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This commit is contained in:
Mike Farah 2025-11-09 16:19:04 +11:00
parent 2869919cb4
commit 8c25f33df4
3 changed files with 18 additions and 7 deletions
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1
go.sum
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@ -59,7 +59,6 @@ golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks= golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k= golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM= golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473 h1:6D+BvnJ/j6e222UW8s2qTSe3wGBtvo0MbVQG/c5k8RE= gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473 h1:6D+BvnJ/j6e222UW8s2qTSe3wGBtvo0MbVQG/c5k8RE=
gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473/go.mod h1:N1eN2tsCx0Ydtgjl4cqmbRCsY4/+z4cYDeqwZTk6zog= gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473/go.mod h1:N1eN2tsCx0Ydtgjl4cqmbRCsY4/+z4cYDeqwZTk6zog=

23
pkg/yqlib/doc/operators/first.md
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@ -1,3 +1,8 @@
# First
Returns the first matching element in an array, or first matching value in a map.
Can be given an expression to match with, otherwise will just return the first.
## First matching element from array ## First matching element from array
Given a sample.yml file of: Given a sample.yml file of:
@ -20,8 +25,10 @@ Given a sample.yml file of:
```yaml ```yaml
- a: banana - a: banana
- a: cat - a: cat
b: firstCat
- a: apple - a: apple
- a: cat - a: cat
b: secondCat
``` ```
then then
```bash ```bash
@ -30,6 +37,7 @@ yq 'first(.a == "cat")' sample.yml
will output will output
```yaml ```yaml
a: cat a: cat
b: firstCat
``` ```
## First matching element from array with numeric condition ## First matching element from array with numeric condition
@ -38,6 +46,7 @@ Given a sample.yml file of:
- a: 10 - a: 10
- a: 100 - a: 100
- a: 1 - a: 1
- a: 101
``` ```
then then
```bash ```bash
@ -53,7 +62,10 @@ Given a sample.yml file of:
```yaml ```yaml
- a: false - a: false
- a: true - a: true
b: firstTrue
- a: false - a: false
- a: true
b: secondTrue
``` ```
then then
```bash ```bash
@ -62,6 +74,7 @@ yq 'first(.a == true)' sample.yml
will output will output
```yaml ```yaml
a: true a: true
b: firstTrue
``` ```
## First matching element from array with null values ## First matching element from array with null values
@ -84,19 +97,19 @@ a: cat
Given a sample.yml file of: Given a sample.yml file of:
```yaml ```yaml
- a: dog - a: dog
b: 5 b: 7
- a: cat - a: cat
b: 3 b: 3
- a: apple - a: apple
b: 7 b: 5
``` ```
then then
```bash ```bash
yq 'first(.b > 4)' sample.yml yq 'first(.b > 4 and .b < 6)' sample.yml
``` ```
will output will output
```yaml ```yaml
a: dog a: apple
b: 5 b: 5
``` ```
@ -127,7 +140,7 @@ x:
y: y:
a: 100 a: 100
z: z:
a: 1 a: 101
``` ```
then then
```bash ```bash

1
pkg/yqlib/shellvariables.go
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@ -11,4 +11,3 @@ func NewDefaultShellVariablesPreferences() ShellVariablesPreferences {
} }
var ConfiguredShellVariablesPreferences = NewDefaultShellVariablesPreferences() var ConfiguredShellVariablesPreferences = NewDefaultShellVariablesPreferences()