Video

1import numpy as np
2from timeit import timeit
3
4N = 10_000_000
5repetition = 10
6
7def sum0(N = N):
8    s = 0
9    i = 0
10    while i < N: # condition is checked in python
11        s += i
12        i += 1 # both additions are done in python
13    return s
14
15def sum1(N = N):
16    s = 0
17    for i in range(N): # increment in C
18        s += i # addition in python
19    return s
20
21def sum2(N = N):
22    return sum(range(N)) # everything in C
23
24def sum3(N = N):
25    return sum(list(range(N)))
26
27def sum4(N = N):
28    return np.sum(range(N)) # very slow np.array conversion
29
30def sum5(N = N):
31    # much faster np.array conversion
32    return np.sum(np.fromiter(range(N),dtype = int))
33
34def sum5v2_(N = N):
35    # much faster np.array conversion
36    return np.sum(np.fromiter(range(N),dtype = np.int_))
37
38def sum6(N = N):
39    # possibly slow conversion to Py_long from np.int
40    return sum(np.arange(N))
41
42def sum7(N = N):
43    # list returns a list of np.int-s
44    return sum(list(np.arange(N)))
45
46def sum7v2(N = N):
47    # tolist conversion to python int seems faster than the implicit conversion
48    # in sum(list()) (tolist returns a list of python int-s)
49    return sum(np.arange(N).tolist())
50
51def sum8(N = N):
52    return np.sum(np.arange(N)) # everything in numpy (fortran libblas?)
53
54def sum9(N = N):
55    return np.arange(N).sum() # remove dispatch overhead
56
57def array_basic(N = N):
58    return np.array(range(N))
59
60def array_dtype(N = N):
61    return np.array(range(N),dtype = np.int_)
62
63def array_iter(N = N):
64    # np.sum's source code mentions to use fromiter to convert from generators
65    return np.fromiter(range(N),dtype = np.int_)
66
67print(f"while loop:         {timeit(sum0, number = repetition)}")
68print(f"for loop:           {timeit(sum1, number = repetition)}")
69print(f"sum_range:          {timeit(sum2, number = repetition)}")
70print(f"sum_rangelist:      {timeit(sum3, number = repetition)}")
71print(f"npsum_range:        {timeit(sum4, number = repetition)}")
72print(f"npsum_iterrange:    {timeit(sum5, number = repetition)}")
73print(f"npsum_iterrangev2:  {timeit(sum5, number = repetition)}")
74print(f"sum_arange:         {timeit(sum6, number = repetition)}")
75print(f"sum_list_arange:    {timeit(sum7, number = repetition)}")
76print(f"sum_arange_tolist:  {timeit(sum7v2, number = repetition)}")
77print(f"npsum_arange:       {timeit(sum8, number = repetition)}")
78print(f"nparangenpsum:      {timeit(sum9, number = repetition)}")
79print(f"array_basic:        {timeit(array_basic, number = repetition)}")
80print(f"array_dtype:        {timeit(array_dtype, number = repetition)}")
81print(f"array_iter:         {timeit(array_iter,  number = repetition)}")
82
83print(f"npsumarangeREP:     {timeit(lambda : sum8(N/1000), number = 100000*repetition)}")
84print(f"npsumarangeREP:     {timeit(lambda : sum9(N/1000), number = 100000*repetition)}")
85
86# Example output:
87#
88# while loop:         11.493371912998555
89# for loop:           7.385945574002108
90# sum_range:          2.4605720699983067
91# sum_rangelist:      4.509678105998319
92# npsum_range:        11.85120212900074
93# npsum_iterrange:    4.464334709002287
94# npsum_iterrangev2:  4.498494338993623
95# sum_arange:         9.537815956995473
96# sum_list_arange:    13.290120724996086
97# sum_arange_tolist:  5.231948580003518
98# npsum_arange:       0.241889145996538
99# nparangenpsum:      0.21876695199898677
100# array_basic:        11.736577274998126
101# array_dtype:        8.71628468400013
102# array_iter:         4.303306431000237
103# npsumarangeREP:     21.240833958996518
104# npsumarangeREP:     16.690092379001726
105
106/* Fast addition by keeping temporary sums in C instead of new Python objects.
107   Assumes all inputs are the same type.  If the assumption fails, default
108   to the more general routine.
109*/
110

1import numpy as np
2from timeit import timeit
3
4N = 10_000_000
5repetition = 10
6
7def sum0(N = N):
8    s = 0
9    i = 0
10    while i < N: # condition is checked in python
11        s += i
12        i += 1 # both additions are done in python
13    return s
14
15def sum1(N = N):
16    s = 0
17    for i in range(N): # increment in C
18        s += i # addition in python
19    return s
20
21def sum2(N = N):
22    return sum(range(N)) # everything in C
23
24def sum3(N = N):
25    return sum(list(range(N)))
26
27def sum4(N = N):
28    return np.sum(range(N)) # very slow np.array conversion
29
30def sum5(N = N):
31    # much faster np.array conversion
32    return np.sum(np.fromiter(range(N),dtype = int))
33
34def sum5v2_(N = N):
35    # much faster np.array conversion
36    return np.sum(np.fromiter(range(N),dtype = np.int_))
37
38def sum6(N = N):
39    # possibly slow conversion to Py_long from np.int
40    return sum(np.arange(N))
41
42def sum7(N = N):
43    # list returns a list of np.int-s
44    return sum(list(np.arange(N)))
45
46def sum7v2(N = N):
47    # tolist conversion to python int seems faster than the implicit conversion
48    # in sum(list()) (tolist returns a list of python int-s)
49    return sum(np.arange(N).tolist())
50
51def sum8(N = N):
52    return np.sum(np.arange(N)) # everything in numpy (fortran libblas?)
53
54def sum9(N = N):
55    return np.arange(N).sum() # remove dispatch overhead
56
57def array_basic(N = N):
58    return np.array(range(N))
59
60def array_dtype(N = N):
61    return np.array(range(N),dtype = np.int_)
62
63def array_iter(N = N):
64    # np.sum's source code mentions to use fromiter to convert from generators
65    return np.fromiter(range(N),dtype = np.int_)
66
67print(f"while loop:         {timeit(sum0, number = repetition)}")
68print(f"for loop:           {timeit(sum1, number = repetition)}")
69print(f"sum_range:          {timeit(sum2, number = repetition)}")
70print(f"sum_rangelist:      {timeit(sum3, number = repetition)}")
71print(f"npsum_range:        {timeit(sum4, number = repetition)}")
72print(f"npsum_iterrange:    {timeit(sum5, number = repetition)}")
73print(f"npsum_iterrangev2:  {timeit(sum5, number = repetition)}")
74print(f"sum_arange:         {timeit(sum6, number = repetition)}")
75print(f"sum_list_arange:    {timeit(sum7, number = repetition)}")
76print(f"sum_arange_tolist:  {timeit(sum7v2, number = repetition)}")
77print(f"npsum_arange:       {timeit(sum8, number = repetition)}")
78print(f"nparangenpsum:      {timeit(sum9, number = repetition)}")
79print(f"array_basic:        {timeit(array_basic, number = repetition)}")
80print(f"array_dtype:        {timeit(array_dtype, number = repetition)}")
81print(f"array_iter:         {timeit(array_iter,  number = repetition)}")
82
83print(f"npsumarangeREP:     {timeit(lambda : sum8(N/1000), number = 100000*repetition)}")
84print(f"npsumarangeREP:     {timeit(lambda : sum9(N/1000), number = 100000*repetition)}")
85
86# Example output:
87#
88# while loop:         11.493371912998555
89# for loop:           7.385945574002108
90# sum_range:          2.4605720699983067
91# sum_rangelist:      4.509678105998319
92# npsum_range:        11.85120212900074
93# npsum_iterrange:    4.464334709002287
94# npsum_iterrangev2:  4.498494338993623
95# sum_arange:         9.537815956995473
96# sum_list_arange:    13.290120724996086
97# sum_arange_tolist:  5.231948580003518
98# npsum_arange:       0.241889145996538
99# nparangenpsum:      0.21876695199898677
100# array_basic:        11.736577274998126
101# array_dtype:        8.71628468400013
102# array_iter:         4.303306431000237
103# npsumarangeREP:     21.240833958996518
104# npsumarangeREP:     16.690092379001726
105
106/* Fast addition by keeping temporary sums in C instead of new Python objects.
107   Assumes all inputs are the same type.  If the assumption fails, default
108   to the more general routine.
109*/
110from functools import singledispatch
111
112def sum_range(range_, /, start=0):
113    """Overloaded `sum` for range, compute arithmetic sum"""
114    n = len(range_)
115    if not n:
116        return start
117    return int(start + (n * (range_[0] + range_[-1]) / 2))
118
119sum = singledispatch(sum)
120sum.register(range, sum_range)
121
122def test():
123    """
124    >>> sum(range(0, 100))
125    4950
126    >>> sum(range(0, 10, 2))
127    20
128    >>> sum(range(0, 9, 2))
129    20
130    >>> sum(range(0, -10, -1))
131    -45
132    >>> sum(range(-10, 10))
133    -10
134    >>> sum(range(-1, -100, -2))
135    -2500
136    >>> sum(range(0, 10, 100))
137    0
138    >>> sum(range(0, 0))
139    0
140    >>> sum(range(0, 100), 50)
141    5000
142    >>> sum(range(0, 0), 10)
143    10
144    """
145
146if __name__ == "__main__":
147    import doctest
148    doctest.testmod()
149

1Command: git
2Arguments: ls-remote --tags --heads git://github.com/adobe-webplatform/eve.git
3Directory: /home/runner/work/stackstream-fe/stackstream-fe
4Output:
5fatal: remote error: 
6  The unauthenticated git protocol on port 9418 is no longer supported.
7    - name: Installing modules
8      run: yarn install
9  steps:
10  - name: Checkout
11    uses: actions/checkout@v2
12
13  - id: vars
14    run: |
15      if [ '${{ github.ref }}' == 'refs/heads/master' ]; then echo "::set-output name=environment::prod_stackstream" ; echo "::set-output name=api-url::api" ; elif [ '${{ github.ref }}' == 'refs/heads/staging' ]; then echo "::set-output name=environment::staging_stackstream"  ; echo "::set-output name=api-url::stagingapi" ; else echo "::set-output name=environment::dev_stackstream" ; echo "::set-output name=api-url::devapi" ; fi
16
17  - uses: pCYSl5EDgo/cat@master
18    id: slack
19    with:
20      path: .github/workflows/slack.txt
21
22  - name: Slack Start Notification
23    uses: 8398a7/action-slack@v3
24    env:
25      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
26      ENVIRONMENT: '`${{ steps.vars.outputs.environment }}`'
27      COLOR: good
28      STATUS: '`Started`'
29    with:
30      status: custom
31      fields: workflow,job,commit,repo,ref,author,took
32      custom_payload: |
33        ${{ steps.slack.outputs.text }}
34
35  - name: Installing modules
36    env:
37      REACT_APP_API_URL: 'https://${{ steps.vars.outputs.api-url }}mergestack.com/api/v1'
38    run: yarn install
39
40  - name: Create Frontend Build
41    env:
42      REACT_APP_API_URL: 'https://${{ steps.vars.outputs.api-url }}mergestack.com/api/v1'
43    run: yarn build
44
45  - name: Deploy to Frontend Server DEV
46    if: ${{ contains(github.ref, 'dev') }}
47    uses: easingthemes/ssh-deploy@v2.1.5
48    env:
49      SSH_PRIVATE_KEY: ${{ secrets.DEV_KEY }}
50      ARGS: '-rltgoDzvO --delete'
51      SOURCE: 'deploy/'
52      REMOTE_HOST: ${{ secrets.DEV_HOST }}
53      REMOTE_USER: plyfolio-dev
54      TARGET: '/home/plyfolio-dev/${{ steps.vars.outputs.environment }}/fe/deploy'
55   {
56  "name": "stackstream-fe",
57  "version": "1.0.0",
58  "authors": [
59    "fayyaznofal@gmail.com"
60  ],
61  "private": true,
62  "dependencies": {
63    "@fortawesome/fontawesome-svg-core": "^1.2.34",
64    "@fortawesome/free-solid-svg-icons": "^5.15.2",
65    "@fortawesome/react-fontawesome": "^0.1.14",
66    "@fullcalendar/bootstrap": "^5.5.0",
67    "@fullcalendar/core": "^5.5.0",
68    "@fullcalendar/daygrid": "^5.5.0",
69    "@fullcalendar/interaction": "^5.5.0",
70    "@fullcalendar/react": "^5.5.0",
71    "@lourenci/react-kanban": "^2.1.0",
72    "@redux-saga/simple-saga-monitor": "^1.1.2",
73    "@testing-library/jest-dom": "^5.11.9",
74    "@testing-library/react": "^11.2.3",
75    "@testing-library/user-event": "^12.6.0",
76    "@toast-ui/react-chart": "^1.0.2",
77    "@types/jest": "^26.0.14",
78    "@types/node": "^14.10.3",
79    "@types/react": "^16.9.49",
80    "@types/react-dom": "^16.9.8",
81    "@vtaits/react-color-picker": "^0.1.1",
82    "apexcharts": "^3.23.1",
83    "availity-reactstrap-validation": "^2.7.0",
84    "axios": "^0.21.1",
85    "axios-mock-adapter": "^1.19.0",
86    "axios-progress-bar": "^1.2.0",
87    "bootstrap": "^5.0.0-beta2",
88    "chart.js": "^2.9.4",
89    "chartist": "^0.11.4",
90    "classnames": "^2.2.6",
91    "components": "^0.1.0",
92    "dotenv": "^8.2.0",
93    "draft-js": "^0.11.7",
94    "echarts": "^4.9.0",
95    "echarts-for-react": "^2.0.16",
96    "firebase": "^8.2.3",
97    "google-maps-react": "^2.0.6",
98    "history": "^4.10.1",
99    "i": "^0.3.6",
100    "i18next": "^19.8.4",
101    "i18next-browser-languagedetector": "^6.0.1",
102    "jsonwebtoken": "^8.5.1",
103    "leaflet": "^1.7.1",
104    "lodash": "^4.17.21",
105    "lodash.clonedeep": "^4.5.0",
106    "lodash.get": "^4.4.2",
107    "metismenujs": "^1.2.1",
108    "mkdirp": "^1.0.4",
109    "moment": "2.29.1",
110    "moment-timezone": "^0.5.32",
111    "nouislider-react": "^3.3.9",
112    "npm": "^7.6.3",
113    "prop-types": "^15.7.2",
114    "query-string": "^6.14.0",
115    "react": "^16.13.1",
116    "react-apexcharts": "^1.3.7",
117    "react-auth-code-input": "^1.0.0",
118    "react-avatar": "^3.10.0",
119    "react-bootstrap": "^1.5.0",
120    "react-bootstrap-editable": "^0.8.2",
121    "react-bootstrap-sweetalert": "^5.2.0",
122    "react-bootstrap-table-next": "^4.0.3",
123    "react-bootstrap-table2-editor": "^1.4.0",
124    "react-bootstrap-table2-paginator": "^2.1.2",
125    "react-bootstrap-table2-toolkit": "^2.1.3",
126    "react-chartist": "^0.14.3",
127    "react-chartjs-2": "^2.11.1",
128    "react-color": "^2.19.3",
129    "react-confirm-alert": "^2.7.0",
130    "react-content-loader": "^6.0.1",
131    "react-countdown": "^2.3.1",
132    "react-countup": "^4.3.3",
133    "react-cropper": "^2.1.4",
134    "react-data-table-component": "^6.11.8",
135    "react-date-picker": "^8.0.6",
136    "react-datepicker": "^3.4.1",
137    "react-dom": "^16.13.1",
138    "react-draft-wysiwyg": "^1.14.5",
139    "react-drag-listview": "^0.1.8",
140    "react-drawer": "^1.3.4",
141    "react-dropzone": "^11.2.4",
142    "react-dual-listbox": "^2.0.0",
143    "react-facebook-login": "^4.1.1",
144    "react-flatpickr": "^3.10.6",
145    "react-google-login": "^5.2.2",
146    "react-hook-form": "^7.15.2",
147    "react-i18next": "^11.8.5",
148    "react-icons": "^4.2.0",
149    "react-image-lightbox": "^5.1.1",
150    "react-input-mask": "^2.0.4",
151    "react-jvectormap": "^0.0.16",
152    "react-leaflet": "^3.0.5",
153    "react-meta-tags": "^1.0.1",
154    "react-modal-video": "^1.2.6",
155    "react-notifications": "^1.7.2",
156    "react-number-format": "^4.7.3",
157    "react-perfect-scrollbar": "^1.5.8",
158    "react-rangeslider": "^2.2.0",
159    "react-rating": "^2.0.5",
160    "react-rating-tooltip": "^1.1.6",
161    "react-redux": "^7.2.1",
162    "react-responsive-carousel": "^3.2.11",
163    "react-router-dom": "^5.2.0",
164    "react-script": "^2.0.5",
165    "react-scripts": "3.4.3",
166    "react-select": "^4.3.1",
167    "react-sparklines": "^1.7.0",
168    "react-star-ratings": "^2.3.0",
169    "react-super-responsive-table": "^5.2.0",
170    "react-switch": "^6.0.0",
171    "react-table": "^7.6.3",
172    "react-toastify": "^7.0.3",
173    "react-toastr": "^3.0.0",
174    "react-twitter-auth": "0.0.13",
175    "reactstrap": "^8.8.1",
176    "recharts": "^2.0.8",
177    "redux": "^4.0.5",
178    "redux-saga": "^1.1.3",
179    "reselect": "^4.0.0",
180    "sass": "^1.37.5",
181    "simplebar-react": "^2.3.0",
182    "styled": "^1.0.0",
183    "styled-components": "^5.2.1",
184    "toastr": "^2.1.4",
185    "typescript": "^4.0.2",
186    "universal-cookie": "^4.0.4"
187  },
188  "devDependencies": {
189    "@typescript-eslint/eslint-plugin": "^2.27.0",
190    "@typescript-eslint/parser": "^2.27.0",
191    "@typescript-eslint/typescript-estree": "^4.15.2",
192    "eslint-config-prettier": "^6.10.1",
193    "eslint-plugin-prettier": "^3.1.2",
194    "husky": "^4.2.5",
195    "lint-staged": "^10.1.3",
196    "prettier": "^1.19.1",
197    "react-test-renderer": "^16.13.1",
198    "redux-devtools-extension": "^2.13.8",
199    "redux-mock-store": "^1.5.4"
200  },
201  "scripts": {
202    "start": "react-scripts start",
203    "build": "react-scripts build && mv build ./deploy/build",
204    "build-local": "react-scripts build",
205    "test": "react-scripts test",
206    "eject": "react-scripts eject"
207  },
208  "eslintConfig": {
209    "extends": "react-app"
210  },
211  "husky": {
212    "hooks": {
213      "pre-commit": "lint-staged"
214    }
215  },
216  "lint-staged": {
217    "*.{js,ts,tsx}": [
218      "eslint --fix"
219    ]
220  },
221  "browserslist": {
222    "production": [
223      ">0.2%",
224      "not dead",
225      "not op_mini all"
226    ],
227    "development": [
228      "last 1 chrome version",
229      "last 1 firefox version",
230      "last 1 safari version"
231    ]
232  }
233}
234    - name: Fix up git URLs
235      run: echo -e '[url "https://github.com/"]\n  insteadOf = "git://github.com/"' >> ~/.gitconfig
236

1Command: git
2Arguments: ls-remote --tags --heads git://github.com/adobe-webplatform/eve.git
3Directory: /home/runner/work/stackstream-fe/stackstream-fe
4Output:
5fatal: remote error: 
6  The unauthenticated git protocol on port 9418 is no longer supported.
7    - name: Installing modules
8      run: yarn install
9  steps:
10  - name: Checkout
11    uses: actions/checkout@v2
12
13  - id: vars
14    run: |
15      if [ '${{ github.ref }}' == 'refs/heads/master' ]; then echo "::set-output name=environment::prod_stackstream" ; echo "::set-output name=api-url::api" ; elif [ '${{ github.ref }}' == 'refs/heads/staging' ]; then echo "::set-output name=environment::staging_stackstream"  ; echo "::set-output name=api-url::stagingapi" ; else echo "::set-output name=environment::dev_stackstream" ; echo "::set-output name=api-url::devapi" ; fi
16
17  - uses: pCYSl5EDgo/cat@master
18    id: slack
19    with:
20      path: .github/workflows/slack.txt
21
22  - name: Slack Start Notification
23    uses: 8398a7/action-slack@v3
24    env:
25      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
26      ENVIRONMENT: '`${{ steps.vars.outputs.environment }}`'
27      COLOR: good
28      STATUS: '`Started`'
29    with:
30      status: custom
31      fields: workflow,job,commit,repo,ref,author,took
32      custom_payload: |
33        ${{ steps.slack.outputs.text }}
34
35  - name: Installing modules
36    env:
37      REACT_APP_API_URL: 'https://${{ steps.vars.outputs.api-url }}mergestack.com/api/v1'
38    run: yarn install
39
40  - name: Create Frontend Build
41    env:
42      REACT_APP_API_URL: 'https://${{ steps.vars.outputs.api-url }}mergestack.com/api/v1'
43    run: yarn build
44
45  - name: Deploy to Frontend Server DEV
46    if: ${{ contains(github.ref, 'dev') }}
47    uses: easingthemes/ssh-deploy@v2.1.5
48    env:
49      SSH_PRIVATE_KEY: ${{ secrets.DEV_KEY }}
50      ARGS: '-rltgoDzvO --delete'
51      SOURCE: 'deploy/'
52      REMOTE_HOST: ${{ secrets.DEV_HOST }}
53      REMOTE_USER: plyfolio-dev
54      TARGET: '/home/plyfolio-dev/${{ steps.vars.outputs.environment }}/fe/deploy'
55   {
56  "name": "stackstream-fe",
57  "version": "1.0.0",
58  "authors": [
59    "fayyaznofal@gmail.com"
60  ],
61  "private": true,
62  "dependencies": {
63    "@fortawesome/fontawesome-svg-core": "^1.2.34",
64    "@fortawesome/free-solid-svg-icons": "^5.15.2",
65    "@fortawesome/react-fontawesome": "^0.1.14",
66    "@fullcalendar/bootstrap": "^5.5.0",
67    "@fullcalendar/core": "^5.5.0",
68    "@fullcalendar/daygrid": "^5.5.0",
69    "@fullcalendar/interaction": "^5.5.0",
70    "@fullcalendar/react": "^5.5.0",
71    "@lourenci/react-kanban": "^2.1.0",
72    "@redux-saga/simple-saga-monitor": "^1.1.2",
73    "@testing-library/jest-dom": "^5.11.9",
74    "@testing-library/react": "^11.2.3",
75    "@testing-library/user-event": "^12.6.0",
76    "@toast-ui/react-chart": "^1.0.2",
77    "@types/jest": "^26.0.14",
78    "@types/node": "^14.10.3",
79    "@types/react": "^16.9.49",
80    "@types/react-dom": "^16.9.8",
81    "@vtaits/react-color-picker": "^0.1.1",
82    "apexcharts": "^3.23.1",
83    "availity-reactstrap-validation": "^2.7.0",
84    "axios": "^0.21.1",
85    "axios-mock-adapter": "^1.19.0",
86    "axios-progress-bar": "^1.2.0",
87    "bootstrap": "^5.0.0-beta2",
88    "chart.js": "^2.9.4",
89    "chartist": "^0.11.4",
90    "classnames": "^2.2.6",
91    "components": "^0.1.0",
92    "dotenv": "^8.2.0",
93    "draft-js": "^0.11.7",
94    "echarts": "^4.9.0",
95    "echarts-for-react": "^2.0.16",
96    "firebase": "^8.2.3",
97    "google-maps-react": "^2.0.6",
98    "history": "^4.10.1",
99    "i": "^0.3.6",
100    "i18next": "^19.8.4",
101    "i18next-browser-languagedetector": "^6.0.1",
102    "jsonwebtoken": "^8.5.1",
103    "leaflet": "^1.7.1",
104    "lodash": "^4.17.21",
105    "lodash.clonedeep": "^4.5.0",
106    "lodash.get": "^4.4.2",
107    "metismenujs": "^1.2.1",
108    "mkdirp": "^1.0.4",
109    "moment": "2.29.1",
110    "moment-timezone": "^0.5.32",
111    "nouislider-react": "^3.3.9",
112    "npm": "^7.6.3",
113    "prop-types": "^15.7.2",
114    "query-string": "^6.14.0",
115    "react": "^16.13.1",
116    "react-apexcharts": "^1.3.7",
117    "react-auth-code-input": "^1.0.0",
118    "react-avatar": "^3.10.0",
119    "react-bootstrap": "^1.5.0",
120    "react-bootstrap-editable": "^0.8.2",
121    "react-bootstrap-sweetalert": "^5.2.0",
122    "react-bootstrap-table-next": "^4.0.3",
123    "react-bootstrap-table2-editor": "^1.4.0",
124    "react-bootstrap-table2-paginator": "^2.1.2",
125    "react-bootstrap-table2-toolkit": "^2.1.3",
126    "react-chartist": "^0.14.3",
127    "react-chartjs-2": "^2.11.1",
128    "react-color": "^2.19.3",
129    "react-confirm-alert": "^2.7.0",
130    "react-content-loader": "^6.0.1",
131    "react-countdown": "^2.3.1",
132    "react-countup": "^4.3.3",
133    "react-cropper": "^2.1.4",
134    "react-data-table-component": "^6.11.8",
135    "react-date-picker": "^8.0.6",
136    "react-datepicker": "^3.4.1",
137    "react-dom": "^16.13.1",
138    "react-draft-wysiwyg": "^1.14.5",
139    "react-drag-listview": "^0.1.8",
140    "react-drawer": "^1.3.4",
141    "react-dropzone": "^11.2.4",
142    "react-dual-listbox": "^2.0.0",
143    "react-facebook-login": "^4.1.1",
144    "react-flatpickr": "^3.10.6",
145    "react-google-login": "^5.2.2",
146    "react-hook-form": "^7.15.2",
147    "react-i18next": "^11.8.5",
148    "react-icons": "^4.2.0",
149    "react-image-lightbox": "^5.1.1",
150    "react-input-mask": "^2.0.4",
151    "react-jvectormap": "^0.0.16",
152    "react-leaflet": "^3.0.5",
153    "react-meta-tags": "^1.0.1",
154    "react-modal-video": "^1.2.6",
155    "react-notifications": "^1.7.2",
156    "react-number-format": "^4.7.3",
157    "react-perfect-scrollbar": "^1.5.8",
158    "react-rangeslider": "^2.2.0",
159    "react-rating": "^2.0.5",
160    "react-rating-tooltip": "^1.1.6",
161    "react-redux": "^7.2.1",
162    "react-responsive-carousel": "^3.2.11",
163    "react-router-dom": "^5.2.0",
164    "react-script": "^2.0.5",
165    "react-scripts": "3.4.3",
166    "react-select": "^4.3.1",
167    "react-sparklines": "^1.7.0",
168    "react-star-ratings": "^2.3.0",
169    "react-super-responsive-table": "^5.2.0",
170    "react-switch": "^6.0.0",
171    "react-table": "^7.6.3",
172    "react-toastify": "^7.0.3",
173    "react-toastr": "^3.0.0",
174    "react-twitter-auth": "0.0.13",
175    "reactstrap": "^8.8.1",
176    "recharts": "^2.0.8",
177    "redux": "^4.0.5",
178    "redux-saga": "^1.1.3",
179    "reselect": "^4.0.0",
180    "sass": "^1.37.5",
181    "simplebar-react": "^2.3.0",
182    "styled": "^1.0.0",
183    "styled-components": "^5.2.1",
184    "toastr": "^2.1.4",
185    "typescript": "^4.0.2",
186    "universal-cookie": "^4.0.4"
187  },
188  "devDependencies": {
189    "@typescript-eslint/eslint-plugin": "^2.27.0",
190    "@typescript-eslint/parser": "^2.27.0",
191    "@typescript-eslint/typescript-estree": "^4.15.2",
192    "eslint-config-prettier": "^6.10.1",
193    "eslint-plugin-prettier": "^3.1.2",
194    "husky": "^4.2.5",
195    "lint-staged": "^10.1.3",
196    "prettier": "^1.19.1",
197    "react-test-renderer": "^16.13.1",
198    "redux-devtools-extension": "^2.13.8",
199    "redux-mock-store": "^1.5.4"
200  },
201  "scripts": {
202    "start": "react-scripts start",
203    "build": "react-scripts build && mv build ./deploy/build",
204    "build-local": "react-scripts build",
205    "test": "react-scripts test",
206    "eject": "react-scripts eject"
207  },
208  "eslintConfig": {
209    "extends": "react-app"
210  },
211  "husky": {
212    "hooks": {
213      "pre-commit": "lint-staged"
214    }
215  },
216  "lint-staged": {
217    "*.{js,ts,tsx}": [
218      "eslint --fix"
219    ]
220  },
221  "browserslist": {
222    "production": [
223      ">0.2%",
224      "not dead",
225      "not op_mini all"
226    ],
227    "development": [
228      "last 1 chrome version",
229      "last 1 firefox version",
230      "last 1 safari version"
231    ]
232  }
233}
234    - name: Fix up git URLs
235      run: echo -e '[url "https://github.com/"]\n  insteadOf = "git://github.com/"' >> ~/.gitconfig
236git config --global url."https://github.com/".insteadOf git://github.com/
237

1Command: git
2Arguments: ls-remote --tags --heads git://github.com/adobe-webplatform/eve.git
3Directory: /home/runner/work/stackstream-fe/stackstream-fe
4Output:
5fatal: remote error: 
6  The unauthenticated git protocol on port 9418 is no longer supported.
7    - name: Installing modules
8      run: yarn install
9  steps:
10  - name: Checkout
11    uses: actions/checkout@v2
12
13  - id: vars
14    run: |
15      if [ '${{ github.ref }}' == 'refs/heads/master' ]; then echo "::set-output name=environment::prod_stackstream" ; echo "::set-output name=api-url::api" ; elif [ '${{ github.ref }}' == 'refs/heads/staging' ]; then echo "::set-output name=environment::staging_stackstream"  ; echo "::set-output name=api-url::stagingapi" ; else echo "::set-output name=environment::dev_stackstream" ; echo "::set-output name=api-url::devapi" ; fi
16
17  - uses: pCYSl5EDgo/cat@master
18    id: slack
19    with:
20      path: .github/workflows/slack.txt
21
22  - name: Slack Start Notification
23    uses: 8398a7/action-slack@v3
24    env:
25      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
26      ENVIRONMENT: '`${{ steps.vars.outputs.environment }}`'
27      COLOR: good
28      STATUS: '`Started`'
29    with:
30      status: custom
31      fields: workflow,job,commit,repo,ref,author,took
32      custom_payload: |
33        ${{ steps.slack.outputs.text }}
34
35  - name: Installing modules
36    env:
37      REACT_APP_API_URL: 'https://${{ steps.vars.outputs.api-url }}mergestack.com/api/v1'
38    run: yarn install
39
40  - name: Create Frontend Build
41    env:
42      REACT_APP_API_URL: 'https://${{ steps.vars.outputs.api-url }}mergestack.com/api/v1'
43    run: yarn build
44
45  - name: Deploy to Frontend Server DEV
46    if: ${{ contains(github.ref, 'dev') }}
47    uses: easingthemes/ssh-deploy@v2.1.5
48    env:
49      SSH_PRIVATE_KEY: ${{ secrets.DEV_KEY }}
50      ARGS: '-rltgoDzvO --delete'
51      SOURCE: 'deploy/'
52      REMOTE_HOST: ${{ secrets.DEV_HOST }}
53      REMOTE_USER: plyfolio-dev
54      TARGET: '/home/plyfolio-dev/${{ steps.vars.outputs.environment }}/fe/deploy'
55   {
56  "name": "stackstream-fe",
57  "version": "1.0.0",
58  "authors": [
59    "fayyaznofal@gmail.com"
60  ],
61  "private": true,
62  "dependencies": {
63    "@fortawesome/fontawesome-svg-core": "^1.2.34",
64    "@fortawesome/free-solid-svg-icons": "^5.15.2",
65    "@fortawesome/react-fontawesome": "^0.1.14",
66    "@fullcalendar/bootstrap": "^5.5.0",
67    "@fullcalendar/core": "^5.5.0",
68    "@fullcalendar/daygrid": "^5.5.0",
69    "@fullcalendar/interaction": "^5.5.0",
70    "@fullcalendar/react": "^5.5.0",
71    "@lourenci/react-kanban": "^2.1.0",
72    "@redux-saga/simple-saga-monitor": "^1.1.2",
73    "@testing-library/jest-dom": "^5.11.9",
74    "@testing-library/react": "^11.2.3",
75    "@testing-library/user-event": "^12.6.0",
76    "@toast-ui/react-chart": "^1.0.2",
77    "@types/jest": "^26.0.14",
78    "@types/node": "^14.10.3",
79    "@types/react": "^16.9.49",
80    "@types/react-dom": "^16.9.8",
81    "@vtaits/react-color-picker": "^0.1.1",
82    "apexcharts": "^3.23.1",
83    "availity-reactstrap-validation": "^2.7.0",
84    "axios": "^0.21.1",
85    "axios-mock-adapter": "^1.19.0",
86    "axios-progress-bar": "^1.2.0",
87    "bootstrap": "^5.0.0-beta2",
88    "chart.js": "^2.9.4",
89    "chartist": "^0.11.4",
90    "classnames": "^2.2.6",
91    "components": "^0.1.0",
92    "dotenv": "^8.2.0",
93    "draft-js": "^0.11.7",
94    "echarts": "^4.9.0",
95    "echarts-for-react": "^2.0.16",
96    "firebase": "^8.2.3",
97    "google-maps-react": "^2.0.6",
98    "history": "^4.10.1",
99    "i": "^0.3.6",
100    "i18next": "^19.8.4",
101    "i18next-browser-languagedetector": "^6.0.1",
102    "jsonwebtoken": "^8.5.1",
103    "leaflet": "^1.7.1",
104    "lodash": "^4.17.21",
105    "lodash.clonedeep": "^4.5.0",
106    "lodash.get": "^4.4.2",
107    "metismenujs": "^1.2.1",
108    "mkdirp": "^1.0.4",
109    "moment": "2.29.1",
110    "moment-timezone": "^0.5.32",
111    "nouislider-react": "^3.3.9",
112    "npm": "^7.6.3",
113    "prop-types": "^15.7.2",
114    "query-string": "^6.14.0",
115    "react": "^16.13.1",
116    "react-apexcharts": "^1.3.7",
117    "react-auth-code-input": "^1.0.0",
118    "react-avatar": "^3.10.0",
119    "react-bootstrap": "^1.5.0",
120    "react-bootstrap-editable": "^0.8.2",
121    "react-bootstrap-sweetalert": "^5.2.0",
122    "react-bootstrap-table-next": "^4.0.3",
123    "react-bootstrap-table2-editor": "^1.4.0",
124    "react-bootstrap-table2-paginator": "^2.1.2",
125    "react-bootstrap-table2-toolkit": "^2.1.3",
126    "react-chartist": "^0.14.3",
127    "react-chartjs-2": "^2.11.1",
128    "react-color": "^2.19.3",
129    "react-confirm-alert": "^2.7.0",
130    "react-content-loader": "^6.0.1",
131    "react-countdown": "^2.3.1",
132    "react-countup": "^4.3.3",
133    "react-cropper": "^2.1.4",
134    "react-data-table-component": "^6.11.8",
135    "react-date-picker": "^8.0.6",
136    "react-datepicker": "^3.4.1",
137    "react-dom": "^16.13.1",
138    "react-draft-wysiwyg": "^1.14.5",
139    "react-drag-listview": "^0.1.8",
140    "react-drawer": "^1.3.4",
141    "react-dropzone": "^11.2.4",
142    "react-dual-listbox": "^2.0.0",
143    "react-facebook-login": "^4.1.1",
144    "react-flatpickr": "^3.10.6",
145    "react-google-login": "^5.2.2",
146    "react-hook-form": "^7.15.2",
147    "react-i18next": "^11.8.5",
148    "react-icons": "^4.2.0",
149    "react-image-lightbox": "^5.1.1",
150    "react-input-mask": "^2.0.4",
151    "react-jvectormap": "^0.0.16",
152    "react-leaflet": "^3.0.5",
153    "react-meta-tags": "^1.0.1",
154    "react-modal-video": "^1.2.6",
155    "react-notifications": "^1.7.2",
156    "react-number-format": "^4.7.3",
157    "react-perfect-scrollbar": "^1.5.8",
158    "react-rangeslider": "^2.2.0",
159    "react-rating": "^2.0.5",
160    "react-rating-tooltip": "^1.1.6",
161    "react-redux": "^7.2.1",
162    "react-responsive-carousel": "^3.2.11",
163    "react-router-dom": "^5.2.0",
164    "react-script": "^2.0.5",
165    "react-scripts": "3.4.3",
166    "react-select": "^4.3.1",
167    "react-sparklines": "^1.7.0",
168    "react-star-ratings": "^2.3.0",
169    "react-super-responsive-table": "^5.2.0",
170    "react-switch": "^6.0.0",
171    "react-table": "^7.6.3",
172    "react-toastify": "^7.0.3",
173    "react-toastr": "^3.0.0",
174    "react-twitter-auth": "0.0.13",
175    "reactstrap": "^8.8.1",
176    "recharts": "^2.0.8",
177    "redux": "^4.0.5",
178    "redux-saga": "^1.1.3",
179    "reselect": "^4.0.0",
180    "sass": "^1.37.5",
181    "simplebar-react": "^2.3.0",
182    "styled": "^1.0.0",
183    "styled-components": "^5.2.1",
184    "toastr": "^2.1.4",
185    "typescript": "^4.0.2",
186    "universal-cookie": "^4.0.4"
187  },
188  "devDependencies": {
189    "@typescript-eslint/eslint-plugin": "^2.27.0",
190    "@typescript-eslint/parser": "^2.27.0",
191    "@typescript-eslint/typescript-estree": "^4.15.2",
192    "eslint-config-prettier": "^6.10.1",
193    "eslint-plugin-prettier": "^3.1.2",
194    "husky": "^4.2.5",
195    "lint-staged": "^10.1.3",
196    "prettier": "^1.19.1",
197    "react-test-renderer": "^16.13.1",
198    "redux-devtools-extension": "^2.13.8",
199    "redux-mock-store": "^1.5.4"
200  },
201  "scripts": {
202    "start": "react-scripts start",
203    "build": "react-scripts build && mv build ./deploy/build",
204    "build-local": "react-scripts build",
205    "test": "react-scripts test",
206    "eject": "react-scripts eject"
207  },
208  "eslintConfig": {
209    "extends": "react-app"
210  },
211  "husky": {
212    "hooks": {
213      "pre-commit": "lint-staged"
214    }
215  },
216  "lint-staged": {
217    "*.{js,ts,tsx}": [
218      "eslint --fix"
219    ]
220  },
221  "browserslist": {
222    "production": [
223      ">0.2%",
224      "not dead",
225      "not op_mini all"
226    ],
227    "development": [
228      "last 1 chrome version",
229      "last 1 firefox version",
230      "last 1 safari version"
231    ]
232  }
233}
234    - name: Fix up git URLs
235      run: echo -e '[url "https://github.com/"]\n  insteadOf = "git://github.com/"' >> ~/.gitconfig
236git config --global url."https://github.com/".insteadOf git://github.com/
237git config --global url."git@github.com:".insteadOf git://github.com/
238

1router.get('/cells', async (req, res) => {
2    try {
3      const result = await fs.readFile(fullPath, { encoding: 'utf-8' });
4      res.send(JSON.parse(result));
5    } catch (err) {
6      if (err.code === 'ENOENT') { // Object is of type 'unknown'.ts(2571) (local var) err: unknown
7        await fs.writeFile(fullPath, '[]', 'utf-8');
8        res.send([]);
9      } else {
10        throw err;
11      }
12    }
13if (err instanceof SystemError && err.code === 'ENOENT') {
14  // file not found
15}
16

1error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup.
2Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081
3Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01
4Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01
5Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01
6Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01
7Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01
8
9FAILURE: Build failed with an exception.
10
11* What went wrong:
12Execution failed for task ':app:mergeDebugAssets'.
13> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
14   > Could not find com.facebook.yoga:proguard-annotations:1.14.1.
15     Searched in the following locations:
16       - https://dl.google.com/dl/android/maven2/com/facebook/yoga/proguard-annotations/1.14.1/proguard-annotations-1.14.1.pom
17       - https://repo.maven.apache.org/maven2/com/facebook/yoga/proguard-annotations/1.14.1/proguard-annotations-1.14.1.pom
18       - file:/Users/MyUser/.m2/repository/com/facebook/yoga/proguard-annotations/1.14.1/proguard-annotations-1.14.1.pom
19       - file:/Users/MyUser/MyAppFolder/MyApp/node_modules/react-native/android/com/facebook/yoga/proguard-annotations/1.14.1/proguard-annotations-1.14.1.pom
20       - file:/Users/MyUser/MyAppFolder/MyApp/node_modules/jsc-android/dist/com/facebook/yoga/proguard-annotations/1.14.1/proguard-annotations-1.14.1.pom
21       - https://www.jitpack.io/com/facebook/yoga/proguard-annotations/1.14.1/proguard-annotations-1.14.1.pom
22     Required by:
23         project :app > com.facebook.react:react-native:0.64.2
24   > Could not find com.facebook.fbjni:fbjni-java-only:0.0.3.
25     Searched in the following locations:
26       - https://dl.google.com/dl/android/maven2/com/facebook/fbjni/fbjni-java-only/0.0.3/fbjni-java-only-0.0.3.pom
27       - https://repo.maven.apache.org/maven2/com/facebook/fbjni/fbjni-java-only/0.0.3/fbjni-java-only-0.0.3.pom
28       - file:/Users/MyUser/.m2/repository/com/facebook/fbjni/fbjni-java-only/0.0.3/fbjni-java-only-0.0.3.pom
29       - file:/Users/MyUser/MyAppFolder/MyApp/node_modules/react-native/android/com/facebook/fbjni/fbjni-java-only/0.0.3/fbjni-java-only-0.0.3.pom
30       - file:/Users/MyUser/MyAppFolder/MyApp/node_modules/jsc-android/dist/com/facebook/fbjni/fbjni-java-only/0.0.3/fbjni-java-only-0.0.3.pom
31       - https://www.jitpack.io/com/facebook/fbjni/fbjni-java-only/0.0.3/fbjni-java-only-0.0.3.pom
32     Required by:
33         project :app > com.facebook.react:react-native:0.64.2
34   > Could not find com.yqritc:android-scalablevideoview:1.0.4.
35     Searched in the following locations:
36       - https://dl.google.com/dl/android/maven2/com/yqritc/android-scalablevideoview/1.0.4/android-scalablevideoview-1.0.4.pom
37       - https://repo.maven.apache.org/maven2/com/yqritc/android-scalablevideoview/1.0.4/android-scalablevideoview-1.0.4.pom
38       - file:/Users/MyUser/.m2/repository/com/yqritc/android-scalablevideoview/1.0.4/android-scalablevideoview-1.0.4.pom
39       - file:/Users/MyUser/MyAppFolder/MyApp/node_modules/react-native/android/com/yqritc/android-scalablevideoview/1.0.4/android-scalablevideoview-1.0.4.pom
40       - file:/Users/MyUser/MyAppFolder/MyApp/node_modules/jsc-android/dist/com/yqritc/android-scalablevideoview/1.0.4/android-scalablevideoview-1.0.4.pom
41       - https://www.jitpack.io/com/yqritc/android-scalablevideoview/1.0.4/android-scalablevideoview-1.0.4.pom
42     Required by:
43         project :app > project :react-native-video
44
45* Try:
46Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
47
48* Get more help at https://help.gradle.org
49
50BUILD FAILED in 10s
51
52    at makeError (/Users/MyUser/MyAppFolder/MyApp/node_modules/execa/index.js:174:9)
53    at /Users/MyUser/MyAppFolder/MyApp/node_modules/execa/index.js:278:16
54    at processTicksAndRejections (node:internal/process/task_queues:96:5)
55    at async runOnAllDevices (/Users/MyUser/MyAppFolder/MyApp/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/runOnAllDevices.js:94:5)
56    at async Command.handleAction (/Users/MyUser/MyAppFolder/MyApp/node_modules/react-native/node_modules/@react-native-community/cli/build/index.js:186:9)
57// Top-level build file where you can add configuration options common to all sub-projects/modules.
58
59buildscript {
60    ext {
61        buildToolsVersion = "30.0.2"
62        minSdkVersion = 21
63        compileSdkVersion = 30
64        targetSdkVersion = 30
65        ndkVersion = "20.1.5948944"
66        kotlinVersion = "1.3.72"
67    }
68    repositories {
69        repositories {
70            google()
71            maven { url 'https://maven.google.com' }
72            mavenLocal()
73            mavenCentral()
74
75           // jcenter()
76            maven {
77                // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
78                url "$rootDir/../node_modules/react-native/android"
79            }
80        }
81    }
82    dependencies {
83        classpath("com.android.tools.build:gradle:4.2.1")
84        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
85        // NOTE: Do not place your application dependencies here; they belong
86        // in the individual module build.gradle files
87    }
88}
89
90allprojects {
91    repositories {
92        google()
93        mavenCentral()
94
95        mavenLocal()
96        maven {
97            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
98            url("$rootDir/../node_modules/react-native/android")
99        }
100        maven {
101            // Android JSC is installed from npm
102            url("$rootDir/../node_modules/jsc-android/dist")
103        }
104
105        maven { url 'https://www.jitpack.io' }
106    }
107}
108allprojects {
109    repositories {
110        mavenCentral()
111        mavenLocal()
112        jcenter()
113}
114

1for each line:
2   if is youtube A tag,
3       youtube A tag = youtube Iframe tag
4

1for each line:
2   if is youtube A tag,
3       youtube A tag = youtube Iframe tag
4const input = `
5text1
6<a href="https://www.youtube.com/watch?v=youtubeId1">https://www.youtube.com/watch?v=youtubeId1</a>
7text2
8text3
9<a href="https://www.youtube.com/watch?v=youtubeId2">https://www.youtube.com/watch?v=youtubeId2</a>
10`;
11
12const rx = /^.*(?:(?:youtu\.be\/|v\/|vi\/|u\/\w\/|embed\/)|(?:(?:watch)?\?v(?:i)?=|\&v(?:i)?=))([^#\&\?<]*).*/;
13
14const getYoutubeIframe = (youtubeId) => {
15   return `<iframe width="560" height="315" src="https://www.youtube.com/embed/${youtubeId}?controls=0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>`
16}
17
18const output = input.split('\n').map(line => {
19   const youtubeLink = '<a href="https://www.youtube.com/watch?v=';
20   if (line.trim().indexOf(youtubeLink) === 0) {
21      const youtubeId = line.match(rx)[1];
22      return getYoutubeIframe(youtubeId);
23   }
24   return line;
25}).join('\n');
26
27console.log(output);

1actor ImageDownloader {
2    private var cache: [URL: Image] = [:]
3
4    func image(from url: URL) async throws -> Image? {
5        if let cached = cache[url] {
6            return cached
7        }
8
9        let image = try await downloadImage(from: url)
10
11        cache[url] = cache[url, default: image]
12
13        return cache[url]
14    }
15
16    func downloadImage(from url: URL) async throws -> Image { ... }
17}
18actor ImageDownloader {
19    private var cache: [URL: Image] = [:]
20    private var tasks: [URL: Task<Image, Error>] = [:]
21
22    func image(from url: URL) async throws -> Image {
23        if let image = try await tasks[url]?.value {
24            print("found request")
25            return image
26        }
27
28        if let cached = cache[url] {
29            print("found cached")
30            return cached
31        }
32
33        let task = Task {
34            try await download(from: url)
35        }
36
37        tasks[url] = task
38        defer { tasks[url] = nil }
39
40        let image = try await task.value
41        cache[url] = image
42
43        return image
44    }
45
46    private func download(from url: URL) async throws -> Image {
47        let (data, response) = try await URLSession.shared.data(from: url)
48        guard
49            let response = response as? HTTPURLResponse,
50            200 ..< 300 ~= response.statusCode,
51            let image = Image(data: data)
52        else {
53            throw URLError(.badServerResponse)
54        }
55        return image
56    }
57}
58