xle/troggle-unchained
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Refactorise saving code. Do not save and git change if there are no changes

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This commit is contained in:
Martin Green 2022-06-20 22:09:10 +01:00
parent 3420422f29
commit c6272e4103
1 changed files with 50 additions and 34 deletions
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84
core/views/expo.py
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@ -325,40 +325,12 @@ def editexpopage(request, path):
body = body.replace("\r", "")
result = "%s<head%s>%s</head>%s<body%s>\n%s</body>%s" % (preheader, headerargs, head, postheader, bodyargs, body, postbody)
cwd = filepath.parent
filename = filepath.name
git = settings.GIT
# GIT see also core/models/cave.py writetrogglefile()
# GIT see also core/views/uploads.py dwgupload()
try:
with open(os.path.normpath(filepath).encode(sysdefaultencoding), "w", encoding="utf8") as f:
print(f'WRITING{cwd}---{filename} ')
# as the wsgi process www-data, we have group write-access but are not owner, so cannot chmod.
# os.chmod(filepath, 0o664) # set file permissions to rw-rw-r--
f.write(result)
except PermissionError:
message = f'CANNOT save this file.\nPERMISSIONS incorrectly set on server for this file {filename}. Ask a nerd to fix this.'
return render(request,'errors/generic.html', {'message': message})
try:
encoded_filename = filename.encode(sysdefaultencoding)
cp_add = subprocess.run([git, "add", encoded_filename], cwd=cwd, capture_output=True, text=True)
if cp_add.returncode != 0:
msgdata = 'Ask a nerd to fix this.\n\n' + cp_add.stderr + '\n\n' + cp_add.stdout + '\n\nreturn code: ' + str(cp_add.returncode)
message = f'CANNOT git on server for this file {filename}. Edits saved but not added to git.\n\n' + msgdata
return render(request,'errors/generic.html', {'message': message})
cp_commit = subprocess.run([git, "commit", "-m", f'Troggle online: Edit this page - {encoded_filename}'], cwd=cwd, capture_output=True, text=True)
# This produces return code = 1 if it commits OK, but when the repo still needs to be pushed to origin/expoweb
if cp_commit.returncode != 0 and cp_commit.stdout != 'nothing to commit, working tree clean':
msgdata = 'Ask a nerd to fix this.\n\n' + cp_commit.stderr + '\n\n' + cp_commit.stdout + '\n\nreturn code: ' + str(cp_commit.returncode)
message = f'Error code with git on server for this file {filename}. Edits saved, added to git, but NOT committed.\n\n' + msgdata
return render(request,'errors/generic.html', {'message': message})
except subprocess.SubprocessError:
message = f'CANNOT git on server for this file {filename}. Subprocess error. Edits not saved.\nAsk a nerd to fix this.'
return render(request,'errors/generic.html', {'message': message})
if result != html: # Check if content changed
try:
write_and_commit(filepath, content)
except WriteAndCommitError as e:
return render(request,'errors/generic.html', {'message': e.message})
return HttpResponseRedirect(reverse('expopage', args=[path])) # Redirect after POST
else:
if filefound:
@ -373,6 +345,50 @@ def editexpopage(request, path):
pageform = ExpoPageForm({"html": body, "title": "Missing"})
return render(request, 'editexpopage.html', {'path': path, 'form': pageform, })
class WriteAndCommitError(Exception):
def __init__(self, message):
self.message = message
def __str__(self):
return f'WriteAndCommitError: {self.message}'
def write_and_commit(filepath, content):
cwd = filepath.parent
filename = filepath.name
git = settings.GIT
# GIT see also core/models/cave.py writetrogglefile()
# GIT see also core/views/uploads.py dwgupload()
try:
with open(os.path.normpath(filepath).encode(sysdefaultencoding), "w", encoding="utf8") as f:
print(f'WRITING{cwd}---{filename} ')
# as the wsgi process www-data, we have group write-access but are not owner, so cannot chmod.
# os.chmod(filepath, 0o664) # set file permissions to rw-rw-r--
f.write(content)
except PermissionError:
message = f'CANNOT save this file.\nPERMISSIONS incorrectly set on server for this file {filename}. Ask a nerd to fix this.'
raise WriteAndCommitError(message)
try:
encoded_filename = filename.encode(sysdefaultencoding)
cp_add = subprocess.run([git, "add", encoded_filename], cwd=cwd, capture_output=True, text=True)
if cp_add.returncode != 0:
msgdata = 'Ask a nerd to fix this.\n\n' + cp_add.stderr + '\n\n' + cp_add.stdout + '\n\nreturn code: ' + str(cp_add.returncode)
message = f'CANNOT git on server for this file {filename}. Edits saved but not added to git.\n\n' + msgdata
raise WriteAndCommitError(message)
cp_commit = subprocess.run([git, "commit", "-m", f'Troggle online: Edit this page - {encoded_filename}'], cwd=cwd, capture_output=True, text=True)
# This produces return code = 1 if it commits OK, but when the repo still needs to be pushed to origin/expoweb
if cp_commit.returncode != 0 and cp_commit.stdout != 'nothing to commit, working tree clean':
msgdata = 'Ask a nerd to fix this.\n\n' + cp_commit.stderr + '\n\n' + cp_commit.stdout + '\n\nreturn code: ' + str(cp_commit.returncode)
message = f'Error code with git on server for this file {filename}. Edits saved, added to git, but NOT committed.\n\n' + msgdata
raise WriteAndCommitError(message)
except subprocess.SubprocessError:
message = f'CANNOT git on server for this file {filename}. Subprocess error. Edits not saved.\nAsk a nerd to fix this.'
raise WriteAndCommitError(message)
class ExpoPageForm(forms.Form):
'''The form used by the editexpopage function
'''