + self.id)
        
        raw = raw.splitlines()
        if len(raw) < 3: return 
        self.treehash = raw[0].split()[-1].strip()
        if not raw[1].startswith('parent'):
            raw.insert(1, 'parent  ')
        self.parenthash = raw[1][6:].strip()
        if raw[2].startswith('author'):
            self.author = raw[2].split()[1]
            self.author_date = time.ctime(int(raw[2].split()[-2]))
        elif raw[3].startswith('author'):
            self.author = raw[3].split()[1]
            self.author_date = time.ctime(int(raw[3].split()[-2]))
        elif raw[4].startswith('author'):
            self.author = raw[4].split()[1]
            self.author_date = time.ctime(int(raw[4].split()[-2]))
        else: return
        self.committer = raw[3].split()[1]
        self.committer_date = time.ctime(int(raw[3].split()[-2]))
        self.rawdiff = commands.getoutput(GITPREFIX + ' diff ' \
                + self.parenthash + ' ' + self.id + ' | cat')
        if len(raw) > 4:
            for l in raw[4:]:
                self.comment += str(l) + '\n'
        else:
            self.comment = '(none)'
        return

from django.contrib import admin

admin.site.register(Repository)
admin.site.register(Tree)
admin.site.register(Blob)
admin.site.register(Commit)